/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 SequenceOfStatements --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=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product30.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 12:42:25,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 12:42:25,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 12:42:25,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 12:42:25,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 12:42:25,418 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 12:42:25,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 12:42:25,423 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 12:42:25,426 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 12:42:25,430 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 12:42:25,431 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 12:42:25,432 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 12:42:25,432 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 12:42:25,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 12:42:25,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 12:42:25,439 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 12:42:25,440 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 12:42:25,441 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 12:42:25,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 12:42:25,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 12:42:25,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 12:42:25,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 12:42:25,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 12:42:25,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 12:42:25,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 12:42:25,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 12:42:25,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 12:42:25,468 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 12:42:25,474 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 12:42:25,475 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 12:42:25,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 12:42:25,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 12:42:25,477 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 12:42:25,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 12:42:25,478 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 12:42:25,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 12:42:25,479 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 12:42:25,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 12:42:25,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 12:42:25,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 12:42:25,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 12:42:25,487 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 [2020-10-13 12:42:25,524 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 12:42:25,524 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 12:42:25,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 12:42:25,526 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 12:42:25,526 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 12:42:25,526 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 12:42:25,526 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 12:42:25,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 12:42:25,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 12:42:25,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 12:42:25,528 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 12:42:25,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 12:42:25,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 12:42:25,529 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 12:42:25,529 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 12:42:25,529 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 12:42:25,529 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 12:42:25,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 12:42:25,530 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 12:42:25,530 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 12:42:25,530 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 12:42:25,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 12:42:25,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 12:42:25,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 12:42:25,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 12:42:25,531 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 12:42:25,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 12:42:25,532 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 12:42:25,532 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 12:42:25,532 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 -> SequenceOfStatements 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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 12:42:25,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 12:42:25,863 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 12:42:25,867 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 12:42:25,869 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 12:42:25,869 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 12:42:25,869 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product30.cil.c [2020-10-13 12:42:25,931 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0c735b91c/3bc4cd0ae6ea492a89588c1815a19382/FLAG6dd5d5258 [2020-10-13 12:42:26,459 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 12:42:26,460 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product30.cil.c [2020-10-13 12:42:26,472 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0c735b91c/3bc4cd0ae6ea492a89588c1815a19382/FLAG6dd5d5258 [2020-10-13 12:42:26,766 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0c735b91c/3bc4cd0ae6ea492a89588c1815a19382 [2020-10-13 12:42:26,776 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 12:42:26,778 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 12:42:26,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 12:42:26,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 12:42:26,784 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 12:42:26,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:42:26" (1/1) ... [2020-10-13 12:42:26,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32cd08e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:42:26, skipping insertion in model container [2020-10-13 12:42:26,788 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:42:26" (1/1) ... [2020-10-13 12:42:26,797 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 12:42:26,858 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 12:42:27,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:42:27,238 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 12:42:27,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:42:27,411 INFO L208 MainTranslator]: Completed translation [2020-10-13 12:42:27,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:42:27 WrapperNode [2020-10-13 12:42:27,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 12:42:27,413 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 12:42:27,413 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 12:42:27,413 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 12:42:27,424 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:42:27" (1/1) ... [2020-10-13 12:42:27,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:42:27" (1/1) ... [2020-10-13 12:42:27,441 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:42:27" (1/1) ... [2020-10-13 12:42:27,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:42:27" (1/1) ... [2020-10-13 12:42:27,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:42:27" (1/1) ... [2020-10-13 12:42:27,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:42:27" (1/1) ... [2020-10-13 12:42:27,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:42:27" (1/1) ... [2020-10-13 12:42:27,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 12:42:27,530 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 12:42:27,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 12:42:27,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 12:42:27,531 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:42:27" (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 [2020-10-13 12:42:27,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 12:42:27,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 12:42:27,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-13 12:42:27,601 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-13 12:42:27,602 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-13 12:42:27,602 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-13 12:42:27,602 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-13 12:42:27,603 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-13 12:42:27,603 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-13 12:42:27,603 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-13 12:42:27,604 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-13 12:42:27,604 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-13 12:42:27,604 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-13 12:42:27,604 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-13 12:42:27,604 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 12:42:27,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-13 12:42:27,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-13 12:42:27,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-13 12:42:27,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-13 12:42:27,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-13 12:42:27,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-13 12:42:27,606 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-13 12:42:27,607 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-13 12:42:27,607 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-13 12:42:27,608 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-13 12:42:27,609 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-13 12:42:27,609 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-13 12:42:27,610 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-13 12:42:27,610 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-13 12:42:27,610 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-13 12:42:27,611 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-13 12:42:27,611 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-13 12:42:27,611 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-13 12:42:27,611 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-13 