/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=0.6 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:30:27,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:30:27,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:30:27,900 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:30:27,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:30:27,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:30:27,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:30:27,905 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:30:27,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:30:27,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:30:27,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:30:27,911 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:30:27,911 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:30:27,912 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:30:27,914 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:30:27,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:30:27,916 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:30:27,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:30:27,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:30:27,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:30:27,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:30:27,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:30:27,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:30:27,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:30:27,928 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:30:27,928 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:30:27,929 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:30:27,930 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:30:27,930 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:30:27,931 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:30:27,932 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:30:27,932 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:30:27,933 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:30:27,934 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:30:27,935 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:30:27,936 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:30:27,936 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:30:27,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:30:27,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:30:27,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:30:27,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:30:27,940 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 06:30:27,967 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:30:27,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:30:27,968 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:30:27,968 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:30:27,972 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:30:27,972 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:30:27,972 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:30:27,972 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:30:27,973 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:30:27,973 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:30:27,973 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:30:27,973 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:30:27,973 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:30:27,974 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:30:27,974 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:30:27,974 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:30:27,974 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:30:27,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:30:27,977 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:30:27,977 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:30:27,977 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:30:27,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:30:27,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:30:27,978 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:30:27,978 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:30:27,978 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:30:27,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:30:27,978 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:30:27,978 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:30:27,978 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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;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=0.6;log-additional-information=true; [2020-09-25 06:30:28,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:30:28,479 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:30:28,483 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:30:28,487 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:30:28,488 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:30:28,489 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product34.cil.c [2020-09-25 06:30:28,574 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c98d8681d/a65d469c3a6346b19831d0630ee87e9e/FLAG7fa111664 [2020-09-25 06:30:29,170 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:30:29,171 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec5_product34.cil.c [2020-09-25 06:30:29,186 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c98d8681d/a65d469c3a6346b19831d0630ee87e9e/FLAG7fa111664 [2020-09-25 06:30:29,450 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c98d8681d/a65d469c3a6346b19831d0630ee87e9e [2020-09-25 06:30:29,464 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:30:29,470 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:30:29,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:30:29,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:30:29,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:30:29,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:30:29" (1/1) ... [2020-09-25 06:30:29,482 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 06:30:29, skipping insertion in model container [2020-09-25 06:30:29,482 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:30:29" (1/1) ... [2020-09-25 06:30:29,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:30:29,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:30:30,067 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:30:30,082 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:30:30,157 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:30:30,198 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:30:30,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:30:30 WrapperNode [2020-09-25 06:30:30,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:30:30,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:30:30,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:30:30,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:30:30,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:30:30" (1/1) ... [2020-09-25 06:30:30,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:30:30" (1/1) ... [2020-09-25 06:30:30,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:30:30" (1/1) ... [2020-09-25 06:30:30,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:30:30" (1/1) ... [2020-09-25 06:30:30,285 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:30:30" (1/1) ... [2020-09-25 06:30:30,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:30:30" (1/1) ... [2020-09-25 06:30:30,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:30:30" (1/1) ... [2020-09-25 06:30:30,311 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:30:30,312 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:30:30,312 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:30:30,312 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:30:30,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:30:30" (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 06:30:30,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:30:30,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:30:30,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:30:30,409 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:30:30,409 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:30:30,410 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:30:30,410 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:30:30,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:30:30,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:30:30,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:30:30,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:30:30,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:30:30,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:30:30,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:30:30,412 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:30:30,412 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:30:30,412 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:30:30,412 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:30:30,412 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:30:30,413 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:30:30,413 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 06:30:30,413 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:30:30,413 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:30:30,414 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:30:30,414 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:30:30,414 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:30:30,414 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:30:30,414 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:30:30,415 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:30:30,415 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:30:30,415 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 06:30:30,415 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 06:30:30,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-09-25 06:30:30,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-09-25 06:30:30,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-09-25 06:30:30,416 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:30:30,416 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:30:30,416 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:30:30,416 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:30:30,417 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:30:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:30:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:30:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:30:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:30:30,417 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:30:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:30:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:30:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:30:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:30:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:30:30,418 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:30:30,419 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:30:30,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:30:30,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:30:30,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:30:30,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:30:30,419 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:30:30,420 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:30:30,420 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:30:30,420 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:30:30,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:30:30,420 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:30:30,420 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:30:30,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:30:30,421 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:30:30,421 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:30:30,421 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:30:30,421 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:30:30,421 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:30:30,422 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:30:30,422 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:30:30,422 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 06:30:30,422 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 06:30:30,422 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:30:30,422 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:30:30,423 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:30:30,423 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:30:30,423 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:30:30,423 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:30:30,423 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:30:30,423 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-09-25 06:30:30,424 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-09-25 06:30:30,424 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:30:30,424 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:30:30,424 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 06:30:30,424 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:30:30,424 