/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product17.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:14:36,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:14:36,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:14:36,394 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:14:36,395 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:14:36,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:14:36,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:14:36,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:14:36,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:14:36,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:14:36,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:14:36,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:14:36,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:14:36,424 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:14:36,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:14:36,430 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:14:36,432 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:14:36,433 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:14:36,435 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:14:36,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:14:36,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:14:36,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:14:36,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:14:36,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:14:36,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:14:36,451 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:14:36,451 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:14:36,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:14:36,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:14:36,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:14:36,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:14:36,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:14:36,457 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:14:36,458 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:14:36,459 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:14:36,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:14:36,460 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:14:36,460 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:14:36,460 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:14:36,461 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:14:36,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:14:36,463 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 05:14:36,513 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:14:36,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:14:36,515 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:14:36,515 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:14:36,515 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:14:36,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:14:36,516 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:14:36,516 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:14:36,516 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:14:36,516 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:14:36,517 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:14:36,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:14:36,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:14:36,517 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:14:36,517 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:14:36,518 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:14:36,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:14:36,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:14:36,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:14:36,519 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:14:36,519 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:14:36,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:14:36,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:14:36,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:14:36,520 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:14:36,520 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:14:36,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:14:36,520 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:14:36,520 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:14:36,521 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:14:36,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:14:36,996 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:14:37,001 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:14:37,003 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:14:37,003 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:14:37,004 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product17.cil.c [2020-09-25 05:14:37,102 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1389a7909/3ce0a62eb92e4a95a9d0629571b1540f/FLAG4d835fb58 [2020-09-25 05:14:37,785 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:14:37,786 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product17.cil.c [2020-09-25 05:14:37,802 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1389a7909/3ce0a62eb92e4a95a9d0629571b1540f/FLAG4d835fb58 [2020-09-25 05:14:38,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1389a7909/3ce0a62eb92e4a95a9d0629571b1540f [2020-09-25 05:14:38,036 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:14:38,041 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:14:38,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:14:38,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:14:38,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:14:38,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:14:38" (1/1) ... [2020-09-25 05:14:38,052 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10ac6c89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:14:38, skipping insertion in model container [2020-09-25 05:14:38,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:14:38" (1/1) ... [2020-09-25 05:14:38,061 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:14:38,114 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:14:38,607 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:14:38,631 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:14:38,771 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:14:38,807 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:14:38,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:14:38 WrapperNode [2020-09-25 05:14:38,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:14:38,808 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:14:38,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:14:38,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:14:38,824 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:14:38" (1/1) ... [2020-09-25 05:14:38,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:14:38" (1/1) ... [2020-09-25 05:14:38,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:14:38" (1/1) ... [2020-09-25 05:14:38,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:14:38" (1/1) ... [2020-09-25 05:14:38,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:14:38" (1/1) ... [2020-09-25 05:14:38,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:14:38" (1/1) ... [2020-09-25 05:14:38,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:14:38" (1/1) ... [2020-09-25 05:14:38,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:14:38,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:14:38,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:14:38,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:14:38,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:14:38" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:14:39,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:14:39,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:14:39,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 05:14:39,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 05:14:39,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 05:14:39,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 05:14:39,005 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 05:14:39,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 05:14:39,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 05:14:39,007 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 05:14:39,007 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 05:14:39,007 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 05:14:39,008 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 05:14:39,008 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 05:14:39,008 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 05:14:39,009 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 05:14:39,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 05:14:39,009 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 05:14:39,010 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 05:14:39,010 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 05:14:39,010 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 05:14:39,011 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 05:14:39,011 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 05:14:39,011 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 05:14:39,011 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 05:14:39,012 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 05:14:39,012 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 05:14:39,012 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 05:14:39,013 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 05:14:39,013 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 05:14:39,013 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 05:14:39,013 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:14:39,013 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 05:14:39,013 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 05:14:39,014 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 05:14:39,014 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 05:14:39,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 05:14:39,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:14:39,014 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:14:39,014 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:14:39,015 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 05:14:39,015 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:14:39,015 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:14:39,015 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 05:14:39,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:14:39,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:14:39,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:14:39,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:14:39,016 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 05:14:39,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:14:39,017 