/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.8 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 07:28:43,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 07:28:43,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 07:28:43,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 07:28:43,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 07:28:43,902 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 07:28:43,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 07:28:43,906 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 07:28:43,910 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 07:28:43,914 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 07:28:43,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 07:28:43,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 07:28:43,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 07:28:43,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 07:28:43,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 07:28:43,924 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 07:28:43,926 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 07:28:43,929 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 07:28:43,932 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 07:28:43,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 07:28:43,941 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 07:28:43,942 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 07:28:43,944 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 07:28:43,945 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 07:28:43,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 07:28:43,950 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 07:28:43,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 07:28:43,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 07:28:43,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 07:28:43,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 07:28:43,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 07:28:43,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 07:28:43,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 07:28:43,959 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 07:28:43,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 07:28:43,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 07:28:43,961 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 07:28:43,961 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 07:28:43,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 07:28:43,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 07:28:43,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 07:28:43,966 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 07:28:44,011 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 07:28:44,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 07:28:44,013 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 07:28:44,013 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 07:28:44,013 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 07:28:44,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 07:28:44,014 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 07:28:44,014 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 07:28:44,014 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 07:28:44,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 07:28:44,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 07:28:44,015 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 07:28:44,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 07:28:44,015 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 07:28:44,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 07:28:44,015 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 07:28:44,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 07:28:44,016 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 07:28:44,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 07:28:44,016 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 07:28:44,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 07:28:44,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:28:44,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 07:28:44,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 07:28:44,017 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 07:28:44,018 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 07:28:44,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 07:28:44,018 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 07:28:44,018 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 07:28:44,019 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.8;log-additional-information=true; [2020-09-25 07:28:44,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 07:28:44,480 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 07:28:44,487 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 07:28:44,489 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 07:28:44,489 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 07:28:44,491 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product12.cil.c [2020-09-25 07:28:44,571 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f7bda0945/4c12d4ffe39e4d0eae331260617d119f/FLAG2d13ec756 [2020-09-25 07:28:45,135 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 07:28:45,136 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product12.cil.c [2020-09-25 07:28:45,150 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f7bda0945/4c12d4ffe39e4d0eae331260617d119f/FLAG2d13ec756 [2020-09-25 07:28:45,422 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f7bda0945/4c12d4ffe39e4d0eae331260617d119f [2020-09-25 07:28:45,434 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 07:28:45,440 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 07:28:45,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 07:28:45,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 07:28:45,445 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 07:28:45,446 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:28:45" (1/1) ... [2020-09-25 07:28:45,451 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bc7108f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:45, skipping insertion in model container [2020-09-25 07:28:45,451 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 07:28:45" (1/1) ... [2020-09-25 07:28:45,460 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 07:28:45,515 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 07:28:46,077 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:28:46,091 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 07:28:46,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 07:28:46,204 INFO L208 MainTranslator]: Completed translation [2020-09-25 07:28:46,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:46 WrapperNode [2020-09-25 07:28:46,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 07:28:46,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 07:28:46,207 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 07:28:46,207 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 07:28:46,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:46" (1/1) ... [2020-09-25 07:28:46,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:46" (1/1) ... [2020-09-25 07:28:46,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:46" (1/1) ... [2020-09-25 07:28:46,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:46" (1/1) ... [2020-09-25 07:28:46,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:46" (1/1) ... [2020-09-25 07:28:46,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:46" (1/1) ... [2020-09-25 07:28:46,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:46" (1/1) ... [2020-09-25 07:28:46,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 07:28:46,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 07:28:46,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 07:28:46,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 07:28:46,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:46" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 07:28:46,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 07:28:46,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 07:28:46,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 07:28:46,404 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 07:28:46,405 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 07:28:46,405 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 07:28:46,405 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 07:28:46,406 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 07:28:46,406 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 07:28:46,406 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 07:28:46,407 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-25 07:28:46,407 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 07:28:46,407 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 07:28:46,407 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 07:28:46,407 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 07:28:46,408 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 07:28:46,409 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 07:28:46,409 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 07:28:46,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 07:28:46,409 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 07:28:46,410 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 07:28:46,410 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 07:28:46,410 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 07:28:46,410 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 07:28:46,411 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 07:28:46,411 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 07:28:46,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 07:28:46,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 07:28:46,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 07:28:46,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 07:28:46,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 07:28:46,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 07:28:46,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 07:28:46,412 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 07:28:46,413 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 07:28:46,413 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 07:28:46,413 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 07:28:46,413 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 07:28:46,413 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 07:28:46,415 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 07:28:46,415 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 07:28:46,415 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 07:28:46,416 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 07:28:46,416 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 07:28:46,416 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 07:28:46,416 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 07:28:46,416 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 07:28:46,416 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 07:28:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 07:28:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 07:28:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 07:28:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 07:28:46,417 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 07:28:46,418 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 07:28:46,418 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 07:28:46,418 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 07:28:46,418 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 07:28:46,418 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 07:28:46,419 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 07:28:46,419 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 07:28:46,419 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 07:28:46,419 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-25 07:28:46,419 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 07:28:46,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 07:28:46,420 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 07:28:46,420 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 07:28:46,420 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 07:28:46,420 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 