/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_spec2_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:19:37,528 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:19:37,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:19:37,578 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:19:37,578 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:19:37,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:19:37,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:19:37,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:19:37,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:19:37,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:19:37,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:19:37,601 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:19:37,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:19:37,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:19:37,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:19:37,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:19:37,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:19:37,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:19:37,615 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:19:37,624 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:19:37,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:19:37,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:19:37,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:19:37,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:19:37,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:19:37,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:19:37,648 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:19:37,650 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:19:37,650 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:19:37,651 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:19:37,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:19:37,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:19:37,656 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:19:37,657 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:19:37,660 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:19:37,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:19:37,661 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:19:37,662 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:19:37,662 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:19:37,663 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:19:37,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:19:37,665 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 06:19:37,704 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:19:37,704 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:19:37,705 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:19:37,706 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:19:37,706 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:19:37,706 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:19:37,706 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:19:37,707 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:19:37,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:19:37,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:19:37,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:19:37,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:19:37,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:19:37,708 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:19:37,708 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:19:37,708 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:19:37,708 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:19:37,708 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:19:37,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:19:37,709 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:19:37,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:19:37,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:19:37,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:19:37,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:19:37,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:19:37,710 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:19:37,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:19:37,711 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:19:37,711 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:19:37,711 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 06:19:38,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:19:38,178 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:19:38,183 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:19:38,185 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:19:38,185 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:19:38,186 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product11.cil.c [2020-09-25 06:19:38,272 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e11c2afb5/0aff555af6394f12b25ddd3d1c482697/FLAG8e1443355 [2020-09-25 06:19:38,891 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:19:38,892 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product11.cil.c [2020-09-25 06:19:38,907 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e11c2afb5/0aff555af6394f12b25ddd3d1c482697/FLAG8e1443355 [2020-09-25 06:19:39,173 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e11c2afb5/0aff555af6394f12b25ddd3d1c482697 [2020-09-25 06:19:39,186 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:19:39,191 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:19:39,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:19:39,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:19:39,197 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:19:39,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:19:39" (1/1) ... [2020-09-25 06:19:39,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc9c326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:39, skipping insertion in model container [2020-09-25 06:19:39,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:19:39" (1/1) ... [2020-09-25 06:19:39,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:19:39,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:19:39,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:19:39,770 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:19:39,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:19:39,901 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:19:39,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:39 WrapperNode [2020-09-25 06:19:39,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:19:39,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:19:39,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:19:39,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:19:39,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:39" (1/1) ... [2020-09-25 06:19:39,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:39" (1/1) ... [2020-09-25 06:19:39,941 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:39" (1/1) ... [2020-09-25 06:19:39,942 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:39" (1/1) ... [2020-09-25 06:19:39,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:39" (1/1) ... [2020-09-25 06:19:39,985 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:39" (1/1) ... [2020-09-25 06:19:39,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:39" (1/1) ... [2020-09-25 06:19:39,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:19:39,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:19:39,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:19:39,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:19:40,001 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:39" (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 06:19:40,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:19:40,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:19:40,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:19:40,080 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:19:40,080 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:19:40,080 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:19:40,080 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:19:40,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:19:40,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:19:40,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:19:40,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:19:40,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:19:40,081 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:19:40,082 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:19:40,082 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:19:40,082 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-25 06:19:40,082 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:19:40,082 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:19:40,083 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:19:40,083 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:19:40,083 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:19:40,083 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 06:19:40,084 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:19:40,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:19:40,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 06:19:40,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 06:19:40,084 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:19:40,084 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:19:40,085 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:19:40,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:19:40,085 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:19:40,085 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:19:40,085 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:19:40,086 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:19:40,086 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:19:40,086 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:19:40,086 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:19:40,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:19:40,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:19:40,086 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:19:40,086 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:19:40,087 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:19:40,087 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:19:40,087 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:19:40,087 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:19:40,087 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:19:40,087 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:19:40,088 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:19:40,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:19:40,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:19:40,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:19:40,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:19:40,089 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:19:40,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:19:40,094 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:19:40,094 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:19:40,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:19:40,094 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:19:40,095 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:19:40,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:19:40,095 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:19:40,095 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:19:40,095 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:19:40,095 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:19:40,096 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:19:40,097 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:19:40,097 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:19:40,097 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:19:40,098 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:19:40,098 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 06:19:40,098 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 06:19:40,098 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:19:40,098 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-25 06:19:40,098 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:19:40,098 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:19:40,099 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:19:40,099 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:19:40,099 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:19:40,099 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:19:40,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 06:19:40,099 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:19:40,099 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:19:40,100 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:19:40,100 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:19:40,100 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:19:40,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:19:40,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:19:40,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:19:41,273 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:19:41,273 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:19:41,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:19:41 BoogieIcfgContainer [2020-09-25 06:19:41,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:19:41,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:19:41,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:19:41,286 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:19:41,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:19:39" (1/3) ... [2020-09-25 06:19:41,287 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d567442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:19:41, skipping