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-09-25 06:30:30,424 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:30:30,425 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:30:30,425 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:30:30,425 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:30:30,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:30:30,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:30:30,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:30:31,708 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:30:31,709 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:30:31,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:30:31 BoogieIcfgContainer [2020-09-25 06:30:31,717 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:30:31,718 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:30:31,718 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:30:31,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:30:31,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:30:29" (1/3) ... [2020-09-25 06:30:31,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd0bc06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:30:31, skipping insertion in model container [2020-09-25 06:30:31,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:30:30" (2/3) ... [2020-09-25 06:30:31,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd0bc06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:30:31, skipping insertion in model container [2020-09-25 06:30:31,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:30:31" (3/3) ... [2020-09-25 06:30:31,726 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product34.cil.c [2020-09-25 06:30:31,739 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:30:31,750 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:30:31,774 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:30:31,808 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:30:31,808 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:30:31,808 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:30:31,809 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:30:31,809 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:30:31,809 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:30:31,809 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:30:31,809 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:30:31,837 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states. [2020-09-25 06:30:31,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-25 06:30:31,855 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:30:31,856 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:30:31,857 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:30:31,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:30:31,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1009197842, now seen corresponding path program 1 times [2020-09-25 06:30:31,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:30:31,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2078892787] [2020-09-25 06:30:31,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:30:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:32,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:32,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:34,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:34,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:37,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:37,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:37,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-09-25 06:30:37,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:30:37,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-25 06:30:37,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:37,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:37,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:37,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 06:30:37,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:37,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-09-25 06:30:37,645 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:30:37,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:30:37,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:37,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:37,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:37,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:30:37,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:37,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-09-25 06:30:37,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:37,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:37,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:37,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:37,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:37,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:37,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:30:37,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:37,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:37,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:37,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:30:37,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:37,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:30:37,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:37,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:37,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:37,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:37,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:37,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:37,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:30:37,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:37,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:37,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:37,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:30:37,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:37,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:30:37,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:37,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:37,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:37,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:37,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:37,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:37,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:30:37,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:37,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:37,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:37,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:30:37,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:37,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:30:37,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:37,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:37,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:37,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:37,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:37,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:37,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:30:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:37,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:37,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:37,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:30:37,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:37,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:30:37,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:37,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:37,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:37,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:37,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:37,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:37,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:30:37,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:37,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:37,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:37,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:30:37,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:37,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:30:37,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:37,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:37,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:37,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:37,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:37,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:37,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 06:30:37,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:37,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:37,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:37,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:30:37,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:37,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:30:37,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:37,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:37,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:37,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 06:30:37,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:37,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:30:37,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:30:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:37,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:37,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:37,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:30:37,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:37,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:30:37,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:37,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:37,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:37,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:37,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:37,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:37,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 06:30:37,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:37,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:37,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:37,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:30:37,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:37,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:30:37,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:37,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:37,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:37,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:30:37,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:37,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 06:30:37,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 06:30:37,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:37,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:37,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:37,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:30:37,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:37,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:30:37,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:38,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:38,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:38,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:30:38,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:38,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:30:38,064 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 06:30:38,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2078892787] [2020-09-25 06:30:38,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:30:38,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:30:38,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937259906] [2020-09-25 06:30:38,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:30:38,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:30:38,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:30:38,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:30:38,099 INFO L87 Difference]: Start difference. First operand 295 states. Second operand 4 states. [2020-09-25 06:30:39,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:30:39,104 INFO L93 Difference]: Finished difference Result 447 states and 526 transitions. [2020-09-25 06:30:39,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:30:39,109 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-09-25 06:30:39,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:30:39,135 INFO L225 Difference]: With dead ends: 447 [2020-09-25 06:30:39,136 INFO L226 Difference]: Without dead ends: 288 [2020-09-25 06:30:39,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:30:39,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-09-25 06:30:39,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 244. [2020-09-25 06:30:39,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-09-25 06:30:39,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 264 transitions. [2020-09-25 06:30:39,248 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 264 transitions. Word has length 160 [2020-09-25 06:30:39,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:30:39,250 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 