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 05:14:39,017 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 05:14:39,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:14:39,018 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 05:14:39,018 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 05:14:39,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:14:39,018 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 05:14:39,018 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 05:14:39,019 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 05:14:39,019 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 05:14:39,019 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 05:14:39,019 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 05:14:39,019 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 05:14:39,020 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 05:14:39,020 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 05:14:39,020 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 05:14:39,020 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 05:14:39,020 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 05:14:39,021 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 05:14:39,021 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 05:14:39,022 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 05:14:39,023 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 05:14:39,023 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 05:14:39,024 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 05:14:39,024 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 05:14:39,024 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 05:14:39,024 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 05:14:39,024 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 05:14:39,024 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 05:14:39,025 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 05:14:39,025 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 05:14:39,025 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 05:14:39,026 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 05:14:39,026 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:14:39,026 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 05:14:39,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:14:39,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:14:39,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:14:40,176 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:14:40,177 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 05:14:40,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:14:40 BoogieIcfgContainer [2020-09-25 05:14:40,184 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:14:40,185 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:14:40,185 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:14:40,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:14:40,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:14:38" (1/3) ... [2020-09-25 05:14:40,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69ebc6c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:14:40, skipping insertion in model container [2020-09-25 05:14:40,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:14:38" (2/3) ... [2020-09-25 05:14:40,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69ebc6c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:14:40, skipping insertion in model container [2020-09-25 05:14:40,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:14:40" (3/3) ... [2020-09-25 05:14:40,193 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product17.cil.c [2020-09-25 05:14:40,205 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:14:40,217 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:14:40,240 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:14:40,270 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:14:40,270 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:14:40,271 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:14:40,271 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:14:40,271 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:14:40,271 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:14:40,271 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:14:40,271 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:14:40,298 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states. [2020-09-25 05:14:40,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 05:14:40,316 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:14:40,318 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] [2020-09-25 05:14:40,318 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:14:40,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:14:40,326 INFO L82 PathProgramCache]: Analyzing trace with hash 1231247222, now seen corresponding path program 1 times [2020-09-25 05:14:40,336 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:14:40,336 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2038757446] [2020-09-25 05:14:40,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:14:40,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:40,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:41,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:41,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:45,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:45,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 05:14:45,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:14:45,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4311 [2020-09-25 05:14:45,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:45,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:45,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:14:45,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 05:14:45,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:14:45,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 05:14:45,469 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:14:45,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:14:45,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:45,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:45,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:45,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:14:45,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:14:45,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-25 05:14:45,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:45,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:45,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:14:45,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:14:45,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:14:45,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:14:45,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:14:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:45,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:45,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:45,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:14:45,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:14:45,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:14:45,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:45,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:45,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:14:45,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:14:45,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:14:45,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:14:45,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:14:45,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:45,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:45,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:45,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:14:45,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:14:45,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:14:45,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:45,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:45,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:14:45,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:14:45,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:14:45,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:14:45,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:14:45,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:45,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:45,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:45,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:14:45,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:14:45,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:14:45,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:45,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:14:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:14:45,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:14:45,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:14:45,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:14:45,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:45,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:45,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:45,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:14:45,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:14:45,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:14:45,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:45,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:45,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:14:45,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:14:45,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:14:45,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:14:45,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 05:14:45,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:45,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:45,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:45,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:14:45,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:14:45,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:14:45,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:45,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:45,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:14:45,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:14:45,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:14:45,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:14:45,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:14:45,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:45,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:45,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:45,748 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:14:45,748 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:14:45,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:14:45,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:45,749 