/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=0.2 --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_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:07:25,439 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:07:25,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:07:25,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:07:25,471 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:07:25,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:07:25,474 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:07:25,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:07:25,478 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:07:25,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:07:25,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:07:25,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:07:25,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:07:25,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:07:25,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:07:25,493 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:07:25,494 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:07:25,495 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:07:25,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:07:25,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:07:25,504 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:07:25,506 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:07:25,510 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:07:25,511 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:07:25,517 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:07:25,518 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:07:25,518 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:07:25,522 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:07:25,523 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:07:25,524 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:07:25,524 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:07:25,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:07:25,526 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:07:25,528 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:07:25,529 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:07:25,529 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:07:25,530 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:07:25,531 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:07:25,531 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:07:25,532 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:07:25,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:07:25,544 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 04:07:25,597 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:07:25,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:07:25,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:07:25,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:07:25,602 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:07:25,602 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:07:25,602 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:07:25,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:07:25,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:07:25,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:07:25,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:07:25,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:07:25,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:07:25,605 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:07:25,605 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:07:25,605 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:07:25,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:07:25,606 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:07:25,606 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:07:25,606 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:07:25,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:07:25,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:07:25,607 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:07:25,607 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:07:25,607 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:07:25,607 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:07:25,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:07:25,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:07:25,608 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:07:25,608 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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;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=0.2;log-additional-information=true; [2020-09-25 04:07:26,115 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:07:26,144 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:07:26,149 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:07:26,151 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:07:26,151 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:07:26,152 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2020-09-25 04:07:26,247 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9eaa9a733/ce594e890be240baa4c060b80649afd0/FLAG98f92dd6e [2020-09-25 04:07:26,867 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:07:26,871 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product43.cil.c [2020-09-25 04:07:26,894 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9eaa9a733/ce594e890be240baa4c060b80649afd0/FLAG98f92dd6e [2020-09-25 04:07:27,128 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9eaa9a733/ce594e890be240baa4c060b80649afd0 [2020-09-25 04:07:27,141 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:07:27,146 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:07:27,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:07:27,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:07:27,151 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:07:27,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:07:27" (1/1) ... [2020-09-25 04:07:27,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:27, skipping insertion in model container [2020-09-25 04:07:27,157 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:07:27" (1/1) ... [2020-09-25 04:07:27,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:07:27,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:07:27,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:07:27,781 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:07:27,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:07:27,915 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:07:27,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:27 WrapperNode [2020-09-25 04:07:27,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:07:27,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:07:27,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:07:27,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:07:27,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:27" (1/1) ... [2020-09-25 04:07:27,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:27" (1/1) ... [2020-09-25 04:07:27,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:27" (1/1) ... [2020-09-25 04:07:27,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:27" (1/1) ... [2020-09-25 04:07:27,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:27" (1/1) ... [2020-09-25 04:07:28,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:27" (1/1) ... [2020-09-25 04:07:28,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:27" (1/1) ... [2020-09-25 04:07:28,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:07:28,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:07:28,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:07:28,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:07:28,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:27" (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 04:07:28,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:07:28,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:07:28,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 04:07:28,140 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 04:07:28,140 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 04:07:28,141 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 04:07:28,141 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 04:07:28,141 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:07:28,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 04:07:28,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 04:07:28,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 04:07:28,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 04:07:28,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 04:07:28,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 04:07:28,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 04:07:28,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 04:07:28,143 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 04:07:28,143 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 04:07:28,143 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 04:07:28,144 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 04:07:28,144 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 04:07:28,144 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 04:07:28,144 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 04:07:28,144 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-25 04:07:28,145 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 04:07:28,145 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 04:07:28,145 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 04:07:28,145 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 04:07:28,145 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 04:07:28,145 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 04:07:28,146 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 04:07:28,146 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 04:07:28,146 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 04:07:28,146 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 04:07:28,146 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 04:07:28,146 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 04:07:28,147 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 04:07:28,147 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 04:07:28,147 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 04:07:28,147 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:07:28,147 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 