12:42:27,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-13 12:42:27,611 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-13 12:42:27,611 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-13 12:42:27,612 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-13 12:42:27,612 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-13 12:42:27,612 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-13 12:42:27,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 12:42:27,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 12:42:27,612 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-13 12:42:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-13 12:42:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-13 12:42:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-13 12:42:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-13 12:42:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-13 12:42:27,613 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-13 12:42:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-13 12:42:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 12:42:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-13 12:42:27,614 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-13 12:42:27,615 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-13 12:42:27,615 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-13 12:42:27,615 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-13 12:42:27,615 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-13 12:42:27,615 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-13 12:42:27,615 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-13 12:42:27,616 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-13 12:42:27,616 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-13 12:42:27,616 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 12:42:27,616 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-13 12:42:27,616 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 12:42:27,617 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 12:42:27,617 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-13 12:42:27,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 12:42:27,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 12:42:27,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 12:42:27,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 12:42:27,618 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-13 12:42:27,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 12:42:27,620 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-13 12:42:27,620 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-13 12:42:27,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 12:42:27,620 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-13 12:42:27,620 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-13 12:42:27,620 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-13 12:42:27,621 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-13 12:42:27,621 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-13 12:42:27,621 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-13 12:42:27,621 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-13 12:42:27,622 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-13 12:42:27,622 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-13 12:42:27,622 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-13 12:42:27,622 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-13 12:42:27,623 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-13 12:42:27,623 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-13 12:42:27,623 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-13 12:42:27,623 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-13 12:42:27,623 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-13 12:42:27,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 12:42:27,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 12:42:27,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 12:42:28,578 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 12:42:28,579 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-13 12:42:28,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:42:28 BoogieIcfgContainer [2020-10-13 12:42:28,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 12:42:28,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 12:42:28,586 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 12:42:28,589 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 12:42:28,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:42:26" (1/3) ... [2020-10-13 12:42:28,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e61839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:42:28, skipping insertion in model container [2020-10-13 12:42:28,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:42:27" (2/3) ... [2020-10-13 12:42:28,591 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e61839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:42:28, skipping insertion in model container [2020-10-13 12:42:28,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:42:28" (3/3) ... [2020-10-13 12:42:28,593 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product30.cil.c [2020-10-13 12:42:28,603 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 12:42:28,611 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 12:42:28,625 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 12:42:28,651 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 12:42:28,651 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 12:42:28,651 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 12:42:28,651 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 12:42:28,652 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 12:42:28,652 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 12:42:28,652 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 12:42:28,652 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 12:42:28,674 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states. [2020-10-13 12:42:28,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-13 12:42:28,685 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:42:28,686 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] [2020-10-13 12:42:28,687 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:42:28,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:42:28,693 INFO L82 PathProgramCache]: Analyzing trace with hash -48518306, now seen corresponding path program 1 times [2020-10-13 12:42:28,702 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:42:28,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1548712745] [2020-10-13 12:42:28,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:42:28,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:29,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:29,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:30,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:31,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:31,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 12:42:31,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:42:31,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2172 [2020-10-13 12:42:31,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:31,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:31,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-13 12:42:31,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:31,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 12:42:31,610 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:42:31,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:42:31,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:31,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:31,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:31,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:31,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:31,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 12:42:31,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:31,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:31,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:31,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:31,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:42:31,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:42:31,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:31,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:31,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:31,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:31,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:31,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:31,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:31,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:31,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:31,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:31,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:31,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:42:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:31,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:31,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:31,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:31,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:31,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:31,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:31,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:31,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:31,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:31,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:31,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:42:31,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:31,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:31,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:31,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:31,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:31,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:42:31,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:31,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:31,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:31,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:31,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:31,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:42:31,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:31,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:31,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:31,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:31,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:31,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:31,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:31,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:31,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:31,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:31,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 