insertion in model container [2020-09-25 06:19:41,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:19:39" (2/3) ... [2020-09-25 06:19:41,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d567442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:19:41, skipping insertion in model container [2020-09-25 06:19:41,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:19:41" (3/3) ... [2020-09-25 06:19:41,291 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product11.cil.c [2020-09-25 06:19:41,303 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:19:41,316 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:19:41,341 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:19:41,378 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:19:41,378 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:19:41,379 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:19:41,379 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:19:41,379 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:19:41,379 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:19:41,379 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:19:41,379 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:19:41,410 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states. [2020-09-25 06:19:41,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 06:19:41,429 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:19:41,430 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:19:41,431 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:19:41,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:19:41,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1802056066, now seen corresponding path program 1 times [2020-09-25 06:19:41,453 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:19:41,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1016590839] [2020-09-25 06:19:41,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:19:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:41,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:42,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:43,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:44,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:45,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:46,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:46,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 06:19:46,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:19:46,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-09-25 06:19:46,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:46,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:46,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:46,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 06:19:46,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:46,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 06:19:47,481 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:19:47,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:19:47,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:47,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:47,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:47,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:19:47,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:47,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 06:19:47,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:47,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:47,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:47,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:47,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:47,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:47,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:19:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:47,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:47,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:47,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:47,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:47,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:47,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:47,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:47,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:47,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:47,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:47,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:47,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:19:47,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:47,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:47,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:47,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:47,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:47,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:47,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:47,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:47,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:47,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:47,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:47,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:47,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:19:47,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:47,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:47,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:47,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:47,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:47,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:19:47,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:47,740 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:47,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:47,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:47,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:47,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:47,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:19:47,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:47,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:47,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:47,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:47,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:47,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:47,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:47,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:47,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:47,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:47,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:47,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:47,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:19:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:47,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:47,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:47,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:19:47,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:47,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:47,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:47,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:47,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:47,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:47,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:47,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:47,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 06:19:47,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:47,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:47,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:47,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:47,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:47,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:19:47,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:47,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:47,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:47,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:47,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:47,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:47,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 06:19:47,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:47,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:47,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:47,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:47,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:47,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:47,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:47,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:47,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:47,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:47,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:47,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:47,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:19:47,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1016590839] [2020-09-25 06:19:47,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:19:47,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:19:47,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775156450] [2020-09-25 06:19:47,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:19:47,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:19:47,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:19:47,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:19:47,852 INFO L87 Difference]: Start difference. First operand 275 states. Second operand 4 states. [2020-09-25 06:19:49,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:19:49,041 INFO L93 Difference]: Finished difference Result 377 states and 450 transitions. [2020-09-25 06:19:49,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 06:19:49,043 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 06:19:49,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:19:49,064 INFO L225 Difference]: With dead ends: 377 [2020-09-25 06:19:49,064 INFO L226 Difference]: Without dead ends: 254 [2020-09-25 06:19:49,070 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:19:49,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-09-25 06:19:49,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 208. [2020-09-25 06:19:49,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2020-09-25 06:19:49,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 223 transitions. [2020-09-25 06:19:49,173 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 223 transitions. Word has length 148 [2020-09-25 06:19:49,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:19:49,174 INFO L479 AbstractCegarLoop]: Abstraction has 208 states and 223 transitions. [2020-09-25 06:19:49,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:19:49,174 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 223 transitions. [2020-09-25 06:19:49,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 06:19:49,180 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:19:49,180 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:19:49,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:19:49,181 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:19:49,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:19:49,181 INFO L82 PathProgramCache]: Analyzing trace with hash 733508220, now seen corresponding path program 1 times [2020-09-25 06:19:49,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:19:49,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1833903335] [2020-09-25 06:19:49,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:19:49,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:49,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:49,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:51,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:52,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:52,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:53,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:54,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:54,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 06:19:54,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 06:19:54,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 06:19:54,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:54,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:54,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:19:54,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 06:19:54,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:19:54,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:54,574 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:19:54,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:19:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:54,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:54,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:54,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:19:54,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:54,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 06:19:54,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:54,704 