04:07:28,147 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 04:07:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 04:07:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 04:07:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 04:07:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 04:07:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 04:07:28,148 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 04:07:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 04:07:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 04:07:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 04:07:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 04:07:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 04:07:28,149 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 04:07:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:07:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 04:07:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 04:07:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 04:07:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 04:07:28,150 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 04:07:28,151 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 04:07:28,151 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 04:07:28,151 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 04:07:28,151 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 04:07:28,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 04:07:28,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 04:07:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 04:07:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 04:07:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 04:07:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 04:07:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 04:07:28,152 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 04:07:28,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 04:07:28,153 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 04:07:28,153 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 04:07:28,153 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 04:07:28,153 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 04:07:28,153 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 04:07:28,154 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 04:07:28,154 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 04:07:28,154 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 04:07:28,154 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 04:07:28,154 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 04:07:28,155 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 04:07:28,155 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 04:07:28,155 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 04:07:28,155 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 04:07:28,155 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-25 04:07:28,155 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 04:07:28,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:07:28,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 04:07:28,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:07:29,481 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:07:29,482 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 04:07:29,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:07:29 BoogieIcfgContainer [2020-09-25 04:07:29,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:07:29,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:07:29,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:07:29,496 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:07:29,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:07:27" (1/3) ... [2020-09-25 04:07:29,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@418b45c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:07:29, skipping insertion in model container [2020-09-25 04:07:29,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:07:27" (2/3) ... [2020-09-25 04:07:29,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@418b45c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:07:29, skipping insertion in model container [2020-09-25 04:07:29,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:07:29" (3/3) ... [2020-09-25 04:07:29,501 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product43.cil.c [2020-09-25 04:07:29,513 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:07:29,526 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:07:29,550 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:07:29,586 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:07:29,586 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:07:29,586 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:07:29,587 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:07:29,587 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:07:29,587 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:07:29,587 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:07:29,587 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:07:29,619 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states. [2020-09-25 04:07:29,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 04:07:29,639 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:07:29,640 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 04:07:29,641 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:07:29,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:07:29,650 INFO L82 PathProgramCache]: Analyzing trace with hash -377200977, now seen corresponding path program 1 times [2020-09-25 04:07:29,663 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:07:29,663 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1179183037] [2020-09-25 04:07:29,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:07:30,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:30,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:30,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:32,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:35,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:35,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 04:07:35,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:07:35,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 04:07:35,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:35,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:35,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:35,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 04:07:35,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:35,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 04:07:35,521 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:07:35,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:07:35,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:35,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:35,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:35,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:07:35,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:35,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-09-25 04:07:35,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:35,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:35,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:35,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:35,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:35,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:35,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:07:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:35,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:35,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:35,803 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:35,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:35,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:35,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:35,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:35,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:35,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:35,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:35,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:35,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:07:35,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:35,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:35,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:35,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:35,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:35,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 04:07:35,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:35,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:35,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:35,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:35,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:35,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:35,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:07:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:35,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:35,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:35,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:35,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:35,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:07:35,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:35,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:35,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:35,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:35,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:35,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:35,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:07:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:35,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:35,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:35,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:35,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:35,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:35,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:35,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:35,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:35,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:35,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:35,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:35,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 