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:45,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:14:45,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:14:45,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:14:45,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:14:45,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 05:14:45,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:45,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:45,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:45,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:14:45,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:14:45,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:14:45,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:45,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:45,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:14:45,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:14:45,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:14:45,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:14:45,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:14:45,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2038757446] [2020-09-25 05:14:45,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:14:45,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 05:14:45,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072955633] [2020-09-25 05:14:45,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 05:14:45,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:14:45,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 05:14:45,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:14:45,854 INFO L87 Difference]: Start difference. First operand 292 states. Second operand 3 states. [2020-09-25 05:14:47,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:14:47,249 INFO L93 Difference]: Finished difference Result 435 states and 517 transitions. [2020-09-25 05:14:47,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 05:14:47,257 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 05:14:47,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:14:47,290 INFO L225 Difference]: With dead ends: 435 [2020-09-25 05:14:47,290 INFO L226 Difference]: Without dead ends: 274 [2020-09-25 05:14:47,299 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 05:14:47,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-09-25 05:14:47,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 235. [2020-09-25 05:14:47,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-09-25 05:14:47,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 253 transitions. [2020-09-25 05:14:47,438 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 253 transitions. Word has length 153 [2020-09-25 05:14:47,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:14:47,439 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 253 transitions. [2020-09-25 05:14:47,439 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 05:14:47,440 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 253 transitions. [2020-09-25 05:14:47,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 05:14:47,444 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:14:47,445 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] [2020-09-25 05:14:47,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:14:47,445 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:14:47,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:14:47,446 INFO L82 PathProgramCache]: Analyzing trace with hash -606501768, now seen corresponding path program 1 times [2020-09-25 05:14:47,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:14:47,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1454536627] [2020-09-25 05:14:47,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:14:47,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:47,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:47,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:48,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:52,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:52,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 05:14:52,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 05:14:52,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 05:14:52,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:52,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:52,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:14:52,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 05:14:52,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 05:14:52,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:14:52,831 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:14:52,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:14:52,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:52,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:53,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:53,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:14:53,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:14:53,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-09-25 05:14:53,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:53,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:53,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:14:53,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:14:53,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 05:14:53,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:14:53,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:14:53,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:53,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:53,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:53,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:14:53,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:14:53,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:14:53,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:53,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:53,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:14:53,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:14:53,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:14:53,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:14:53,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:14:53,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:53,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:53,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:53,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:14:53,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:14:53,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:14:53,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:53,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:53,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:14:53,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:14:53,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:14:53,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:14:53,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:14:53,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:53,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:53,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:53,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:14:53,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:14:53,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 05:14:53,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:53,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:53,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:14:53,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:14:53,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:14:53,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:14:53,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:14:53,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:53,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:53,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:53,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:14:53,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:14:53,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 05:14:53,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:53,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:53,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:14:53,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:14:53,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:14:53,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:14:53,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 05:14:53,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:53,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:53,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:53,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:14:53,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:14:53,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:14:53,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:53,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:53,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:14:53,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:14:53,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:14:53,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:14:53,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 05:14:53,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:53,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:53,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:53,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:14:53,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:14:53,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:14:53,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:53,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:53,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:14:53,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:14:53,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:14:53,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:14:53,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 05:14:53,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:53,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:53,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:53,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:14:53,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:14:53,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:14:53,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:53,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:53,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:14:53,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:14:53,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:14:53,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:14:53,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:14:53,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1454536627] [2020-09-25 