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:54,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:54,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:54,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:54,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:54,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:19:54,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:54,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:54,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:54,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:54,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:54,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:54,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:54,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:54,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:54,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:54,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:54,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:54,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:19:54,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:54,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:54,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:54,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:54,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:54,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:19:54,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:54,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:54,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:54,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:54,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:54,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:54,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:19:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:54,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:54,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:54,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:54,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:54,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:19:54,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:54,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:54,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:54,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:54,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:19:54,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:54,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:54,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:54,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:19:54,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:54,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:19:54,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:54,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:54,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:54,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:54,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:54,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:54,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:19:54,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:54,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:54,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:54,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:19:54,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:54,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:54,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:54,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:54,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:54,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:19:54,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:54,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:54,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 06:19:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:54,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:54,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:54,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:54,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:54,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:54,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:54,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:54,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:54,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:54,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:54,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:19:54,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 06:19:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:54,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:54,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:19:54,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:19:54,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:19:54,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:19:54,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:19:54,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:19:54,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:19:54,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:19:54,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:19:54,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:19:54,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:19:54,845 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1833903335] [2020-09-25 06:19:54,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:19:54,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:19:54,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068581270] [2020-09-25 06:19:54,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:19:54,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:19:54,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:19:54,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:19:54,852 INFO L87 Difference]: Start difference. First operand 208 states and 223 transitions. Second operand 5 states. [2020-09-25 06:19:55,606 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:19:56,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:19:56,376 INFO L93 Difference]: Finished difference Result 297 states and 335 transitions. [2020-09-25 06:19:56,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:19:56,377 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 06:19:56,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:19:56,381 INFO L225 Difference]: With dead ends: 297 [2020-09-25 06:19:56,381 INFO L226 Difference]: Without dead ends: 243 [2020-09-25 06:19:56,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:19:56,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-09-25 06:19:56,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 198. [2020-09-25 06:19:56,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-09-25 06:19:56,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 210 transitions. [2020-09-25 06:19:56,420 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 210 transitions. Word has length 149 [2020-09-25 06:19:56,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:19:56,421 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 210 transitions. [2020-09-25 06:19:56,421 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:19:56,421 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 210 transitions. [2020-09-25 06:19:56,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 06:19:56,424 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:19:56,424 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:19:56,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:19:56,424 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:19:56,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:19:56,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1528792447, now seen corresponding path program 1 times [2020-09-25 06:19:56,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:19:56,425 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [826344959] [2020-09-25 06:19:56,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:19:56,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:19:56,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:57,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:57,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:58,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:19:59,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:01,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:01,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-25 06:20:01,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 06:20:01,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 06:20:01,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:01,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:01,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:20:01,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 06:20:01,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 06:20:01,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:01,847 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:20:01,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:20:01,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:01,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:02,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:02,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:20:02,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:02,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-09-25 06:20:02,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:02,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:02,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:20:02,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:02,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 06:20:02,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:02,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:20:02,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:02,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:02,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:02,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:02,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:02,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:20:02,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:02,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:02,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:20:02,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:02,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:20:02,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:02,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:20:02,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:02,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:02,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:02,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:02,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:02,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:20:02,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:02,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:02,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:20:02,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:02,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:20:02,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:02,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:20:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:02,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:02,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:02,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:02,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:02,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:20:02,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:02,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:02,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:20:02,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:02,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:20:02,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:02,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:20:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:02,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:02,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:02,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:02,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:02,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:20:02,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:02,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:02,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:20:02,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:02,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:20:02,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:02,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:20:02,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:02,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:02,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:02,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:20:02,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:02,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:20:02,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:02,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:02,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:20:02,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:02,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 06:20:02,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:20:02,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 06:20:02,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:02,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:02,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:02,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:02,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:02,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 06:20:02,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:02,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:02,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:02,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:20:02,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:02,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:02,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 06:20:02,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:02,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:02,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:02,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:02,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:02,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:02,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:02,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:02,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:02,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:20:02,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:02,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:20:02,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:20:02,305 