04:07:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:35,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:35,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:35,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:35,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:35,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:35,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:35,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:35,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:35,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:35,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:35,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:35,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:07:35,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:35,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:35,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:35,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:35,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:35,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:35,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:35,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:35,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:35,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:35,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:35,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:35,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 04:07:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:35,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:35,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:35,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:35,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:35,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:07:35,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:35,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:35,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:35,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:35,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:35,873 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:35,955 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 04:07:35,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1179183037] [2020-09-25 04:07:35,959 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:07:35,959 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 04:07:35,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920400878] [2020-09-25 04:07:35,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 04:07:35,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:07:35,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 04:07:35,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 04:07:35,992 INFO L87 Difference]: Start difference. First operand 315 states. Second operand 3 states. [2020-09-25 04:07:37,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:07:37,354 INFO L93 Difference]: Finished difference Result 497 states and 588 transitions. [2020-09-25 04:07:37,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 04:07:37,357 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 04:07:37,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:07:37,379 INFO L225 Difference]: With dead ends: 497 [2020-09-25 04:07:37,379 INFO L226 Difference]: Without dead ends: 307 [2020-09-25 04:07:37,386 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 04:07:37,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2020-09-25 04:07:37,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 264. [2020-09-25 04:07:37,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-09-25 04:07:37,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 286 transitions. [2020-09-25 04:07:37,502 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 286 transitions. Word has length 153 [2020-09-25 04:07:37,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:07:37,503 INFO L479 AbstractCegarLoop]: Abstraction has 264 states and 286 transitions. [2020-09-25 04:07:37,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 04:07:37,503 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 286 transitions. [2020-09-25 04:07:37,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 04:07:37,507 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:07:37,508 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 04:07:37,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:07:37,508 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:07:37,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:07:37,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1698755128, now seen corresponding path program 1 times [2020-09-25 04:07:37,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:07:37,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [864151709] [2020-09-25 04:07:37,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:07:37,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:37,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:37,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:39,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:42,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:42,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 04:07:42,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 04:07:42,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 04:07:42,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:42,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:42,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:42,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 04:07:42,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 04:07:42,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:43,019 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:07:43,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:07:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:43,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:43,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:43,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:07:43,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:43,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 04:07:43,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:43,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:43,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:43,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:43,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:43,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:43,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:07:43,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:43,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:43,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:43,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:43,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:43,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:43,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:43,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:43,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:43,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:43,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:43,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:43,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:07:43,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:43,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:43,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:43,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:43,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:43,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:43,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:43,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:43,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:43,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:43,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:43,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:43,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:07:43,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:43,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:43,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:43,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:43,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:43,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:07:43,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:43,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:43,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:43,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:43,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:43,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:43,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:07:43,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:43,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:43,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:43,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:43,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:43,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:43,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:43,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:43,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:43,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:43,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:43,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:43,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 04:07:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:43,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:43,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:43,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:43,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:43,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:43,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:43,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:43,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:43,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:43,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:43,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:43,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 04:07:43,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:43,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:43,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:43,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:43,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:43,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:43,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:43,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:43,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:43,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:43,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:43,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:43,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 