05:14:53,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:14:53,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:14:53,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589618490] [2020-09-25 05:14:53,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:14:53,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:14:53,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:14:53,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:14:53,306 INFO L87 Difference]: Start difference. First operand 235 states and 253 transitions. Second operand 4 states. [2020-09-25 05:14:53,865 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:14:54,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:14:54,808 INFO L93 Difference]: Finished difference Result 399 states and 458 transitions. [2020-09-25 05:14:54,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 05:14:54,809 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 05:14:54,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:14:54,814 INFO L225 Difference]: With dead ends: 399 [2020-09-25 05:14:54,814 INFO L226 Difference]: Without dead ends: 274 [2020-09-25 05:14:54,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:14:54,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-09-25 05:14:54,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 235. [2020-09-25 05:14:54,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-09-25 05:14:54,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 252 transitions. [2020-09-25 05:14:54,860 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 252 transitions. Word has length 154 [2020-09-25 05:14:54,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:14:54,861 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 252 transitions. [2020-09-25 05:14:54,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:14:54,861 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 252 transitions. [2020-09-25 05:14:54,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 05:14:54,864 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:14:54,864 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:14:54,864 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:14:54,864 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:14:54,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:14:54,865 INFO L82 PathProgramCache]: Analyzing trace with hash -23414697, now seen corresponding path program 1 times [2020-09-25 05:14:54,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:14:54,866 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [128447371] [2020-09-25 05:14:54,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:14:54,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:54,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:55,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:57,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:57,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 05:14:57,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:14:57,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2851 [2020-09-25 05:14:57,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:57,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:57,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:14:57,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 05:14:57,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:14:57,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:14:58,036 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:14:58,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:14:58,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:58,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:58,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:58,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:14:58,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:14:58,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 05:14:58,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:58,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:58,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:14:58,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:14:58,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:14:58,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:14:58,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:14:58,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:58,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:58,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:58,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:14:58,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:14:58,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:14:58,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:58,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:58,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:14:58,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:14:58,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:14:58,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:14:58,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:14:58,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:58,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:58,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:58,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:14:58,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:14:58,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:14:58,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:58,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:58,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:14:58,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:14:58,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:14:58,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:14:58,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:14:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:58,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:58,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:58,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:14:58,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:14:58,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:14:58,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:58,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:58,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:14:58,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:14:58,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:14:58,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:14:58,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:14:58,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:58,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:58,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:58,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:14:58,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:14:58,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:14:58,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:58,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:58,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:14:58,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:14:58,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:14:58,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:14:58,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 05:14:58,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:58,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:58,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:58,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:14:58,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:14:58,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:14:58,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:58,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:58,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:14:58,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 05:14:58,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:14:58,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 05:14:58,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:14:58,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:58,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:58,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:58,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:14:58,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:14:58,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:14:58,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:58,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:58,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:14:58,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:14:58,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:14:58,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:14:58,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 05:14:58,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:58,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:58,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:58,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:14:58,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:14:58,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:14:58,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:58,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:58,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:14:58,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:14:58,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:14:58,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:14:58,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 05:14:58,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:58,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:58,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:58,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:14:58,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:14:58,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:14:58,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:58,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:58,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:14:58,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:14:58,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:14:58,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:14:58,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 05:14:58,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:14:58,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:14:58,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:14:58,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:14:58,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:14:58,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:14:58,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:14:58,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:14:58,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:14:58,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:14:58,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:14:58,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:14:58,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:14:58,280 