/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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=DEEPEST --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 language data_model -i ../../../trunk/examples/svcomp/product-lines/elevator_spec3_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 21:01:13,600 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 21:01:13,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 21:01:13,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 21:01:13,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 21:01:13,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 21:01:13,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 21:01:13,646 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 21:01:13,648 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 21:01:13,649 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 21:01:13,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 21:01:13,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 21:01:13,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 21:01:13,654 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 21:01:13,655 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 21:01:13,657 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 21:01:13,658 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 21:01:13,659 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 21:01:13,676 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 21:01:13,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 21:01:13,685 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 21:01:13,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 21:01:13,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 21:01:13,689 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 21:01:13,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 21:01:13,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 21:01:13,698 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 21:01:13,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 21:01:13,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 21:01:13,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 21:01:13,707 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 21:01:13,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 21:01:13,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 21:01:13,711 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 21:01:13,712 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 21:01:13,712 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 21:01:13,713 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 21:01:13,713 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 21:01:13,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 21:01:13,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 21:01:13,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 21:01:13,717 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 [2020-10-27 21:01:13,778 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 21:01:13,778 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 21:01:13,781 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 21:01:13,781 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 21:01:13,781 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 21:01:13,782 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 21:01:13,784 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 21:01:13,784 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 21:01:13,784 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 21:01:13,784 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 21:01:13,784 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 21:01:13,785 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 21:01:13,786 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 21:01:13,786 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 21:01:13,787 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 21:01:13,787 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 21:01:13,787 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 21:01:13,787 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 21:01:13,788 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 21:01:13,788 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 21:01:13,788 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 21:01:13,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 21:01:13,789 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 21:01:13,789 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 21:01:13,789 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 21:01:13,789 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 21:01:13,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 21:01:13,790 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 21:01:13,790 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 21:01:13,790 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 21:01:14,220 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 21:01:14,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 21:01:14,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 21:01:14,258 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 21:01:14,259 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 21:01:14,260 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec3_product18.cil.c [2020-10-27 21:01:14,345 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/63ae4e8e9/371db85d70094790971f2d417a288a63/FLAG72cf524da [2020-10-27 21:01:15,214 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 21:01:15,215 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/elevator_spec3_product18.cil.c [2020-10-27 21:01:15,237 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/63ae4e8e9/371db85d70094790971f2d417a288a63/FLAG72cf524da [2020-10-27 21:01:15,368 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/63ae4e8e9/371db85d70094790971f2d417a288a63 [2020-10-27 21:01:15,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 21:01:15,377 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 21:01:15,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 21:01:15,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 21:01:15,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 21:01:15,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 09:01:15" (1/1) ... [2020-10-27 21:01:15,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55da7b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:01:15, skipping insertion in model container [2020-10-27 21:01:15,391 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 09:01:15" (1/1) ... [2020-10-27 21:01:15,399 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 21:01:15,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 21:01:16,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 21:01:16,166 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 21:01:16,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 21:01:16,354 INFO L208 MainTranslator]: Completed translation [2020-10-27 21:01:16,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:01:16 WrapperNode [2020-10-27 21:01:16,355 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 21:01:16,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 21:01:16,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 21:01:16,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 21:01:16,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:01:16" (1/1) ... [2020-10-27 21:01:16,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:01:16" (1/1) ... [2020-10-27 21:01:16,401 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:01:16" (1/1) ... [2020-10-27 21:01:16,401 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:01:16" (1/1) ... [2020-10-27 21:01:16,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:01:16" (1/1) ... [2020-10-27 21:01:16,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:01:16" (1/1) ... [2020-10-27 21:01:16,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:01:16" (1/1) ... [2020-10-27 21:01:16,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 21:01:16,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 21:01:16,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 21:01:16,526 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 21:01:16,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:01:16" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 21:01:16,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 21:01:16,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 21:01:16,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-27 21:01:16,627 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 21:01:16,627 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-27 21:01:16,628 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-27 21:01:16,628 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-27 21:01:16,628 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-27 21:01:16,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-27 21:01:16,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-27 21:01:16,628 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-27 21:01:16,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-27 21:01:16,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-27 21:01:16,629 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-27 21:01:16,629 INFO L138 BoogieDeclarations]: Found implementation of procedure initFloors [2020-10-27 21:01:16,629 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2020-10-27 21:01:16,629 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2020-10-27 21:01:16,629 INFO L138 BoogieDeclarations]: Found implementation of procedure callOnFloor [2020-10-27 21:01:16,630 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2020-10-27 21:01:16,630 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2020-10-27 21:01:16,630 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2020-10-27 21:01:16,630 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2020-10-27 21:01:16,630 INFO L138 BoogieDeclarations]: Found implementation of procedure get_nondetMinMax07 [2020-10-27 21:01:16,630 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2020-10-27 21:01:16,630 INFO L138 BoogieDeclarations]: Found implementation of procedure aliceCall [2020-10-27 21:01:16,631 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2020-10-27 21:01:16,631 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckCall [2020-10-27 21:01:16,631 INFO L138 BoogieDeclarations]: Found implementation of procedure monicaCall [2020-10-27 21:01:16,631 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2020-10-27 21:01:16,631 INFO L138 BoogieDeclarations]: Found implementation of procedure threeTS [2020-10-27 21:01:16,631 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-27 21:01:16,632 INFO L138 BoogieDeclarations]: Found implementation of procedure randomSequenceOfActions [2020-10-27 21:01:16,632 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest_Simple [2020-10-27 21:01:16,632 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification1 [2020-10-27 21:01:16,632 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-27 21:01:16,632 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification3 [2020-10-27 21:01:16,632 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-27 21:01:16,632 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-27 21:01:16,633 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 21:01:16,633 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-27 21:01:16,633 INFO L138 BoogieDeclarations]: Found implementation of procedure initTopDown [2020-10-27 21:01:16,633 INFO L138 BoogieDeclarations]: Found implementation of procedure initBottomUp [2020-10-27 21:01:16,633 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2020-10-27 21:01:16,633 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator__wrappee__base [2020-10-27 21:01:16,633 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2020-10-27 21:01:16,634 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator__wrappee__base [2020-10-27 21:01:16,634 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2020-10-27 21:01:16,634 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2020-10-27 21:01:16,634 INFO L138 BoogieDeclarations]: Found implementation of procedure resetFloorButton [2020-10-27 21:01:16,634 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2020-10-27 21:01:16,634 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2020-10-27 21:01:16,634 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2020-10-27 21:01:16,634 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentHeading [2020-10-27 21:01:16,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2020-10-27 21:01:16,635 INFO L138 BoogieDeclarations]: Found implementation of procedure anyStopRequested [2020-10-27 21:01:16,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isIdle [2020-10-27 21:01:16,635 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2020-10-27 21:01:16,635 INFO L138 BoogieDeclarations]: Found implementation of procedure isAnyLiftButtonPressed [2020-10-27 21:01:16,635 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2020-10-27 21:01:16,635 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor [2020-10-27 21:01:16,636 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2020-10-27 21:01:16,636 INFO L138 BoogieDeclarations]: Found implementation of procedure processWaitingOnFloor [2020-10-27 21:01:16,636 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__weight [2020-10-27 21:01:16,636 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-27 21:01:16,636 INFO L138 BoogieDeclarations]: Found implementation of procedure printState__wrappee__weight [2020-10-27 21:01:16,636 INFO L138 BoogieDeclarations]: Found implementation of procedure printState [2020-10-27 21:01:16,637 INFO L138 BoogieDeclarations]: Found implementation of procedure existInLiftCallsInDirection [2020-10-27 21:01:16,637 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2020-10-27 21:01:16,637 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2020-10-27 21:01:16,637 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2020-10-27 21:01:16,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-27 21:01:16,637 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__2 [2020-10-27 21:01:16,638 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-27 21:01:16,638 INFO L138 BoogieDeclarations]: Found implementation of procedure spec1 [2020-10-27 21:01:16,638 INFO L138 BoogieDeclarations]: Found implementation of procedure spec14 [2020-10-27 21:01:16,638 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 21:01:16,638 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 21:01:16,638 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 21:01:16,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 21:01:16,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 21:01:16,639 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-27 21:01:16,639 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-27 21:01:16,639 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-27 21:01:16,639 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-27 21:01:16,639 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-27 21:01:16,640 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-27 21:01:16,640 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-27 21:01:16,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-27 21:01:16,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-27 21:01:16,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 21:01:16,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-27 21:01:16,641 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-27 21:01:16,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 21:01:16,641 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-27 21:01:16,641 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-27 21:01:16,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 21:01:16,641 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-27 21:01:16,641 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-27 21:01:16,642 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-27 21:01:16,642 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2020-10-27 21:01:16,642 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2020-10-27 21:01:16,642 INFO L130 BoogieDeclarations]: Found specification of procedure callOnFloor [2020-10-27 21:01:16,642 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2020-10-27 21:01:16,642 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2020-10-27 21:01:16,642 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2020-10-27 21:01:16,642 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2020-10-27 21:01:16,643 INFO L130 BoogieDeclarations]: Found specification of procedure initFloors [2020-10-27 21:01:16,643 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 21:01:16,643 INFO L130 BoogieDeclarations]: Found specification of procedure get_nondetMinMax07 [2020-10-27 21:01:16,643 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2020-10-27 21:01:16,643 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2020-10-27 21:01:16,643 INFO L130 BoogieDeclarations]: Found specification of procedure aliceCall [2020-10-27 21:01:16,643 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2020-10-27 21:01:16,644 INFO L130 BoogieDeclarations]: Found specification of procedure chuckCall [2020-10-27 21:01:16,644 INFO L130 BoogieDeclarations]: Found specification of procedure monicaCall [2020-10-27 21:01:16,644 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2020-10-27 21:01:16,644 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-27 21:01:16,644 INFO L130 BoogieDeclarations]: Found specification of procedure threeTS [2020-10-27 21:01:16,644 INFO L130 BoogieDeclarations]: Found specification of procedure isIdle [2020-10-27 21:01:16,644 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2020-10-27 21:01:16,645 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-27 21:01:16,645 INFO L130 BoogieDeclarations]: Found specification of procedure initTopDown [2020-10-27 21:01:16,645 INFO L130 BoogieDeclarations]: Found specification of procedure initBottomUp [2020-10-27 21:01:16,645 INFO L130 BoogieDeclarations]: Found specification of procedure randomSequenceOfActions [2020-10-27 21:01:16,645 INFO L130 BoogieDeclarations]: Found specification of procedure runTest_Simple [2020-10-27 21:01:16,645 INFO L130 BoogieDeclarations]: Found specification of procedure Specification1 [2020-10-27 21:01:16,645 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-27 21:01:16,646 INFO L130 BoogieDeclarations]: Found specification of procedure Specification3 [2020-10-27 21:01:16,646 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-27 21:01:16,646 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-27 21:01:16,646 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-27 21:01:16,646 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 21:01:16,646 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-27 21:01:16,646 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-27 21:01:16,647 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2020-10-27 21:01:16,647 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2020-10-27 21:01:16,647 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2020-10-27 21:01:16,647 INFO L130 BoogieDeclarations]: Found specification of procedure printState [2020-10-27 21:01:16,647 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2020-10-27 21:01:16,647 INFO L130 BoogieDeclarations]: Found specification of procedure isAnyLiftButtonPressed [2020-10-27 21:01:16,648 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2020-10-27 21:01:16,648 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2020-10-27 21:01:16,648 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2020-10-27 21:01:16,648 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator__wrappee__base [2020-10-27 21:01:16,648 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator__wrappee__base [2020-10-27 21:01:16,648 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2020-10-27 21:01:16,648 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2020-10-27 21:01:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure resetFloorButton [2020-10-27 21:01:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentHeading [2020-10-27 21:01:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure anyStopRequested [2020-10-27 21:01:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2020-10-27 21:01:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2020-10-27 21:01:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor [2020-10-27 21:01:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2020-10-27 21:01:16,649 INFO L130 BoogieDeclarations]: Found specification of procedure processWaitingOnFloor [2020-10-27 21:01:16,650 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__weight [2020-10-27 21:01:16,650 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-27 21:01:16,650 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__2 [2020-10-27 21:01:16,650 INFO L130 BoogieDeclarations]: Found specification of procedure printState__wrappee__weight [2020-10-27 21:01:16,650 INFO L130 BoogieDeclarations]: Found specification of procedure existInLiftCallsInDirection [2020-10-27 21:01:16,650 INFO L130 BoogieDeclarations]: Found specification of procedure spec1 [2020-10-27 21:01:16,650 INFO L130 BoogieDeclarations]: Found specification of procedure spec14 [2020-10-27 21:01:16,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 21:01:16,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 21:01:16,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 21:01:19,020 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 21:01:19,021 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-27 21:01:19,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 09:01:19 BoogieIcfgContainer [2020-10-27 21:01:19,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 21:01:19,026 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 21:01:19,026 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 21:01:19,030 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 21:01:19,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 09:01:15" (1/3) ... [2020-10-27 21:01:19,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@747833f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 09:01:19, skipping insertion in model container [2020-10-27 21:01:19,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 09:01:16" (2/3) ... [2020-10-27 21:01:19,031 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@747833f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 09:01:19, skipping insertion in model container [2020-10-27 21:01:19,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 09:01:19" (3/3) ... [2020-10-27 21:01:19,033 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec3_product18.cil.c [2020-10-27 21:01:19,045 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 21:01:19,052 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-27 21:01:19,066 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-27 21:01:19,114 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 21:01:19,114 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 21:01:19,114 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 21:01:19,115 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 21:01:19,115 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 21:01:19,115 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 21:01:19,115 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 21:01:19,115 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 21:01:19,163 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states. [2020-10-27 21:01:19,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-27 21:01:19,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 21:01:19,191 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 21:01:19,192 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 21:01:19,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 21:01:19,200 INFO L82 PathProgramCache]: Analyzing trace with hash 178434987, now seen corresponding path program 1 times [2020-10-27 21:01:19,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 21:01:19,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1236263363] [2020-10-27 21:01:19,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 21:01:19,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:01:19,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:01:20,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:01:20,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:01:22,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:01:23,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:01:24,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:01:24,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:01:24,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-27 21:01:24,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 21:01:24,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5071 [2020-10-27 21:01:24,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:01:24,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 21:01:24,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-27 21:01:24,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 21:01:24,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-27 21:01:25,934 WARN L193 SmtUtils]: Spent 948.00 ms on a formula simplification that was a NOOP. DAG size: 403 [2020-10-27 21:01:25,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 21:01:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:01:25,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:01:26,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:01:26,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:01:26,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:01:26,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-27 21:01:26,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:01:26,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:01:26,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:01:26,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:01:26,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 21:01:26,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:01:26,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:01:26,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:01:26,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:01:26,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:01:26,085 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:01:26,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:01:26,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:01:26,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:01:26,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:01:26,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:01:26,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:01:26,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 21:01:26,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:01:26,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:01:26,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:01:26,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:01:26,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:01:26,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:01:26,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:01:26,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:01:26,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:01:26,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:01:26,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:01:26,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 21:01:26,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:01:26,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:01:26,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:01:26,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:01:26,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:01:26,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 21:01:26,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:01:26,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:01:26,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:01:26,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:01:26,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-27 21:01:26,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 21:01:26,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:01:26,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:01:26,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:01:26,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:01:26,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:01:26,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:01:26,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:01:26,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:01:26,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:01:26,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:01:26,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:01:26,343 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-27 21:01:26,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 21:01:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:01:26,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:01:26,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:01:26,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 21:01:26,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:01:26,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 21:01:26,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:01:26,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:01:26,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:01:26,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:01:26,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:01:26,546 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 21:01:26,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:01:26,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:01:26,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:01:26,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:01:26,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:01:26,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:01:26,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 21:01:26,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:01:26,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:01:26,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:01:26,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:01:26,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:01:26,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 21:01:26,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:01:26,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:01:26,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:01:26,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:01:26,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-27 21:01:26,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 21:01:26,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-10-27 21:01:26,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:01:26,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 21:01:26,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 21:01:26,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 21:01:26,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:01:26,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:01:26,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:01:26,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:01:26,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:01:26,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 21:01:26,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:01:26,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 21:01:26,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:01:26,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 21:01:26,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:01:26,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:01:26,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:01:26,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 21:01:26,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:01:26,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:01:27,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:01:27,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:01:27,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 21:01:27,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 21:01:27,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-10-27 21:01:27,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:01:27,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:01:27,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 21:01:27,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 21:01:27,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 21:01:27,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 21:01:27,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:01:27,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:01:27,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:01:27,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 21:01:27,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:01:27,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 21:01:27,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:01:27,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:01:27,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:01:27,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 21:01:27,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:01:27,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-27 21:01:27,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:01:27,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:01:27,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:01:27,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 21:01:27,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:01:27,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 21:01:27,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:01:27,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:01:27,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 21:01:27,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:01:27,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:01:27,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:01:27,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:01:27,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:01:27,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:01:27,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:01:27,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:01:27,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:01:27,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:01:27,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:01:27,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:01:27,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:01:27,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:01:27,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:01:27,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:01:27,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:01:27,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:01:27,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:01:27,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:01:27,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 21:01:27,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:01:27,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:01:27,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:01:27,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:01:27,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 21:01:27,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-27 21:01:27,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:01:27,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:01:27,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:01:27,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:01:27,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:01:27,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 21:01:27,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:01:27,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:01:27,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:01:27,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:01:27,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 21:01:27,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-27 21:01:27,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:01:27,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:01:27,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:01:27,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:01:27,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:01:27,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:01:27,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:01:27,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:01:27,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:01:27,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:01:27,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:01:27,414 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-27 21:01:27,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1236263363] [2020-10-27 21:01:27,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 21:01:27,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 21:01:27,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956429442] [2020-10-27 21:01:27,424 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 21:01:27,424 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 21:01:27,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 21:01:27,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-27 21:01:27,442 INFO L87 Difference]: Start difference. First operand 785 states. Second operand 12 states. [2020-10-27 21:01:29,435 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 21:01:30,821 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 406 [2020-10-27 21:01:32,144 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 406 [2020-10-27 21:01:33,323 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 406 [2020-10-27 21:01:34,573 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 406 [2020-10-27 21:01:35,783 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 408 [2020-10-27 21:01:38,592 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 21:01:59,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 21:01:59,576 INFO L93 Difference]: Finished difference Result 1570 states and 2731 transitions. [2020-10-27 21:01:59,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-27 21:01:59,578 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 94 [2020-10-27 21:01:59,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 21:01:59,619 INFO L225 Difference]: With dead ends: 1570 [2020-10-27 21:01:59,619 INFO L226 Difference]: Without dead ends: 952 [2020-10-27 21:01:59,632 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2020-10-27 21:01:59,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2020-10-27 21:02:00,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 621. [2020-10-27 21:02:00,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 621 states. [2020-10-27 21:02:00,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 992 transitions. [2020-10-27 21:02:00,026 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 992 transitions. Word has length 94 [2020-10-27 21:02:00,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 21:02:00,027 INFO L481 AbstractCegarLoop]: Abstraction has 621 states and 992 transitions. [2020-10-27 21:02:00,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 21:02:00,027 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 992 transitions. [2020-10-27 21:02:00,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-27 21:02:00,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 21:02:00,037 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 21:02:00,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 21:02:00,038 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 21:02:00,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 21:02:00,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1449482109, now seen corresponding path program 1 times [2020-10-27 21:02:00,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 21:02:00,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [560216599] [2020-10-27 21:02:00,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 21:02:00,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:00,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:00,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:00,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:01,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:02,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:04,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:05,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:05,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:05,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 21:02:05,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 21:02:05,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-27 21:02:05,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:05,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 21:02:05,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 62 [2020-10-27 21:02:05,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 21:02:05,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:06,371 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 403 [2020-10-27 21:02:06,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 21:02:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:06,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:06,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:06,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:02:06,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:02:06,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-27 21:02:06,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:06,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:02:06,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:02:06,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:02:06,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:06,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:02:06,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:06,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:06,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:06,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:02:06,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:02:06,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:02:06,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:06,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:02:06,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:02:06,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:02:06,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:06,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 21:02:06,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:06,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:06,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:06,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:02:06,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:02:06,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:02:06,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:06,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:02:06,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:02:06,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:02:06,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:06,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 21:02:06,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:06,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:06,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:06,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:02:06,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:02:06,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:02:06,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:06,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:02:06,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:02:06,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:02:06,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:06,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 21:02:06,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:06,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:06,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:06,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:02:06,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:02:06,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:02:06,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:06,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:02:06,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:02:06,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:02:06,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:06,680 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-27 21:02:06,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 21:02:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:06,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:06,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:06,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 21:02:06,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:02:06,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-27 21:02:06,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:06,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:02:06,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:02:06,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:02:06,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:06,836 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 21:02:06,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:02:06,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:06,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:06,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:06,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:02:06,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:02:06,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 21:02:06,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:06,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:02:06,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:02:06,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:02:06,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:06,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 21:02:06,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:06,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:06,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:06,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:07,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:07,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:07,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-27 21:02:07,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 21:02:07,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 583 [2020-10-27 21:02:07,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:07,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 21:02:07,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-10-27 21:02:07,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-27 21:02:07,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:07,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:02:07,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:07,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:07,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:07,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:07,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:07,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 21:02:07,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 21:02:07,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-27 21:02:07,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:07,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 21:02:07,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 21:02:07,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 21:02:07,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:07,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 21:02:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:07,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:07,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:07,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:07,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 21:02:07,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 21:02:07,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-27 21:02:07,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:07,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 21:02:07,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 21:02:07,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 21:02:07,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:07,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-27 21:02:07,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:07,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:07,819 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:07,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 21:02:07,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:02:07,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 21:02:07,820 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:07,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 21:02:07,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:02:07,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 21:02:07,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:07,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 21:02:07,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:07,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:07,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:07,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 21:02:07,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:02:07,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 21:02:07,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:07,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:02:07,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 21:02:07,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:02:07,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:07,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:02:07,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:07,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:07,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:07,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:02:07,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:02:07,918 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:02:07,918 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:07,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:02:07,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:02:07,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:02:07,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:07,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:02:07,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:07,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:07,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:07,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:02:07,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:02:07,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:02:07,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:07,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:02:07,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:02:07,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:02:07,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:07,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 21:02:07,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:07,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:07,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:07,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:02:07,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:02:07,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:02:07,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:07,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:02:07,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:02:07,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:02:07,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:07,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 21:02:07,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:07,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:07,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:07,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:02:07,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:02:07,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:02:07,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:07,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:02:07,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:02:07,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:02:07,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:07,984 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-27 21:02:07,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [560216599] [2020-10-27 21:02:07,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 21:02:07,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-27 21:02:07,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519957331] [2020-10-27 21:02:07,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-27 21:02:07,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 21:02:07,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-27 21:02:07,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-10-27 21:02:07,988 INFO L87 Difference]: Start difference. First operand 621 states and 992 transitions. Second operand 15 states. [2020-10-27 21:02:09,762 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 21:02:11,116 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 414 [2020-10-27 21:02:12,387 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 418 [2020-10-27 21:02:13,722 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 406 [2020-10-27 21:02:14,922 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 408 [2020-10-27 21:02:16,191 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 407 [2020-10-27 21:02:17,502 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 409 [2020-10-27 21:02:18,861 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 406 [2020-10-27 21:02:21,745 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 21:02:45,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 21:02:45,021 INFO L93 Difference]: Finished difference Result 1535 states and 2640 transitions. [2020-10-27 21:02:45,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-27 21:02:45,022 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 95 [2020-10-27 21:02:45,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 21:02:45,033 INFO L225 Difference]: With dead ends: 1535 [2020-10-27 21:02:45,033 INFO L226 Difference]: Without dead ends: 927 [2020-10-27 21:02:45,038 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=185, Invalid=745, Unknown=0, NotChecked=0, Total=930 [2020-10-27 21:02:45,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2020-10-27 21:02:45,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 603. [2020-10-27 21:02:45,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 603 states. [2020-10-27 21:02:45,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 959 transitions. [2020-10-27 21:02:45,252 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 959 transitions. Word has length 95 [2020-10-27 21:02:45,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 21:02:45,252 INFO L481 AbstractCegarLoop]: Abstraction has 603 states and 959 transitions. [2020-10-27 21:02:45,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-27 21:02:45,252 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 959 transitions. [2020-10-27 21:02:45,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-27 21:02:45,254 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 21:02:45,254 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 21:02:45,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 21:02:45,255 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 21:02:45,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 21:02:45,255 INFO L82 PathProgramCache]: Analyzing trace with hash 901021999, now seen corresponding path program 1 times [2020-10-27 21:02:45,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 21:02:45,256 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1071985346] [2020-10-27 21:02:45,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 21:02:45,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:45,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:45,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:45,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:46,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:47,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:48,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:49,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:50,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:50,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 21:02:50,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 21:02:50,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5035 [2020-10-27 21:02:50,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:50,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:02:50,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-27 21:02:50,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 21:02:50,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:51,554 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 403 [2020-10-27 21:02:51,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 21:02:51,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:51,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:51,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:51,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:02:51,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:02:51,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-27 21:02:51,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:51,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:02:51,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:02:51,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:02:51,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:51,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:02:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:51,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:51,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:51,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:02:51,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:02:51,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:02:51,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:51,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:02:51,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:02:51,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:02:51,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:51,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 