/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_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 12:41:49,530 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 12:41:49,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 12:41:49,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 12:41:49,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 12:41:49,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 12:41:49,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 12:41:49,560 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 12:41:49,561 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 12:41:49,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 12:41:49,563 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 12:41:49,564 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 12:41:49,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 12:41:49,565 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 12:41:49,566 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 12:41:49,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 12:41:49,568 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 12:41:49,569 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 12:41:49,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 12:41:49,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 12:41:49,573 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 12:41:49,574 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 12:41:49,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 12:41:49,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 12:41:49,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 12:41:49,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 12:41:49,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 12:41:49,580 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 12:41:49,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 12:41:49,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 12:41:49,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 12:41:49,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 12:41:49,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 12:41:49,583 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 12:41:49,584 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 12:41:49,584 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 12:41:49,585 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 12:41:49,585 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 12:41:49,585 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 12:41:49,586 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 12:41:49,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 12:41:49,587 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 12:41:49,610 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 12:41:49,610 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 12:41:49,611 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 12:41:49,611 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 12:41:49,611 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 12:41:49,612 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 12:41:49,612 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 12:41:49,612 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 12:41:49,612 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 12:41:49,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 12:41:49,613 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 12:41:49,613 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 12:41:49,613 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 12:41:49,613 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 12:41:49,613 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 12:41:49,614 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 12:41:49,614 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 12:41:49,614 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 12:41:49,614 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 12:41:49,614 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 12:41:49,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 12:41:49,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 12:41:49,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 12:41:49,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 12:41:49,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 12:41:49,616 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 12:41:49,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 12:41:49,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 12:41:49,616 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 12:41:49,616 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 12:41:49,908 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 12:41:49,921 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 12:41:49,924 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 12:41:49,925 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 12:41:49,926 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 12:41:49,927 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c [2020-10-13 12:41:49,988 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fe9582fa6/bb96a72755d44b48be99dc7688b9f011/FLAG95306f000 [2020-10-13 12:41:50,486 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 12:41:50,487 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product16.cil.c [2020-10-13 12:41:50,506 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fe9582fa6/bb96a72755d44b48be99dc7688b9f011/FLAG95306f000 [2020-10-13 12:41:50,777 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fe9582fa6/bb96a72755d44b48be99dc7688b9f011 [2020-10-13 12:41:50,786 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 12:41:50,788 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 12:41:50,789 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 12:41:50,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 12:41:50,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 12:41:50,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:41:50" (1/1) ... [2020-10-13 12:41:50,798 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@248847c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:50, skipping insertion in model container [2020-10-13 12:41:50,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:41:50" (1/1) ... [2020-10-13 12:41:50,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 12:41:50,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 12:41:51,214 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:41:51,329 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 12:41:51,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:41:51,461 INFO L208 MainTranslator]: Completed translation [2020-10-13 12:41:51,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:51 WrapperNode [2020-10-13 12:41:51,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 12:41:51,463 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 12:41:51,463 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 12:41:51,463 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 12:41:51,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:51" (1/1) ... [2020-10-13 12:41:51,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:51" (1/1) ... [2020-10-13 12:41:51,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:51" (1/1) ... [2020-10-13 12:41:51,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:51" (1/1) ... [2020-10-13 12:41:51,528 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:51" (1/1) ... [2020-10-13 12:41:51,549 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:51" (1/1) ... [2020-10-13 12:41:51,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:51" (1/1) ... [2020-10-13 12:41:51,562 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 12:41:51,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 12:41:51,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 12:41:51,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 12:41:51,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:51" (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 12:41:51,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 12:41:51,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 12:41:51,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-13 12:41:51,626 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-13 12:41:51,626 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-13 12:41:51,626 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-13 12:41:51,626 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-13 12:41:51,626 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-13 12:41:51,627 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 12:41:51,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-13 12:41:51,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-13 12:41:51,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-13 12:41:51,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-13 12:41:51,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-13 12:41:51,627 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-13 12:41:51,628 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-13 12:41:51,628 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-13 12:41:51,628 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-10-13 12:41:51,628 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-13 12:41:51,628 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-10-13 12:41:51,628 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-13 12:41:51,629 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-13 12:41:51,629 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-13 12:41:51,629 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-13 12:41:51,631 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-13 12:41:51,631 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-13 12:41:51,631 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-13 12:41:51,632 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-13 12:41:51,632 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-13 