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [128447371] [2020-09-25 05:14:58,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:14:58,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:14:58,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526075466] [2020-09-25 05:14:58,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:14:58,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:14:58,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:14:58,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:14:58,284 INFO L87 Difference]: Start difference. First operand 235 states and 252 transitions. Second operand 5 states. [2020-09-25 05:14:58,984 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:14:59,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:14:59,966 INFO L93 Difference]: Finished difference Result 376 states and 426 transitions. [2020-09-25 05:14:59,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:14:59,967 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 162 [2020-09-25 05:14:59,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:14:59,970 INFO L225 Difference]: With dead ends: 376 [2020-09-25 05:14:59,970 INFO L226 Difference]: Without dead ends: 281 [2020-09-25 05:14:59,972 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:14:59,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-09-25 05:15:00,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 225. [2020-09-25 05:15:00,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-09-25 05:15:00,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 239 transitions. [2020-09-25 05:15:00,004 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 239 transitions. Word has length 162 [2020-09-25 05:15:00,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:15:00,005 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 239 transitions. [2020-09-25 05:15:00,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:15:00,005 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 239 transitions. [2020-09-25 05:15:00,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 05:15:00,008 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:15:00,008 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:15:00,008 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:15:00,008 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:15:00,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:15:00,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1060139161, now seen corresponding path program 1 times [2020-09-25 05:15:00,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:15:00,009 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [843044658] [2020-09-25 05:15:00,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:15:00,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:00,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:01,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:01,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 05:15:01,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:01,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1801 [2020-09-25 05:15:01,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:01,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:01,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 05:15:01,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 05:15:01,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-09-25 05:15:01,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:02,285 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:15:02,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:15:02,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:02,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:02,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:02,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:15:02,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:02,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-09-25 05:15:02,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:02,648 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:02,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:02,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:02,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 05:15:02,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:02,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:15:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:02,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:02,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:02,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:02,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:02,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:15:02,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:02,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:02,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:02,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:02,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:15:02,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:02,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:15:02,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:02,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:02,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:02,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:02,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:02,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:15:02,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:02,730 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:02,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:02,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:02,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:15:02,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:02,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:15:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:02,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:02,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:02,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:02,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:02,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 05:15:02,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:02,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:02,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:02,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:02,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:15:02,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:02,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:15:02,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:02,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:02,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:02,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:02,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:02,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:15:02,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:02,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:02,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:02,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:02,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:15:02,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:15:02,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 05:15:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:02,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:02,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:02,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:15:02,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:02,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:15:02,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:02,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:02,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:02,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:02,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 05:15:02,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:02,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:15:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:02,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:02,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:02,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:02,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:02,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:02,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:02,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:02,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:02,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:02,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:02,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:02,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 05:15:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:02,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:02,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:02,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:02,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:02,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:15:02,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:02,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:02,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:02,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:02,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:15:02,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:02,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 05:15:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:02,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:02,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:02,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:02,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:02,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:15:02,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:02,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:02,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 05:15:02,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:02,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:15:02,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:02,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 05:15:02,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:02,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:02,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:02,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:02,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:02,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:02,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:02,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:02,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:02,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:02,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:02,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:02,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:15:02,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [843044658] [2020-09-25 