12:42:31,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:31,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:31,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:31,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:31,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:31,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:31,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:31,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:31,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:31,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:31,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:31,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 12:42:31,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:31,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:31,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:31,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:31,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:31,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:31,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:31,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:31,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:31,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:31,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:31,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 12:42:31,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:31,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:31,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:31,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:31,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:31,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:42:31,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:31,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:31,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:31,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:31,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:31,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:42:31,737 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1548712745] [2020-10-13 12:42:31,739 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:42:31,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 12:42:31,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573423556] [2020-10-13 12:42:31,747 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 12:42:31,747 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:42:31,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 12:42:31,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 12:42:31,764 INFO L87 Difference]: Start difference. First operand 180 states. Second operand 3 states. [2020-10-13 12:42:33,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:42:33,001 INFO L93 Difference]: Finished difference Result 300 states and 394 transitions. [2020-10-13 12:42:33,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 12:42:33,003 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-10-13 12:42:33,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:42:33,019 INFO L225 Difference]: With dead ends: 300 [2020-10-13 12:42:33,020 INFO L226 Difference]: Without dead ends: 162 [2020-10-13 12:42:33,025 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 [2020-10-13 12:42:33,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2020-10-13 12:42:33,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 129. [2020-10-13 12:42:33,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-10-13 12:42:33,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 152 transitions. [2020-10-13 12:42:33,158 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 152 transitions. Word has length 52 [2020-10-13 12:42:33,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:42:33,159 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 152 transitions. [2020-10-13 12:42:33,159 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 12:42:33,159 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 152 transitions. [2020-10-13 12:42:33,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-13 12:42:33,172 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:42:33,173 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] [2020-10-13 12:42:33,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 12:42:33,174 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:42:33,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:42:33,181 INFO L82 PathProgramCache]: Analyzing trace with hash 224052050, now seen corresponding path program 1 times [2020-10-13 12:42:33,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:42:33,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1341052031] [2020-10-13 12:42:33,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:42:33,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:33,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:33,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:33,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:35,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:35,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-13 12:42:35,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:42:35,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2178 [2020-10-13 12:42:35,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:35,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:35,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-13 12:42:35,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:42:35,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:35,668 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:42:35,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:42:35,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:35,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:35,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:35,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:35,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:35,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 12:42:35,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:35,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:35,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:35,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:35,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:35,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:42:35,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:35,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:35,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:35,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:35,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:35,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:42:35,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:35,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:35,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:35,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:35,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:35,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:42:35,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:35,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:35,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:35,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:35,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:35,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:42:35,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:35,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:35,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:35,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:35,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:35,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:42:35,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:35,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:35,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:35,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:35,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:35,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:42:35,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:35,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:35,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:35,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:35,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:35,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:42:35,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:35,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:35,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:35,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:35,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:35,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:35,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:35,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:35,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:35,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:35,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:35,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 12:42:35,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:35,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:35,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:35,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:35,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:35,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:42:35,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:35,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:35,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:35,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:35,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:35,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 12:42:35,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:35,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:35,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:35,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:35,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:35,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:35,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:35,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:35,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:35,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:35,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:35,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 