264 transitions. [2020-09-25 06:30:39,250 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:30:39,250 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 264 transitions. [2020-09-25 06:30:39,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 06:30:39,255 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:30:39,256 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:30:39,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:30:39,256 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:30:39,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:30:39,257 INFO L82 PathProgramCache]: Analyzing trace with hash 190378574, now seen corresponding path program 1 times [2020-09-25 06:30:39,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:30:39,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [940343555] [2020-09-25 06:30:39,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:30:39,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:39,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:39,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:40,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:41,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:42,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:44,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:44,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 06:30:44,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:30:44,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 06:30:44,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:44,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:44,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:30:44,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 06:30:44,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:30:44,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:44,645 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:30:44,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:30:44,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:44,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:44,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:44,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:30:44,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:44,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 06:30:44,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:44,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:44,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:44,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:44,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:44,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:44,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:30:44,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:44,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:44,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:44,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:30:44,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:44,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:30:44,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:44,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:44,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:44,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:44,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:44,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:44,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:30:44,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:44,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:44,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:44,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:30:44,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:44,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:30:44,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:44,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:44,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:44,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:44,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:44,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:44,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:30:44,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:44,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:44,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:44,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:30:44,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:44,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:30:44,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:44,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:44,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:44,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:44,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:44,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:44,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:30:44,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:44,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:44,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:44,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:30:44,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:44,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:30:44,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:44,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:44,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:44,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:44,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:44,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:44,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:30:44,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:44,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:44,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:44,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:30:44,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:44,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:30:44,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:44,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:44,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:44,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:44,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:44,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:44,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 06:30:44,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:44,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:44,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:44,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:30:44,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:44,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:30:44,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:44,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:44,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:44,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-09-25 06:30:44,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:44,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:44,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:30:44,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:44,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:44,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:44,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:30:44,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:44,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:30:44,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:44,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:44,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:44,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:44,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:44,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:44,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 06:30:44,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:44,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:44,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:44,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:30:44,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:44,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:30:44,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:44,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:44,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:44,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:30:44,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:44,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:44,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 06:30:44,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:44,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:44,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:44,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:30:44,864 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:44,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:30:44,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:44,865 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:44,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:44,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:30:44,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:44,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:44,903 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 06:30:44,904 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [940343555] [2020-09-25 06:30:44,904 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:30:44,905 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:30:44,905 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638756705] [2020-09-25 06:30:44,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:30:44,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:30:44,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:30:44,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:30:44,909 INFO L87 Difference]: Start difference. First operand 244 states and 264 transitions. Second operand 5 states. [2020-09-25 06:30:45,523 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:30:46,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:30:46,352 INFO L93 Difference]: Finished difference Result 372 states and 418 transitions. [2020-09-25 06:30:46,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:30:46,353 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 06:30:46,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:30:46,357 INFO L225 Difference]: With dead ends: 372 [2020-09-25 06:30:46,357 INFO L226 Difference]: Without dead ends: 277 [2020-09-25 06:30:46,359 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:30:46,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-09-25 06:30:46,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 234. [2020-09-25 06:30:46,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-09-25 06:30:46,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 251 transitions. [2020-09-25 06:30:46,403 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 251 transitions. Word has length 161 [2020-09-25 06:30:46,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:30:46,403 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 251 transitions. [2020-09-25 06:30:46,403 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:30:46,404 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 251 transitions. [2020-09-25 06:30:46,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-09-25 06:30:46,406 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:30:46,407 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:30:46,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:30:46,407 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:30:46,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:30:46,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1441293719, now seen corresponding path program 1 times [2020-09-25 06:30:46,408 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:30:46,408 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1482924532] [2020-09-25 06:30:46,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:30:46,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:46,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:46,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:46,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:48,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:51,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:51,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-09-25 06:30:51,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:30:51,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 06:30:51,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:51,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:51,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:30:51,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 06:30:51,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 06:30:51,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:51,860 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:30:51,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:30:51,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:51,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:51,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:51,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:30:51,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:51,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 