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [826344959] [2020-09-25 06:20:02,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:20:02,306 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:20:02,306 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526542857] [2020-09-25 06:20:02,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:20:02,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:20:02,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:20:02,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:20:02,312 INFO L87 Difference]: Start difference. First operand 198 states and 210 transitions. Second operand 5 states. [2020-09-25 06:20:02,824 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:20:04,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:20:04,171 INFO L93 Difference]: Finished difference Result 416 states and 478 transitions. [2020-09-25 06:20:04,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:20:04,172 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 158 [2020-09-25 06:20:04,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:20:04,179 INFO L225 Difference]: With dead ends: 416 [2020-09-25 06:20:04,179 INFO L226 Difference]: Without dead ends: 333 [2020-09-25 06:20:04,185 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:20:04,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2020-09-25 06:20:04,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 269. [2020-09-25 06:20:04,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 269 states. [2020-09-25 06:20:04,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 292 transitions. [2020-09-25 06:20:04,255 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 292 transitions. Word has length 158 [2020-09-25 06:20:04,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:20:04,255 INFO L479 AbstractCegarLoop]: Abstraction has 269 states and 292 transitions. [2020-09-25 06:20:04,255 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:20:04,256 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 292 transitions. [2020-09-25 06:20:04,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 06:20:04,258 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:20:04,258 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:20:04,259 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:20:04,259 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:20:04,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:20:04,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1048245850, now seen corresponding path program 1 times [2020-09-25 06:20:04,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:20:04,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934366859] [2020-09-25 06:20:04,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:20:04,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:04,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:05,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:05,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:09,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:09,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 06:20:09,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:20:09,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-09-25 06:20:09,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:09,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:09,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 06:20:09,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 06:20:09,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 06:20:09,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:09,639 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:20:09,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:20:09,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:09,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:09,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:09,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:20:09,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:09,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 06:20:09,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:09,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:09,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:09,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:09,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:09,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:09,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:20:09,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:09,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:09,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:09,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:09,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:09,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:20:09,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:09,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:09,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:09,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:09,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:09,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:20:09,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:20:09,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:09,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:09,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:09,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:09,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:09,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 06:20:09,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:09,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:09,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:09,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:09,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:09,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:20:09,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:20:09,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:09,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:09,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:09,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:09,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:09,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:20:09,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:09,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:09,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:09,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:09,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:09,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 06:20:09,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:20:09,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:09,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:09,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:09,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:09,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:09,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:09,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:09,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:09,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:09,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:09,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:09,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:09,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:20:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:09,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:09,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:09,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:20:09,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:09,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:20:09,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:09,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:09,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:20:09,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:09,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:20:09,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:09,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 06:20:09,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:09,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:09,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:09,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:09,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:09,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:20:09,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:09,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:09,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:20:09,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:09,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:20:09,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:09,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 06:20:09,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:09,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:09,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:09,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:09,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:09,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:20:09,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:09,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:09,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:20:09,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:09,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:20:09,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:09,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-25 06:20:09,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:09,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:09,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:09,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:09,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:09,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:20:09,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:09,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:09,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:20:09,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:09,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:20:09,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:09,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 06:20:09,918 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934366859] [2020-09-25 06:20:09,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:20:09,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:20:09,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233001861] [2020-09-25 06:20:09,921 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:20:09,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:20:09,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:20:09,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:20:09,922 INFO L87 Difference]: Start difference. First operand 269 states and 292 transitions. Second operand 5 states. [2020-09-25 06:20:10,615 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 06:20:11,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:20:11,877 INFO L93 Difference]: Finished difference Result 528 states and 624 transitions. [2020-09-25 06:20:11,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:20:11,877 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-09-25 06:20:11,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:20:11,883 INFO L225 Difference]: With dead ends: 528 [2020-09-25 06:20:11,883 INFO L226 Difference]: Without dead ends: 525 [2020-09-25 06:20:11,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:20:11,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2020-09-25 06:20:11,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 426. [2020-09-25 06:20:11,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2020-09-25 06:20:11,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 475 transitions. [2020-09-25 06:20:11,949 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 475 transitions. Word has length 161 [2020-09-25 06:20:11,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:20:11,950 INFO L479 AbstractCegarLoop]: Abstraction has 426 states and 475 transitions. [2020-09-25 06:20:11,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:20:11,950 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 475 transitions. [2020-09-25 06:20:11,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-09-25 06:20:11,954 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:20:11,954 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:20:11,955 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:20:11,955 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:20:11,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:20:11,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1518459277, now seen corresponding path program 1 times [2020-09-25 06:20:11,956 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:20:11,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [24452314] [2020-09-25 06:20:11,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:20:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:12,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:12,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:13,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:14,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:17,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:17,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-09-25 06:20:17,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 06:20:17,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 06:20:17,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:17,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:17,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:20:17,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 06:20:17,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 06:20:17,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:17,334 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:20:17,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:20:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:17,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:17,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:17,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 06:20:17,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:17,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 06:20:17,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:17,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:17,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:17,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:17,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:17,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:17,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 06:20:17,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:17,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:17,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:17,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:17,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:17,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:17,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:17,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:17,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:17,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:17,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:17,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:17,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 06:20:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:17,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:17,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:17,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:17,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:17,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:20:17,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:17,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:17,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:17,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:17,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:17,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:17,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 06:20:17,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:17,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:17,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:17,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:17,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:17,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:20:17,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:17,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:17,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:17,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:17,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:17,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:17,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 06:20:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:17,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:17,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:17,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:17,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:17,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:17,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:17,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:17,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:17,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:17,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:17,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:17,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 06:20:17,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:17,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:17,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:17,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:20:17,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:17,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:17,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:17,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:17,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:17,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:17,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:17,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:17,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 06:20:17,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:17,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:17,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:17,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 06:20:17,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:17,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 06:20:17,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:17,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:17,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:20:17,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 06:20:17,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 06:20:17,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:20:17,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:20:17,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:17,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:17,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:17,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:17,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:17,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:20:17,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:17,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:17,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:20:17,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:17,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:20:17,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:20:17,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 06:20:17,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:17,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:17,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:17,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 06:20:17,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:17,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 06:20:17,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:17,820 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:17,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 06:20:17,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 06:20:17,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 06:20:17,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:17,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 06:20:17,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:17,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:17,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:17,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:17,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:17,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:17,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:17,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:17,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:17,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:17,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:17,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:20:17,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 06:20:17,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:17,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:17,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:17,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:17,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:17,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:20:17,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:17,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:17,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 06:20:17,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:20:17,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:20:17,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:20:17,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2020-09-25 06:20:17,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:17,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:17,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:17,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:20:17,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:17,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:17,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:17,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:17,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:17,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 06:20:17,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:17,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:17,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-25 06:20:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:18,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:18,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:18,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:18,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:18,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:18,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:18,004 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:18,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:18,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:20:18,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:18,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:20:18,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-09-25 06:20:18,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:20:18,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:20:18,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:20:18,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:20:18,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:20:18,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:20:18,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:20:18,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:20:18,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:20:18,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:20:18,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:20:18,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:20:18,158 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 32 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-25 06:20:18,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [24452314] [2020-09-25 06:20:18,159 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 06:20:18,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 06:20:18,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279714415] [2020-09-25 06:20:18,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 06:20:18,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:20:18,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 06:20:18,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-09-25 06:20:18,162 INFO L87 Difference]: Start difference. First operand 426 states and 475 transitions. Second operand 11 states. [2020-09-25 06:20:18,925 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:20:20,303 WARN L193 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 192 [2020-09-25 06:20:20,939 WARN L193 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 194 [2020-09-25 06:20:21,555 WARN L193 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 192 [2020-09-25 06:20:22,195 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 194 [2020-09-25 06:20:22,804 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 192 [2020-09-25 06:20:23,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:20:23,057 INFO L93 Difference]: Finished difference Result 616 states and 726 transitions. [2020-09-25 06:20:23,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 06:20:23,058 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 210 [2020-09-25 06:20:23,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:20:23,059 INFO L225 Difference]: With dead ends: 616 [2020-09-25 06:20:23,059 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 06:20:23,063 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2020-09-25 06:20:23,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 06:20:23,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 06:20:23,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 06:20:23,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 06:20:23,064 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 210 [2020-09-25 06:20:23,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:20:23,064 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 06:20:23,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 06:20:23,064 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 06:20:23,064 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 06:20:23,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:20:23,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 06:20:23,321 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:20:23,501 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:20:23,698 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:20:23,873 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 191