12:41:51,632 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-13 12:41:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-13 12:41:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-13 12:41:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-13 12:41:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-13 12:41:51,636 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-13 12:41:51,637 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-13 12:41:51,637 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-13 12:41:51,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-13 12:41:51,637 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 12:41:51,637 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 12:41:51,637 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-13 12:41:51,638 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-13 12:41:51,638 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-13 12:41:51,638 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-13 12:41:51,638 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-13 12:41:51,638 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-13 12:41:51,638 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-13 12:41:51,638 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-13 12:41:51,639 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-13 12:41:51,639 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-13 12:41:51,642 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-13 12:41:51,642 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-13 12:41:51,642 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-13 12:41:51,642 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-13 12:41:51,642 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 12:41:51,642 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-13 12:41:51,643 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-13 12:41:51,643 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-13 12:41:51,643 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-13 12:41:51,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-13 12:41:51,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-13 12:41:51,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-13 12:41:51,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-13 12:41:51,644 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-13 12:41:51,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-13 12:41:51,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-13 12:41:51,645 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-13 12:41:51,645 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-13 12:41:51,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-13 12:41:51,646 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-13 12:41:51,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-13 12:41:51,647 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-13 12:41:51,647 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-13 12:41:51,647 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-13 12:41:51,647 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-13 12:41:51,647 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-13 12:41:51,647 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-13 12:41:51,647 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-13 12:41:51,648 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-13 12:41:51,648 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-13 12:41:51,648 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-13 12:41:51,648 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-13 12:41:51,648 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-10-13 12:41:51,648 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-13 12:41:51,648 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-10-13 12:41:51,649 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-13 12:41:51,649 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-13 12:41:51,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 12:41:51,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-13 12:41:51,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 12:41:52,692 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 12:41:52,694 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-13 12:41:52,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:41:52 BoogieIcfgContainer [2020-10-13 12:41:52,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 12:41:52,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 12:41:52,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 12:41:52,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 12:41:52,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:41:50" (1/3) ... [2020-10-13 12:41:52,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@378d344d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:41:52, skipping insertion in model container [2020-10-13 12:41:52,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:41:51" (2/3) ... [2020-10-13 12:41:52,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@378d344d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:41:52, skipping insertion in model container [2020-10-13 12:41:52,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:41:52" (3/3) ... [2020-10-13 12:41:52,708 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product16.cil.c [2020-10-13 12:41:52,718 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 12:41:52,725 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 12:41:52,738 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 12:41:52,759 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 12:41:52,760 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 12:41:52,760 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 12:41:52,760 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 12:41:52,760 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 12:41:52,760 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 12:41:52,760 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 12:41:52,761 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 12:41:52,782 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states. [2020-10-13 12:41:52,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-10-13 12:41:52,792 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:41:52,793 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 12:41:52,793 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:41:52,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:41:52,798 INFO L82 PathProgramCache]: Analyzing trace with hash -490913979, now seen corresponding path program 1 times [2020-10-13 12:41:52,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:41:52,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [641655597] [2020-10-13 12:41:52,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:41:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:53,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:53,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:54,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:55,282 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:55,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 12:41:55,283 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:41:55,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2212 [2020-10-13 12:41:55,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:55,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:55,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-13 12:41:55,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:55,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 12:41:55,666 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:41:55,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:41:55,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:55,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:55,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:55,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:55,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:55,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 12:41:55,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:55,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:55,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:55,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:55,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:55,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:41:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:55,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:55,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:55,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:55,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:55,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:55,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:55,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:55,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:55,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:55,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:55,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:41:55,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:55,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:55,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:55,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:55,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:55,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:55,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:55,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:55,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:55,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:55,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:55,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:41:55,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:55,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:55,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:55,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:55,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:55,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:41:55,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:55,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:55,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:55,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:55,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:55,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:41:55,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:55,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:55,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:55,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:41:55,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:55,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:55,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:55,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:55,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:41:55,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:55,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:55,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-13 