/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_product64.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 12:44:14,546 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 12:44:14,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 12:44:14,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 12:44:14,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 12:44:14,576 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 12:44:14,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 12:44:14,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 12:44:14,581 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 12:44:14,582 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 12:44:14,583 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 12:44:14,584 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 12:44:14,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 12:44:14,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 12:44:14,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 12:44:14,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 12:44:14,588 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 12:44:14,593 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 12:44:14,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 12:44:14,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 12:44:14,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 12:44:14,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 12:44:14,602 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 12:44:14,603 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 12:44:14,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 12:44:14,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 12:44:14,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 12:44:14,607 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 12:44:14,607 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 12:44:14,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 12:44:14,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 12:44:14,609 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 12:44:14,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 12:44:14,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 12:44:14,612 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 12:44:14,612 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 12:44:14,613 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 12:44:14,613 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 12:44:14,613 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 12:44:14,614 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 12:44:14,615 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 12:44:14,615 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 12:44:14,638 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 12:44:14,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 12:44:14,640 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 12:44:14,640 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 12:44:14,640 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 12:44:14,640 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 12:44:14,641 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 12:44:14,641 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 12:44:14,641 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 12:44:14,641 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 12:44:14,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 12:44:14,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 12:44:14,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 12:44:14,642 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 12:44:14,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 12:44:14,642 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 12:44:14,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 12:44:14,643 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 12:44:14,643 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 12:44:14,643 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 12:44:14,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 12:44:14,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 12:44:14,644 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 12:44:14,644 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 12:44:14,644 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 12:44:14,644 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 12:44:14,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 12:44:14,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 12:44:14,645 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 12:44:14,645 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 12:44:14,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 12:44:14,954 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 12:44:14,959 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 12:44:14,962 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 12:44:14,964 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 12:44:14,965 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2020-10-13 12:44:15,045 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e14954c2d/3637c4ae5aff45a99c18f5d6406c9f9d/FLAG4fa9e95e4 [2020-10-13 12:44:15,617 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 12:44:15,617 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product64.cil.c [2020-10-13 12:44:15,631 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e14954c2d/3637c4ae5aff45a99c18f5d6406c9f9d/FLAG4fa9e95e4 [2020-10-13 12:44:15,963 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e14954c2d/3637c4ae5aff45a99c18f5d6406c9f9d [2020-10-13 12:44:15,975 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 12:44:15,977 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 12:44:15,978 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 12:44:15,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 12:44:15,982 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 12:44:15,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:44:15" (1/1) ... [2020-10-13 12:44:15,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62eea600 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:15, skipping insertion in model container [2020-10-13 12:44:15,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:44:15" (1/1) ... [2020-10-13 12:44:15,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 12:44:16,067 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 12:44:16,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:44:16,550 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 12:44:16,631 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:44:16,669 INFO L208 MainTranslator]: Completed translation [2020-10-13 12:44:16,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:16 WrapperNode [2020-10-13 12:44:16,670 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 12:44:16,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 12:44:16,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 12:44:16,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 12:44:16,681 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:16" (1/1) ... [2020-10-13 12:44:16,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:16" (1/1) ... [2020-10-13 12:44:16,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:16" (1/1) ... [2020-10-13 12:44:16,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:16" (1/1) ... [2020-10-13 12:44:16,735 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:16" (1/1) ... [2020-10-13 12:44:16,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:16" (1/1) ... [2020-10-13 12:44:16,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:16" (1/1) ... [2020-10-13 12:44:16,761 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 12:44:16,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 12:44:16,761 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 12:44:16,762 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 12:44:16,762 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:16" (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 12:44:16,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 12:44:16,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 12:44:16,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-13 12:44:16,849 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-13 12:44:16,849 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-13 12:44:16,850 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-13 12:44:16,850 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-13 12:44:16,852 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-13 12:44:16,852 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-13 12:44:16,852 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-10-13 12:44:16,852 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-13 12:44:16,852 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-13 12:44:16,853 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-13 12:44:16,853 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-13 12:44:16,853 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-13 12:44:16,854 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-13 12:44:16,854 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-13 12:44:16,854 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-13 12:44:16,855 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-13 12:44:16,855 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-13 12:44:16,855 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-13 12:44:16,856 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-13 12:44:16,856 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-13 12:44:16,857 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-13 12:44:16,857 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-13 12:44:16,858 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-13 12:44:16,858 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-13 12:44:16,858 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-13 12:44:16,858 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-13 12:44:16,859 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-13 12:44:16,859 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-13 