21:02:51,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:51,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:51,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:51,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:02:51,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:02:51,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:02:51,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:51,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:02:51,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:02:51,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:02:51,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:51,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 21:02:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:51,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:51,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:51,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:02:51,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:02:51,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:02:51,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:51,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:02:51,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:02:51,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:02:51,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:51,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 21:02:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:51,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:51,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:51,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:02:51,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:02:51,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:02:51,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:51,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:02:51,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:02:51,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:02:51,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:51,859 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-27 21:02:51,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 21:02:51,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:51,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:51,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:51,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 21:02:51,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:02:51,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 21:02:51,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:51,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:02:51,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:02:51,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:02:51,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:52,044 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 21:02:52,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:02:52,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:52,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:52,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:52,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:02:52,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:02:52,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 21:02:52,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:52,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:02:52,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:02:52,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:02:52,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:52,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 21:02:52,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:52,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:52,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:52,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:52,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:52,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:52,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-27 21:02:52,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 21:02:52,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 396 [2020-10-27 21:02:52,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:52,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:02:52,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 21:02:52,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 21:02:52,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:52,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:02:52,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:52,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:52,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:52,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 21:02:52,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:02:52,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:02:52,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:52,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:02:52,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:02:52,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:02:52,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:52,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 21:02:52,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:52,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:52,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:52,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:52,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 21:02:52,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 21:02:52,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-27 21:02:52,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:52,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:02:52,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-10-27 21:02:52,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 21:02:52,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:52,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-27 21:02:52,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:52,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:52,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:52,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 21:02:52,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:02:52,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 21:02:52,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:52,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:02:52,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 21:02:52,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 21:02:52,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:52,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 21:02:52,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:52,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:52,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:52,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 21:02:52,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:02:52,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 21:02:52,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:52,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:02:52,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 21:02:52,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:02:52,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:52,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:02:52,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:52,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:52,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:52,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:02:52,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:02:52,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:02:52,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:52,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:02:52,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:02:52,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:02:52,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:52,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:02:52,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:52,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:52,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:52,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:02:52,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:02:52,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:02:52,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:52,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:02:52,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:02:52,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:02:52,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:52,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-27 21:02:52,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:52,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:52,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:52,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:02:52,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:02:52,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:02:52,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:52,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:02:52,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:02:52,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:02:52,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:52,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-27 21:02:52,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:02:52,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:02:52,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:02:52,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:02:52,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:02:52,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:02:52,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:02:52,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:02:52,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:02:52,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:02:52,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:02:52,718 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-27 21:02:52,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1071985346] [2020-10-27 21:02:52,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 21:02:52,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 21:02:52,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847314814] [2020-10-27 21:02:52,720 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 21:02:52,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 21:02:52,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 21:02:52,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-27 21:02:52,721 INFO L87 Difference]: Start difference. First operand 603 states and 959 transitions. Second operand 10 states. [2020-10-27 21:02:54,634 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 21:02:55,992 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 406 [2020-10-27 21:02:57,309 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 406 [2020-10-27 21:02:59,285 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 21:03:19,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 21:03:19,176 INFO L93 Difference]: Finished difference Result 1504 states and 2584 transitions. [2020-10-27 21:03:19,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 21:03:19,178 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 95 [2020-10-27 21:03:19,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 21:03:19,187 INFO L225 Difference]: With dead ends: 1504 [2020-10-27 21:03:19,188 INFO L226 Difference]: Without dead ends: 933 [2020-10-27 21:03:19,192 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2020-10-27 21:03:19,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 933 states. [2020-10-27 21:03:19,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 933 to 606. [2020-10-27 21:03:19,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 606 states. [2020-10-27 21:03:19,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 606 states to 606 states and 963 transitions. [2020-10-27 21:03:19,379 INFO L78 Accepts]: Start accepts. Automaton has 606 states and 963 transitions. Word has length 95 [2020-10-27 21:03:19,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 21:03:19,379 INFO L481 AbstractCegarLoop]: Abstraction has 606 states and 963 transitions. [2020-10-27 21:03:19,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 21:03:19,379 INFO L276 IsEmpty]: Start isEmpty. Operand 606 states and 963 transitions. [2020-10-27 21:03:19,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-27 21:03:19,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 21:03:19,382 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 21:03:19,382 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 21:03:19,383 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 21:03:19,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 21:03:19,383 INFO L82 PathProgramCache]: Analyzing trace with hash -689633595, now seen corresponding path program 1 times [2020-10-27 21:03:19,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 21:03:19,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [987982017] [2020-10-27 21:03:19,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 21:03:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:03:19,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:03:19,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:03:19,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:03:20,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:03:21,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:03:22,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:03:24,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:03:24,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-27 21:03:24,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-27 21:03:24,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-27 21:03:24,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:03:24,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 21:03:24,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-27 21:03:24,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 21:03:24,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:03:25,730 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 403 [2020-10-27 21:03:25,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 21:03:25,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:03:25,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:03:25,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:03:25,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:03:25,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:03:25,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-27 21:03:25,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:03:25,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:03:25,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:03:25,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:03:25,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:03:25,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:03:25,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:03:25,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:03:25,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:03:25,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:03:25,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:03:25,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:03:25,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:03:25,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:03:25,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:03:25,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:03:25,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:03:25,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 21:03:25,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:03:25,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:03:25,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:03:25,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:03:25,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:03:25,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:03:25,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:03:25,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:03:25,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:03:25,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:03:25,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:03:25,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 21:03:25,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:03:25,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:03:25,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:03:25,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:03:25,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:03:25,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:03:25,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:03:25,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:03:25,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:03:25,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:03:25,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:03:25,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 21:03:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:03:25,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:03:25,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:03:25,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:03:25,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:03:25,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:03:25,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:03:25,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:03:25,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:03:25,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:03:25,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:03:26,112 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-27 21:03:26,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 21:03:26,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:03:26,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:03:26,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:03:26,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 21:03:26,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:03:26,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 21:03:26,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:03:26,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:03:26,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:03:26,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:03:26,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:03:26,289 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 21:03:26,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:03:26,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:03:26,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:03:26,302 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:03:26,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:03:26,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:03:26,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 21:03:26,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:03:26,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:03:26,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:03:26,303 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:03:26,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:03:26,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 21:03:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:03:26,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:03:26,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:03:26,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:03:26,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 21:03:26,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 21:03:26,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-27 21:03:26,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:03:26,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 21:03:26,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-27 21:03:26,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-27 21:03:26,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:03:26,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:03:26,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:03:26,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:03:26,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:03:26,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 21:03:26,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:03:26,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 21:03:26,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:03:26,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 21:03:26,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:03:26,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:03:26,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:03:26,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 21:03:26,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:03:26,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:03:26,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:03:26,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:03:26,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 21:03:26,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 21:03:26,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-27 21:03:26,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:03:26,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:03:26,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 21:03:26,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 21:03:26,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:03:26,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-10-27 21:03:26,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:03:26,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:03:26,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:03:26,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-27 21:03:26,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:03:26,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 21:03:26,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:03:26,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:03:26,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:03:26,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 21:03:26,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:03:26,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 21:03:26,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:03:26,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:03:26,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:03:26,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 21:03:26,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:03:26,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 21:03:26,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:03:26,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:03:26,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 21:03:26,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:03:26,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:03:26,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:03:26,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:03:26,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:03:26,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:03:26,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:03:26,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:03:26,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:03:26,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:03:26,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:03:26,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:03:26,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:03:26,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:03:26,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:03:26,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:03:26,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:03:26,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:03:26,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:03:26,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:03:26,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:03:26,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:03:26,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:03:26,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:03:26,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:03:26,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:03:26,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 21:03:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:03:26,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:03:26,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:03:26,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:03:26,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:03:26,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:03:26,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:03:26,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:03:26,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:03:26,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:03:26,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:03:26,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 21:03:26,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:03:26,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:03:26,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:03:26,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:03:26,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:03:26,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:03:26,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:03:26,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:03:26,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:03:26,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:03:26,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:03:26,855 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-27 21:03:26,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [987982017] [2020-10-27 21:03:26,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 21:03:26,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-27 21:03:26,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680355242] [2020-10-27 21:03:26,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 21:03:26,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 21:03:26,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 21:03:26,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-10-27 21:03:26,858 INFO L87 Difference]: Start difference. First operand 606 states and 963 transitions. Second operand 12 states. [2020-10-27 21:03:28,624 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 21:03:30,003 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 406 [2020-10-27 21:03:31,188 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 406 [2020-10-27 21:03:32,355 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 407 [2020-10-27 21:03:33,513 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 406 [2020-10-27 21:03:34,702 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 408 [2020-10-27 21:03:37,354 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 21:04:01,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 21:04:01,299 INFO L93 Difference]: Finished difference Result 1507 states and 2585 transitions. [2020-10-27 21:04:01,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-27 21:04:01,300 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 96 [2020-10-27 21:04:01,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 21:04:01,308 INFO L225 Difference]: With dead ends: 1507 [2020-10-27 21:04:01,308 INFO L226 Difference]: Without dead ends: 919 [2020-10-27 21:04:01,311 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2020-10-27 21:04:01,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2020-10-27 21:04:01,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 597. [2020-10-27 21:04:01,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 597 states. [2020-10-27 21:04:01,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 946 transitions. [2020-10-27 21:04:01,495 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 946 transitions. Word has length 96 [2020-10-27 21:04:01,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 21:04:01,496 INFO L481 AbstractCegarLoop]: Abstraction has 597 states and 946 transitions. [2020-10-27 21:04:01,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 21:04:01,496 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 946 transitions. [2020-10-27 21:04:01,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-27 21:04:01,497 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 21:04:01,497 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 21:04:01,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 21:04:01,498 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 21:04:01,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 21:04:01,498 INFO L82 PathProgramCache]: Analyzing trace with hash -548267641, now seen corresponding path program 1 times [2020-10-27 21:04:01,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 21:04:01,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [637754295] [2020-10-27 21:04:01,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 21:04:01,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:01,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:01,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:01,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:02,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:03,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:03,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:04,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:06,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:06,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-27 21:04:06,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-27 21:04:06,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-27 21:04:06,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:06,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:04:06,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-27 21:04:06,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 21:04:06,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:07,844 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 403 [2020-10-27 21:04:07,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 21:04:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:07,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:07,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:07,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:04:07,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:04:07,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 21:04:07,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:07,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:04:07,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:04:07,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:04:07,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:07,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:04:07,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:07,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:07,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:07,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:04:07,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:04:07,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:04:07,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:07,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:04:07,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:04:07,912 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:04:07,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:07,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 21:04:07,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:07,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:07,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:07,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:04:07,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:04:07,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:04:07,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:07,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:04:07,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:04:07,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:04:07,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:07,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 21:04:07,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:07,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:07,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:07,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:04:07,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:04:07,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:04:07,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:07,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:04:07,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:04:07,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:04:07,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:07,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 21:04:07,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:07,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:07,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:07,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:04:07,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:04:07,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:04:07,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:07,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:04:07,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:04:07,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:04:07,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:08,170 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-27 21:04:08,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 21:04:08,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:08,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:08,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:08,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 21:04:08,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:04:08,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 21:04:08,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:08,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:04:08,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:04:08,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:04:08,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:08,343 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 21:04:08,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:04:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:08,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:08,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:08,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:04:08,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:04:08,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 21:04:08,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:08,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:04:08,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:04:08,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:04:08,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:08,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 21:04:08,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:08,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:08,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:08,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:08,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:08,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:08,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 21:04:08,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 21:04:08,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 246 [2020-10-27 21:04:08,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:08,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:04:08,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-27 21:04:08,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 21:04:08,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:08,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:04:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:08,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:08,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:08,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 21:04:08,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:04:08,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:04:08,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:08,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:04:08,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:04:08,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:04:08,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:08,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 21:04:08,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:08,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:08,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:08,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:08,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-27 21:04:08,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 21:04:08,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-27 21:04:08,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:08,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:04:08,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:04:08,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 21:04:08,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:08,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-27 21:04:08,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:08,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:08,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:08,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 21:04:08,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:04:08,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 21:04:08,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:08,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:04:08,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 21:04:08,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 21:04:08,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:08,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-27 21:04:08,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:08,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:08,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:08,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 21:04:08,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:04:08,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 21:04:08,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:08,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:04:08,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-27 21:04:08,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:04:08,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:08,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:04:08,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:08,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:08,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:08,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:04:08,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:04:08,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:04:08,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:08,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:04:08,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:04:08,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:04:08,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:08,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:04:08,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:08,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:08,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:08,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:04:08,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:04:08,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:04:08,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:08,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:04:08,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:04:08,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:04:08,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:08,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-27 21:04:08,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:08,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:08,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:08,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:04:08,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:04:08,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:04:08,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:08,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:04:08,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:04:08,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:04:08,821 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:08,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-27 21:04:08,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:08,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:08,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:08,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:04:08,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:04:08,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:04:08,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:08,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:04:08,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:04:08,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:04:08,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:08,856 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-27 21:04:08,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [637754295] [2020-10-27 21:04:08,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 21:04:08,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-27 21:04:08,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980207540] [2020-10-27 21:04:08,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 21:04:08,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 21:04:08,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 21:04:08,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-27 21:04:08,858 INFO L87 Difference]: Start difference. First operand 597 states and 946 transitions. Second operand 10 states. [2020-10-27 21:04:10,228 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 21:04:11,697 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification that was a NOOP. DAG size: 406 [2020-10-27 21:04:13,137 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 409 [2020-10-27 21:04:14,636 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 411 [2020-10-27 21:04:16,105 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 21:04:34,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 21:04:34,140 INFO L93 Difference]: Finished difference Result 1488 states and 2554 transitions. [2020-10-27 21:04:34,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-27 21:04:34,141 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 96 [2020-10-27 21:04:34,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 21:04:34,150 INFO L225 Difference]: With dead ends: 1488 [2020-10-27 21:04:34,150 INFO L226 Difference]: Without dead ends: 923 [2020-10-27 21:04:34,154 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-10-27 21:04:34,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 923 states. [2020-10-27 21:04:34,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 923 to 600. [2020-10-27 21:04:34,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2020-10-27 21:04:34,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 950 transitions. [2020-10-27 21:04:34,348 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 950 transitions. Word has length 96 [2020-10-27 21:04:34,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 21:04:34,349 INFO L481 AbstractCegarLoop]: Abstraction has 600 states and 950 transitions. [2020-10-27 21:04:34,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 21:04:34,349 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 950 transitions. [2020-10-27 21:04:34,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-27 21:04:34,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 21:04:34,351 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 21:04:34,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 21:04:34,351 