12:42:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:35,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:35,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:35,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:35,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:35,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:35,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:35,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:35,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:35,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:35,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 12:42:35,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:42:35,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1341052031] [2020-10-13 12:42:35,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:42:35,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 12:42:35,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58171512] [2020-10-13 12:42:35,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 12:42:35,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:42:35,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 12:42:35,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 12:42:35,784 INFO L87 Difference]: Start difference. First operand 129 states and 152 transitions. Second operand 4 states. [2020-10-13 12:42:36,196 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:42:37,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:42:37,055 INFO L93 Difference]: Finished difference Result 229 states and 281 transitions. [2020-10-13 12:42:37,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 12:42:37,056 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-13 12:42:37,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:42:37,059 INFO L225 Difference]: With dead ends: 229 [2020-10-13 12:42:37,059 INFO L226 Difference]: Without dead ends: 146 [2020-10-13 12:42:37,061 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 12:42:37,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-13 12:42:37,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 120. [2020-10-13 12:42:37,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-13 12:42:37,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 140 transitions. [2020-10-13 12:42:37,101 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 140 transitions. Word has length 53 [2020-10-13 12:42:37,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:42:37,102 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 140 transitions. [2020-10-13 12:42:37,102 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 12:42:37,102 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 140 transitions. [2020-10-13 12:42:37,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-13 12:42:37,104 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:42:37,104 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] [2020-10-13 12:42:37,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 12:42:37,104 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:42:37,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:42:37,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1519728538, now seen corresponding path program 1 times [2020-10-13 12:42:37,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:42:37,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [428501658] [2020-10-13 12:42:37,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:42:37,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:37,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:37,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:38,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:38,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-13 12:42:38,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:42:38,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1074 [2020-10-13 12:42:38,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:38,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 12:42:38,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:38,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-13 12:42:38,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:38,453 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:42:38,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:42:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:38,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:38,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:38,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:38,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:38,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-13 12:42:38,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:38,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:38,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:38,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:42:38,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:38,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:42:38,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:38,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:38,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:38,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:38,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:38,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:38,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:38,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:38,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:38,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:42:38,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:38,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:42:38,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:38,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:38,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:38,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:38,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:38,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:38,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:38,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:38,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:38,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:42:38,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:38,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:42:38,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:38,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:38,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:38,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:38,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:38,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:38,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:38,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:38,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:38,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:42:38,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:38,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:42:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:38,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:38,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:38,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:38,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:38,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:38,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:38,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:38,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:38,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:42:38,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:38,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 12:42:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:38,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:38,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:38,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:38,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:38,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:38,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:38,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:38,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:38,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:38,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:38,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 12:42:38,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:38,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:38,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:38,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:38,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:38,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:38,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:38,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:38,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:38,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:38,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:42:38,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 12:42:38,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:38,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:38,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:38,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:38,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:38,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:38,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:38,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:38,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:38,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:38,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:38,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:42:38,596 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [428501658] [2020-10-13 12:42:38,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:42:38,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 12:42:38,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385910334] [2020-10-13 12:42:38,597 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 12:42:38,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:42:38,598 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 12:42:38,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 12:42:38,598 INFO L87 Difference]: Start difference. First operand 120 states and 140 transitions. Second operand 4 states. [2020-10-13 12:42:38,897 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:42:39,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:42:39,713 INFO L93 Difference]: Finished difference