12:44:16,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-13 12:44:16,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-13 12:44:16,859 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-13 12:44:16,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-13 12:44:16,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-13 12:44:16,860 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-13 12:44:16,860 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-13 12:44:16,860 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-13 12:44:16,860 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-13 12:44:16,861 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-13 12:44:16,861 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 12:44:16,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-13 12:44:16,862 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-13 12:44:16,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 12:44:16,862 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 12:44:16,862 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-13 12:44:16,862 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-13 12:44:16,862 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-13 12:44:16,863 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-13 12:44:16,863 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-13 12:44:16,863 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-13 12:44:16,864 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-13 12:44:16,864 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-13 12:44:16,864 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-13 12:44:16,864 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-13 12:44:16,865 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-13 12:44:16,865 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-13 12:44:16,865 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-13 12:44:16,865 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-13 12:44:16,865 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-13 12:44:16,866 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-13 12:44:16,866 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-13 12:44:16,866 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-13 12:44:16,867 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-13 12:44:16,867 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-13 12:44:16,867 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-13 12:44:16,867 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-10-13 12:44:16,867 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-13 12:44:16,868 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-13 12:44:16,868 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-13 12:44:16,870 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-13 12:44:16,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 12:44:16,870 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-13 12:44:16,870 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-13 12:44:16,871 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-13 12:44:16,871 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-13 12:44:16,871 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-13 12:44:16,871 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-13 12:44:16,871 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 12:44:16,871 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 12:44:16,873 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-13 12:44:16,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 12:44:16,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 12:44:16,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 12:44:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 12:44:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-13 12:44:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 12:44:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-13 12:44:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-13 12:44:16,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 12:44:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-13 12:44:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-13 12:44:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-13 12:44:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-13 12:44:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-13 12:44:16,875 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-13 12:44:16,876 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 12:44:16,876 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-13 12:44:16,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 12:44:16,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 12:44:16,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 12:44:18,170 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 12:44:18,170 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-13 12:44:18,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:44:18 BoogieIcfgContainer [2020-10-13 12:44:18,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 12:44:18,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 12:44:18,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 12:44:18,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 12:44:18,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:44:15" (1/3) ... [2020-10-13 12:44:18,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c222fc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:44:18, skipping insertion in model container [2020-10-13 12:44:18,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:44:16" (2/3) ... [2020-10-13 12:44:18,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c222fc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:44:18, skipping insertion in model container [2020-10-13 12:44:18,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:44:18" (3/3) ... [2020-10-13 12:44:18,187 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product64.cil.c [2020-10-13 12:44:18,198 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 12:44:18,209 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 12:44:18,224 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 12:44:18,250 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 12:44:18,250 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 12:44:18,250 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 12:44:18,250 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 12:44:18,251 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 12:44:18,252 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 12:44:18,252 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 12:44:18,252 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 12:44:18,284 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states. [2020-10-13 12:44:18,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-13 12:44:18,300 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:44:18,301 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 12:44:18,301 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:44:18,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:44:18,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1153750625, now seen corresponding path program 1 times [2020-10-13 12:44:18,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:44:18,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1706008237] [2020-10-13 12:44:18,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:44:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:18,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:18,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:19,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:20,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:20,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 12:44:20,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:44:21,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2332 [2020-10-13 12:44:21,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:21,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:21,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-13 12:44:21,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:21,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-13 12:44:21,405 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:44:21,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:44:21,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:21,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:21,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:21,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:21,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:21,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-13 12:44:21,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:21,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:21,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:21,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:21,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:21,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:44:21,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:21,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:21,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:21,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:21,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:21,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:44:21,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:21,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:21,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:21,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:21,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:44:21,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:44:21,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:21,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:21,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:21,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:21,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:21,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:21,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:21,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:21,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:21,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:21,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:44:21,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:44:21,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:21,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:21,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:21,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:21,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:21,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:44:21,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:21,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:21,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:21,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:21,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:44:21,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:44:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:21,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:21,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:21,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:21,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:21,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:44:21,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:21,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:21,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:21,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:21,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:44:21,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 