12:41:55,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:55,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:55,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:55,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:55,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:55,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:55,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:55,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:55,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:55,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:55,767 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:55,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 12:41:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:55,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:55,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:55,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:55,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:55,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:41:55,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:55,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:55,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:55,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:55,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:55,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 12:41:55,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:55,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:55,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:55,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:41:55,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:41:55,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:41:55,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:55,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:41:55,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:41:55,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:41:55,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:41:55,794 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 12:41:55,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [641655597] [2020-10-13 12:41:55,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:41:55,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 12:41:55,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475340934] [2020-10-13 12:41:55,806 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-13 12:41:55,806 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:41:55,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-13 12:41:55,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-13 12:41:55,829 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 3 states. [2020-10-13 12:41:57,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:41:57,051 INFO L93 Difference]: Finished difference Result 272 states and 360 transitions. [2020-10-13 12:41:57,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-13 12:41:57,053 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-10-13 12:41:57,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:41:57,068 INFO L225 Difference]: With dead ends: 272 [2020-10-13 12:41:57,068 INFO L226 Difference]: Without dead ends: 148 [2020-10-13 12:41:57,074 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 12:41:57,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-13 12:41:57,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 115. [2020-10-13 12:41:57,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-13 12:41:57,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 135 transitions. [2020-10-13 12:41:57,187 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 135 transitions. Word has length 52 [2020-10-13 12:41:57,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:41:57,188 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 135 transitions. [2020-10-13 12:41:57,188 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-13 12:41:57,188 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 135 transitions. [2020-10-13 12:41:57,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-13 12:41:57,199 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:41:57,199 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 12:41:57,200 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 12:41:57,200 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:41:57,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:41:57,201 INFO L82 PathProgramCache]: Analyzing trace with hash 30555541, now seen corresponding path program 1 times [2020-10-13 12:41:57,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:41:57,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1662045088] [2020-10-13 12:41:57,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:41:57,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:57,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:57,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:57,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:41:59,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:41:59,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-13 12:41:59,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:41:59,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2349 [2020-10-13 12:41:59,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:41:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:41:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-13 12:41:59,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 12:41:59,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:41:59,979 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:41:59,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:41:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:41:59,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:00,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:00,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:00,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:00,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 12:42:00,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:00,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:00,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:00,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:00,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:00,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:42:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:00,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:00,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:00,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:00,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:00,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:42:00,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:00,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:00,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:00,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:00,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:00,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:42:00,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:00,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:00,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:00,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:00,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:00,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:00,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:00,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:00,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:00,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:00,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:00,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:42:00,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:00,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:00,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:00,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:00,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:00,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:42:00,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:00,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:00,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:00,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:00,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:00,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:42:00,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:00,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:00,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:00,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:00,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:00,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:00,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:00,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:00,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:00,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:00,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:00,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 