05:15:02,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:15:02,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 05:15:02,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623228690] [2020-09-25 05:15:02,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 05:15:02,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:15:02,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 05:15:02,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 05:15:02,929 INFO L87 Difference]: Start difference. First operand 225 states and 239 transitions. Second operand 9 states. [2020-09-25 05:15:03,442 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 05:15:04,489 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:15:05,664 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 05:15:06,316 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 05:15:06,661 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:15:07,035 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:15:07,326 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:15:07,659 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 05:15:08,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:15:08,327 INFO L93 Difference]: Finished difference Result 526 states and 615 transitions. [2020-09-25 05:15:08,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 05:15:08,328 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 171 [2020-09-25 05:15:08,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:15:08,336 INFO L225 Difference]: With dead ends: 526 [2020-09-25 05:15:08,336 INFO L226 Difference]: Without dead ends: 411 [2020-09-25 05:15:08,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 05:15:08,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2020-09-25 05:15:08,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 336. [2020-09-25 05:15:08,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 336 states. [2020-09-25 05:15:08,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 365 transitions. [2020-09-25 05:15:08,411 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 365 transitions. Word has length 171 [2020-09-25 05:15:08,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:15:08,412 INFO L479 AbstractCegarLoop]: Abstraction has 336 states and 365 transitions. [2020-09-25 05:15:08,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 05:15:08,412 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 365 transitions. [2020-09-25 05:15:08,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 05:15:08,415 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:15:08,415 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:15:08,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:15:08,416 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:15:08,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:15:08,416 INFO L82 PathProgramCache]: Analyzing trace with hash -326651843, now seen corresponding path program 1 times [2020-09-25 05:15:08,416 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:15:08,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [749501645] [2020-09-25 05:15:08,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:15:08,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:08,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:08,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:11,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:13,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:13,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:13,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-09-25 05:15:13,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 05:15:13,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 05:15:13,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:13,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:13,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:15:13,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 05:15:13,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 05:15:13,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:13,797 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 05:15:13,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:15:13,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:13,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:13,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:13,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 05:15:13,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:13,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-09-25 05:15:13,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:13,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:13,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:13,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:13,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:13,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:13,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 05:15:13,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:13,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:13,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:13,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:13,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:13,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:13,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:13,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:13,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:13,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:13,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:13,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:13,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 05:15:13,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:13,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:13,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:13,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:13,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:13,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:13,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:13,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:13,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:13,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:13,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:13,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:13,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 05:15:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:13,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:14,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:14,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:14,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:14,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:15:14,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:14,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:14,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:14,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:14,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:14,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:14,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 05:15:14,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:14,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:14,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:14,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:14,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:14,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:15:14,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:14,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:14,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:14,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:14,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:14,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:15:14,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 05:15:14,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:14,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:14,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:14,035 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:15:14,035 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:14,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:15:14,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:14,036 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:14,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:14,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:14,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:14,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:14,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 05:15:14,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:14,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:14,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:14,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 05:15:14,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:14,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:15:14,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:14,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:14,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:14,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:14,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:15:14,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:14,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-25 05:15:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:14,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:14,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:14,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:15:14,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:14,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 05:15:14,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:14,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:14,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:15:14,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 05:15:14,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 05:15:14,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:14,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:15:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:14,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:14,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:14,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:15:14,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:14,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 05:15:14,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:14,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:14,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:15:14,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:15:14,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:15:14,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:14,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 