04:07:43,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:43,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:43,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:43,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:43,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:43,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:43,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:43,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:43,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:43,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:43,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:43,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:43,265 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 04:07:43,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [864151709] [2020-09-25 04:07:43,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:07:43,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:07:43,267 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583501308] [2020-09-25 04:07:43,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:07:43,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:07:43,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:07:43,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:07:43,270 INFO L87 Difference]: Start difference. First operand 264 states and 286 transitions. Second operand 4 states. [2020-09-25 04:07:43,877 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:07:44,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:07:44,876 INFO L93 Difference]: Finished difference Result 405 states and 453 transitions. [2020-09-25 04:07:44,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:07:44,878 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 04:07:44,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:07:44,884 INFO L225 Difference]: With dead ends: 405 [2020-09-25 04:07:44,886 INFO L226 Difference]: Without dead ends: 290 [2020-09-25 04:07:44,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 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 04:07:44,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-09-25 04:07:44,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 254. [2020-09-25 04:07:44,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2020-09-25 04:07:44,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 273 transitions. [2020-09-25 04:07:44,966 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 273 transitions. Word has length 154 [2020-09-25 04:07:44,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:07:44,968 INFO L479 AbstractCegarLoop]: Abstraction has 254 states and 273 transitions. [2020-09-25 04:07:44,968 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:07:44,968 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 273 transitions. [2020-09-25 04:07:44,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 04:07:44,978 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:07:44,979 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] [2020-09-25 04:07:44,979 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:07:44,979 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:07:44,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:07:44,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1272338923, now seen corresponding path program 1 times [2020-09-25 04:07:44,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:07:44,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [336167710] [2020-09-25 04:07:44,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:07:45,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:45,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:45,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:48,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:48,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 04:07:48,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 04:07:48,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3663 [2020-09-25 04:07:48,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:48,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:48,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:07:48,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 04:07:48,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 04:07:48,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:48,987 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:07:48,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:07:49,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:49,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:49,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:49,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:07:49,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:49,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-09-25 04:07:49,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:49,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:49,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:49,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:49,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 04:07:49,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:49,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:07:49,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:49,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:49,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:49,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:49,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:49,283 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:49,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:49,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:49,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:49,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:49,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:07:49,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:49,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:07:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:49,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:49,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:49,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:49,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:49,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:49,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:49,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:49,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:49,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:49,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:07:49,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:49,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:07:49,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:49,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:49,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:49,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:49,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:49,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 04:07:49,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:49,303 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:49,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:49,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:49,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:07:49,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:49,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:07:49,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:49,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:49,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:49,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:49,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:49,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:49,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:49,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:49,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:49,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:49,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:07:49,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:49,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 04:07:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:49,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:49,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:49,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:49,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:49,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:49,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:49,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:49,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:49,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:49,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:49,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:49,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 04:07:49,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:49,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:49,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:49,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:49,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:49,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:49,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:49,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:49,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:49,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:49,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:49,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:49,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 04:07:49,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:49,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:49,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:49,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:49,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:49,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:49,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:49,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:49,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:49,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:49,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:49,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:49,363 