06:30:51,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:51,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:51,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:51,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:51,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:51,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:52,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:30:52,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:52,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:52,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:52,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:30:52,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:52,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:30:52,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:52,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:52,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:52,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:52,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:52,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:52,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:30:52,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:52,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:52,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:52,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:30:52,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:52,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:30:52,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:52,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:52,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:52,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:52,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:52,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:52,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:30:52,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:52,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:52,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:52,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:30:52,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:52,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:30:52,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:52,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:52,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:52,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:52,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:52,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:52,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:30:52,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:52,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:52,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:52,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:30:52,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:52,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:30:52,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:52,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:52,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:52,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:52,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:52,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:52,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:30:52,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:52,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:52,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:52,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:30:52,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:52,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:30:52,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:52,091 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:52,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:52,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:52,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:52,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:52,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:30:52,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:52,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:52,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:52,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:30:52,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:52,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:30:52,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:52,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:52,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:30:52,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:52,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:30:52,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:52,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 06:30:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:52,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:52,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:52,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:30:52,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:52,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:30:52,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:52,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:52,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:30:52,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:52,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 06:30:52,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:52,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:30:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:52,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:52,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:52,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:30:52,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:52,153 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 06:30:52,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:52,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:52,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:52,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:52,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:52,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:30:52,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 06:30:52,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:52,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:52,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:52,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:30:52,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:52,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:30:52,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:52,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:52,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:52,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:30:52,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:52,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:52,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-09-25 06:30:52,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:52,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:52,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:52,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:30:52,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:52,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:30:52,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:52,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:52,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:52,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:30:52,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:52,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:30:52,237 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 06:30:52,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1482924532] [2020-09-25 06:30:52,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:30:52,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 06:30:52,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670554717] [2020-09-25 06:30:52,243 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 06:30:52,243 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:30:52,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 06:30:52,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 06:30:52,246 INFO L87 Difference]: Start difference. First operand 234 states and 251 transitions. Second operand 6 states. [2020-09-25 06:30:53,025 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:30:54,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:30:54,047 INFO L93 Difference]: Finished difference Result 419 states and 483 transitions. [2020-09-25 06:30:54,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 06:30:54,047 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 174 [2020-09-25 06:30:54,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:30:54,055 INFO L225 Difference]: With dead ends: 419 [2020-09-25 06:30:54,055 INFO L226 Difference]: Without dead ends: 300 [2020-09-25 06:30:54,060 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:30:54,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2020-09-25 06:30:54,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 234. [2020-09-25 06:30:54,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-09-25 06:30:54,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 250 transitions. [2020-09-25 06:30:54,142 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 250 transitions. Word has length 174 [2020-09-25 06:30:54,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:30:54,145 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 250 transitions. [2020-09-25 06:30:54,145 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 06:30:54,145 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 250 transitions. [2020-09-25 06:30:54,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-09-25 06:30:54,152 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:30:54,153 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:30:54,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:30:54,153 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:30:54,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:30:54,154 INFO L82 PathProgramCache]: Analyzing trace with hash -2081588078, now seen corresponding path program 1 times [2020-09-25 06:30:54,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:30:54,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2144154396] [2020-09-25 06:30:54,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:30:54,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:54,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:54,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:55,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:56,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:56,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:57,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:59,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:59,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 223 [2020-09-25 06:30:59,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:30:59,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 06:30:59,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:59,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:59,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:30:59,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-09-25 06:30:59,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:30:59,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:30:59,564 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:30:59,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:30:59,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:59,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:59,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:59,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:30:59,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:59,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 