07:28:46,420 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 07:28:46,421 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 07:28:46,421 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 07:28:46,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 07:28:46,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 07:28:46,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 07:28:46,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 07:28:46,424 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 07:28:46,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 07:28:46,424 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 07:28:46,424 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 07:28:46,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 07:28:46,424 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 07:28:46,425 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 07:28:46,425 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 07:28:46,426 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 07:28:46,426 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 07:28:46,426 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 07:28:46,426 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 07:28:46,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 07:28:46,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 07:28:46,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 07:28:47,683 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 07:28:47,683 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 07:28:47,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:28:47 BoogieIcfgContainer [2020-09-25 07:28:47,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 07:28:47,694 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 07:28:47,694 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 07:28:47,699 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 07:28:47,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 07:28:45" (1/3) ... [2020-09-25 07:28:47,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78837a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:28:47, skipping insertion in model container [2020-09-25 07:28:47,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 07:28:46" (2/3) ... [2020-09-25 07:28:47,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78837a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 07:28:47, skipping insertion in model container [2020-09-25 07:28:47,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 07:28:47" (3/3) ... [2020-09-25 07:28:47,703 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product12.cil.c [2020-09-25 07:28:47,715 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 07:28:47,726 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 07:28:47,749 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 07:28:47,787 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 07:28:47,787 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 07:28:47,788 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 07:28:47,788 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 07:28:47,788 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 07:28:47,788 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 07:28:47,788 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 07:28:47,788 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 07:28:47,819 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states. [2020-09-25 07:28:47,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 07:28:47,838 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:28:47,839 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:28:47,840 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:28:47,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:28:47,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1344573780, now seen corresponding path program 1 times [2020-09-25 07:28:47,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:28:47,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [214145995] [2020-09-25 07:28:47,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:28:48,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:48,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:48,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:50,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:51,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:51,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:52,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:53,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:53,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 07:28:53,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:28:53,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-09-25 07:28:53,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:53,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:53,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:53,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 07:28:53,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:53,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 07:28:53,682 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:28:53,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:28:53,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:53,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:53,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:53,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:28:53,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:53,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-25 07:28:53,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:53,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:53,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:53,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:53,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:53,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:53,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:28:53,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:53,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:53,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:53,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:28:53,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:53,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:28:53,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:53,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:53,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:53,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:53,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:53,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:53,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:28:53,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:53,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:53,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:53,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:28:53,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:53,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:28:53,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:53,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:53,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:53,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:53,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:53,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:53,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:28:53,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:53,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:53,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:53,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:28:53,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:53,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:28:53,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:53,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:53,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:53,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:53,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:53,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:53,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:28:53,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:53,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:53,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:53,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:28:53,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:53,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:28:53,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:53,953 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:53,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:53,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:53,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:53,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:53,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:28:53,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:53,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:53,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:53,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:28:53,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:53,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:28:53,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:53,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:53,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:53,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:28:53,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:53,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:53,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 07:28:53,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:53,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:53,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:53,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:28:53,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:53,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:28:53,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:53,975 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:53,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:53,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:28:53,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:53,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:53,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 07:28:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:53,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:53,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:28:53,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:28:53,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:28:53,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:28:53,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:28:53,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:28:53,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:28:53,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:28:53,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:28:53,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:28:54,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:28:54,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [214145995] [2020-09-25 07:28:54,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:28:54,016 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 07:28:54,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065399862] [2020-09-25 07:28:54,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 07:28:54,024 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:28:54,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 07:28:54,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:28:54,049 INFO L87 Difference]: Start difference. First operand 279 states. Second operand 4 states. [2020-09-25 07:28:55,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:28:55,466 INFO L93 Difference]: Finished difference Result 387 states and 462 transitions. [2020-09-25 07:28:55,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 07:28:55,468 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 07:28:55,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:28:55,489 INFO L225 Difference]: With dead ends: 387 [2020-09-25 07:28:55,489 INFO L226 Difference]: Without dead ends: 260 [2020-09-25 07:28:55,495 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 07:28:55,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-09-25 