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 04:07:49,364 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [336167710] [2020-09-25 04:07:49,364 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:07:49,364 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 04:07:49,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068183249] [2020-09-25 04:07:49,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 04:07:49,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:07:49,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 04:07:49,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 04:07:49,366 INFO L87 Difference]: Start difference. First operand 254 states and 273 transitions. Second operand 4 states. [2020-09-25 04:07:49,935 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:07:51,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:07:51,858 INFO L93 Difference]: Finished difference Result 590 states and 668 transitions. [2020-09-25 04:07:51,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 04:07:51,859 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-25 04:07:51,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:07:51,864 INFO L225 Difference]: With dead ends: 590 [2020-09-25 04:07:51,865 INFO L226 Difference]: Without dead ends: 446 [2020-09-25 04:07:51,866 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:07:51,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2020-09-25 04:07:51,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 386. [2020-09-25 04:07:51,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-09-25 04:07:51,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 423 transitions. [2020-09-25 04:07:51,932 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 423 transitions. Word has length 163 [2020-09-25 04:07:51,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:07:51,932 INFO L479 AbstractCegarLoop]: Abstraction has 386 states and 423 transitions. [2020-09-25 04:07:51,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 04:07:51,933 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 423 transitions. [2020-09-25 04:07:51,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-25 04:07:51,935 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:07:51,935 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 04:07:51,936 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:07:51,936 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:07:51,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:07:51,936 INFO L82 PathProgramCache]: Analyzing trace with hash 834967554, now seen corresponding path program 1 times [2020-09-25 04:07:51,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:07:51,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [527784596] [2020-09-25 04:07:51,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:07:51,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:52,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:52,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:53,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:54,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:57,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:57,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 04:07:57,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 04:07:57,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-09-25 04:07:57,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:57,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:57,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:07:57,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 04:07:57,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:07:57,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:57,361 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:07:57,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:07:57,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:57,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:57,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:57,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:07:57,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:57,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 04:07:57,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:57,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:57,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:57,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:57,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:57,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:57,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:07:57,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:57,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:57,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:57,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:57,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:57,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:07:57,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:57,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:57,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:57,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:57,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:57,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:57,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:07:57,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:57,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:57,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:57,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:57,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:57,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:57,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:57,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:57,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:57,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:57,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:57,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:57,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:07:57,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:57,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:57,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:57,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:57,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:57,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:07:57,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:57,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:57,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:57,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:57,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:57,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:57,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:07:57,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:57,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:57,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:57,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:57,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:57,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:07:57,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:57,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:57,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:57,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:57,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:57,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:57,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-25 04:07:57,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:57,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:57,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:57,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 04:07:57,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:57,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:07:57,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:57,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:57,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:07:57,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 04:07:57,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 04:07:57,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:57,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:07:57,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:57,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:57,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:57,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:07:57,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:57,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:07:57,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:57,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:57,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:07:57,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:07:57,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:07:57,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:57,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 04:07:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:57,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:57,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:57,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:57,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:57,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:57,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:57,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:57,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:57,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:57,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:57,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:57,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 04:07:57,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:57,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:57,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:57,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:57,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:57,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:07:57,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:57,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:57,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:57,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:57,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:57,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:57,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-25 