06:30:59,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:59,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:59,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:59,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:59,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:59,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:59,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:30:59,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:59,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:59,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:59,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:30:59,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:59,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:30:59,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:59,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:59,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:59,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:59,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:59,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:59,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:30:59,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:59,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:59,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:59,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:30:59,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:59,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:30:59,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:59,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:59,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:59,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:59,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:59,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:59,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:30:59,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:59,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:59,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:59,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:30:59,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:59,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:30:59,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:59,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:59,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:59,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:59,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:59,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:59,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:30:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:59,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:59,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:59,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:30:59,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:59,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:30:59,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:59,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:59,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:59,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:59,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:59,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:59,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:30:59,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:59,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:59,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:59,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:30:59,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:59,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:30:59,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:59,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:59,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:59,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:59,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:59,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:59,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:30:59,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:59,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:59,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:59,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:30:59,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:59,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:30:59,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:59,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:59,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:59,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:59,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:59,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:59,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 06:30:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:59,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:59,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:59,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:30:59,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:59,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:30:59,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:59,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:59,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:59,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:59,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:59,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:59,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:30:59,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:59,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:59,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:59,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:30:59,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:59,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:30:59,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:59,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:59,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:59,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:59,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:59,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:59,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 06:30:59,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:59,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:59,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:59,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 06:30:59,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:59,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 06:30:59,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:59,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:59,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:30:59,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 06:30:59,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 06:30:59,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:59,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:30:59,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:59,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:59,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:59,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:30:59,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:59,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:30:59,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:59,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:59,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:30:59,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:30:59,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:30:59,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:59,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 06:30:59,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:59,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:59,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:59,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:30:59,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:59,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:30:59,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:59,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:59,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:59,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:30:59,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:59,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:59,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-25 06:30:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:30:59,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:30:59,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:30:59,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:30:59,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:30:59,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:30:59,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:30:59,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:30:59,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:30:59,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:30:59,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:30:59,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:30:59,925 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 06:30:59,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2144154396] [2020-09-25 06:30:59,926 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:30:59,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 06:30:59,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221318593] [2020-09-25 06:30:59,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 06:30:59,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:30:59,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 06:30:59,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-09-25 06:30:59,928 INFO L87 Difference]: Start difference. First operand 234 states and 250 transitions. Second operand 9 states. [2020-09-25 06:31:00,429 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:31:02,418 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:31:02,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:31:02,878 INFO L93 Difference]: Finished difference Result 599 states and 716 transitions. [2020-09-25 06:31:02,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-25 06:31:02,878 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 182 [2020-09-25 06:31:02,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:31:02,886 INFO L225 Difference]: With dead ends: 599 [2020-09-25 06:31:02,886 INFO L226 Difference]: Without dead ends: 480 [2020-09-25 06:31:02,892 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=159, Invalid=393, Unknown=0, NotChecked=0, Total=552 [2020-09-25 06:31:02,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-09-25 06:31:02,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 342. [2020-09-25 06:31:02,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 342 states. [2020-09-25 06:31:02,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 371 transitions. [2020-09-25 06:31:02,974 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 371 transitions. Word has length 182 [2020-09-25 06:31:02,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:31:02,975 INFO L479 AbstractCegarLoop]: Abstraction has 342 states and 371 transitions. [2020-09-25 06:31:02,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 06:31:02,975 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 371 transitions. [2020-09-25 06:31:02,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-09-25 06:31:02,978 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:31:02,979 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:31:02,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:31:02,979 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:31:02,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:31:02,980 INFO L82 PathProgramCache]: Analyzing trace with hash -489086187, now seen corresponding path program 1 times [2020-09-25 06:31:02,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:31:02,981 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2016661327] [2020-09-25 06:31:02,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:31:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:03,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:03,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:03,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:06,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:08,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:08,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-09-25 06:31:08,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:31:08,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 06:31:08,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:08,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:08,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:31:08,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-09-25 06:31:08,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 06:31:08,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:08,377 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:31:08,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:31:08,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:08,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:08,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:08,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:31:08,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:08,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-09-25 