07:28:55,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 212. [2020-09-25 07:28:55,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-09-25 07:28:55,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 227 transitions. [2020-09-25 07:28:55,644 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 227 transitions. Word has length 148 [2020-09-25 07:28:55,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:28:55,647 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 227 transitions. [2020-09-25 07:28:55,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 07:28:55,655 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 227 transitions. [2020-09-25 07:28:55,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 07:28:55,665 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:28:55,666 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:28:55,666 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 07:28:55,666 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:28:55,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:28:55,670 INFO L82 PathProgramCache]: Analyzing trace with hash 643264666, now seen corresponding path program 1 times [2020-09-25 07:28:55,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:28:55,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1982849292] [2020-09-25 07:28:55,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:28:55,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:28:55,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:55,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:57,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:58,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:28:59,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:00,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:00,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:00,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 07:29:00,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 07:29:00,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 07:29:00,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:00,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:00,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:00,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 07:29:00,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 07:29:00,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:01,077 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:29:01,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:29:01,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:01,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:01,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:01,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:29:01,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:01,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-09-25 07:29:01,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:01,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:01,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:01,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:01,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:01,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:01,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:29:01,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:01,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:01,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:01,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:01,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:01,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:01,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:01,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:01,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:01,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:01,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:01,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:01,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:29:01,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:01,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:01,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:01,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:01,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:01,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:01,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:01,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:01,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:01,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:01,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:01,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:01,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:29:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:01,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:01,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:01,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:01,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:01,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:29:01,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:01,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:01,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:01,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:01,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:01,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:01,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:29:01,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:01,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:01,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:01,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:01,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:01,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 07:29:01,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:01,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:01,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:01,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:01,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:01,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:01,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:29:01,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:01,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:01,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:01,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:29:01,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:01,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:01,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:01,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:01,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:01,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:01,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:01,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:01,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 07:29:01,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:01,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:01,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:01,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:01,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:01,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:01,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:01,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:01,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:01,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:29:01,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:01,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:01,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 07:29:01,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:01,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:01,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:01,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:01,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:01,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:29:01,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:01,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:01,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:01,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:29:01,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:01,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:01,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:29:01,361 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1982849292] [2020-09-25 07:29:01,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:29:01,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 07:29:01,362 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023381965] [2020-09-25 07:29:01,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 07:29:01,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:29:01,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 07:29:01,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 07:29:01,366 INFO L87 Difference]: Start difference. First operand 212 states and 227 transitions. Second operand 5 states. [2020-09-25 07:29:02,120 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:29:02,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:29:02,947 INFO L93 Difference]: Finished difference Result 303 states and 343 transitions. [2020-09-25 07:29:02,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 07:29:02,948 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 07:29:02,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:29:02,953 INFO L225 Difference]: With dead ends: 303 [2020-09-25 07:29:02,954 INFO L226 Difference]: Without dead ends: 249 [2020-09-25 07:29:02,956 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 07:29:02,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-09-25 07:29:03,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 202. [2020-09-25 07:29:03,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 202 states. [2020-09-25 07:29:03,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 214 transitions. [2020-09-25 07:29:03,033 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 214 transitions. Word has length 149 [2020-09-25 07:29:03,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:29:03,036 INFO L479 AbstractCegarLoop]: Abstraction has 202 states and 214 transitions. [2020-09-25 07:29:03,037 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 07:29:03,037 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 214 transitions. [2020-09-25 07:29:03,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 07:29:03,043 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:29:03,043 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:29:03,044 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 07:29:03,044 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:29:03,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:29:03,044 INFO L82 PathProgramCache]: Analyzing trace with hash -2137394470, now seen corresponding path program 1 times [2020-09-25 07:29:03,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:29:03,045 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [180088665] [2020-09-25 07:29:03,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:29:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:03,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:03,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:04,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:04,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:05,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:08,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:08,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-09-25 07:29:08,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 07:29:08,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-09-25 07:29:08,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:08,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:08,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:08,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 07:29:08,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 07:29:08,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:08,455 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:29:08,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:29:08,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:08,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:08,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:08,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:29:08,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:08,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 