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 21:04:34,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 21:04:34,352 INFO L82 PathProgramCache]: Analyzing trace with hash -606256757, now seen corresponding path program 1 times [2020-10-27 21:04:34,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 21:04:34,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1357192974] [2020-10-27 21:04:34,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 21:04:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:34,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:34,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:34,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:34,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:35,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:36,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:36,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:38,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:38,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:39,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:39,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:39,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-27 21:04:39,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-27 21:04:39,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5069 [2020-10-27 21:04:39,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:39,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:04:39,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-27 21:04:39,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 21:04:39,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:40,654 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 403 [2020-10-27 21:04:40,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 21:04:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:40,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:40,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:40,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:04:40,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:04:40,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-27 21:04:40,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:40,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:04:40,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:04:40,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:04:40,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:40,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:04:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:40,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:40,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:40,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:04:40,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:04:40,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:04:40,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:40,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:04:40,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:04:40,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:04:40,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:40,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-27 21:04:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:40,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:40,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:40,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:04:40,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:04:40,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:04:40,740 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:40,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:04:40,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:04:40,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:04:40,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:40,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-10-27 21:04:40,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:40,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:40,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:40,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:04:40,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:04:40,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:04:40,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:40,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:04:40,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:04:40,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:04:40,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:40,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-27 21:04:40,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:40,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:40,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:40,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-27 21:04:40,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:04:40,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:04:40,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:40,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:04:40,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:04:40,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:04:40,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:40,968 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2020-10-27 21:04:40,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 21:04:40,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:40,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:40,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:40,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 21:04:40,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:04:40,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 21:04:40,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:40,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:04:40,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:04:40,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:04:40,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:41,129 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-10-27 21:04:41,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:04:41,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:41,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:41,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:41,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:04:41,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:04:41,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 21:04:41,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:41,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:04:41,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:04:41,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:04:41,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:41,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 21:04:41,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:41,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:41,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:41,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:41,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:41,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:41,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:41,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-27 21:04:41,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 21:04:41,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 357 [2020-10-27 21:04:41,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:41,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:04:41,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 21:04:41,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 21:04:41,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:41,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:04:41,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:41,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:41,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:41,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 21:04:41,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:04:41,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:04:41,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:41,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:04:41,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:04:41,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:04:41,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:41,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2020-10-27 21:04:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:41,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:41,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:41,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:41,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 21:04:41,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 21:04:41,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 21:04:41,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:41,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:04:41,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-27 21:04:41,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-27 21:04:41,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:41,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:04:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:41,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:41,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:41,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 21:04:41,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:04:41,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 21:04:41,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:41,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 21:04:41,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-27 21:04:41,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-27 21:04:41,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:41,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-27 21:04:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:41,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:41,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:41,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-27 21:04:41,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:04:41,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 21:04:41,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:41,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:04:41,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:04:41,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 21:04:41,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:41,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-10-27 21:04:41,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:41,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:41,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:41,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:04:41,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:04:41,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:04:41,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:41,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:04:41,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:04:41,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:04:41,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:41,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 21:04:41,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:41,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:41,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:41,694 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:04:41,694 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:04:41,694 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:04:41,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:41,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:04:41,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:04:41,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:04:41,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:41,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 21:04:41,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:41,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:41,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:41,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:04:41,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:04:41,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-27 21:04:41,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:41,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 21:04:41,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 21:04:41,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 21:04:41,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:41,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-27 21:04:41,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 21:04:41,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 21:04:41,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 21:04:41,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 21:04:41,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 21:04:41,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-27 21:04:41,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 21:04:41,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 21:04:41,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 21:04:41,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 21:04:41,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 21:04:41,735 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-27 21:04:41,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1357192974] [2020-10-27 21:04:41,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 21:04:41,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-27 21:04:41,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076862903] [2020-10-27 21:04:41,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-27 21:04:41,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 21:04:41,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-27 21:04:41,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-10-27 21:04:41,737 INFO L87 Difference]: Start difference. First operand 600 states and 950 transitions. Second operand 11 states. [2020-10-27 21:04:43,602 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 405 [2020-10-27 21:04:44,094 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2020-10-27 21:04:45,558 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 408 [2020-10-27 21:04:46,946 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 409 [2020-10-27 21:04:47,779 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 21:04:49,660 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2020-10-27 21:04:50,085 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2020-10-27 21:04:52,677 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-10-27 21:04:54,869 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 109