/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=0.4 --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_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:12:08,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:12:08,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:12:08,890 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:12:08,891 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:12:08,902 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:12:08,905 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:12:08,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:12:08,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:12:08,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:12:08,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:12:08,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:12:08,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:12:08,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:12:08,924 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:12:08,926 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:12:08,928 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:12:08,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:12:08,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:12:08,941 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:12:08,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:12:08,944 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:12:08,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:12:08,946 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:12:08,949 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:12:08,949 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:12:08,950 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:12:08,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:12:08,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:12:08,955 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:12:08,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:12:08,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:12:08,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:12:08,958 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:12:08,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:12:08,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:12:08,961 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:12:08,961 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:12:08,961 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:12:08,962 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:12:08,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:12:08,965 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 05:12:09,015 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:12:09,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:12:09,017 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:12:09,018 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:12:09,018 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:12:09,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:12:09,019 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:12:09,019 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:12:09,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:12:09,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:12:09,020 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:12:09,021 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:12:09,021 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:12:09,021 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:12:09,021 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:12:09,022 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:12:09,022 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:12:09,022 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:12:09,022 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:12:09,022 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:12:09,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:12:09,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:12:09,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:12:09,023 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:12:09,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:12:09,024 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:12:09,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:12:09,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:12:09,024 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:12:09,024 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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;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=0.4;log-additional-information=true; [2020-09-25 05:12:09,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:12:09,523 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:12:09,531 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:12:09,532 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:12:09,533 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:12:09,534 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product32.cil.c [2020-09-25 05:12:09,629 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4fe5b56fe/d5d400ff3fc5442a99a4e2fae4308494/FLAGd0936cf3e [2020-09-25 05:12:10,315 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:12:10,319 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product32.cil.c [2020-09-25 05:12:10,343 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4fe5b56fe/d5d400ff3fc5442a99a4e2fae4308494/FLAGd0936cf3e [2020-09-25 05:12:10,526 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4fe5b56fe/d5d400ff3fc5442a99a4e2fae4308494 [2020-09-25 05:12:10,543 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:12:10,550 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:12:10,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:12:10,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:12:10,560 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:12:10,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:12:10" (1/1) ... [2020-09-25 05:12:10,567 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78532141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:10, skipping insertion in model container [2020-09-25 05:12:10,567 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:12:10" (1/1) ... [2020-09-25 05:12:10,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:12:10,653 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:12:11,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:12:11,182 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:12:11,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:12:11,319 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:12:11,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:11 WrapperNode [2020-09-25 05:12:11,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:12:11,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:12:11,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:12:11,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:12:11,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:11" (1/1) ... [2020-09-25 05:12:11,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:11" (1/1) ... [2020-09-25 05:12:11,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:11" (1/1) ... [2020-09-25 05:12:11,362 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:11" (1/1) ... [2020-09-25 05:12:11,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:11" (1/1) ... [2020-09-25 05:12:11,409 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:11" (1/1) ... [2020-09-25 05:12:11,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:11" (1/1) ... [2020-09-25 05:12:11,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:12:11,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:12:11,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:12:11,426 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:12:11,427 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:11" (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 05:12:11,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:12:11,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:12:11,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 05:12:11,529 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 05:12:11,529 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 05:12:11,529 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 05:12:11,529 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 05:12:11,530 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 05:12:11,531 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 05:12:11,531 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 05:12:11,531 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 05:12:11,531 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 05:12:11,532 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 05:12:11,532 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 05:12:11,532 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 05:12:11,533 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 05:12:11,534 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 05:12:11,534 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 05:12:11,534 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 05:12:11,534 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 05:12:11,535 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 05:12:11,535 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 05:12:11,535 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:12:11,535 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 05:12:11,536 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 05:12:11,536 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 05:12:11,537 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 05:12:11,537 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 05:12:11,537 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 05:12:11,537 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 05:12:11,537 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 05:12:11,537 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 05:12:11,538 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 05:12:11,538 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 05:12:11,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 05:12:11,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 05:12:11,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 05:12:11,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 05:12:11,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 05:12:11,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 05:12:11,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 05:12:11,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 05:12:11,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:12:11,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:12:11,540 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:12:11,541 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 05:12:11,541 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 05:12:11,541 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 05:12:11,541 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 05:12:11,542 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 05:12:11,542 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 05:12:11,542 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 05:12:11,543 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 05:12:11,543 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 05:12:11,543 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 05:12:11,543 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 05:12:11,543 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 05:12:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 05:12:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 05:12:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 05:12:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 05:12:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 05:12:11,544 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 05:12:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 05:12:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 05:12:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 05:12:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 05:12:11,545 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-09-25 05:12:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:12:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 05:12:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 05:12:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 05:12:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 05:12:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 05:12:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 05:12:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 05:12:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:12:11,549 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 05:12:11,550 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 05:12:11,550 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 05:12:11,550 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:12:11,550 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:12:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 05:12:11,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:12:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:12:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:12:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:12:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 05:12:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:12:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 05:12:11,552 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 05:12:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:12:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 05:12:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 05:12:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 05:12:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:12:11,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:12:11,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:12:12,844 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:12:12,844 