12:44:21,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:21,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:21,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:21,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:21,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:21,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:44:21,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:21,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:21,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:21,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:21,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:21,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 12:44:21,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:21,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:21,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:21,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:21,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:21,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:44:21,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:21,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:21,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:21,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:21,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:44:21,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 12:44:21,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:21,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:21,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:21,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:21,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:21,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:44:21,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:21,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:21,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:21,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:21,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:44:21,608 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 12:44:21,609 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1706008237] [2020-10-13 12:44:21,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:44:21,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 12:44:21,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818365614] [2020-10-13 12:44:21,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 12:44:21,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:44:21,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 12:44:21,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 12:44:21,653 INFO L87 Difference]: Start difference. First operand 209 states. Second operand 3 states. [2020-10-13 12:44:23,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:44:23,208 INFO L93 Difference]: Finished difference Result 380 states and 494 transitions. [2020-10-13 12:44:23,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 12:44:23,211 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-10-13 12:44:23,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:44:23,230 INFO L225 Difference]: With dead ends: 380 [2020-10-13 12:44:23,230 INFO L226 Difference]: Without dead ends: 205 [2020-10-13 12:44:23,236 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 12:44:23,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-13 12:44:23,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 166. [2020-10-13 12:44:23,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-10-13 12:44:23,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 198 transitions. [2020-10-13 12:44:23,356 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 198 transitions. Word has length 52 [2020-10-13 12:44:23,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:44:23,357 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 198 transitions. [2020-10-13 12:44:23,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 12:44:23,357 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 198 transitions. [2020-10-13 12:44:23,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-13 12:44:23,361 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:44:23,361 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 12:44:23,362 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 12:44:23,362 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:44:23,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:44:23,362 INFO L82 PathProgramCache]: Analyzing trace with hash -2119837363, now seen corresponding path program 1 times [2020-10-13 12:44:23,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:44:23,363 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [409158253] [2020-10-13 12:44:23,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:44:23,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:23,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:23,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:23,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:25,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:25,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-13 12:44:25,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:44:25,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2031 [2020-10-13 12:44:25,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:25,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:25,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-13 12:44:25,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:44:25,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:25,682 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:44:25,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:44:25,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:25,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:25,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:25,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:25,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:25,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 12:44:25,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:25,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:25,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:25,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:25,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:25,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:44:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:25,787 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:25,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:25,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:25,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:25,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 12:44:25,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:25,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:25,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:25,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:25,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:44:25,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:44:25,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:25,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:25,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:25,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:25,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:25,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:44:25,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:25,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:25,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:25,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:25,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:44:25,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:44:25,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:25,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:25,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:25,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:25,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:25,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:44:25,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:25,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:25,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:25,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:25,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:25,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:44:25,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:25,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:25,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:25,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:25,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:25,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:44:25,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:25,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:25,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:25,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:25,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:44:25,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 