12:42:00,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:00,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:00,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:00,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:00,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:00,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:42:00,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:00,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:00,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:00,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:00,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:00,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-13 12:42:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:00,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:00,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:00,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:00,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:00,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:00,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:00,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:00,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:00,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:00,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:00,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-13 12:42:00,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:00,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:00,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:00,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:00,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:00,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:42:00,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:00,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:00,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:00,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:00,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:00,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:42:00,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1662045088] [2020-10-13 12:42:00,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:42:00,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 12:42:00,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333316826] [2020-10-13 12:42:00,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 12:42:00,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:42:00,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 12:42:00,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 12:42:00,100 INFO L87 Difference]: Start difference. First operand 115 states and 135 transitions. Second operand 4 states. [2020-10-13 12:42:00,608 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:42:01,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:42:01,412 INFO L93 Difference]: Finished difference Result 195 states and 239 transitions. [2020-10-13 12:42:01,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 12:42:01,413 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-10-13 12:42:01,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:42:01,417 INFO L225 Difference]: With dead ends: 195 [2020-10-13 12:42:01,418 INFO L226 Difference]: Without dead ends: 132 [2020-10-13 12:42:01,421 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 12:42:01,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-10-13 12:42:01,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 106. [2020-10-13 12:42:01,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-10-13 12:42:01,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 123 transitions. [2020-10-13 12:42:01,470 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 123 transitions. Word has length 53 [2020-10-13 12:42:01,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:42:01,471 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 123 transitions. [2020-10-13 12:42:01,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 12:42:01,471 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 123 transitions. [2020-10-13 12:42:01,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-13 12:42:01,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:42:01,476 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:42:01,476 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 12:42:01,476 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:42:01,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:42:01,477 INFO L82 PathProgramCache]: Analyzing trace with hash -150591273, now seen corresponding path program 1 times [2020-10-13 12:42:01,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:42:01,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1825235529] [2020-10-13 12:42:01,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:42:01,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:01,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:01,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:02,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:02,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-10-13 12:42:02,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:42:02,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1148 [2020-10-13 12:42:02,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:02,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 12:42:02,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:02,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-13 12:42:02,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:42:03,008 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:42:03,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:42:03,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:03,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:03,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:03,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:03,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:03,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-13 12:42:03,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:03,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:03,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:03,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:42:03,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:03,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:42:03,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:03,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:03,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:03,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:03,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:03,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:03,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:03,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:03,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:03,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:42:03,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:03,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:42:03,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:03,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:03,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:03,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:03,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:03,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:03,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:03,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:03,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:03,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:42:03,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:03,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:42:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:03,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:03,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:03,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:03,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:03,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:42:03,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:03,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:03,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:03,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:42:03,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:03,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:42:03,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:03,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:03,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:03,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:03,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:03,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:03,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:03,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:03,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:03,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:42:03,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:03,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-13 12:42:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:03,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:03,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:03,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:03,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:03,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:03,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:03,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:03,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:03,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:03,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:03,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-13 