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 05:12:12,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:12:12 BoogieIcfgContainer [2020-09-25 05:12:12,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:12:12,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:12:12,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:12:12,857 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:12:12,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:12:10" (1/3) ... [2020-09-25 05:12:12,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b29b11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:12:12, skipping insertion in model container [2020-09-25 05:12:12,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:12:11" (2/3) ... [2020-09-25 05:12:12,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b29b11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:12:12, skipping insertion in model container [2020-09-25 05:12:12,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:12:12" (3/3) ... [2020-09-25 05:12:12,862 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product32.cil.c [2020-09-25 05:12:12,874 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:12:12,885 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:12:12,908 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:12:12,941 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:12:12,941 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:12:12,941 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:12:12,941 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:12:12,942 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:12:12,942 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:12:12,942 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:12:12,942 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:12:12,973 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states. [2020-09-25 05:12:12,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 05:12:12,992 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:12:12,993 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 05:12:12,994 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:12:13,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:12:13,002 INFO L82 PathProgramCache]: Analyzing trace with hash -2025840680, now seen corresponding path program 1 times [2020-09-25 05:12:13,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:12:13,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [426563179] [2020-09-25 05:12:13,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:12:13,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:13,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:13,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:15,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:16,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:17,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:18,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:18,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:18,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 05:12:18,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:12:18,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5154 [2020-09-25 05:12:18,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:18,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:18,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:18,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 05:12:18,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:18,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 05:12:19,006 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:12:19,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:12:19,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:19,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:19,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:19,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:12:19,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:19,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-25 05:12:19,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:19,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:19,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:19,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:19,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:19,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:19,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:12:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:19,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:19,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:19,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:19,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:19,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:19,266 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:19,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:19,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:19,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:19,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:19,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:19,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:12:19,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:19,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:19,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:19,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:19,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:19,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:19,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:19,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:19,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:19,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:19,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:19,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:19,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:12:19,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:19,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:19,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:19,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:19,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:19,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:12:19,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:19,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:19,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:19,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:19,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:19,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:19,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:12:19,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:19,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:19,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:19,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:19,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:19,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:19,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:19,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:19,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:19,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:19,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:19,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:19,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:12:19,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:19,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:19,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:19,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:12:19,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:19,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:12:19,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:19,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:19,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:19,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:19,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:19,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:19,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 05:12:19,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:19,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:19,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:19,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:19,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:19,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:12:19,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:19,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:19,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:19,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:19,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:19,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:19,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 05:12:19,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:19,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:19,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:19,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:19,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:19,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:12:19,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:19,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:19,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:19,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:19,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:19,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:19,384 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 05:12:19,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [426563179] [2020-09-25 05:12:19,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:12:19,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:12:19,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562955370] [2020-09-25 05:12:19,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:12:19,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:12:19,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:12:19,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:12:19,422 INFO L87 Difference]: Start difference. First operand 324 states. Second operand 4 states. [2020-09-25 05:12:21,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:12:21,297 INFO L93 Difference]: Finished difference Result 493 states and 590 transitions. [2020-09-25 05:12:21,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:12:21,300 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 05:12:21,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:12:21,335 INFO L225 Difference]: With dead ends: 493 [2020-09-25 05:12:21,336 INFO L226 Difference]: Without dead ends: 315 [2020-09-25 05:12:21,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:12:21,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-09-25 05:12:21,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 263. [2020-09-25 05:12:21,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-09-25 05:12:21,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 288 transitions. [2020-09-25 05:12:21,471 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 288 transitions. Word has length 148 [2020-09-25 05:12:21,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:12:21,472 INFO L479 AbstractCegarLoop]: Abstraction has 263 states and 288 transitions. [2020-09-25 05:12:21,472 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:12:21,472 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 288 transitions. [2020-09-25 05:12:21,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 05:12:21,477 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:12:21,477 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 05:12:21,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:12:21,478 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:12:21,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:12:21,479 INFO L82 PathProgramCache]: Analyzing trace with hash -435050295, now seen corresponding path program 1 times [2020-09-25 05:12:21,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:12:21,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1424334871] [2020-09-25 05:12:21,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:12:21,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:21,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:21,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:23,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:24,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:25,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:26,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:26,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:26,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 05:12:26,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:12:26,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-09-25 05:12:26,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:26,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:26,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:26,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 05:12:26,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:12:26,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:26,934 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:12:26,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:12:26,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:26,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:27,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:27,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:12:27,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:27,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 05:12:27,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:27,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:27,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:27,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:27,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:27,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:27,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:12:27,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:27,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:27,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:27,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:27,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:27,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:27,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:27,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:27,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:27,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:27,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:27,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:27,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:12:27,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:27,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:27,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:27,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:27,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:27,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:27,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:27,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:27,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:27,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:27,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:27,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:27,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:12:27,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:27,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:27,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:27,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:27,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:27,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:12:27,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:27,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:27,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:27,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:27,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:27,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:27,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:12:27,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:27,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:27,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:27,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:27,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:27,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:27,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:27,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:27,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:27,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:27,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:27,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:27,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:12:27,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:27,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:27,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:27,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:12:27,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:27,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:27,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:27,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:27,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:27,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:27,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:27,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 05:12:27,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 05:12:27,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:27,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:27,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:27,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:27,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:27,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:12:27,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:27,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:27,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:27,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:27,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:27,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:27,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 05:12:27,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:27,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:27,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:27,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:27,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:27,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:27,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:27,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:27,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:27,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:27,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:27,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:27,173 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 05:12:27,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1424334871] [2020-09-25 05:12:27,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:12:27,175 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:12:27,175 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694918123] [2020-09-25 05:12:27,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:12:27,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:12:27,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:12:27,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:12:27,180 INFO L87 Difference]: Start difference. First operand 263 states and 288 transitions. Second operand 5 states. [2020-09-25 05:12:27,831 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:12:29,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:12:29,090 INFO L93 Difference]: Finished difference Result 412 states and 473 transitions. [2020-09-25 05:12:29,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:12:29,090 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 05:12:29,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:12:29,096 INFO L225 Difference]: With dead ends: 412 [2020-09-25 05:12:29,097 INFO L226 Difference]: Without dead ends: 304 [2020-09-25 05:12:29,098 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 05:12:29,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-09-25 05:12:29,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 253. [2020-09-25 05:12:29,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-09-25 05:12:29,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 275 transitions. [2020-09-25 05:12:29,154 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 275 transitions. Word has length 149 [2020-09-25 05:12:29,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:12:29,155 INFO L479 AbstractCegarLoop]: Abstraction has 253 states and 275 transitions. [2020-09-25 05:12:29,155 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:12:29,155 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 275 transitions. [2020-09-25 05:12:29,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 05:12:29,158 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:12:29,158 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:12:29,159 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:12:29,159 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:12:29,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:12:29,159 INFO L82 PathProgramCache]: Analyzing trace with hash -917624863, now seen corresponding path program 1 times [2020-09-25 05:12:29,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:12:29,160 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [236638793] [2020-09-25 05:12:29,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:12:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:29,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:29,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:30,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:30,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:31,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:34,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:34,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 05:12:34,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:12:34,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 05:12:34,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:34,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:34,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:34,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 05:12:34,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 05:12:34,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:34,541 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:12:34,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:12:34,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:34,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:34,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:34,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:12:34,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:34,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 05:12:34,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:34,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:34,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:34,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:34,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:34,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:34,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:12:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:34,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:34,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:34,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:34,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:34,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:34,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:34,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:34,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:34,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:34,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:34,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:34,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:12:34,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:34,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:34,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:34,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:34,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:34,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:34,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:34,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:34,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:34,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:34,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:34,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:34,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:12:34,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:34,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:34,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:34,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:34,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:34,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:12:34,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:34,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:34,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:34,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:34,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:34,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:34,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:12:34,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:34,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:34,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:34,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:34,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:34,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:34,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:34,726 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:34,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:34,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:34,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:34,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:34,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:12:34,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:34,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:34,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:34,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:12:34,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:34,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:34,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:34,742 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:34,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:34,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:34,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:34,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:34,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 05:12:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:34,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:34,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:34,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:12:34,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:34,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:12:34,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:34,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:34,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:34,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:34,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:12:34,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:34,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 05:12:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:34,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:34,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:34,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:34,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:34,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:12:34,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:34,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:34,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:34,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:34,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:34,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:34,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 05:12:34,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:34,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:34,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:34,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:34,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:34,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:34,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:34,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:34,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:34,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:34,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:34,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:34,807 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 05:12:34,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [236638793] [2020-09-25 05:12:34,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:12:34,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:12:34,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299227830] [2020-09-25 05:12:34,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:12:34,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:12:34,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:12:34,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:12:34,812 INFO L87 Difference]: Start difference. First operand 253 states and 275 transitions. Second operand 6 states. [2020-09-25 05:12:35,413 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:12:37,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:12:37,582 INFO L93 Difference]: Finished difference Result 613 states and 725 transitions. [2020-09-25 05:12:37,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 05:12:37,583 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 05:12:37,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:12:37,589 INFO L225 Difference]: With dead ends: 613 [2020-09-25 05:12:37,589 INFO L226 Difference]: Without dead ends: 475 [2020-09-25 05:12:37,590 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:12:37,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 475 states. [2020-09-25 05:12:37,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 475 to 381. [2020-09-25 05:12:37,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 381 states. [2020-09-25 05:12:37,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 426 transitions. [2020-09-25 05:12:37,659 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 426 transitions. Word has length 162 [2020-09-25 05:12:37,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:12:37,660 INFO L479 AbstractCegarLoop]: Abstraction has 381 states and 426 transitions. [2020-09-25 05:12:37,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:12:37,660 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 426 transitions. [2020-09-25 05:12:37,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 05:12:37,662 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:12:37,663 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:12:37,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:12:37,663 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:12:37,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:12:37,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1871649820, now seen corresponding path program 1 times [2020-09-25 05:12:37,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:12:37,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1465410147] [2020-09-25 05:12:37,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:12:37,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:37,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:38,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:38,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:39,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:41,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:42,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:42,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 05:12:42,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:12:42,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-09-25 05:12:42,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:42,727 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:42,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:12:42,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 05:12:42,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 05:12:42,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:43,130 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:12:43,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:12:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:43,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:43,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:43,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:12:43,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:43,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-09-25 05:12:43,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:43,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:43,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:43,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:43,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:43,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:43,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:12:43,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:43,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:43,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:43,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:43,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:43,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:43,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:43,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:43,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:43,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:43,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:43,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:43,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:12:43,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:43,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:43,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:43,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:43,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:43,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:43,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:43,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:43,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:43,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:43,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:43,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:43,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:12:43,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:43,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:43,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:43,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:43,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:43,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:12:43,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:43,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:43,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:43,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:43,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:43,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:43,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:12:43,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:43,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:43,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:43,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:43,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:43,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:43,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:43,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:43,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:43,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:43,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:43,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:43,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:12:43,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:43,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:43,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:43,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:12:43,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:43,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:12:43,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:43,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:43,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:43,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:43,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:12:43,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:43,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 05:12:43,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:43,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:43,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:43,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:12:43,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:43,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:12:43,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:43,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:43,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:43,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:43,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:12:43,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:43,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 05:12:43,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:43,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:43,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:43,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:43,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:43,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:12:43,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:43,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:43,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:43,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:43,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:12:43,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:43,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 05:12:43,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:43,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:43,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:43,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:43,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:43,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:12:43,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:43,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:43,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:43,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:43,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:12:43,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:43,464 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 05:12:43,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1465410147] [2020-09-25 05:12:43,465 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:12:43,465 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:12:43,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756680849] [2020-09-25 05:12:43,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:12:43,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:12:43,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:12:43,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:12:43,468 INFO L87 Difference]: Start difference. First operand 381 states and 426 transitions. Second operand 6 states. [2020-09-25 05:12:44,188 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:12:46,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:12:46,799 INFO L93 Difference]: Finished difference Result 856 states and 1064 transitions. [2020-09-25 05:12:46,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 05:12:46,800 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-09-25 05:12:46,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:12:46,807 INFO L225 Difference]: With dead ends: 856 [2020-09-25 05:12:46,807 INFO L226 Difference]: Without dead ends: 853 [2020-09-25 05:12:46,808 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:12:46,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2020-09-25 05:12:46,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 650. [2020-09-25 05:12:46,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 650 states. [2020-09-25 05:12:46,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 743 transitions. [2020-09-25 05:12:46,924 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 743 transitions. Word has length 167 [2020-09-25 05:12:46,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:12:46,925 INFO L479 AbstractCegarLoop]: Abstraction has 650 states and 743 transitions. [2020-09-25 05:12:46,925 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:12:46,925 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 743 transitions. [2020-09-25 05:12:46,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-25 05:12:46,930 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:12:46,931 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:12:46,931 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:12:46,931 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:12:46,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:12:46,931 INFO L82 PathProgramCache]: Analyzing trace with hash 645088222, now seen corresponding path program 1 times [2020-09-25 05:12:46,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:12:46,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [705193962] [2020-09-25 05:12:46,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:12:46,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:47,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:47,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:47,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:47,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:50,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:51,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:51,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-09-25 05:12:51,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:12:51,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 05:12:51,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:51,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:51,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:12:51,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 05:12:51,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 05:12:51,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:52,283 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:12:52,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:12:52,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:52,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:52,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:52,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:12:52,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:52,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-09-25 05:12:52,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:52,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:52,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:52,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:52,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:52,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:52,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:12:52,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:52,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:52,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:52,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:52,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:52,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:52,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:52,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:52,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:52,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:52,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:52,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:52,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:12:52,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:52,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:52,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:52,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:52,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:52,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:52,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:52,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:52,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:52,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:52,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:52,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:52,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:12:52,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:52,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:52,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:52,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:52,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:52,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:12:52,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:52,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:52,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:52,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:52,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:52,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:52,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:12:52,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:52,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:52,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:52,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:12:52,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:52,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:52,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:52,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:52,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:52,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:52,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:52,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:52,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:12:52,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:52,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:52,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:52,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:12:52,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:52,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:52,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:52,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:52,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:52,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:52,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:52,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:52,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 05:12:52,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:52,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:52,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:52,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:12:52,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:52,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:12:52,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:52,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:52,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:12:52,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:52,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:12:52,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:52,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-25 05:12:52,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:52,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:52,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:52,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:52,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 05:12:52,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:12:52,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-09-25 05:12:52,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:52,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:52,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:12:52,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 05:12:52,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 05:12:52,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:52,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:12:52,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:52,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:52,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:52,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 05:12:52,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:52,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 05:12:52,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:52,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:52,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 05:12:52,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:52,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 05:12:52,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:52,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:12:52,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:52,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:52,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:52,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:52,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:52,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:52,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:52,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:52,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:52,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:52,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:52,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:52,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 05:12:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:52,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:52,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:52,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:52,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:52,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:12:52,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:52,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:52,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:12:52,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:12:52,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:12:52,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:52,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2020-09-25 05:12:52,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:52,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:52,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:52,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:52,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:52,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:12:52,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:52,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:52,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:52,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:52,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:52,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:12:52,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-09-25 05:12:52,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:12:52,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:12:52,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:12:52,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:12:52,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:12:52,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:12:52,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:12:52,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:12:52,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:12:52,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:12:52,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:12:52,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:12:52,897 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 35 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 05:12:52,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [705193962] [2020-09-25 05:12:52,898 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:12:52,898 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-25 05:12:52,898 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344876033] [2020-09-25 05:12:52,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-25 05:12:52,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:12:52,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-25 05:12:52,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-09-25 05:12:52,901 INFO L87 Difference]: Start difference. First operand 650 states and 743 transitions. Second operand 14 states. [2020-09-25 05:12:53,484 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:12:55,039 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:12:55,361 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:12:55,712 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:12:56,020 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:12:56,312 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:12:56,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:12:56,787 INFO L93 Difference]: Finished difference Result 894 states and 1081 transitions. [2020-09-25 05:12:56,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 05:12:56,788 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 217 [2020-09-25 05:12:56,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:12:56,789 INFO L225 Difference]: With dead ends: 894 [2020-09-25 05:12:56,789 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 05:12:56,796 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=214, Invalid=598, Unknown=0, NotChecked=0, Total=812 [2020-09-25 05:12:56,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 05:12:56,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 05:12:56,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 05:12:56,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 05:12:56,798 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 217 [2020-09-25 05:12:56,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:12:56,798 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 05:12:56,798 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-25 05:12:56,798 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 05:12:56,799 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 05:12:56,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:12:56,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 05:12:57,033 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:12:57,215 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 05:12:57,808 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 11 [2020-09-25 05:12:57,972 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 05:12:58,136 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 05:12:58,306 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:12:58,467 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 05:12:58,635 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190