06:31:08,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:08,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:08,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:08,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:08,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:08,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:08,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:31:08,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:08,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:08,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:08,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:31:08,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:08,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:31:08,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:08,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:08,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:08,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:08,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:08,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:08,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:31:08,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:08,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:08,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:08,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:31:08,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:08,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:31:08,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:08,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:08,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:08,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:08,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:08,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:08,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:31:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:08,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:08,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:08,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:31:08,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:08,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:31:08,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:08,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:08,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:08,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:08,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:08,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:08,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:31:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:08,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:08,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:08,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:31:08,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:08,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:31:08,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:08,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:08,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:08,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:08,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:08,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:08,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:31:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:08,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:08,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:08,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:31:08,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:08,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:31:08,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:08,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:08,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:08,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:08,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:08,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:08,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:31:08,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:08,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:08,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:08,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:31:08,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:08,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:31:08,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:08,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:08,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:08,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:08,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:08,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:08,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 06:31:08,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:08,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:08,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:08,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:31:08,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:08,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:31:08,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:08,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:08,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:08,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:08,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:08,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:08,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:31:08,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:08,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:08,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:08,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:31:08,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:08,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:31:08,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:08,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:08,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:08,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:08,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:08,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:08,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 06:31:08,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:08,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:08,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:08,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:08,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 06:31:08,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:31:08,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 06:31:08,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:08,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:08,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:31:08,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:08,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:31:08,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:08,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:31:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:08,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:08,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:08,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:31:08,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:08,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 06:31:08,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:08,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:08,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:31:08,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:08,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 06:31:08,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:08,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:31:08,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:08,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:08,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:08,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:31:08,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:08,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:31:08,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:08,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:08,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:08,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:08,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:08,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:08,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 06:31:08,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:08,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:08,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:08,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:31:08,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:08,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:31:08,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:08,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:08,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:31:08,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:08,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:31:08,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:08,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-09-25 06:31:08,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:08,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:08,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:08,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:31:08,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:08,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:31:08,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:08,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:08,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:31:08,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:08,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:31:08,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:08,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2020-09-25 06:31:08,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:08,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:08,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:08,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:31:08,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:08,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:31:08,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:08,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:08,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:31:08,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:08,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:31:08,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:08,733 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 06:31:08,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2016661327] [2020-09-25 06:31:08,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:31:08,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 06:31:08,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864370959] [2020-09-25 06:31:08,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 06:31:08,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:31:08,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 06:31:08,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:31:08,735 INFO L87 Difference]: Start difference. First operand 342 states and 371 transitions. Second operand 11 states. [2020-09-25 06:31:09,350 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:31:10,376 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:31:10,684 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:31:11,627 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:31:12,008 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:31:12,399 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:31:13,063 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:31:13,382 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:31:13,694 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:31:14,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:31:14,164 INFO L93 Difference]: Finished difference Result 706 states and 833 transitions. [2020-09-25 06:31:14,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-09-25 06:31:14,164 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 206 [2020-09-25 06:31:14,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:31:14,168 INFO L225 Difference]: With dead ends: 706 [2020-09-25 06:31:14,168 INFO L226 Difference]: Without dead ends: 479 [2020-09-25 06:31:14,170 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=261, Invalid=669, Unknown=0, NotChecked=0, Total=930 [2020-09-25 06:31:14,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2020-09-25 06:31:14,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 341. [2020-09-25 06:31:14,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 341 states. [2020-09-25 06:31:14,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 368 transitions. [2020-09-25 06:31:14,218 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 368 transitions. Word has length 206 [2020-09-25 06:31:14,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:31:14,218 INFO L479 AbstractCegarLoop]: Abstraction has 341 states and 368 transitions. [2020-09-25 06:31:14,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 06:31:14,219 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 368 transitions. [2020-09-25 06:31:14,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-09-25 06:31:14,222 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:31:14,222 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:31:14,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:31:14,222 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:31:14,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:31:14,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1682980522, now seen corresponding path program 1 times [2020-09-25 06:31:14,223 