07:29:08,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:08,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:08,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:08,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:08,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:08,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:08,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:29:08,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:08,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:08,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:08,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:08,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:08,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:29:08,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:08,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:08,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:08,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:08,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:08,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:08,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:29:08,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:08,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:08,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:08,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:08,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:08,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:08,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:08,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:08,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:08,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:08,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:08,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:29:08,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:29:08,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:08,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:08,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:08,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:08,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:08,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:29:08,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:08,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:08,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:08,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:08,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:08,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:08,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:29:08,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:08,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:08,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:08,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:08,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:08,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:08,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:08,621 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:08,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:08,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:08,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:08,622 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:08,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:29:08,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:08,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:08,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:08,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:29:08,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:08,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:08,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:08,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:08,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:08,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:08,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:08,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:08,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 07:29:08,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:08,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:08,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:08,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:29:08,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:08,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:08,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:08,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:08,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:08,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:08,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:29:08,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:29:08,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 07:29:08,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:08,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:08,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:08,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:08,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:08,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:08,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:08,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:08,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:08,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:29:08,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:08,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:29:08,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 07:29:08,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:08,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:08,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:08,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:08,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:08,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:29:08,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:08,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:08,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:08,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:29:08,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:08,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:29:08,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:29:08,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [180088665] [2020-09-25 07:29:08,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:29:08,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:29:08,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152450903] [2020-09-25 07:29:08,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:29:08,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:29:08,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:29:08,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:29:08,715 INFO L87 Difference]: Start difference. First operand 202 states and 214 transitions. Second operand 6 states. [2020-09-25 07:29:09,291 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:29:10,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:29:10,771 INFO L93 Difference]: Finished difference Result 452 states and 530 transitions. [2020-09-25 07:29:10,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:29:10,772 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2020-09-25 07:29:10,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:29:10,776 INFO L225 Difference]: With dead ends: 452 [2020-09-25 07:29:10,776 INFO L226 Difference]: Without dead ends: 365 [2020-09-25 07:29:10,778 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:29:10,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2020-09-25 07:29:10,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 273. [2020-09-25 07:29:10,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273 states. [2020-09-25 07:29:10,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 296 transitions. [2020-09-25 07:29:10,831 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 296 transitions. Word has length 162 [2020-09-25 07:29:10,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:29:10,832 INFO L479 AbstractCegarLoop]: Abstraction has 273 states and 296 transitions. [2020-09-25 07:29:10,832 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:29:10,832 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 296 transitions. [2020-09-25 07:29:10,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-25 07:29:10,834 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:29:10,834 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] [2020-09-25 07:29:10,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 07:29:10,835 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:29:10,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:29:10,835 INFO L82 PathProgramCache]: Analyzing trace with hash 424813737, now seen corresponding path program 1 times [2020-09-25 07:29:10,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:29:10,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [136981618] [2020-09-25 07:29:10,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:29:10,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:10,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:11,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:12,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:12,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:15,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:15,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 07:29:15,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:29:15,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 07:29:15,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:15,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:15,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 07:29:15,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 07:29:15,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 07:29:15,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:29:16,353 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:29:16,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:29:16,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:16,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:16,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:16,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:29:16,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:16,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 07:29:16,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:16,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:16,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:16,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:16,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:16,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:16,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:29:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:16,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:16,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:16,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:16,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:16,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:16,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:16,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:16,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:16,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:16,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:16,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:16,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:29:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:16,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:16,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:16,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:16,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:16,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:16,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:16,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:16,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:16,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:16,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:16,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:16,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:29:16,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:16,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:16,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:16,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:16,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:16,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:29:16,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:16,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:16,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:16,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:16,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:16,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:16,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:29:16,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:16,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:16,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:16,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:16,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:16,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:29:16,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:16,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:16,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:16,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:16,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:16,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:16,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:29:16,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:16,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:16,569 