12:44:25,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:25,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:25,826 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:25,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:25,827 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:25,827 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:25,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:25,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:25,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:25,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:25,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:25,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 12:44:25,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:25,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:25,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:25,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:25,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:25,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:25,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:25,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:25,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:25,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:25,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:25,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 12:44:25,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:25,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:25,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:25,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:25,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:25,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:25,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:25,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:25,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:25,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:25,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:25,849 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 12:44:25,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [409158253] [2020-10-13 12:44:25,851 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:44:25,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 12:44:25,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753707674] [2020-10-13 12:44:25,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 12:44:25,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:44:25,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 12:44:25,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 12:44:25,855 INFO L87 Difference]: Start difference. First operand 166 states and 198 transitions. Second operand 4 states. [2020-10-13 12:44:26,322 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:44:27,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:44:27,599 INFO L93 Difference]: Finished difference Result 303 states and 373 transitions. [2020-10-13 12:44:27,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 12:44:27,600 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-13 12:44:27,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:44:27,603 INFO L225 Difference]: With dead ends: 303 [2020-10-13 12:44:27,603 INFO L226 Difference]: Without dead ends: 189 [2020-10-13 12:44:27,605 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 12:44:27,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-10-13 12:44:27,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 157. [2020-10-13 12:44:27,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-10-13 12:44:27,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 186 transitions. [2020-10-13 12:44:27,657 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 186 transitions. Word has length 53 [2020-10-13 12:44:27,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:44:27,658 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 186 transitions. [2020-10-13 12:44:27,658 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 12:44:27,658 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 186 transitions. [2020-10-13 12:44:27,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-13 12:44:27,661 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:44:27,661 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 12:44:27,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 12:44:27,661 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:44:27,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:44:27,662 INFO L82 PathProgramCache]: Analyzing trace with hash -1174645714, now seen corresponding path program 1 times [2020-10-13 12:44:27,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:44:27,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1444863065] [2020-10-13 12:44:27,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:44:27,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:27,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:27,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:28,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:28,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-13 12:44:28,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:44:28,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1307 [2020-10-13 12:44:28,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:28,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 12:44:28,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:29,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-13 12:44:29,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:44:29,337 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:44:29,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:44:29,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:29,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:29,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:29,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:29,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:29,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 12:44:29,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:29,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:29,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:29,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:44:29,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:29,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:44:29,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:29,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:29,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:29,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:29,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:29,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:29,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:29,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:29,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:29,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:44:29,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:44:29,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:44:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:29,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:29,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:29,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:29,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:29,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:29,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:29,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:29,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:29,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:44:29,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:44:29,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:44:29,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:29,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:29,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:29,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:29,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:29,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:44:29,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:29,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:29,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:29,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:44:29,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:29,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:44:29,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:29,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:29,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:29,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:29,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:29,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:29,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:29,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:29,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:29,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:44:29,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:29,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 12:44:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:29,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:29,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:29,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:29,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:29,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:29,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:29,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:29,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:29,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:29,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:29,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 