/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --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_spec2_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:28:55,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:28:55,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:28:55,847 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:28:55,848 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:28:55,849 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:28:55,851 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:28:55,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:28:55,855 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:28:55,856 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:28:55,857 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:28:55,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:28:55,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:28:55,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:28:55,861 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:28:55,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:28:55,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:28:55,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:28:55,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:28:55,869 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:28:55,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:28:55,872 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:28:55,874 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:28:55,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:28:55,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:28:55,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:28:55,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:28:55,880 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:28:55,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:28:55,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:28:55,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:28:55,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:28:55,884 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:28:55,885 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:28:55,886 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:28:55,886 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:28:55,887 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:28:55,888 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:28:55,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:28:55,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:28:55,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:28:55,891 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:28:55,932 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:28:55,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:28:55,938 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:28:55,938 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:28:55,938 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:28:55,938 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:28:55,939 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:28:55,939 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:28:55,940 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:28:55,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:28:55,940 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:28:55,940 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:28:55,940 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:28:55,941 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:28:55,941 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:28:55,941 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:28:55,941 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:28:55,941 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:28:55,942 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:28:55,943 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:28:55,943 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:28:55,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:28:55,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:28:55,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:28:55,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:28:55,945 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:28:55,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:28:55,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:28:55,945 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:28:55,945 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:28:56,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:28:56,446 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:28:56,451 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:28:56,453 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:28:56,453 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:28:56,454 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product24.cil.c [2020-09-25 07:28:56,553 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b5b3d6d5/2e475849f9a44531ad1080969c974289/FLAGdaf23dae3 [2020-09-25 07:28:57,228 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:28:57,233 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product24.cil.c [2020-09-25 07:28:57,258 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b5b3d6d5/2e475849f9a44531ad1080969c974289/FLAGdaf23dae3 [2020-09-25 07:28:57,461 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6b5b3d6d5/2e475849f9a44531ad1080969c974289 [2020-09-25 07:28:57,479 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:28:57,486 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:28:57,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:28:57,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:28:57,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:28:57,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:28:57" (1/1) ... [2020-09-25 07:28:57,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be095dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:57, skipping insertion in model container [2020-09-25 07:28:57,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:28:57" (1/1) ... [2020-09-25 07:28:57,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:28:57,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:28:57,960 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:28:57,996 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:28:58,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:28:58,241 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:28:58,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:58 WrapperNode [2020-09-25 07:28:58,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:28:58,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:28:58,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:28:58,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:28:58,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:58" (1/1) ... [2020-09-25 07:28:58,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:58" (1/1) ... [2020-09-25 07:28:58,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:58" (1/1) ... [2020-09-25 07:28:58,284 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:58" (1/1) ... [2020-09-25 07:28:58,315 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:58" (1/1) ... [2020-09-25 07:28:58,326 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:58" (1/1) ... [2020-09-25 07:28:58,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:58" (1/1) ... [2020-09-25 07:28:58,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:28:58,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:28:58,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:28:58,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:28:58,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:58" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:28:58,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:28:58,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:28:58,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:28:58,428 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:28:58,428 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 07:28:58,428 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 07:28:58,428 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:28:58,429 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:28:58,429 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:28:58,430 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:28:58,430 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:28:58,430 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:28:58,430 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 07:28:58,430 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 07:28:58,430 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 07:28:58,431 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:28:58,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:28:58,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:28:58,431 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:28:58,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:28:58,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:28:58,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:28:58,432 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:28:58,432 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:28:58,432 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:28:58,433 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:28:58,433 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:28:58,433 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:28:58,433 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:28:58,433 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:28:58,433 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:28:58,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 07:28:58,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 07:28:58,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:28:58,434 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:28:58,434 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:28:58,434 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:28:58,435 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:28:58,435 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:28:58,435 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:28:58,435 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 07:28:58,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:28:58,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:28:58,436 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:28:58,436 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:28:58,436 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:28:58,436 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:28:58,436 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 07:28:58,436 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:28:58,437 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:28:58,437 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:28:58,437 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:28:58,437 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:28:58,437 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 07:28:58,438 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 07:28:58,438 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 07:28:58,438 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:28:58,438 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 07:28:58,438 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 07:28:58,438 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-25 07:28:58,439 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:28:58,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:28:58,439 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:28:58,439 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:28:58,439 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:28:58,439 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:28:58,439 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:28:58,440 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:28:58,440 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:28:58,440 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:28:58,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:28:58,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:28:58,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:28:58,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:28:58,441 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:28:58,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:28:58,441 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:28:58,441 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:28:58,441 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:28:58,442 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:28:58,442 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:28:58,442 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:28:58,442 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:28:58,442 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:28:58,442 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:28:58,443 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:28:58,443 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:28:58,443 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:28:58,443 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 07:28:58,443 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:28:58,443 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:28:58,444 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:28:58,444 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:28:58,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:28:58,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:28:58,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:28:59,635 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:28:59,635 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:28:59,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:28:59 BoogieIcfgContainer [2020-09-25 