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:31:14,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [115075335] [2020-09-25 06:31:14,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:31:14,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:14,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:15,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:15,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 252 [2020-09-25 06:31:15,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:15,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 799 [2020-09-25 06:31:15,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:15,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:15,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:31:15,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 201 [2020-09-25 06:31:15,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:31:15,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:15,387 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:31:15,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:31:15,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:15,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:15,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:15,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:31:15,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:15,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 06:31:15,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:15,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:15,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:15,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:15,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:15,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:15,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:31:15,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:15,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:15,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:15,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:31:15,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:15,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:31:15,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:15,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:15,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:15,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:15,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:15,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:15,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:31:15,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:15,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:15,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:15,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:31:15,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:15,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:31:15,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:15,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:15,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:15,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:15,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:15,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:15,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:31:15,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:15,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:15,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:15,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:31:15,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:15,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:31:15,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:15,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:15,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:15,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:15,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:15,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:15,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:31:15,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:15,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:15,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:15,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:31:15,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:15,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:31:15,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:15,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:15,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:15,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:15,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:15,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:15,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:31:15,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:15,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:15,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:15,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:31:15,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:15,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:31:15,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:15,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:15,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:15,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:15,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:15,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:15,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:31:15,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:15,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:15,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:15,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:31:15,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:15,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:31:15,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:15,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:15,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:15,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:15,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:15,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:15,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 06:31:15,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:15,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:15,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:15,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-09-25 06:31:15,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:15,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:31:15,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:15,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:15,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:15,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:15,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:15,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:15,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:31:15,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:15,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:15,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:15,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:31:15,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:15,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:31:15,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:15,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:15,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:15,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:15,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:15,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:15,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 06:31:15,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:15,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:15,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:15,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-25 06:31:15,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:15,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 06:31:15,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:15,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:15,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:31:15,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-09-25 06:31:15,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 06:31:15,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:15,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:31:15,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:15,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:15,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:15,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-09-25 06:31:15,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:15,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 06:31:15,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:15,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:15,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:31:15,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:15,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 06:31:15,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:15,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 06:31:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:15,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:15,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:15,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 06:31:15,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:15,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:31:15,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:15,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:15,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:15,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:31:15,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:15,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:31:15,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-25 06:31:15,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:15,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:15,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:15,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:31:15,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:15,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:31:15,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:15,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:15,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:15,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-25 06:31:15,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:15,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:15,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-25 06:31:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:15,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:15,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:15,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:31:15,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:15,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:31:15,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:15,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:15,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:15,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:31:15,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:15,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:15,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-25 06:31:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:31:15,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:31:15,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:31:15,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:31:15,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:31:15,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:31:15,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:31:15,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:31:15,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:31:15,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:31:15,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:31:15,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:31:15,839 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 06:31:15,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [115075335] [2020-09-25 06:31:15,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:31:15,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 06:31:15,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846173593] [2020-09-25 06:31:15,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 06:31:15,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:31:15,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 06:31:15,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:31:15,842 INFO L87 Difference]: Start difference. First operand 341 states and 368 transitions. Second operand 11 states. [2020-09-25 06:31:17,356 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 06:31:17,679 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 06:31:18,015 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 197 [2020-09-25 06:31:18,335 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:31:18,657 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 06:31:18,978 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 190