04:07:57,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:07:57,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:07:57,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:07:57,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:07:57,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:07:57,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:07:57,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:07:57,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:07:57,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:07:57,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:07:57,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:07:57,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:07:57,647 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 04:07:57,648 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [527784596] [2020-09-25 04:07:57,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:07:57,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 04:07:57,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307733953] [2020-09-25 04:07:57,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 04:07:57,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:07:57,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 04:07:57,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:07:57,651 INFO L87 Difference]: Start difference. First operand 386 states and 423 transitions. Second operand 6 states. [2020-09-25 04:07:58,201 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 04:07:59,985 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:08:00,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:08:00,724 INFO L93 Difference]: Finished difference Result 998 states and 1153 transitions. [2020-09-25 04:08:00,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 04:08:00,725 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2020-09-25 04:08:00,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:08:00,734 INFO L225 Difference]: With dead ends: 998 [2020-09-25 04:08:00,734 INFO L226 Difference]: Without dead ends: 722 [2020-09-25 04:08:00,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:08:00,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2020-09-25 04:08:00,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 629. [2020-09-25 04:08:00,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2020-09-25 04:08:00,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 692 transitions. [2020-09-25 04:08:00,824 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 692 transitions. Word has length 171 [2020-09-25 04:08:00,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:08:00,825 INFO L479 AbstractCegarLoop]: Abstraction has 629 states and 692 transitions. [2020-09-25 04:08:00,825 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 04:08:00,825 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 692 transitions. [2020-09-25 04:08:00,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 04:08:00,827 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:08:00,828 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] [2020-09-25 04:08:00,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:08:00,828 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:08:00,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:08:00,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1418606569, now seen corresponding path program 1 times [2020-09-25 04:08:00,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:08:00,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853747940] [2020-09-25 04:08:00,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:08:00,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:08:00,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:08:02,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:08:02,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 04:08:02,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:08:02,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1708 [2020-09-25 04:08:02,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:08:02,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:08:02,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 04:08:02,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 04:08:02,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 04:08:02,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:08:02,909 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 04:08:02,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:08:02,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:08:02,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:08:03,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:08:03,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 04:08:03,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:08:03,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-09-25 04:08:03,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:08:03,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:08:03,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:08:03,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:08:03,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 04:08:03,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:08:03,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 04:08:03,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:08:03,226 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:08:03,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:08:03,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:08:03,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:08:03,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:08:03,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:08:03,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:08:03,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:08:03,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:08:03,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:08:03,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:08:03,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 04:08:03,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:08:03,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:08:03,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:08:03,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:08:03,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:08:03,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:08:03,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:08:03,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:08:03,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:08:03,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:08:03,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:08:03,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:08:03,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 04:08:03,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:08:03,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:08:03,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:08:03,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:08:03,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:08:03,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:08:03,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:08:03,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:08:03,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:08:03,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:08:03,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:08:03,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:08:03,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 04:08:03,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:08:03,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:08:03,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:08:03,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:08:03,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:08:03,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:08:03,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:08:03,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:08:03,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:08:03,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:08:03,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 04:08:03,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:08:03,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 04:08:03,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:08:03,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:08:03,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:08:03,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 04:08:03,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:08:03,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 04:08:03,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:08:03,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:08:03,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:08:03,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:08:03,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:08:03,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:08:03,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 04:08:03,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:08:03,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:08:03,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:08:03,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:08:03,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:08:03,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:08:03,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:08:03,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:08:03,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 04:08:03,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:08:03,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:08:03,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:08:03,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 04:08:03,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:08:03,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:08:03,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:08:03,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:08:03,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:08:03,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:08:03,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:08:03,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:08:03,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:08:03,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:08:03,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 