12:42:03,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:03,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:03,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:03,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:03,153 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:03,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:03,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:03,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:03,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:03,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:03,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:03,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 12:42:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:03,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:03,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:03,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:03,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:03,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:03,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:03,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:03,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:03,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:03,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:42:03,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:42:03,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1825235529] [2020-10-13 12:42:03,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:42:03,172 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-13 12:42:03,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644757731] [2020-10-13 12:42:03,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 12:42:03,173 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:42:03,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 12:42:03,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 12:42:03,174 INFO L87 Difference]: Start difference. First operand 106 states and 123 transitions. Second operand 4 states. [2020-10-13 12:42:03,526 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:42:04,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:42:04,808 INFO L93 Difference]: Finished difference Result 306 states and 379 transitions. [2020-10-13 12:42:04,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 12:42:04,811 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-10-13 12:42:04,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:42:04,815 INFO L225 Difference]: With dead ends: 306 [2020-10-13 12:42:04,816 INFO L226 Difference]: Without dead ends: 224 [2020-10-13 12:42:04,818 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 12:42:04,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-10-13 12:42:04,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 178. [2020-10-13 12:42:04,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-10-13 12:42:04,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 213 transitions. [2020-10-13 12:42:04,913 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 213 transitions. Word has length 58 [2020-10-13 12:42:04,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:42:04,913 INFO L479 AbstractCegarLoop]: Abstraction has 178 states and 213 transitions. [2020-10-13 12:42:04,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 12:42:04,913 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 213 transitions. [2020-10-13 12:42:04,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-13 12:42:04,915 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:42:04,915 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 12:42:04,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 12:42:04,916 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:42:04,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:42:04,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1860592830, now seen corresponding path program 1 times [2020-10-13 12:42:04,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:42:04,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1125608487] [2020-10-13 12:42:04,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:42:04,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:04,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:05,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:05,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-13 12:42:05,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:05,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 825 [2020-10-13 12:42:05,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:05,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-13 12:42:05,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:05,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 12:42:05,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:06,078 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-10-13 12:42:06,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:42:06,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:06,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:06,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:06,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:06,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:06,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 12:42:06,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:06,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:06,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:06,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 12:42:06,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:06,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-13 12:42:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:06,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:06,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:06,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:06,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:06,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:42:06,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:06,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:06,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:06,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:42:06,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:06,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:42:06,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:06,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:06,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:06,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:06,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:06,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:42:06,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:06,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:06,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:06,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:42:06,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:06,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-13 12:42:06,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:06,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:06,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:06,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:06,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:06,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:06,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:06,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:06,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:06,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:42:06,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:06,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-13 12:42:06,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:06,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:06,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:06,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:42:06,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:06,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:42:06,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:06,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:06,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:06,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-13 12:42:06,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:06,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-13 12:42:06,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:06,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:06,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:06,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:42:06,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:06,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:42:06,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:06,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:06,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:06,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:42:06,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:06,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-13 12:42:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:06,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:06,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:06,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:06,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:06,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:42:06,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:06,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:42:06,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:06,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:42:06,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:06,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 12:42:06,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:06,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:06,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:06,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:06,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:06,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:42:06,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:06,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:42:06,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:42:06,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-13 12:42:06,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:06,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-13 12:42:06,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:42:06,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:42:06,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:42:06,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 12:42:06,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:42:06,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:42:06,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:42:06,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:42:06,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 12:42:06,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:42:06,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:42:06,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:42:06,273 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1125608487] [2020-10-13 12:42:06,273 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:42:06,273 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-13 12:42:06,274 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820688136] [2020-10-13 12:42:06,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:42:06,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:42:06,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:42:06,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:42:06,275 INFO L87 Difference]: Start difference. First operand 178 states and 213 transitions. Second operand 8 states. [2020-10-13 12:42:06,690 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-10-13 12:42:08,129 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-10-13 12:42:08,420 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:42:08,649 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-10-13 12:42:08,885 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-10-13 12:42:09,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:42:09,390 INFO L93 Difference]: Finished difference Result 549 states and 724 transitions. [2020-10-13 12:42:09,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-13 12:42:09,390 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 63 [2020-10-13 12:42:09,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:42:09,397 INFO L225 Difference]: With dead ends: 549 [2020-10-13 12:42:09,398 INFO L226 Difference]: Without dead ends: 395 [2020-10-13 12:42:09,404 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-10-13 12:42:09,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-10-13 12:42:09,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 331. [2020-10-13 12:42:09,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2020-10-13 12:42:09,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 407 transitions. [2020-10-13 12:42:09,500 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 407 transitions. Word has length 63 [2020-10-13 12:42:09,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:42:09,501 INFO L479 AbstractCegarLoop]: Abstraction has 331 states and 407 transitions. [2020-10-13 12:42:09,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:42:09,501 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 407 transitions. [2020-10-13 12:42:09,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-13 12:42:09,503 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:42:09,504 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 12:42:09,504 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 12:42:09,504 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:42:09,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:42:09,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1880541084, now seen corresponding path program 1 times [2020-10-13 12:42:09,505 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:42:09,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1029739134] [2020-10-13 12:42:09,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:42:09,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 12:42:09,549 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 12:42:09,549 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 12:42:09,554 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 12:42:09,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:42:09 BoogieIcfgContainer [2020-10-13 12:42:09,592 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 12:42:09,594 INFO L168 Benchmark]: Toolchain (without parser) took 18806.65 ms. Allocated memory was 142.1 MB in the beginning and 545.3 MB in the end (delta: 403.2 MB). Free memory was 100.7 MB in the beginning and 367.9 MB in the end (delta: -267.2 MB). Peak memory consumption was 136.0 MB. Max. memory is 7.1 GB. [2020-10-13 12:42:09,598 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 142.1 MB. Free memory was 119.6 MB in the beginning and 119.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 12:42:09,600 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.01 ms. Allocated memory was 142.1 MB in the beginning and 202.9 MB in the end (delta: 60.8 MB). Free memory was 100.5 MB in the beginning and 172.5 MB in the end (delta: -72.0 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2020-10-13 12:42:09,608 INFO L168 Benchmark]: Boogie Preprocessor took 98.93 ms. Allocated memory is still 202.9 MB. Free memory was 172.5 MB in the beginning and 168.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-10-13 12:42:09,609 INFO L168 Benchmark]: RCFGBuilder took 1137.39 ms. Allocated memory was 202.9 MB in the beginning and 233.8 MB in the end (delta: 30.9 MB). Free memory was 168.2 MB in the beginning and 200.1 MB in the end (delta: -32.0 MB). Peak memory consumption was 87.4 MB. Max. memory is 7.1 GB. [2020-10-13 12:42:09,611 INFO L168 Benchmark]: TraceAbstraction took 16891.39 ms. Allocated memory was 233.8 MB in the beginning and 545.3 MB in the end (delta: 311.4 MB). Free memory was 198.6 MB in the beginning and 367.9 MB in the end (delta: -169.3 MB). Peak memory consumption was 142.2 MB. Max. memory is 7.1 GB. [2020-10-13 12:42:09,617 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 142.1 MB. Free memory was 119.6 MB in the beginning and 119.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 673.01 ms. Allocated memory was 142.1 MB in the beginning and 202.9 MB in the end (delta: 60.8 MB). Free memory was 100.5 MB in the beginning and 172.5 MB in the end (delta: -72.0 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.93 ms. Allocated memory is still 202.9 MB. Free memory was 172.5 MB in the beginning and 168.2 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1137.39 ms. Allocated memory was 202.9 MB in the beginning and 233.8 MB in the end (delta: 30.9 MB). Free memory was 168.2 MB in the beginning and 200.1 MB in the end (delta: -32.0 MB). Peak memory consumption was 87.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16891.39 ms. Allocated memory was 233.8 MB in the beginning and 545.3 MB in the end (delta: 311.4 MB). Free memory was 198.6 MB in the beginning and 367.9 MB in the end (delta: -169.3 MB). Peak memory consumption was 142.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int cleanupTimeShifts = 4; [L322] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L596] int pumpRunning = 0; [L597] int systemActive = 1; [L806] int waterLevel = 1; [L807] int methaneLevelCritical = 0; [L130] int retValue_acc ; [L131] int tmp ; [L135] FCALL select_helpers() [L136] FCALL select_features() [L137] CALL, EXPR valid_product() [L796] int retValue_acc ; [L799] retValue_acc = 1 [L800] return (retValue_acc); [L137] RET, EXPR valid_product() [L137] tmp = valid_product() [L139] COND TRUE \read(tmp) [L141] FCALL setup() [L142] CALL runTest() [L121] CALL test() [L522] int splverifierCounter ; [L523] int tmp ; [L524] int tmp___0 ; [L525] int tmp___1 ; [L526] int tmp___2 ; [L529] splverifierCounter = 0 [L531] COND TRUE 1 [L533] COND TRUE splverifierCounter < 4 [L539] tmp = __VERIFIER_nondet_int() [L541] COND TRUE \read(tmp) [L543] CALL waterRise() [L824] COND TRUE waterLevel < 2 [L825] waterLevel = waterLevel + 1 [L543] RET waterRise() [L549] tmp___0 = __VERIFIER_nondet_int() [L551] COND FALSE !(\read(tmp___0)) [L559] tmp___2 = __VERIFIER_nondet_int() [L561] COND FALSE !(\read(tmp___2)) [L567] tmp___1 = __VERIFIER_nondet_int() [L569] COND TRUE \read(tmp___1) [L571] CALL stopSystem() [L750] COND FALSE !(\read(pumpRunning)) [L757] systemActive = 0 [L571] RET stopSystem() [L578] CALL timeShift() [L604] COND FALSE !(\read(pumpRunning)) [L611] COND FALSE !(\read(systemActive)) [L619] CALL __utac_acc__Specification3_spec__1() [L887] int tmp ; [L888] int tmp___0 ; [L889] int tmp___1 ; [L893] CALL, EXPR isMethaneLevelCritical() [L845] int retValue_acc ; [L848] retValue_acc = methaneLevelCritical [L849] return (retValue_acc); [L893] RET, EXPR isMethaneLevelCritical() [L893] tmp = isMethaneLevelCritical() [L895] COND FALSE !(\read(tmp)) [L899] CALL, EXPR getWaterLevel() [L877] int retValue_acc ; [L880] retValue_acc = waterLevel [L881] return (retValue_acc); [L899] RET, EXPR getWaterLevel() [L899] tmp___0 = getWaterLevel() [L901] COND TRUE tmp___0 == 2 [L903] CALL, EXPR isPumpRunning() [L702] int retValue_acc ; [L705] retValue_acc = pumpRunning [L706] return (retValue_acc); [L903] RET, EXPR isPumpRunning() [L903] tmp___1 = isPumpRunning() [L905] COND FALSE !(\read(tmp___1)) [L909] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 224 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 7.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 442 SDtfs, 590 SDslu, 243 SDs, 0 SdLazy, 1061 SolverSat, 396 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=331occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 169 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 8.4s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 61414 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...