Result 242 states and 299 transitions. [2020-10-13 12:42:39,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 12:42:39,713 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-10-13 12:42:39,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:42:39,716 INFO L225 Difference]: With dead ends: 242 [2020-10-13 12:42:39,716 INFO L226 Difference]: Without dead ends: 146 [2020-10-13 12:42:39,717 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 12:42:39,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-13 12:42:39,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 120. [2020-10-13 12:42:39,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-13 12:42:39,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 139 transitions. [2020-10-13 12:42:39,759 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 139 transitions. Word has length 58 [2020-10-13 12:42:39,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:42:39,759 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 139 transitions. [2020-10-13 12:42:39,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 12:42:39,759 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 139 transitions. [2020-10-13 12:42:39,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-13 12:42:39,761 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:42:39,761 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] [2020-10-13 12:42:39,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 12:42:39,761 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:42:39,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:42:39,762 INFO L82 PathProgramCache]: Analyzing trace with hash -531263457, now seen corresponding path program 1 times [2020-10-13 12:42:39,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:42:39,762 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2035957311] [2020-10-13 12:42:39,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:42:39,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:39,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:40,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:40,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-13 12:42:40,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:40,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 721 [2020-10-13 12:42:40,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:40,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 12:42:40,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:40,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 12:42:40,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:40,772 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:42:40,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:42:40,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:40,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:40,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:40,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:40,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:40,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 12:42:40,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:40,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:40,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:40,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:42:40,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:40,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:42:40,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:40,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:40,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:40,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:40,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:40,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:42:40,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:40,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:40,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:40,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:42:40,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:40,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:42:40,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:40,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:40,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:40,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:40,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:40,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:40,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:40,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:40,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:40,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:42:40,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:40,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:42:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:40,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:40,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:40,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:40,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:40,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:42:40,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:40,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:40,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:40,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:42:40,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:40,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:42:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:40,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:40,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:40,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:40,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:40,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:42:40,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:40,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:40,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:40,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:42:40,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:40,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-13 12:42:40,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:40,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:40,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:40,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 12:42:40,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:40,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:42:40,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:40,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:40,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:40,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 12:42:40,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:40,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:42:40,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:40,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:40,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:40,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 12:42:40,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:40,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:40,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:40,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:40,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:40,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:40,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:40,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:42:40,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:40,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:40,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:40,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:40,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:40,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:42:40,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:40,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:40,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:40,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:40,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:40,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-13 12:42:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:40,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:40,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:40,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:40,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:40,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:40,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:40,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:40,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:40,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:42:40,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:40,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-13 12:42:40,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:40,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:40,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:40,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:40,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:40,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:42:40,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:40,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:42:40,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:40,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:42:40,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:40,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 12:42:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:40,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:40,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:40,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:40,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:40,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:40,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:40,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:40,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:40,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:40,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:41,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:42:41,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2035957311] [2020-10-13 12:42:41,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:42:41,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 12:42:41,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916949890] [2020-10-13 12:42:41,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:42:41,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:42:41,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:42:41,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:42:41,008 INFO L87 Difference]: Start difference. First operand 120 states and 139 transitions. Second operand 8 states. [2020-10-13 12:42:41,378 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:42:43,063 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:42:43,368 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:42:43,607 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:42:43,984 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:42:44,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:42:44,417 INFO L93 Difference]: Finished difference Result 363 states and 474 transitions. [2020-10-13 12:42:44,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 12:42:44,418 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 71 [2020-10-13 12:42:44,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:42:44,422 INFO L225 Difference]: With dead ends: 363 [2020-10-13 12:42:44,423 INFO L226 Difference]: Without dead ends: 267 [2020-10-13 12:42:44,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-13 12:42:44,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-10-13 12:42:44,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 216. [2020-10-13 12:42:44,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-10-13 12:42:44,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 258 transitions. [2020-10-13 12:42:44,489 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 258 transitions. Word has length 71 [2020-10-13 12:42:44,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:42:44,490 INFO L479 AbstractCegarLoop]: Abstraction has 216 states and 258 transitions. [2020-10-13 12:42:44,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:42:44,490 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 258 transitions. [2020-10-13 12:42:44,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-13 12:42:44,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:42:44,492 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] [2020-10-13 12:42:44,492 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 12:42:44,493 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:42:44,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:42:44,493 INFO L82 PathProgramCache]: Analyzing trace with hash -272397377, now seen corresponding path program 1 times [2020-10-13 12:42:44,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:42:44,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2096797059] [2020-10-13 12:42:44,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:42:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:44,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:44,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:44,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:44,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:49,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:49,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 12:42:49,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 12:42:49,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-13 12:42:49,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:49,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:42:49,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-13 12:42:49,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 12:42:49,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:49,764 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:42:49,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:42:49,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:49,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:49,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:49,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:49,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:49,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 12:42:49,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:49,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:49,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:49,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:49,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:49,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:42:49,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:49,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:49,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:49,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:49,815 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:49,815 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:49,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:49,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:49,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:49,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:49,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:49,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:42:49,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:49,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:49,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:49,819 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:49,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:49,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:42:49,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:49,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:49,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:49,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:49,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:49,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:42:49,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:49,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:49,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:49,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:49,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:49,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:42:49,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:49,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:49,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:49,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:49,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:49,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:42:49,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:49,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:49,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:49,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:49,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:49,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:42:49,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:49,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:49,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:49,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:49,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:49,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-13 12:42:49,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:49,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:49,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:49,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:49,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:49,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:49,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:49,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:49,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:49,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:49,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:49,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 12:42:49,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:49,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:49,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:49,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:49,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:49,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:42:49,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:49,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:49,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:49,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:42:49,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:49,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 12:42:49,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:49,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:49,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:49,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:49,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 12:42:49,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:42:49,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 12:42:49,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:49,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:42:49,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 12:42:49,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 12:42:49,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:49,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:42:49,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:49,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:49,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:49,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 12:42:49,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:49,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:42:49,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:49,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:49,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:49,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 12:42:49,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:49,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-13 12:42:49,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:49,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:49,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:49,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:49,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:49,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:42:49,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:49,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:49,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:49,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:49,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:49,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 12:42:49,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:49,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:49,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:49,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:49,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:49,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:49,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:49,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:49,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:49,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:49,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:49,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-13 12:42:49,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:49,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:49,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:49,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:49,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:49,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:49,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:49,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:49,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:49,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:49,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:42:49,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 12:42:49,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:49,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:49,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:49,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:49,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:49,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:49,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:49,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:49,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:49,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:49,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:49,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:42:49,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2096797059] [2020-10-13 12:42:49,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:42:49,967 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-13 12:42:49,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675145101] [2020-10-13 12:42:49,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 12:42:49,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:42:49,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 12:42:49,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-13 12:42:49,970 INFO L87 Difference]: Start difference. First operand 216 states and 258 transitions. Second operand 7 states. [2020-10-13 12:42:50,623 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:42:50,861 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:42:52,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:42:52,802 INFO L93 Difference]: Finished difference Result 559 states and 733 transitions. [2020-10-13 12:42:52,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 12:42:52,803 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2020-10-13 12:42:52,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:42:52,807 INFO L225 Difference]: With dead ends: 559 [2020-10-13 12:42:52,808 INFO L226 Difference]: Without dead ends: 367 [2020-10-13 12:42:52,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-13 12:42:52,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2020-10-13 12:42:52,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 328. [2020-10-13 12:42:52,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2020-10-13 12:42:52,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 398 transitions. [2020-10-13 12:42:52,888 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 398 transitions. Word has length 79 [2020-10-13 12:42:52,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:42:52,888 INFO L479 AbstractCegarLoop]: Abstraction has 328 states and 398 transitions. [2020-10-13 12:42:52,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 12:42:52,889 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 398 transitions. [2020-10-13 12:42:52,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-13 12:42:52,890 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:42:52,890 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] [2020-10-13 12:42:52,891 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 12:42:52,891 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:42:52,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:42:52,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1135016507, now seen corresponding path program 1 times [2020-10-13 12:42:52,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:42:52,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [455415476] [2020-10-13 12:42:52,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:42:52,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 12:42:52,925 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 12:42:52,925 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 12:42:52,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 12:42:52,954 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:42:52 BoogieIcfgContainer [2020-10-13 12:42:52,954 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 12:42:52,956 INFO L168 Benchmark]: Toolchain (without parser) took 26178.34 ms. Allocated memory was 139.5 MB in the beginning and 681.1 MB in the end (delta: 541.6 MB). Free memory was 101.3 MB in the beginning and 354.3 MB in the end (delta: -253.1 MB). Peak memory consumption was 288.5 MB. Max. memory is 7.1 GB. [2020-10-13 12:42:52,957 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. [2020-10-13 12:42:52,958 INFO L168 Benchmark]: CACSL2BoogieTranslator took 632.85 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 101.3 MB in the beginning and 169.5 MB in the end (delta: -68.2 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2020-10-13 12:42:52,959 INFO L168 Benchmark]: Boogie Preprocessor took 116.62 ms. Allocated memory is still 202.4 MB. Free memory was 169.5 MB in the beginning and 164.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-10-13 12:42:52,960 INFO L168 Benchmark]: RCFGBuilder took 1054.25 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 164.5 MB in the beginning and 193.7 MB in the end (delta: -29.1 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. [2020-10-13 12:42:52,960 INFO L168 Benchmark]: TraceAbstraction took 24368.66 ms. Allocated memory was 235.4 MB in the beginning and 681.1 MB in the end (delta: 445.6 MB). Free memory was 193.7 MB in the beginning and 354.3 MB in the end (delta: -160.7 MB). Peak memory consumption was 285.0 MB. Max. memory is 7.1 GB. [2020-10-13 12:42:52,964 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.4 kB). Peak memory consumption was 419.4 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 632.85 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 101.3 MB in the beginning and 169.5 MB in the end (delta: -68.2 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 116.62 ms. Allocated memory is still 202.4 MB. Free memory was 169.5 MB in the beginning and 164.5 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1054.25 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 164.5 MB in the beginning and 193.7 MB in the end (delta: -29.1 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 24368.66 ms. Allocated memory was 235.4 MB in the beginning and 681.1 MB in the end (delta: 445.6 MB). Free memory was 193.7 MB in the beginning and 354.3 MB in the end (delta: -160.7 MB). Peak memory consumption was 285.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 883]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L47] int waterLevel = 1; [L48] int methaneLevelCritical = 0; [L136] int cleanupTimeShifts = 4; [L407] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L675] int pumpRunning = 0; [L676] int systemActive = 1; [L215] int retValue_acc ; [L216] int tmp ; [L220] FCALL select_helpers() [L221] FCALL select_features() [L222] CALL, EXPR valid_product() [L914] int retValue_acc ; [L917] retValue_acc = 1 [L918] return (retValue_acc); [L222] RET, EXPR valid_product() [L222] tmp = valid_product() [L224] COND TRUE \read(tmp) [L226] FCALL setup() [L227] CALL runTest() [L206] CALL test() [L606] int splverifierCounter ; [L607] int tmp ; [L608] int tmp___0 ; [L609] int tmp___1 ; [L610] int tmp___2 ; [L613] splverifierCounter = 0 [L615] COND TRUE 1 [L617] COND TRUE splverifierCounter < 4 [L623] tmp = __VERIFIER_nondet_int() [L625] COND TRUE \read(tmp) [L627] CALL waterRise() [L65] COND TRUE waterLevel < 2 [L66] waterLevel = waterLevel + 1 [L627] RET waterRise() [L633] tmp___0 = __VERIFIER_nondet_int() [L635] COND FALSE !(\read(tmp___0)) [L643] tmp___2 = __VERIFIER_nondet_int() [L645] COND FALSE !(\read(tmp___2)) [L651] tmp___1 = __VERIFIER_nondet_int() [L653] COND TRUE \read(tmp___1) [L660] CALL timeShift() [L683] COND FALSE !(\read(pumpRunning)) [L690] COND TRUE \read(systemActive) [L692] CALL processEnvironment() [L738] int tmp ; [L741] COND FALSE !(\read(pumpRunning)) [L756] CALL processEnvironment__wrappee__methaneQuery() [L712] int tmp ; [L715] COND FALSE !(\read(pumpRunning)) [L730] FCALL processEnvironment__wrappee__base() [L756] RET processEnvironment__wrappee__methaneQuery() [L692] RET processEnvironment() [L698] CALL __utac_acc__Specification3_spec__1() [L924] int tmp ; [L925] int tmp___0 ; [L926] int tmp___1 ; [L930] CALL, EXPR isMethaneLevelCritical() [L86] int retValue_acc ; [L89] retValue_acc = methaneLevelCritical [L90] return (retValue_acc); [L930] RET, EXPR isMethaneLevelCritical() [L930] tmp = isMethaneLevelCritical() [L932] COND FALSE !(\read(tmp)) [L936] CALL, EXPR getWaterLevel() [L118] int retValue_acc ; [L121] retValue_acc = waterLevel [L122] return (retValue_acc); [L936] RET, EXPR getWaterLevel() [L936] tmp___0 = getWaterLevel() [L938] COND TRUE tmp___0 == 2 [L940] CALL, EXPR isPumpRunning() [L807] int retValue_acc ; [L810] retValue_acc = pumpRunning [L811] return (retValue_acc); [L940] RET, EXPR isPumpRunning() [L940] tmp___1 = isPumpRunning() [L942] COND FALSE !(\read(tmp___1)) [L946] CALL __automaton_fail() [L883] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 238 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 24.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 9.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 637 SDtfs, 852 SDslu, 320 SDs, 0 SdLazy, 1771 SolverSat, 552 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=328occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 175 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 13.3s InterpolantComputationTime, 388 NumberOfCodeBlocks, 388 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 308 ConstructedInterpolants, 0 QuantifiedInterpolants, 86230 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...