05:15:14,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:14,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:14,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:14,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:14,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:14,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 05:15:14,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:14,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:14,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:14,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:14,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:14,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 05:15:14,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 05:15:14,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:14,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:14,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:14,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:14,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:14,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:15:14,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:14,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:14,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:14,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:14,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:14,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:14,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-25 05:15:14,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:15:14,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:15:14,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:15:14,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:15:14,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:15:14,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:15:14,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:15:14,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:15:14,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:15:14,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:15:14,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:15:14,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:15:14,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:15:14,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [749501645] [2020-09-25 05:15:14,258 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:15:14,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 05:15:14,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547906619] [2020-09-25 05:15:14,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 05:15:14,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:15:14,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 05:15:14,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:15:14,260 INFO L87 Difference]: Start difference. First operand 336 states and 365 transitions. Second operand 7 states. [2020-09-25 05:15:15,519 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:15:15,744 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:15:17,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:15:17,934 INFO L93 Difference]: Finished difference Result 790 states and 932 transitions. [2020-09-25 05:15:17,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 05:15:17,935 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 181 [2020-09-25 05:15:17,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:15:17,939 INFO L225 Difference]: With dead ends: 790 [2020-09-25 05:15:17,939 INFO L226 Difference]: Without dead ends: 564 [2020-09-25 05:15:17,940 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-09-25 05:15:17,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-09-25 05:15:18,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 501. [2020-09-25 05:15:18,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2020-09-25 05:15:18,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 564 transitions. [2020-09-25 05:15:18,004 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 564 transitions. Word has length 181 [2020-09-25 05:15:18,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:15:18,004 INFO L479 AbstractCegarLoop]: Abstraction has 501 states and 564 transitions. [2020-09-25 05:15:18,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 05:15:18,005 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 564 transitions. [2020-09-25 05:15:18,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 05:15:18,008 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:15:18,008 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:15:18,008 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:15:18,009 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:15:18,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:15:18,009 INFO L82 PathProgramCache]: Analyzing trace with hash 558510229, now seen corresponding path program 1 times [2020-09-25 05:15:18,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:15:18,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2116648121] [2020-09-25 05:15:18,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:15:18,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 05:15:18,069 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 05:15:18,069 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 05:15:18,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 05:15:18,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 05:15:18 BoogieIcfgContainer [2020-09-25 05:15:18,103 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 05:15:18,107 INFO L168 Benchmark]: Toolchain (without parser) took 40068.14 ms. Allocated memory was 147.3 MB in the beginning and 664.8 MB in the end (delta: 517.5 MB). Free memory was 101.1 MB in the beginning and 533.3 MB in the end (delta: -432.2 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. [2020-09-25 05:15:18,110 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 147.3 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 05:15:18,113 INFO L168 Benchmark]: CACSL2BoogieTranslator took 766.37 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 100.4 MB in the beginning and 170.4 MB in the end (delta: -70.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2020-09-25 05:15:18,115 INFO L168 Benchmark]: Boogie Preprocessor took 92.11 ms. Allocated memory is still 204.5 MB. Free memory was 170.4 MB in the beginning and 165.9 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2020-09-25 05:15:18,116 INFO L168 Benchmark]: RCFGBuilder took 1283.15 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 165.9 MB in the beginning and 175.5 MB in the end (delta: -9.6 MB). Peak memory consumption was 79.8 MB. Max. memory is 7.1 GB. [2020-09-25 05:15:18,117 INFO L168 Benchmark]: TraceAbstraction took 37918.09 ms. Allocated memory was 237.0 MB in the beginning and 664.8 MB in the end (delta: 427.8 MB). Free memory was 175.5 MB in the beginning and 533.3 MB in the end (delta: -357.8 MB). Peak memory consumption was 70.0 MB. Max. memory is 7.1 GB. [2020-09-25 05:15:18,126 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 147.3 MB. Free memory was 120.7 MB in the beginning and 120.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 766.37 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 100.4 MB in the beginning and 170.4 MB in the end (delta: -70.0 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.11 ms. Allocated memory is still 204.5 MB. Free memory was 170.4 MB in the beginning and 165.9 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1283.15 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 165.9 MB in the beginning and 175.5 MB in the end (delta: -9.6 MB). Peak memory consumption was 79.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 37918.09 ms. Allocated memory was 237.0 MB in the beginning and 664.8 MB in the end (delta: 427.8 MB). Free memory was 175.5 MB in the beginning and 533.3 MB in the end (delta: -357.8 MB). Peak memory consumption was 70.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 506]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L413] int waterLevel = 1; [L414] int methaneLevelCritical = 0; [L582] int pumpRunning = 0; [L583] int systemActive = 1; [L735] int cleanupTimeShifts = 4; [L811] int retValue_acc ; [L812] int tmp ; [L816] FCALL select_helpers() [L817] FCALL select_features() [L818] CALL, EXPR valid_product() [L860] int retValue_acc ; [L863] retValue_acc = 1 [L864] return (retValue_acc); [L818] RET, EXPR valid_product() [L818] tmp = valid_product() [L820] COND TRUE \read(tmp) [L822] FCALL setup() [L823] CALL runTest() [L802] CALL test() [L514] int splverifierCounter ; [L515] int tmp ; [L516] int tmp___0 ; [L517] int tmp___1 ; [L518] int tmp___2 ; [L521] splverifierCounter = 0 [L523] COND TRUE 1 [L525] COND TRUE splverifierCounter < 4 [L531] tmp = __VERIFIER_nondet_int() [L533] COND TRUE \read(tmp) [L535] CALL waterRise() [L431] COND TRUE waterLevel < 2 [L432] waterLevel = waterLevel + 1 [L535] RET waterRise() [L541] tmp___0 = __VERIFIER_nondet_int() [L543] COND FALSE !(\read(tmp___0)) [L551] tmp___2 = __VERIFIER_nondet_int() [L553] COND TRUE \read(tmp___2) [L566] CALL timeShift() [L590] COND FALSE !(\read(pumpRunning)) [L597] COND TRUE \read(systemActive) [L599] CALL processEnvironment() [L619] int tmp ; [L622] COND FALSE !(\read(pumpRunning)) [L637] FCALL processEnvironment__wrappee__base() [L599] RET processEnvironment() [L605] CALL __utac_acc__Specification3_spec__1() [L870] int tmp ; [L871] int tmp___0 ; [L872] int tmp___1 ; [L876] CALL, EXPR isMethaneLevelCritical() [L452] int retValue_acc ; [L455] retValue_acc = methaneLevelCritical [L456] return (retValue_acc); [L876] RET, EXPR isMethaneLevelCritical() [L876] tmp = isMethaneLevelCritical() [L878] COND FALSE !(\read(tmp)) [L882] CALL, EXPR getWaterLevel() [L484] int retValue_acc ; [L487] retValue_acc = waterLevel [L488] return (retValue_acc); [L882] RET, EXPR getWaterLevel() [L882] tmp___0 = getWaterLevel() [L884] COND TRUE tmp___0 == 2 [L886] CALL, EXPR isPumpRunning() [L671] int retValue_acc ; [L674] retValue_acc = pumpRunning [L675] return (retValue_acc); [L886] RET, EXPR isPumpRunning() [L886] tmp___1 = isPumpRunning() [L888] COND FALSE !(\read(tmp___1)) [L892] CALL __automaton_fail() [L506] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 609 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 37.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 13.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1187 SDtfs, 1665 SDslu, 1092 SDs, 0 SdLazy, 2443 SolverSat, 459 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=501occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 272 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 22.7s InterpolantComputationTime, 997 NumberOfCodeBlocks, 997 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 816 ConstructedInterpolants, 0 QuantifiedInterpolants, 325498 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...