07:28:59,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:28:59,644 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:28:59,645 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:28:59,648 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:28:59,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:28:57" (1/3) ... [2020-09-25 07:28:59,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b29e153 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:28:59, skipping insertion in model container [2020-09-25 07:28:59,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:58" (2/3) ... [2020-09-25 07:28:59,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b29e153 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:28:59, skipping insertion in model container [2020-09-25 07:28:59,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:28:59" (3/3) ... [2020-09-25 07:28:59,653 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product24.cil.c [2020-09-25 07:28:59,666 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:28:59,678 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:28:59,702 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:28:59,739 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:28:59,739 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:28:59,740 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:28:59,740 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:28:59,740 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:28:59,740 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:28:59,740 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:28:59,741 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:28:59,773 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states. [2020-09-25 07:28:59,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 07:28:59,793 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:28:59,795 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:28:59,796 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:28:59,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:28:59,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1511101024, now seen corresponding path program 1 times [2020-09-25 07:28:59,818 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:28:59,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1214296001] [2020-09-25 07:28:59,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:29:00,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:00,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:00,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:02,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:03,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:04,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:05,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:05,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 07:29:05,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:29:05,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 07:29:05,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:05,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:05,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:05,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 07:29:05,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:05,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 07:29:05,703 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:29:05,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:29:05,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:05,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:05,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:05,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:29:05,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:05,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 07:29:05,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:05,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:05,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:05,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:05,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:05,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:05,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:29:05,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:05,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:05,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:05,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:05,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:05,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:05,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:05,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:05,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:05,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:05,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:05,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:05,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:29:05,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:05,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:05,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:05,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:05,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:05,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:05,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:05,930 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:05,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:05,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:05,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:05,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:05,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:29:05,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:05,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:05,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:05,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:05,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:05,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:29:05,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:05,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:05,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:05,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:05,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:05,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:05,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:29:05,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:05,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:05,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:05,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:05,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:05,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:05,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:05,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:05,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:05,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:05,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:05,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:05,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:29:05,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:05,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:05,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:05,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:29:05,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:05,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:05,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:05,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:05,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:05,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:05,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:05,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:05,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 07:29:05,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:05,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:05,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:05,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:05,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:05,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:05,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:05,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:05,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:05,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:29:05,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:05,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:05,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 07:29:05,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:05,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:05,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:05,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:05,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:05,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:06,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:06,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:06,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:06,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:29:06,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:06,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:06,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:29:06,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1214296001] [2020-09-25 07:29:06,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:29:06,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:29:06,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616236204] [2020-09-25 07:29:06,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:29:06,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:29:06,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:29:06,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:29:06,100 INFO L87 Difference]: Start difference. First operand 314 states. Second operand 4 states. [2020-09-25 07:29:08,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:29:08,087 INFO L93 Difference]: Finished difference Result 493 states and 590 transitions. [2020-09-25 07:29:08,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:29:08,089 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 07:29:08,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:29:08,112 INFO L225 Difference]: With dead ends: 493 [2020-09-25 07:29:08,112 INFO L226 Difference]: Without dead ends: 315 [2020-09-25 07:29:08,119 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:29:08,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-09-25 07:29:08,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 263. [2020-09-25 07:29:08,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-09-25 07:29:08,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 288 transitions. [2020-09-25 07:29:08,239 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 288 transitions. Word has length 148 [2020-09-25 07:29:08,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:29:08,240 INFO L479 AbstractCegarLoop]: Abstraction has 263 states and 288 transitions. [2020-09-25 07:29:08,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:29:08,240 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 288 transitions. [2020-09-25 07:29:08,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 07:29:08,245 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:29:08,245 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:29:08,246 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:29:08,246 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:29:08,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:29:08,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1531799497, now seen corresponding path program 1 times [2020-09-25 07:29:08,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:29:08,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1352345606] [2020-09-25 07:29:08,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:29:08,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:08,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:08,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:10,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:10,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:12,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:13,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:13,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:13,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 07:29:13,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:29:13,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-09-25 07:29:13,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:13,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:13,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:13,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 07:29:13,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:29:13,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:13,643 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:29:13,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:29:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:13,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:13,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:13,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:29:13,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:13,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-09-25 07:29:13,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:13,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:13,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:13,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:13,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:13,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:13,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:29:13,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:13,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:13,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:13,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:13,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:13,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:13,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:13,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:13,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:13,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:13,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:13,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:13,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:29:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:13,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:13,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:13,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:13,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:13,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:13,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:13,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:13,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:13,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:13,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:13,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:29:13,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:29:13,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:13,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:13,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:13,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:13,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:13,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:29:13,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:13,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:13,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:13,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:13,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:13,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:29:13,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:29:13,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:13,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:13,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:13,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:13,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:13,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:13,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:13,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:13,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:13,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:13,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:13,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 40 [2020-09-25 07:29:13,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:29:13,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:13,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:13,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:13,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:29:13,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:13,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:13,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:13,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:13,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:13,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:13,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:13,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:29:13,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 07:29:13,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:13,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:13,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:13,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:13,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:13,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:13,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:13,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:13,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:13,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:29:13,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:13,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:13,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 07:29:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:13,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:13,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:13,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:13,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:13,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:29:13,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:13,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:13,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:13,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:29:13,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:13,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:13,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:29:13,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1352345606] [2020-09-25 07:29:13,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:29:13,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:29:13,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587140142] [2020-09-25 07:29:13,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:29:13,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:29:13,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:29:13,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:29:13,978 INFO L87 Difference]: Start difference. First operand 263 states and 288 transitions. Second operand 5 states. [2020-09-25 07:29:14,716 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:29:15,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:29:15,989 INFO L93 Difference]: Finished difference Result 412 states and 473 transitions. [2020-09-25 07:29:15,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:29:15,990 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 07:29:15,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:29:15,994 INFO L225 Difference]: With dead ends: 412 [2020-09-25 07:29:15,995 INFO L226 Difference]: Without dead ends: 304 [2020-09-25 07:29:15,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:29:15,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-09-25 07:29:16,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 253. [2020-09-25 07:29:16,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-09-25 07:29:16,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 275 transitions. [2020-09-25 07:29:16,045 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 275 transitions. Word has length 149 [2020-09-25 07:29:16,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:29:16,046 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 275 transitions. [2020-09-25 07:29:16,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:29:16,047 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 275 transitions. [2020-09-25 07:29:16,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 07:29:16,049 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:29:16,050 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:29:16,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:29:16,050 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:29:16,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:29:16,050 INFO L82 PathProgramCache]: Analyzing trace with hash 931015200, now seen corresponding path program 1 times [2020-09-25 07:29:16,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:29:16,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [140978089] [2020-09-25 07:29:16,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:29:16,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:16,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:16,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:17,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:17,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:18,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:21,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:21,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 07:29:21,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:29:21,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-25 07:29:21,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:21,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:21,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:21,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 07:29:21,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:29:21,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:21,479 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:29:21,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:29:21,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:21,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:21,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:21,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:29:21,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:21,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-09-25 07:29:21,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:21,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:21,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:21,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:21,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:21,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:21,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:29:21,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:21,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:21,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:21,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:21,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:21,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:21,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:21,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:21,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:21,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:21,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:21,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:21,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:29:21,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:21,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:21,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:21,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:21,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:21,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:21,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:21,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:21,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:21,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:21,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:21,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:21,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:29:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:21,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:21,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:21,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:21,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:21,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:29:21,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:21,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:21,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:21,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:21,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:21,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:21,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:29:21,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:21,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:21,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:21,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:21,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:21,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:21,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:21,645 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:21,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:21,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:21,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:21,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:21,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:29:21,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:21,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:21,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:21,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:29:21,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:21,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:21,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:21,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:21,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:21,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:21,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:21,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:21,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 07:29:21,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:21,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:21,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:21,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:29:21,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:21,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:29:21,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:21,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:21,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:21,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:21,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:29:21,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:21,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 07:29:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:21,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:21,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:21,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:21,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:21,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 07:29:21,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:21,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:21,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:21,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:29:21,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:21,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:21,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 07:29:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:21,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:21,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:21,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:21,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:21,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:21,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:21,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:21,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:21,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:29:21,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:21,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:21,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:29:21,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [140978089] [2020-09-25 07:29:21,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:29:21,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:29:21,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408316675] [2020-09-25 07:29:21,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:29:21,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:29:21,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:29:21,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:29:21,764 INFO L87 Difference]: Start difference. First operand 253 states and 275 transitions. Second operand 6 states. [2020-09-25 07:29:22,272 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:29:24,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:29:24,430 INFO L93 Difference]: Finished difference Result 613 states and 725 transitions. [2020-09-25 07:29:24,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:29:24,431 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 07:29:24,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:29:24,435 INFO L225 Difference]: With dead ends: 613 [2020-09-25 07:29:24,436 INFO L226 Difference]: Without dead ends: 475 [2020-09-25 07:29:24,437 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:29:24,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2020-09-25 07:29:24,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 381. [2020-09-25 07:29:24,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-09-25 07:29:24,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 426 transitions. [2020-09-25 07:29:24,518 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 426 transitions. Word has length 162 [2020-09-25 07:29:24,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:29:24,518 INFO L479 AbstractCegarLoop]: Abstraction has 381 states and 426 transitions. [2020-09-25 07:29:24,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:29:24,519 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 426 transitions. [2020-09-25 07:29:24,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 07:29:24,521 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:29:24,521 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:29:24,522 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:29:24,522 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:29:24,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:29:24,522 INFO L82 PathProgramCache]: Analyzing trace with hash 1769264987, now seen corresponding path program 1 times [2020-09-25 07:29:24,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:29:24,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1671256323] [2020-09-25 07:29:24,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:29:24,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:24,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:25,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:25,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:26,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:28,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:29,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:29,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 07:29:29,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:29:29,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-09-25 07:29:29,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:29,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:29,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:29:29,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 07:29:29,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 07:29:29,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:29,930 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:29:29,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:29:29,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:29,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:30,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:30,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:29:30,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:30,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 07:29:30,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:30,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:30,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:30,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:30,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:30,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:30,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:29:30,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:30,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:30,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:30,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:30,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:30,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:30,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:30,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:30,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:30,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:30,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:30,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:29:30,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:29:30,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:30,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:30,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:30,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:30,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:30,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:30,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:30,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:30,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:30,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:30,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:30,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:29:30,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:29:30,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:30,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:30,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:30,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:30,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:30,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:29:30,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:30,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:30,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:30,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:30,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:30,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:30,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:29:30,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:30,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:30,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:30,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:30,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:30,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:29:30,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:30,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:30,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:30,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:30,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:30,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:30,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:29:30,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:30,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:30,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:30,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:29:30,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:30,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:30,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:30,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:30,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:30,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:30,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:29:30,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:29:30,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 07:29:30,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:30,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:30,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:30,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:29:30,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:30,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:29:30,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:30,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:30,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:30,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:30,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:29:30,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 07:29:30,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 07:29:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:30,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:30,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:30,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:30,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:30,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:29:30,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:30,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:30,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:30,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:30,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:29:30,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:30,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 07:29:30,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:30,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:30,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:30,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:30,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:30,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:30,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:30,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:30,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:30,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:30,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:29:30,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:30,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:29:30,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1671256323] [2020-09-25 07:29:30,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:29:30,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:29:30,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972281050] [2020-09-25 07:29:30,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:29:30,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:29:30,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:29:30,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:29:30,277 INFO L87 Difference]: Start difference. First operand 381 states and 426 transitions. Second operand 6 states. [2020-09-25 07:29:30,893 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:29:33,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:29:33,406 INFO L93 Difference]: Finished difference Result 856 states and 1064 transitions. [2020-09-25 07:29:33,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:29:33,407 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-09-25 07:29:33,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:29:33,414 INFO L225 Difference]: With dead ends: 856 [2020-09-25 07:29:33,414 INFO L226 Difference]: Without dead ends: 853 [2020-09-25 07:29:33,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:29:33,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2020-09-25 07:29:33,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 650. [2020-09-25 07:29:33,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 650 states. [2020-09-25 07:29:33,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 743 transitions. [2020-09-25 07:29:33,525 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 743 transitions. Word has length 167 [2020-09-25 07:29:33,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:29:33,526 INFO L479 AbstractCegarLoop]: Abstraction has 650 states and 743 transitions. [2020-09-25 07:29:33,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:29:33,526 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 743 transitions. [2020-09-25 07:29:33,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-25 07:29:33,531 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:29:33,532 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-25 07:29:33,532 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:29:33,532 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:29:33,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:29:33,533 INFO L82 PathProgramCache]: Analyzing trace with hash -932811084, now seen corresponding path program 1 times [2020-09-25 07:29:33,533 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:29:33,533 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1885158899] [2020-09-25 07:29:33,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:29:33,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:33,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:33,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:34,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:34,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:36,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:38,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:38,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-25 07:29:38,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:29:38,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-09-25 07:29:38,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:38,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:38,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:29:38,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 07:29:38,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 07:29:38,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:29:38,943 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:29:38,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:29:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:38,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:39,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:39,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:29:39,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:39,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-09-25 07:29:39,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:39,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:39,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:39,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:39,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:39,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:39,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:29:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:39,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:39,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:39,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:39,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:39,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:39,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:39,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:39,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:39,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:39,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:39,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:39,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:29:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:39,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:39,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:39,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:39,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:39,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:29:39,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:39,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:39,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:39,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:39,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:39,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:39,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:29:39,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:39,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:39,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:39,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:39,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:39,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 07:29:39,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:39,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:39,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:39,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:39,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:39,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:39,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:29:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:39,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:39,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:39,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:39,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:39,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:39,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:39,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:39,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:39,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:39,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:39,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:39,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:29:39,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:39,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:39,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:39,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:29:39,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:39,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:29:39,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:39,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:39,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:39,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:39,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:39,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:39,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 07:29:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:39,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:39,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:39,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 07:29:39,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:39,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:29:39,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:39,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:39,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:39,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:39,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:29:39,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:39,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 07:29:39,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:39,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:39,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:39,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:39,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 07:29:39,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:29:39,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-25 07:29:39,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:39,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:39,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:29:39,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 07:29:39,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 07:29:39,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:39,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:29:39,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:39,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:39,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:39,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 07:29:39,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:39,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-09-25 07:29:39,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:39,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:39,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 07:29:39,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:39,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 07:29:39,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:39,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:29:39,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:39,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:39,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:39,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:39,490 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:39,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:29:39,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:39,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:39,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:39,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:39,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:39,491 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:29:39,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 07:29:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:39,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:39,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:39,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:39,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:39,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 07:29:39,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:39,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:39,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:29:39,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:39,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:29:39,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:29:39,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-25 07:29:39,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:39,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:39,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:39,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:39,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:39,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:39,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:39,541 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:39,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:39,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:29:39,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:39,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:39,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-25 07:29:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:39,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:39,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:39,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:39,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:39,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:39,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:39,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:39,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:39,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:29:39,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:39,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:39,596 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 35 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 07:29:39,597 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1885158899] [2020-09-25 07:29:39,597 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:29:39,598 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 07:29:39,598 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159726283] [2020-09-25 07:29:39,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 07:29:39,599 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:29:39,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 07:29:39,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-09-25 07:29:39,600 INFO L87 Difference]: Start difference. First operand 650 states and 743 transitions. Second operand 14 states. [2020-09-25 07:29:40,248 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:29:41,792 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:29:42,128 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:29:42,510 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:29:42,867 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 07:29:43,153 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:29:43,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:29:43,680 INFO L93 Difference]: Finished difference Result 894 states and 1081 transitions. [2020-09-25 07:29:43,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 07:29:43,681 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 217 [2020-09-25 07:29:43,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:29:43,682 INFO L225 Difference]: With dead ends: 894 [2020-09-25 07:29:43,682 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 07:29:43,685 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=214, Invalid=598, Unknown=0, NotChecked=0, Total=812 [2020-09-25 07:29:43,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 07:29:43,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 07:29:43,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 07:29:43,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 07:29:43,687 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 217 [2020-09-25 07:29:43,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:29:43,687 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 07:29:43,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 07:29:43,687 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 07:29:43,687 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 07:29:43,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:29:43,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 07:29:43,905 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:29:44,109 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:29:44,579 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 194 [2020-09-25 07:29:45,017 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 194 [2020-09-25 07:29:45,432 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 194 [2020-09-25 07:29:45,819 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 191