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:16,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:29:16,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:16,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:29:16,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:16,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:16,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:16,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:16,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 07:29:16,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:29:16,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 07:29:16,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:16,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:16,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:16,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:29:16,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:16,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 07:29:16,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:16,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:16,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:16,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:16,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 07:29:16,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:16,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 07:29:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:16,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:16,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:16,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:16,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:16,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:29:16,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:16,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:16,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:16,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:16,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 07:29:16,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:16,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 07:29:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:16,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:16,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:16,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:16,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:16,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:29:16,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:16,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:16,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:16,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:16,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:29:16,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:16,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-25 07:29:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:16,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:16,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:16,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:16,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:16,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:29:16,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:16,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:16,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:16,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:16,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 07:29:16,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:16,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 07:29:16,699 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [136981618] [2020-09-25 07:29:16,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 07:29:16,699 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 07:29:16,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489873798] [2020-09-25 07:29:16,700 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 07:29:16,701 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:29:16,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 07:29:16,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 07:29:16,702 INFO L87 Difference]: Start difference. First operand 273 states and 296 transitions. Second operand 6 states. [2020-09-25 07:29:17,413 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:29:19,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:29:19,192 INFO L93 Difference]: Finished difference Result 607 states and 740 transitions. [2020-09-25 07:29:19,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 07:29:19,192 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2020-09-25 07:29:19,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:29:19,198 INFO L225 Difference]: With dead ends: 607 [2020-09-25 07:29:19,198 INFO L226 Difference]: Without dead ends: 604 [2020-09-25 07:29:19,199 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 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 07:29:19,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2020-09-25 07:29:19,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 434. [2020-09-25 07:29:19,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2020-09-25 07:29:19,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 483 transitions. [2020-09-25 07:29:19,282 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 483 transitions. Word has length 165 [2020-09-25 07:29:19,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:29:19,283 INFO L479 AbstractCegarLoop]: Abstraction has 434 states and 483 transitions. [2020-09-25 07:29:19,283 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 07:29:19,283 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 483 transitions. [2020-09-25 07:29:19,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-09-25 07:29:19,286 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:29:19,287 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 07:29:19,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 07:29:19,287 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:29:19,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:29:19,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1785871732, now seen corresponding path program 1 times [2020-09-25 07:29:19,288 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:29:19,288 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1270567469] [2020-09-25 07:29:19,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:29:19,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:19,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:19,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:19,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:21,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:24,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:24,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-09-25 07:29:24,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 07:29:24,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-09-25 07:29:24,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:24,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:24,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:29:24,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 187 [2020-09-25 07:29:24,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 07:29:24,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:24,684 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 07:29:24,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 07:29:24,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:24,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:24,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:24,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 07:29:24,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:24,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 07:29:24,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:24,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:24,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:24,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:24,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:24,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:24,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 07:29:24,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:24,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:24,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:24,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:24,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:24,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:29:24,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:24,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:24,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:24,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:24,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:24,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:24,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 07:29:24,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:24,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:24,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:24,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:24,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:24,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:24,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:24,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:24,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:24,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:24,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:24,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:24,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 07:29:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:24,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:24,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:24,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:24,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:24,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:24,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:24,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:24,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:24,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:24,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:24,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:24,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 07:29:24,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:24,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:24,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:24,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:24,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:24,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:24,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:24,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:24,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:24,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:24,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:24,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:24,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 