12:44:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:29,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:29,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:29,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:29,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:29,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:44:29,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:29,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:29,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:29,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:29,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:29,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 12:44:29,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:29,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:29,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:29,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:29,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:29,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:29,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:29,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:29,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:29,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:29,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:29,475 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 12:44:29,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1444863065] [2020-10-13 12:44:29,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:44:29,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 12:44:29,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404911144] [2020-10-13 12:44:29,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 12:44:29,478 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:44:29,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 12:44:29,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 12:44:29,479 INFO L87 Difference]: Start difference. First operand 157 states and 186 transitions. Second operand 4 states. [2020-10-13 12:44:29,862 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:44:31,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:44:31,941 INFO L93 Difference]: Finished difference Result 471 states and 584 transitions. [2020-10-13 12:44:31,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 12:44:31,942 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-10-13 12:44:31,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:44:31,952 INFO L225 Difference]: With dead ends: 471 [2020-10-13 12:44:31,952 INFO L226 Difference]: Without dead ends: 338 [2020-10-13 12:44:31,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 12:44:31,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2020-10-13 12:44:32,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 280. [2020-10-13 12:44:32,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-10-13 12:44:32,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 339 transitions. [2020-10-13 12:44:32,075 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 339 transitions. Word has length 58 [2020-10-13 12:44:32,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:44:32,075 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 339 transitions. [2020-10-13 12:44:32,076 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 12:44:32,076 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 339 transitions. [2020-10-13 12:44:32,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-13 12:44:32,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:44:32,079 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] [2020-10-13 12:44:32,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 12:44:32,079 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:44:32,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:44:32,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1545438199, now seen corresponding path program 1 times [2020-10-13 12:44:32,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:44:32,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1301866926] [2020-10-13 12:44:32,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:44:32,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:32,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:32,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:32,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-13 12:44:32,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:32,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 793 [2020-10-13 12:44:32,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:32,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 12:44:32,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:32,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 12:44:32,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:33,154 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:44:33,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:44:33,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:33,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:33,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:33,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:33,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:33,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-13 12:44:33,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:33,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:33,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:33,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:44:33,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:33,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:44:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:33,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:33,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:33,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:33,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:33,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:33,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:33,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:33,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:33,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:44:33,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:33,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:44:33,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:33,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:33,251 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:33,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:33,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:33,252 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:33,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:33,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:33,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:33,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:44:33,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:33,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:44:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:33,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:33,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:33,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:33,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:33,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:44:33,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:33,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:33,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:33,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:44:33,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:33,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:44:33,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:33,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:33,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:33,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:33,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:33,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:33,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:33,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:33,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:33,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:44:33,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:33,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 12:44:33,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:33,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:33,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:33,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:44:33,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:33,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:44:33,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:33,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:33,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:33,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:44:33,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:33,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 12:44:33,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:33,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:33,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:33,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:33,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:33,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:33,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:33,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:33,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:33,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:44:33,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:33,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 12:44:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:33,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:33,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:33,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:33,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:33,302 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:44:33,302 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:33,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:44:33,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:33,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:44:33,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:33,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 12:44:33,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:33,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:33,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:33,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:33,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:33,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:33,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:33,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:33,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:33,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:33,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:33,341 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 12:44:33,342 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1301866926] [2020-10-13 12:44:33,342 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:44:33,342 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 12:44:33,342 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7520510] [2020-10-13 12:44:33,343 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:44:33,343 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:44:33,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:44:33,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:44:33,344 INFO L87 Difference]: Start difference. First operand 280 states and 339 transitions. Second operand 8 states. [2020-10-13 12:44:33,775 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:44:35,243 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-13 12:44:35,722 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:44:36,042 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:44:36,312 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:44:37,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:44:37,467 INFO L93 Difference]: Finished difference Result 879 states and 1148 transitions. [2020-10-13 12:44:37,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 12:44:37,468 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-10-13 12:44:37,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:44:37,475 INFO L225 Difference]: With dead ends: 879 [2020-10-13 12:44:37,475 INFO L226 Difference]: Without dead ends: 623 [2020-10-13 12:44:37,477 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-13 12:44:37,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 623 states. [2020-10-13 12:44:37,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 623 to 547. [2020-10-13 12:44:37,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 547 states. [2020-10-13 12:44:37,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 673 transitions. [2020-10-13 12:44:37,636 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 673 transitions. Word has length 63 [2020-10-13 12:44:37,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:44:37,636 INFO L479 AbstractCegarLoop]: Abstraction has 547 states and 673 transitions. [2020-10-13 12:44:37,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:44:37,637 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 673 transitions. [2020-10-13 12:44:37,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-13 12:44:37,640 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:44:37,640 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:44:37,641 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 12:44:37,641 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:44:37,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:44:37,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1515300765, now seen corresponding path program 1 times [2020-10-13 12:44:37,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:44:37,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1730242768] [2020-10-13 12:44:37,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:44:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:37,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:37,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:38,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:41,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:42,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:42,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-13 12:44:42,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 12:44:42,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 12:44:42,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:42,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:44:42,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-13 12:44:42,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:44:42,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:42,915 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:44:42,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:44:42,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:42,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:42,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:42,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:42,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:42,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 12:44:42,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:42,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:42,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:42,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:42,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:42,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:44:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:42,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:42,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:42,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:42,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:42,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:44:42,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:42,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:42,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:42,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:42,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:42,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:44:42,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:42,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:42,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:42,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:42,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:42,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:44:42,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:42,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:42,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:42,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:42,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:42,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:44:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:42,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:42,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:42,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:42,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:42,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:42,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:42,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:42,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:42,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:42,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:42,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:44:42,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:42,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:42,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:42,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:44:42,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:42,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:42,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:42,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:42,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:42,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:42,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:42,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 12:44:42,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:43,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:43,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:43,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:44:43,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:43,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:44:43,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:43,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:44:43,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:44:43,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:44:43,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:43,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-13 12:44:43,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:43,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:43,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:43,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:43,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:43,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:43,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:43,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:43,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:43,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:43,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:43,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-13 12:44:43,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:43,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:43,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:43,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:43,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:43,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:43,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:43,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:43,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:43,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:43,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:43,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-13 12:44:43,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:43,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:43,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:43,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:43,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:43,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:43,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:43,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:43,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:43,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:43,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:43,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-13 12:44:43,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:44:43,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:44:43,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:44:43,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:44:43,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:44:43,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:44:43,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:44:43,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:44:43,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:44:43,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:44:43,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:44:43,048 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 12:44:43,048 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1730242768] [2020-10-13 12:44:43,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:44:43,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-13 12:44:43,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877542344] [2020-10-13 12:44:43,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 12:44:43,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:44:43,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 12:44:43,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 12:44:43,051 INFO L87 Difference]: Start difference. First operand 547 states and 673 transitions. Second operand 6 states. [2020-10-13 12:44:43,425 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:44:45,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:44:45,600 INFO L93 Difference]: Finished difference Result 1347 states and 1747 transitions. [2020-10-13 12:44:45,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 12:44:45,600 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2020-10-13 12:44:45,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:44:45,606 INFO L225 Difference]: With dead ends: 1347 [2020-10-13 12:44:45,606 INFO L226 Difference]: Without dead ends: 824 [2020-10-13 12:44:45,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-13 12:44:45,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2020-10-13 12:44:45,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 755. [2020-10-13 12:44:45,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 755 states. [2020-10-13 12:44:45,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 912 transitions. [2020-10-13 12:44:45,735 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 912 transitions. Word has length 67 [2020-10-13 12:44:45,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:44:45,736 INFO L479 AbstractCegarLoop]: Abstraction has 755 states and 912 transitions. [2020-10-13 12:44:45,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 12:44:45,736 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 912 transitions. [2020-10-13 12:44:45,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-13 12:44:45,738 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:44:45,738 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] [2020-10-13 12:44:45,738 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 12:44:45,738 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:44:45,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:44:45,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1461698211, now seen corresponding path program 1 times [2020-10-13 12:44:45,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:44:45,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [391032052] [2020-10-13 12:44:45,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:44:45,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 12:44:45,773 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 12:44:45,773 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 12:44:45,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 12:44:45,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:44:45 BoogieIcfgContainer [2020-10-13 12:44:45,800 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 12:44:45,802 INFO L168 Benchmark]: Toolchain (without parser) took 29825.74 ms. Allocated memory was 147.8 MB in the beginning and 709.4 MB in the end (delta: 561.5 MB). Free memory was 102.4 MB in the beginning and 543.6 MB in the end (delta: -441.2 MB). Peak memory consumption was 120.3 MB. Max. memory is 7.1 GB. [2020-10-13 12:44:45,803 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 121.9 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. [2020-10-13 12:44:45,804 INFO L168 Benchmark]: CACSL2BoogieTranslator took 691.64 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 102.4 MB in the beginning and 171.2 MB in the end (delta: -68.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. [2020-10-13 12:44:45,805 INFO L168 Benchmark]: Boogie Preprocessor took 90.49 ms. Allocated memory is still 204.5 MB. Free memory was 171.2 MB in the beginning and 166.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-10-13 12:44:45,806 INFO L168 Benchmark]: RCFGBuilder took 1414.96 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 166.4 MB in the beginning and 191.0 MB in the end (delta: -24.5 MB). Peak memory consumption was 79.6 MB. Max. memory is 7.1 GB. [2020-10-13 12:44:45,807 INFO L168 Benchmark]: TraceAbstraction took 27622.44 ms. Allocated memory was 237.5 MB in the beginning and 709.4 MB in the end (delta: 471.9 MB). Free memory was 191.0 MB in the beginning and 543.6 MB in the end (delta: -352.6 MB). Peak memory consumption was 119.2 MB. Max. memory is 7.1 GB. [2020-10-13 12:44:45,810 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 147.8 MB. Free memory was 122.4 MB in the beginning and 121.9 MB in the end (delta: 419.7 kB). Peak memory consumption was 419.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 691.64 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 102.4 MB in the beginning and 171.2 MB in the end (delta: -68.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 90.49 ms. Allocated memory is still 204.5 MB. Free memory was 171.2 MB in the beginning and 166.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1414.96 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 166.4 MB in the beginning and 191.0 MB in the end (delta: -24.5 MB). Peak memory consumption was 79.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27622.44 ms. Allocated memory was 237.5 MB in the beginning and 709.4 MB in the end (delta: 471.9 MB). Free memory was 191.0 MB in the beginning and 543.6 MB in the end (delta: -352.6 MB). Peak memory consumption was 119.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 996]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L90] int pumpRunning = 0; [L91] int systemActive = 1; [L427] int waterLevel = 1; [L428] int methaneLevelCritical = 0; [L699] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L896] int cleanupTimeShifts = 4; [L969] int retValue_acc ; [L970] int tmp ; [L974] FCALL select_helpers() [L975] FCALL select_features() [L976] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L976] RET, EXPR valid_product() [L976] tmp = valid_product() [L978] COND TRUE \read(tmp) [L980] FCALL setup() [L981] CALL runTest() [L963] CALL test() [L358] int splverifierCounter ; [L359] int tmp ; [L360] int tmp___0 ; [L361] int tmp___1 ; [L362] int tmp___2 ; [L365] splverifierCounter = 0 [L367] COND TRUE 1 [L369] COND TRUE splverifierCounter < 4 [L375] tmp = __VERIFIER_nondet_int() [L377] COND TRUE \read(tmp) [L379] CALL waterRise() [L445] COND TRUE waterLevel < 2 [L446] waterLevel = waterLevel + 1 [L379] RET waterRise() [L385] tmp___0 = __VERIFIER_nondet_int() [L387] COND FALSE !(\read(tmp___0)) [L395] tmp___2 = __VERIFIER_nondet_int() [L397] COND FALSE !(\read(tmp___2)) [L403] tmp___1 = __VERIFIER_nondet_int() [L405] COND TRUE \read(tmp___1) [L407] CALL stopSystem() [L334] COND FALSE !(\read(pumpRunning)) [L341] systemActive = 0 [L407] RET stopSystem() [L414] CALL timeShift() [L98] COND FALSE !(\read(pumpRunning)) [L105] COND FALSE !(\read(systemActive)) [L113] CALL __utac_acc__Specification3_spec__1() [L1002] int tmp ; [L1003] int tmp___0 ; [L1004] int tmp___1 ; [L1008] CALL, EXPR isMethaneLevelCritical() [L466] int retValue_acc ; [L469] retValue_acc = methaneLevelCritical [L470] return (retValue_acc); [L1008] RET, EXPR isMethaneLevelCritical() [L1008] tmp = isMethaneLevelCritical() [L1010] COND FALSE !(\read(tmp)) [L1014] CALL, EXPR getWaterLevel() [L498] int retValue_acc ; [L501] retValue_acc = waterLevel [L502] return (retValue_acc); [L1014] RET, EXPR getWaterLevel() [L1014] tmp___0 = getWaterLevel() [L1016] COND TRUE tmp___0 == 2 [L1018] CALL, EXPR isPumpRunning() [L248] int retValue_acc ; [L251] retValue_acc = pumpRunning [L252] return (retValue_acc); [L1018] RET, EXPR isPumpRunning() [L1018] tmp___1 = isPumpRunning() [L1020] COND FALSE !(\read(tmp___1)) [L1024] CALL __automaton_fail() [L996] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 44 procedures, 265 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 27.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 12.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 780 SDtfs, 1318 SDslu, 359 SDs, 0 SdLazy, 2031 SolverSat, 841 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=755occurred 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: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 274 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 13.7s InterpolantComputationTime, 360 NumberOfCodeBlocks, 360 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 288 ConstructedInterpolants, 0 QuantifiedInterpolants, 79036 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...