04:08:03,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:08:03,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 04:08:03,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:08:03,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:08:03,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:08:03,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:08:03,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:08:03,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:08:03,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:08:03,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:08:03,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:08:03,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 04:08:03,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:08:03,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:08:03,391 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 04:08:03,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853747940] [2020-09-25 04:08:03,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:08:03,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 04:08:03,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183650176] [2020-09-25 04:08:03,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 04:08:03,393 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:08:03,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 04:08:03,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 04:08:03,394 INFO L87 Difference]: Start difference. First operand 629 states and 692 transitions. Second operand 10 states. [2020-09-25 04:08:03,961 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:08:05,588 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:08:05,929 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:08:06,318 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:08:06,688 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 04:08:07,003 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 04:08:07,335 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:08:07,655 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 04:08:08,185 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 04:08:09,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:08:09,670 INFO L93 Difference]: Finished difference Result 1696 states and 1989 transitions. [2020-09-25 04:08:09,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 04:08:09,671 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-09-25 04:08:09,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:08:09,687 INFO L225 Difference]: With dead ends: 1696 [2020-09-25 04:08:09,687 INFO L226 Difference]: Without dead ends: 1177 [2020-09-25 04:08:09,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 04:08:09,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1177 states. [2020-09-25 04:08:09,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1177 to 1087. [2020-09-25 04:08:09,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1087 states. [2020-09-25 04:08:09,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 1225 transitions. [2020-09-25 04:08:09,849 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 1225 transitions. Word has length 172 [2020-09-25 04:08:09,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:08:09,850 INFO L479 AbstractCegarLoop]: Abstraction has 1087 states and 1225 transitions. [2020-09-25 04:08:09,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 04:08:09,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 1225 transitions. [2020-09-25 04:08:09,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 04:08:09,854 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:08:09,855 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] [2020-09-25 04:08:09,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:08:09,855 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:08:09,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:08:09,856 INFO L82 PathProgramCache]: Analyzing trace with hash -1797665662, now seen corresponding path program 1 times [2020-09-25 04:08:09,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:08:09,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1210078295] [2020-09-25 04:08:09,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:08:09,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 04:08:09,919 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 04:08:09,919 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 04:08:09,925 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:08:09,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 04:08:09 BoogieIcfgContainer [2020-09-25 04:08:09,953 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 04:08:09,955 INFO L168 Benchmark]: Toolchain (without parser) took 42812.55 ms. Allocated memory was 114.3 MB in the beginning and 582.0 MB in the end (delta: 467.7 MB). Free memory was 71.2 MB in the beginning and 218.4 MB in the end (delta: -147.2 MB). Peak memory consumption was 320.4 MB. Max. memory is 7.1 GB. [2020-09-25 04:08:09,956 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 114.3 MB. Free memory was 89.8 MB in the beginning and 89.7 MB in the end (delta: 105.1 kB). Peak memory consumption was 105.1 kB. Max. memory is 7.1 GB. [2020-09-25 04:08:09,957 INFO L168 Benchmark]: CACSL2BoogieTranslator took 769.84 ms. Allocated memory was 114.3 MB in the beginning and 167.8 MB in the end (delta: 53.5 MB). Free memory was 70.6 MB in the beginning and 143.5 MB in the end (delta: -72.9 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. [2020-09-25 04:08:09,958 INFO L168 Benchmark]: Boogie Preprocessor took 105.79 ms. Allocated memory is still 167.8 MB. Free memory was 143.5 MB in the beginning and 139.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-25 04:08:09,959 INFO L168 Benchmark]: RCFGBuilder took 1466.76 ms. Allocated memory was 167.8 MB in the beginning and 187.7 MB in the end (delta: 19.9 MB). Free memory was 139.3 MB in the beginning and 106.8 MB in the end (delta: 32.6 MB). Peak memory consumption was 55.2 MB. Max. memory is 7.1 GB. [2020-09-25 04:08:09,960 INFO L168 Benchmark]: TraceAbstraction took 40461.51 ms. Allocated memory was 187.7 MB in the beginning and 582.0 MB in the end (delta: 394.3 MB). Free memory was 106.8 MB in the beginning and 218.4 MB in the end (delta: -111.7 MB). Peak memory consumption was 282.6 MB. Max. memory is 7.1 GB. [2020-09-25 04:08:09,964 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 114.3 MB. Free memory was 89.8 MB in the beginning and 89.7 MB in the end (delta: 105.1 kB). Peak memory consumption was 105.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 769.84 ms. Allocated memory was 114.3 MB in the beginning and 167.8 MB in the end (delta: 53.5 MB). Free memory was 70.6 MB in the beginning and 143.5 MB in the end (delta: -72.9 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.79 ms. Allocated memory is still 167.8 MB. Free memory was 143.5 MB in the beginning and 139.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1466.76 ms. Allocated memory was 167.8 MB in the beginning and 187.7 MB in the end (delta: 19.9 MB). Free memory was 139.3 MB in the beginning and 106.8 MB in the end (delta: 32.6 MB). Peak memory consumption was 55.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 40461.51 ms. Allocated memory was 187.7 MB in the beginning and 582.0 MB in the end (delta: 394.3 MB). Free memory was 106.8 MB in the beginning and 218.4 MB in the end (delta: -111.7 MB). Peak memory consumption was 282.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 148]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L359] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L597] int pumpRunning = 0; [L598] int systemActive = 1; [L849] int waterLevel = 1; [L850] int methaneLevelCritical = 0; [L121] int retValue_acc ; [L122] int tmp ; [L126] FCALL select_helpers() [L127] FCALL select_features() [L128] CALL, EXPR valid_product() [L582] int retValue_acc ; [L585] retValue_acc = 1 [L586] return (retValue_acc); [L128] RET, EXPR valid_product() [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) [L132] FCALL setup() [L133] CALL runTest() [L112] CALL test() [L783] int splverifierCounter ; [L784] int tmp ; [L785] int tmp___0 ; [L786] int tmp___1 ; [L787] int tmp___2 ; [L790] splverifierCounter = 0 [L792] COND TRUE 1 [L794] COND TRUE splverifierCounter < 4 [L800] tmp = __VERIFIER_nondet_int() [L802] COND TRUE \read(tmp) [L804] CALL waterRise() [L867] COND TRUE waterLevel < 2 [L868] waterLevel = waterLevel + 1 [L804] RET waterRise() [L810] tmp___0 = __VERIFIER_nondet_int() [L812] COND FALSE !(\read(tmp___0)) [L820] tmp___2 = __VERIFIER_nondet_int() [L822] COND FALSE !(\read(tmp___2)) [L826] tmp___1 = __VERIFIER_nondet_int() [L828] COND TRUE \read(tmp___1) [L830] CALL stopSystem() [L770] COND FALSE !(\read(pumpRunning)) [L777] systemActive = 0 [L830] RET stopSystem() [L837] CALL timeShift() [L604] COND FALSE !(\read(pumpRunning)) [L611] COND FALSE !(\read(systemActive)) [L619] CALL __utac_acc__Specification3_spec__1() [L157] int tmp ; [L158] int tmp___0 ; [L159] int tmp___1 ; [L163] CALL, EXPR isMethaneLevelCritical() [L888] int retValue_acc ; [L891] retValue_acc = methaneLevelCritical [L892] return (retValue_acc); [L163] RET, EXPR isMethaneLevelCritical() [L163] tmp = isMethaneLevelCritical() [L165] COND FALSE !(\read(tmp)) [L169] CALL, EXPR getWaterLevel() [L920] int retValue_acc ; [L923] retValue_acc = waterLevel [L924] return (retValue_acc); [L169] RET, EXPR getWaterLevel() [L169] tmp___0 = getWaterLevel() [L171] COND TRUE tmp___0 == 2 [L173] CALL, EXPR isPumpRunning() [L703] int retValue_acc ; [L706] retValue_acc = pumpRunning [L707] return (retValue_acc); [L173] RET, EXPR isPumpRunning() [L173] tmp___1 = isPumpRunning() [L175] COND FALSE !(\read(tmp___1)) [L179] CALL __automaton_fail() [L148] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 627 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 40.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 14.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1264 SDtfs, 1820 SDslu, 1074 SDs, 0 SdLazy, 2705 SolverSat, 595 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 99 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1087occurred 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: 0.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 322 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 23.8s InterpolantComputationTime, 990 NumberOfCodeBlocks, 990 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 808 ConstructedInterpolants, 0 QuantifiedInterpolants, 330427 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...