07:29:24,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:24,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:24,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:24,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:29:24,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:24,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:29:24,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:24,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:24,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:24,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:24,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:24,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:29:24,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 07:29:24,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:24,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:24,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:24,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:29:24,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:24,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:24,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:24,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:24,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:24,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:24,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:24,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:29:24,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 07:29:24,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:24,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:24,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:24,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:24,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 07:29:24,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 07:29:24,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 07:29:24,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:24,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:24,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:29:24,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:24,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 07:29:24,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:24,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:29:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:24,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:24,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:24,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:24,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:24,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 07:29:24,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:24,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:24,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:24,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:24,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:25,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:25,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 07:29:25,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:25,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:25,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:25,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 07:29:25,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:25,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 07:29:25,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:25,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:25,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 07:29:25,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:25,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 07:29:25,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:25,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 07:29:25,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:25,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:25,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:25,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:25,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:25,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:29:25,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:25,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:25,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:25,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:25,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:25,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:25,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 07:29:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:25,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:25,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:25,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:25,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:25,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 07:29:25,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:25,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:25,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 07:29:25,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:25,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 07:29:25,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:25,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2020-09-25 07:29:25,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:25,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:25,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:25,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 07:29:25,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:25,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 07:29:25,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:25,136 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:25,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 07:29:25,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 07:29:25,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 07:29:25,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:29:25,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-09-25 07:29:25,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:25,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:25,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:25,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 07:29:25,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:25,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 07:29:25,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:25,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:25,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:25,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-09-25 07:29:25,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:25,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 07:29:25,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-25 07:29:25,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:25,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:25,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:25,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:25,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:25,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:25,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:25,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:25,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:25,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:29:25,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:25,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:29:25,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-25 07:29:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:25,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:25,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 07:29:25,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 07:29:25,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 07:29:25,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 07:29:25,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 07:29:25,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.8 [2020-09-25 07:29:25,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 07:29:25,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 07:29:25,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 07:29:25,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 07:29:25,206 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 07:29:25,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1270567469] [2020-09-25 07:29:25,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 07:29:25,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 07:29:25,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334264771] [2020-09-25 07:29:25,208 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 07:29:25,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 07:29:25,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 07:29:25,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-25 07:29:25,208 INFO L87 Difference]: Start difference. First operand 434 states and 483 transitions. Second operand 11 states. [2020-09-25 07:29:26,445 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 07:29:27,292 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:29:27,608 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 07:29:27,981 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 07:29:28,313 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:29:28,630 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 07:29:28,938 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 07:29:29,222 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:29:29,536 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 07:29:29,873 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 07:29:30,234 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-25 07:29:30,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 07:29:30,733 INFO L93 Difference]: Finished difference Result 1092 states and 1332 transitions. [2020-09-25 07:29:30,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-25 07:29:30,734 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 218 [2020-09-25 07:29:30,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 07:29:30,747 INFO L225 Difference]: With dead ends: 1092 [2020-09-25 07:29:30,748 INFO L226 Difference]: Without dead ends: 773 [2020-09-25 07:29:30,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=230, Invalid=640, Unknown=0, NotChecked=0, Total=870 [2020-09-25 07:29:30,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2020-09-25 07:29:30,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 603. [2020-09-25 07:29:30,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2020-09-25 07:29:30,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 680 transitions. [2020-09-25 07:29:30,868 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 680 transitions. Word has length 218 [2020-09-25 07:29:30,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 07:29:30,869 INFO L479 AbstractCegarLoop]: Abstraction has 603 states and 680 transitions. [2020-09-25 07:29:30,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 07:29:30,869 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 680 transitions. [2020-09-25 07:29:30,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-09-25 07:29:30,876 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 07:29:30,877 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, 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] [2020-09-25 07:29:30,877 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 07:29:30,877 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 07:29:30,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 07:29:30,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1982001904, now seen corresponding path program 1 times [2020-09-25 07:29:30,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 07:29:30,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1515492304] [2020-09-25 07:29:30,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 07:29:30,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 07:29:30,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:31,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:31,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 07:29:32,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking...