./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product19.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d96f41c83679efe744540e7fde7918287d6cc79be28bb1ad9b63bf8e0d07ce19 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 21:42:07,660 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 21:42:07,716 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 21:42:07,720 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 21:42:07,720 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 21:42:07,747 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 21:42:07,747 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 21:42:07,748 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 21:42:07,748 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 21:42:07,750 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 21:42:07,750 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 21:42:07,750 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 21:42:07,751 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 21:42:07,752 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 21:42:07,752 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 21:42:07,753 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 21:42:07,753 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 21:42:07,753 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 21:42:07,754 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 21:42:07,754 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 21:42:07,754 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 21:42:07,754 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 21:42:07,756 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 21:42:07,756 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 21:42:07,757 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 21:42:07,757 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 21:42:07,757 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 21:42:07,757 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 21:42:07,757 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 21:42:07,757 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 21:42:07,758 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 21:42:07,758 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 21:42:07,758 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 21:42:07,759 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 21:42:07,759 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 21:42:07,760 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 21:42:07,760 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 21:42:07,760 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 21:42:07,760 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 21:42:07,761 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 21:42:07,761 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 21:42:07,762 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 21:42:07,762 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d96f41c83679efe744540e7fde7918287d6cc79be28bb1ad9b63bf8e0d07ce19 [2024-11-19 21:42:07,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 21:42:07,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 21:42:07,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 21:42:07,992 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 21:42:07,992 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 21:42:07,993 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product19.cil.c [2024-11-19 21:42:09,286 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 21:42:09,522 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 21:42:09,522 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product19.cil.c [2024-11-19 21:42:09,542 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/027eba67f/d67bdaa72fd64514a49d14210cf697cb/FLAG2a3755130 [2024-11-19 21:42:09,844 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/027eba67f/d67bdaa72fd64514a49d14210cf697cb [2024-11-19 21:42:09,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 21:42:09,847 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 21:42:09,848 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 21:42:09,849 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 21:42:09,853 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 21:42:09,853 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:42:09" (1/1) ... [2024-11-19 21:42:09,854 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d3e1b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:42:09, skipping insertion in model container [2024-11-19 21:42:09,854 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 09:42:09" (1/1) ... [2024-11-19 21:42:09,915 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 21:42:10,212 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product19.cil.c[34453,34466] [2024-11-19 21:42:10,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 21:42:10,372 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 21:42:10,403 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [48] [2024-11-19 21:42:10,405 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1596] [2024-11-19 21:42:10,405 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1605] [2024-11-19 21:42:10,405 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2267] [2024-11-19 21:42:10,405 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [2281] [2024-11-19 21:42:10,405 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [2462] [2024-11-19 21:42:10,405 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2581] [2024-11-19 21:42:10,406 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2673] [2024-11-19 21:42:10,406 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [3026] [2024-11-19 21:42:10,406 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3392] [2024-11-19 21:42:10,466 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product19.cil.c[34453,34466] [2024-11-19 21:42:10,520 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 21:42:10,557 INFO L204 MainTranslator]: Completed translation [2024-11-19 21:42:10,558 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:42:10 WrapperNode [2024-11-19 21:42:10,558 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 21:42:10,559 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 21:42:10,559 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 21:42:10,559 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 21:42:10,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:42:10" (1/1) ... [2024-11-19 21:42:10,592 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:42:10" (1/1) ... [2024-11-19 21:42:10,639 INFO L138 Inliner]: procedures = 94, calls = 340, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 1118 [2024-11-19 21:42:10,639 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 21:42:10,640 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 21:42:10,640 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 21:42:10,640 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 21:42:10,649 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:42:10" (1/1) ... [2024-11-19 21:42:10,649 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:42:10" (1/1) ... [2024-11-19 21:42:10,654 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:42:10" (1/1) ... [2024-11-19 21:42:10,682 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-19 21:42:10,683 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:42:10" (1/1) ... [2024-11-19 21:42:10,683 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:42:10" (1/1) ... [2024-11-19 21:42:10,704 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:42:10" (1/1) ... [2024-11-19 21:42:10,713 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:42:10" (1/1) ... [2024-11-19 21:42:10,717 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:42:10" (1/1) ... [2024-11-19 21:42:10,720 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:42:10" (1/1) ... [2024-11-19 21:42:10,726 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 21:42:10,727 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 21:42:10,727 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 21:42:10,727 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 21:42:10,728 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:42:10" (1/1) ... [2024-11-19 21:42:10,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 21:42:10,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:42:10,770 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 21:42:10,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 21:42:10,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 21:42:10,813 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-19 21:42:10,813 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-19 21:42:10,813 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-19 21:42:10,813 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-19 21:42:10,813 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2024-11-19 21:42:10,813 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2024-11-19 21:42:10,813 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-19 21:42:10,814 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-19 21:42:10,815 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-11-19 21:42:10,815 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-11-19 21:42:10,815 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-19 21:42:10,815 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-19 21:42:10,815 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-19 21:42:10,815 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-19 21:42:10,816 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-19 21:42:10,816 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-19 21:42:10,816 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-19 21:42:10,816 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-19 21:42:10,816 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2024-11-19 21:42:10,816 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2024-11-19 21:42:10,817 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2024-11-19 21:42:10,817 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2024-11-19 21:42:10,817 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-19 21:42:10,817 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-19 21:42:10,817 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-19 21:42:10,817 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-19 21:42:10,817 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-19 21:42:10,817 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-19 21:42:10,817 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-19 21:42:10,817 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-19 21:42:10,817 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-19 21:42:10,817 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-19 21:42:10,817 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-19 21:42:10,818 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-19 21:42:10,818 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-19 21:42:10,818 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-19 21:42:10,818 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-19 21:42:10,818 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-19 21:42:10,818 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-19 21:42:10,818 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-19 21:42:10,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 21:42:10,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 21:42:10,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 21:42:10,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 21:42:10,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 21:42:10,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 21:42:10,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-19 21:42:10,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-19 21:42:10,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-19 21:42:10,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-19 21:42:10,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-19 21:42:10,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-19 21:42:10,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-19 21:42:10,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-19 21:42:10,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-19 21:42:10,821 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-19 21:42:10,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-19 21:42:10,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-19 21:42:10,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-19 21:42:10,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-19 21:42:10,822 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-19 21:42:10,822 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-19 21:42:10,823 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-19 21:42:10,823 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-19 21:42:10,823 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-19 21:42:10,823 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-19 21:42:10,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 21:42:10,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 21:42:10,824 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-19 21:42:10,824 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-19 21:42:10,985 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 21:42:10,987 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 21:42:12,185 INFO L? ?]: Removed 449 outVars from TransFormulas that were not future-live. [2024-11-19 21:42:12,185 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 21:42:12,221 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 21:42:12,221 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 21:42:12,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:42:12 BoogieIcfgContainer [2024-11-19 21:42:12,221 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 21:42:12,223 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 21:42:12,223 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 21:42:12,228 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 21:42:12,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 09:42:09" (1/3) ... [2024-11-19 21:42:12,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f4f5a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:42:12, skipping insertion in model container [2024-11-19 21:42:12,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 09:42:10" (2/3) ... [2024-11-19 21:42:12,230 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9f4f5a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 09:42:12, skipping insertion in model container [2024-11-19 21:42:12,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 09:42:12" (3/3) ... [2024-11-19 21:42:12,231 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product19.cil.c [2024-11-19 21:42:12,245 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 21:42:12,245 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 21:42:12,308 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 21:42:12,313 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@525467f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 21:42:12,314 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 21:42:12,319 INFO L276 IsEmpty]: Start isEmpty. Operand has 560 states, 438 states have (on average 1.6894977168949772) internal successors, (740), 459 states have internal predecessors, (740), 96 states have call successors, (96), 24 states have call predecessors, (96), 24 states have return successors, (96), 90 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-19 21:42:12,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-19 21:42:12,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:42:12,339 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 21:42:12,339 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:42:12,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:42:12,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1065418536, now seen corresponding path program 1 times [2024-11-19 21:42:12,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:42:12,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114131133] [2024-11-19 21:42:12,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:12,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:42:12,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:13,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:42:13,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:13,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:13,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:13,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-19 21:42:13,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:13,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-19 21:42:13,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:13,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:13,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:13,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:13,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:13,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:13,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:13,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:42:13,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:13,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:42:13,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:13,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:13,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:13,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:13,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:13,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-19 21:42:13,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:13,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 21:42:13,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:13,643 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 21:42:13,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:42:13,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114131133] [2024-11-19 21:42:13,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114131133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:42:13,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:42:13,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 21:42:13,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087676321] [2024-11-19 21:42:13,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:42:13,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:42:13,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:42:13,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:42:13,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:42:13,677 INFO L87 Difference]: Start difference. First operand has 560 states, 438 states have (on average 1.6894977168949772) internal successors, (740), 459 states have internal predecessors, (740), 96 states have call successors, (96), 24 states have call predecessors, (96), 24 states have return successors, (96), 90 states have call predecessors, (96), 96 states have call successors, (96) Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 21:42:18,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:42:18,206 INFO L93 Difference]: Finished difference Result 1361 states and 2301 transitions. [2024-11-19 21:42:18,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 21:42:18,209 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 102 [2024-11-19 21:42:18,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:42:18,233 INFO L225 Difference]: With dead ends: 1361 [2024-11-19 21:42:18,233 INFO L226 Difference]: Without dead ends: 813 [2024-11-19 21:42:18,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:42:18,247 INFO L432 NwaCegarLoop]: 484 mSDtfsCounter, 1401 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 2895 mSolverCounterSat, 356 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 1837 SdHoareTripleChecker+Invalid, 3251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 356 IncrementalHoareTripleChecker+Valid, 2895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-19 21:42:18,248 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1482 Valid, 1837 Invalid, 3251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [356 Valid, 2895 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-19 21:42:18,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2024-11-19 21:42:18,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 552. [2024-11-19 21:42:18,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 432 states have (on average 1.6851851851851851) internal successors, (728), 451 states have internal predecessors, (728), 96 states have call successors, (96), 24 states have call predecessors, (96), 23 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-19 21:42:18,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 915 transitions. [2024-11-19 21:42:18,445 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 915 transitions. Word has length 102 [2024-11-19 21:42:18,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:42:18,446 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 915 transitions. [2024-11-19 21:42:18,446 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 21:42:18,446 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 915 transitions. [2024-11-19 21:42:18,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-19 21:42:18,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:42:18,453 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 21:42:18,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 21:42:18,454 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:42:18,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:42:18,455 INFO L85 PathProgramCache]: Analyzing trace with hash -1233827054, now seen corresponding path program 1 times [2024-11-19 21:42:18,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:42:18,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79367121] [2024-11-19 21:42:18,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:18,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:42:18,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:18,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:42:18,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:18,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:18,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:18,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:42:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:18,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-19 21:42:18,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:18,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:18,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:18,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:18,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:18,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:18,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:18,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:42:18,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:18,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:42:18,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:19,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:19,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:19,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:19,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:19,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-19 21:42:19,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:19,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 21:42:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:19,024 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 21:42:19,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:42:19,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79367121] [2024-11-19 21:42:19,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79367121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:42:19,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:42:19,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 21:42:19,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681147759] [2024-11-19 21:42:19,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:42:19,031 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:42:19,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:42:19,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:42:19,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:42:19,032 INFO L87 Difference]: Start difference. First operand 552 states and 915 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 21:42:22,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:42:22,949 INFO L93 Difference]: Finished difference Result 1347 states and 2263 transitions. [2024-11-19 21:42:22,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 21:42:22,950 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2024-11-19 21:42:22,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:42:22,955 INFO L225 Difference]: With dead ends: 1347 [2024-11-19 21:42:22,955 INFO L226 Difference]: Without dead ends: 813 [2024-11-19 21:42:22,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:42:22,958 INFO L432 NwaCegarLoop]: 478 mSDtfsCounter, 1411 mSDsluCounter, 1315 mSDsCounter, 0 mSdLazyCounter, 2767 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 3128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 2767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:42:22,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1793 Invalid, 3128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [361 Valid, 2767 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-19 21:42:22,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2024-11-19 21:42:23,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 552. [2024-11-19 21:42:23,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 432 states have (on average 1.6828703703703705) internal successors, (727), 451 states have internal predecessors, (727), 96 states have call successors, (96), 24 states have call predecessors, (96), 23 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-19 21:42:23,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 914 transitions. [2024-11-19 21:42:23,046 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 914 transitions. Word has length 105 [2024-11-19 21:42:23,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:42:23,046 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 914 transitions. [2024-11-19 21:42:23,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 21:42:23,047 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 914 transitions. [2024-11-19 21:42:23,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-19 21:42:23,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:42:23,071 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 21:42:23,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 21:42:23,072 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:42:23,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:42:23,073 INFO L85 PathProgramCache]: Analyzing trace with hash 618878632, now seen corresponding path program 1 times [2024-11-19 21:42:23,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:42:23,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482194944] [2024-11-19 21:42:23,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:23,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:42:23,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:23,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:42:23,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:23,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:23,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-19 21:42:23,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:23,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-19 21:42:23,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:23,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:23,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:23,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:23,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:23,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:23,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:23,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:42:23,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:23,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:42:23,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:23,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:23,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:23,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:23,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:23,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-19 21:42:23,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:23,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 21:42:23,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:23,547 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 21:42:23,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:42:23,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482194944] [2024-11-19 21:42:23,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482194944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:42:23,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:42:23,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 21:42:23,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452879992] [2024-11-19 21:42:23,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:42:23,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:42:23,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:42:23,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:42:23,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:42:23,553 INFO L87 Difference]: Start difference. First operand 552 states and 914 transitions. Second operand has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 21:42:27,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:42:27,631 INFO L93 Difference]: Finished difference Result 1347 states and 2262 transitions. [2024-11-19 21:42:27,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 21:42:27,632 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 106 [2024-11-19 21:42:27,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:42:27,638 INFO L225 Difference]: With dead ends: 1347 [2024-11-19 21:42:27,638 INFO L226 Difference]: Without dead ends: 813 [2024-11-19 21:42:27,641 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:42:27,642 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 964 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 2951 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1045 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 3157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 2951 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-19 21:42:27,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1045 Valid, 1869 Invalid, 3157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 2951 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-19 21:42:27,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2024-11-19 21:42:27,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 552. [2024-11-19 21:42:27,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 432 states have (on average 1.6805555555555556) internal successors, (726), 451 states have internal predecessors, (726), 96 states have call successors, (96), 24 states have call predecessors, (96), 23 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-19 21:42:27,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 913 transitions. [2024-11-19 21:42:27,749 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 913 transitions. Word has length 106 [2024-11-19 21:42:27,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:42:27,749 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 913 transitions. [2024-11-19 21:42:27,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.142857142857142) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 21:42:27,750 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 913 transitions. [2024-11-19 21:42:27,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-19 21:42:27,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:42:27,752 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 21:42:27,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 21:42:27,752 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:42:27,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:42:27,753 INFO L85 PathProgramCache]: Analyzing trace with hash -2133787826, now seen corresponding path program 1 times [2024-11-19 21:42:27,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:42:27,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113216245] [2024-11-19 21:42:27,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:27,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:42:27,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:27,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:42:27,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:27,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:27,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:27,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-19 21:42:27,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:28,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-19 21:42:28,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:28,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:28,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:28,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:28,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:28,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:42:28,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:28,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:42:28,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:28,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:28,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:28,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:28,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-19 21:42:28,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:28,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 21:42:28,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:28,246 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 21:42:28,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:42:28,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113216245] [2024-11-19 21:42:28,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113216245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:42:28,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:42:28,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 21:42:28,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799008134] [2024-11-19 21:42:28,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:42:28,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:42:28,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:42:28,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:42:28,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:42:28,249 INFO L87 Difference]: Start difference. First operand 552 states and 913 transitions. Second operand has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 21:42:32,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:42:32,295 INFO L93 Difference]: Finished difference Result 1347 states and 2261 transitions. [2024-11-19 21:42:32,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 21:42:32,296 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 107 [2024-11-19 21:42:32,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:42:32,300 INFO L225 Difference]: With dead ends: 1347 [2024-11-19 21:42:32,300 INFO L226 Difference]: Without dead ends: 813 [2024-11-19 21:42:32,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:42:32,303 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 960 mSDsluCounter, 1390 mSDsCounter, 0 mSdLazyCounter, 2955 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 1869 SdHoareTripleChecker+Invalid, 3161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 2955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-19 21:42:32,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1041 Valid, 1869 Invalid, 3161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 2955 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-19 21:42:32,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2024-11-19 21:42:32,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 552. [2024-11-19 21:42:32,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 432 states have (on average 1.6782407407407407) internal successors, (725), 451 states have internal predecessors, (725), 96 states have call successors, (96), 24 states have call predecessors, (96), 23 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-19 21:42:32,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 912 transitions. [2024-11-19 21:42:32,378 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 912 transitions. Word has length 107 [2024-11-19 21:42:32,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:42:32,378 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 912 transitions. [2024-11-19 21:42:32,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.285714285714286) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 21:42:32,379 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 912 transitions. [2024-11-19 21:42:32,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-19 21:42:32,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:42:32,381 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 21:42:32,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 21:42:32,381 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:42:32,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:42:32,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1624102684, now seen corresponding path program 1 times [2024-11-19 21:42:32,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:42:32,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002234105] [2024-11-19 21:42:32,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:32,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:42:32,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:32,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:42:32,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:32,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:32,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:32,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-19 21:42:32,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:32,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-19 21:42:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:32,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:32,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:32,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:32,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:32,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:32,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:42:32,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:32,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:42:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:32,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:32,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:33,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:33,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-19 21:42:33,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:33,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 21:42:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:33,015 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 21:42:33,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:42:33,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002234105] [2024-11-19 21:42:33,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002234105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:42:33,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:42:33,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 21:42:33,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165756532] [2024-11-19 21:42:33,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:42:33,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:42:33,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:42:33,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:42:33,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:42:33,018 INFO L87 Difference]: Start difference. First operand 552 states and 912 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 21:42:37,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:42:37,064 INFO L93 Difference]: Finished difference Result 1347 states and 2260 transitions. [2024-11-19 21:42:37,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 21:42:37,065 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2024-11-19 21:42:37,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:42:37,069 INFO L225 Difference]: With dead ends: 1347 [2024-11-19 21:42:37,069 INFO L226 Difference]: Without dead ends: 813 [2024-11-19 21:42:37,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:42:37,071 INFO L432 NwaCegarLoop]: 484 mSDtfsCounter, 960 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 2942 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 1880 SdHoareTripleChecker+Invalid, 3148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 2942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-19 21:42:37,072 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1041 Valid, 1880 Invalid, 3148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 2942 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-19 21:42:37,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2024-11-19 21:42:37,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 552. [2024-11-19 21:42:37,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 432 states have (on average 1.6759259259259258) internal successors, (724), 451 states have internal predecessors, (724), 96 states have call successors, (96), 24 states have call predecessors, (96), 23 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-19 21:42:37,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 911 transitions. [2024-11-19 21:42:37,224 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 911 transitions. Word has length 108 [2024-11-19 21:42:37,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:42:37,225 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 911 transitions. [2024-11-19 21:42:37,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 21:42:37,227 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 911 transitions. [2024-11-19 21:42:37,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-19 21:42:37,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:42:37,232 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 21:42:37,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 21:42:37,233 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:42:37,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:42:37,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1234234250, now seen corresponding path program 1 times [2024-11-19 21:42:37,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:42:37,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631309802] [2024-11-19 21:42:37,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:37,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:42:37,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:42:37,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:37,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:42:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 21:42:37,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:37,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:42:37,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:42:37,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:37,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-19 21:42:37,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 21:42:37,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:37,779 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 21:42:37,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:42:37,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631309802] [2024-11-19 21:42:37,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631309802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:42:37,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:42:37,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 21:42:37,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425152239] [2024-11-19 21:42:37,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:42:37,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 21:42:37,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:42:37,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 21:42:37,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:42:37,781 INFO L87 Difference]: Start difference. First operand 552 states and 911 transitions. Second operand has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-19 21:42:43,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:42:43,188 INFO L93 Difference]: Finished difference Result 1324 states and 2210 transitions. [2024-11-19 21:42:43,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-19 21:42:43,189 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 109 [2024-11-19 21:42:43,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:42:43,193 INFO L225 Difference]: With dead ends: 1324 [2024-11-19 21:42:43,193 INFO L226 Difference]: Without dead ends: 839 [2024-11-19 21:42:43,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=94, Invalid=326, Unknown=0, NotChecked=0, Total=420 [2024-11-19 21:42:43,197 INFO L432 NwaCegarLoop]: 476 mSDtfsCounter, 1507 mSDsluCounter, 2714 mSDsCounter, 0 mSdLazyCounter, 5128 mSolverCounterSat, 369 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1589 SdHoareTripleChecker+Valid, 3190 SdHoareTripleChecker+Invalid, 5497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 369 IncrementalHoareTripleChecker+Valid, 5128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-19 21:42:43,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1589 Valid, 3190 Invalid, 5497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [369 Valid, 5128 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-19 21:42:43,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2024-11-19 21:42:43,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 565. [2024-11-19 21:42:43,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 442 states have (on average 1.6719457013574661) internal successors, (739), 463 states have internal predecessors, (739), 97 states have call successors, (97), 24 states have call predecessors, (97), 25 states have return successors, (94), 90 states have call predecessors, (94), 92 states have call successors, (94) [2024-11-19 21:42:43,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 930 transitions. [2024-11-19 21:42:43,279 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 930 transitions. Word has length 109 [2024-11-19 21:42:43,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:42:43,279 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 930 transitions. [2024-11-19 21:42:43,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.222222222222221) internal successors, (74), 6 states have internal predecessors, (74), 3 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-19 21:42:43,280 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 930 transitions. [2024-11-19 21:42:43,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-19 21:42:43,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:42:43,285 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 21:42:43,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 21:42:43,286 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:42:43,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:42:43,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1219984105, now seen corresponding path program 1 times [2024-11-19 21:42:43,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:42:43,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707274853] [2024-11-19 21:42:43,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:43,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:42:43,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:43,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:42:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:43,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:43,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:43,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:42:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:43,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-19 21:42:43,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:43,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:43,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:43,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:43,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:43,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:43,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:43,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:42:43,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:43,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:42:43,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:43,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:43,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:43,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:43,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:43,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-19 21:42:43,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:43,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 21:42:43,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:43,781 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 21:42:43,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:42:43,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707274853] [2024-11-19 21:42:43,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707274853] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:42:43,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:42:43,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 21:42:43,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089868297] [2024-11-19 21:42:43,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:42:43,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:42:43,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:42:43,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:42:43,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:42:43,783 INFO L87 Difference]: Start difference. First operand 565 states and 930 transitions. Second operand has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 21:42:47,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:42:47,116 INFO L93 Difference]: Finished difference Result 1350 states and 2252 transitions. [2024-11-19 21:42:47,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 21:42:47,116 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2024-11-19 21:42:47,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:42:47,120 INFO L225 Difference]: With dead ends: 1350 [2024-11-19 21:42:47,120 INFO L226 Difference]: Without dead ends: 847 [2024-11-19 21:42:47,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-19 21:42:47,123 INFO L432 NwaCegarLoop]: 479 mSDtfsCounter, 1909 mSDsluCounter, 1263 mSDsCounter, 0 mSdLazyCounter, 2677 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1990 SdHoareTripleChecker+Valid, 1742 SdHoareTripleChecker+Invalid, 3189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 2677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-19 21:42:47,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1990 Valid, 1742 Invalid, 3189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 2677 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-19 21:42:47,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2024-11-19 21:42:47,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 565. [2024-11-19 21:42:47,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 442 states have (on average 1.660633484162896) internal successors, (734), 463 states have internal predecessors, (734), 97 states have call successors, (97), 24 states have call predecessors, (97), 25 states have return successors, (94), 90 states have call predecessors, (94), 92 states have call successors, (94) [2024-11-19 21:42:47,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 925 transitions. [2024-11-19 21:42:47,229 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 925 transitions. Word has length 109 [2024-11-19 21:42:47,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:42:47,229 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 925 transitions. [2024-11-19 21:42:47,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.571428571428571) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 21:42:47,229 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 925 transitions. [2024-11-19 21:42:47,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-19 21:42:47,231 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:42:47,232 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 21:42:47,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 21:42:47,232 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:42:47,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:42:47,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1734696347, now seen corresponding path program 1 times [2024-11-19 21:42:47,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:42:47,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408762598] [2024-11-19 21:42:47,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:47,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:42:47,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:47,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:42:47,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:47,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:47,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:47,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:42:47,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:47,595 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-19 21:42:47,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:47,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:47,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:47,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:47,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:47,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:47,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:47,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:42:47,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:47,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:42:47,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:47,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:47,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:47,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:47,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:47,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-19 21:42:47,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:47,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 21:42:47,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:47,639 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 21:42:47,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:42:47,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408762598] [2024-11-19 21:42:47,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408762598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:42:47,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:42:47,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 21:42:47,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476873713] [2024-11-19 21:42:47,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:42:47,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:42:47,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:42:47,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:42:47,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:42:47,641 INFO L87 Difference]: Start difference. First operand 565 states and 925 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 21:42:51,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:42:51,046 INFO L93 Difference]: Finished difference Result 1350 states and 2247 transitions. [2024-11-19 21:42:51,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 21:42:51,047 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 110 [2024-11-19 21:42:51,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:42:51,051 INFO L225 Difference]: With dead ends: 1350 [2024-11-19 21:42:51,054 INFO L226 Difference]: Without dead ends: 847 [2024-11-19 21:42:51,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-19 21:42:51,056 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 1475 mSDsluCounter, 1319 mSDsCounter, 0 mSdLazyCounter, 2710 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 1799 SdHoareTripleChecker+Invalid, 3074 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 2710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-19 21:42:51,056 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1556 Valid, 1799 Invalid, 3074 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [364 Valid, 2710 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-19 21:42:51,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2024-11-19 21:42:51,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 565. [2024-11-19 21:42:51,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 442 states have (on average 1.6493212669683257) internal successors, (729), 463 states have internal predecessors, (729), 97 states have call successors, (97), 24 states have call predecessors, (97), 25 states have return successors, (94), 90 states have call predecessors, (94), 92 states have call successors, (94) [2024-11-19 21:42:51,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 920 transitions. [2024-11-19 21:42:51,169 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 920 transitions. Word has length 110 [2024-11-19 21:42:51,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:42:51,169 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 920 transitions. [2024-11-19 21:42:51,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 21:42:51,170 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 920 transitions. [2024-11-19 21:42:51,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-19 21:42:51,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:42:51,172 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 21:42:51,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 21:42:51,172 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:42:51,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:42:51,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1240337234, now seen corresponding path program 1 times [2024-11-19 21:42:51,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:42:51,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53980978] [2024-11-19 21:42:51,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:51,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:42:51,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:51,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:42:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:51,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:51,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:51,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:42:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:51,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-19 21:42:51,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:51,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:51,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:51,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:51,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:51,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:51,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:51,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:42:51,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:51,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:42:51,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:51,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:51,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:51,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:51,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:51,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-19 21:42:51,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:51,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 21:42:51,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:51,918 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 21:42:51,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:42:51,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53980978] [2024-11-19 21:42:51,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53980978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:42:51,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:42:51,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 21:42:51,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35768990] [2024-11-19 21:42:51,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:42:51,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:42:51,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:42:51,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:42:51,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:42:51,919 INFO L87 Difference]: Start difference. First operand 565 states and 920 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 21:42:55,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:42:55,599 INFO L93 Difference]: Finished difference Result 1350 states and 2242 transitions. [2024-11-19 21:42:55,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 21:42:55,600 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2024-11-19 21:42:55,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:42:55,608 INFO L225 Difference]: With dead ends: 1350 [2024-11-19 21:42:55,612 INFO L226 Difference]: Without dead ends: 847 [2024-11-19 21:42:55,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-19 21:42:55,615 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 1473 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 2681 mSolverCounterSat, 371 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1554 SdHoareTripleChecker+Valid, 1779 SdHoareTripleChecker+Invalid, 3052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 371 IncrementalHoareTripleChecker+Valid, 2681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:42:55,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1554 Valid, 1779 Invalid, 3052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [371 Valid, 2681 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-19 21:42:55,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2024-11-19 21:42:55,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 565. [2024-11-19 21:42:55,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 442 states have (on average 1.6380090497737556) internal successors, (724), 463 states have internal predecessors, (724), 97 states have call successors, (97), 24 states have call predecessors, (97), 25 states have return successors, (94), 90 states have call predecessors, (94), 92 states have call successors, (94) [2024-11-19 21:42:55,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 915 transitions. [2024-11-19 21:42:55,785 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 915 transitions. Word has length 111 [2024-11-19 21:42:55,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:42:55,789 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 915 transitions. [2024-11-19 21:42:55,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 21:42:55,789 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 915 transitions. [2024-11-19 21:42:55,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-19 21:42:55,791 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:42:55,792 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 21:42:55,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 21:42:55,792 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:42:55,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:42:55,792 INFO L85 PathProgramCache]: Analyzing trace with hash -764644192, now seen corresponding path program 1 times [2024-11-19 21:42:55,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:42:55,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103113536] [2024-11-19 21:42:55,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:42:55,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:42:55,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:56,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:42:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:56,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:56,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:56,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:42:56,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:56,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-19 21:42:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:56,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:56,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:56,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:56,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:56,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:56,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:42:56,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:56,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:42:56,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:56,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:56,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:56,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:42:56,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:56,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-19 21:42:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:56,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 21:42:56,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:42:56,343 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 21:42:56,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:42:56,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103113536] [2024-11-19 21:42:56,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103113536] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:42:56,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:42:56,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 21:42:56,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804409673] [2024-11-19 21:42:56,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:42:56,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 21:42:56,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:42:56,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 21:42:56,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:42:56,345 INFO L87 Difference]: Start difference. First operand 565 states and 915 transitions. Second operand has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-19 21:43:01,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:43:01,068 INFO L93 Difference]: Finished difference Result 1327 states and 2197 transitions. [2024-11-19 21:43:01,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 21:43:01,068 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 112 [2024-11-19 21:43:01,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:43:01,076 INFO L225 Difference]: With dead ends: 1327 [2024-11-19 21:43:01,076 INFO L226 Difference]: Without dead ends: 839 [2024-11-19 21:43:01,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-19 21:43:01,078 INFO L432 NwaCegarLoop]: 489 mSDtfsCounter, 1853 mSDsluCounter, 2700 mSDsCounter, 0 mSdLazyCounter, 4964 mSolverCounterSat, 500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1935 SdHoareTripleChecker+Valid, 3189 SdHoareTripleChecker+Invalid, 5464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 500 IncrementalHoareTripleChecker+Valid, 4964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-19 21:43:01,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1935 Valid, 3189 Invalid, 5464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [500 Valid, 4964 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-19 21:43:01,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 839 states. [2024-11-19 21:43:01,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 839 to 565. [2024-11-19 21:43:01,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 442 states have (on average 1.6357466063348416) internal successors, (723), 463 states have internal predecessors, (723), 97 states have call successors, (97), 24 states have call predecessors, (97), 25 states have return successors, (94), 90 states have call predecessors, (94), 92 states have call successors, (94) [2024-11-19 21:43:01,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 914 transitions. [2024-11-19 21:43:01,167 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 914 transitions. Word has length 112 [2024-11-19 21:43:01,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:43:01,168 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 914 transitions. [2024-11-19 21:43:01,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.555555555555555) internal successors, (77), 6 states have internal predecessors, (77), 3 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-19 21:43:01,168 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 914 transitions. [2024-11-19 21:43:01,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-19 21:43:01,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:43:01,170 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 21:43:01,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 21:43:01,171 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:43:01,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:43:01,171 INFO L85 PathProgramCache]: Analyzing trace with hash -728341632, now seen corresponding path program 1 times [2024-11-19 21:43:01,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:43:01,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854863760] [2024-11-19 21:43:01,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:43:01,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:43:01,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:01,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:43:01,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:01,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:01,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:01,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:43:01,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:01,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-19 21:43:01,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:01,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:01,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:01,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:01,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:01,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:01,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:01,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:43:01,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:01,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:43:01,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:01,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:01,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:01,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:01,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-19 21:43:01,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:01,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 21:43:01,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:01,725 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 21:43:01,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:43:01,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854863760] [2024-11-19 21:43:01,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854863760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:43:01,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:43:01,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 21:43:01,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335644353] [2024-11-19 21:43:01,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:43:01,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:43:01,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:43:01,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:43:01,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:43:01,727 INFO L87 Difference]: Start difference. First operand 565 states and 914 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 21:43:05,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:43:05,122 INFO L93 Difference]: Finished difference Result 1350 states and 2233 transitions. [2024-11-19 21:43:05,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 21:43:05,123 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 112 [2024-11-19 21:43:05,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:43:05,128 INFO L225 Difference]: With dead ends: 1350 [2024-11-19 21:43:05,128 INFO L226 Difference]: Without dead ends: 847 [2024-11-19 21:43:05,129 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-19 21:43:05,130 INFO L432 NwaCegarLoop]: 485 mSDtfsCounter, 1892 mSDsluCounter, 1271 mSDsCounter, 0 mSdLazyCounter, 2621 mSolverCounterSat, 503 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1973 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 3124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 2621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-19 21:43:05,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1973 Valid, 1756 Invalid, 3124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [503 Valid, 2621 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-19 21:43:05,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2024-11-19 21:43:05,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 565. [2024-11-19 21:43:05,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 442 states have (on average 1.6244343891402715) internal successors, (718), 463 states have internal predecessors, (718), 97 states have call successors, (97), 24 states have call predecessors, (97), 25 states have return successors, (94), 90 states have call predecessors, (94), 92 states have call successors, (94) [2024-11-19 21:43:05,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 909 transitions. [2024-11-19 21:43:05,223 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 909 transitions. Word has length 112 [2024-11-19 21:43:05,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:43:05,224 INFO L471 AbstractCegarLoop]: Abstraction has 565 states and 909 transitions. [2024-11-19 21:43:05,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 21:43:05,224 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 909 transitions. [2024-11-19 21:43:05,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-19 21:43:05,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:43:05,226 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 21:43:05,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 21:43:05,227 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:43:05,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:43:05,227 INFO L85 PathProgramCache]: Analyzing trace with hash 291656529, now seen corresponding path program 1 times [2024-11-19 21:43:05,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:43:05,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859463181] [2024-11-19 21:43:05,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:43:05,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:43:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:05,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:43:05,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:05,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:05,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:05,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:43:05,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:05,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 21:43:05,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:05,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:05,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:05,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:05,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:05,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:05,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:43:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:05,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:43:05,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:05,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:05,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:05,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:05,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-19 21:43:05,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:05,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 21:43:05,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:05,709 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 21:43:05,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:43:05,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859463181] [2024-11-19 21:43:05,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859463181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:43:05,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:43:05,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 21:43:05,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759185151] [2024-11-19 21:43:05,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:43:05,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 21:43:05,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:43:05,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 21:43:05,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:43:05,710 INFO L87 Difference]: Start difference. First operand 565 states and 909 transitions. Second operand has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-19 21:43:11,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:43:11,380 INFO L93 Difference]: Finished difference Result 1336 states and 2201 transitions. [2024-11-19 21:43:11,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 21:43:11,381 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 113 [2024-11-19 21:43:11,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:43:11,385 INFO L225 Difference]: With dead ends: 1336 [2024-11-19 21:43:11,385 INFO L226 Difference]: Without dead ends: 845 [2024-11-19 21:43:11,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-19 21:43:11,387 INFO L432 NwaCegarLoop]: 476 mSDtfsCounter, 988 mSDsluCounter, 2782 mSDsCounter, 0 mSdLazyCounter, 5080 mSolverCounterSat, 211 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 3258 SdHoareTripleChecker+Invalid, 5291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 211 IncrementalHoareTripleChecker+Valid, 5080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-19 21:43:11,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1070 Valid, 3258 Invalid, 5291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [211 Valid, 5080 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-11-19 21:43:11,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states. [2024-11-19 21:43:11,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 568. [2024-11-19 21:43:11,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 445 states have (on average 1.6179775280898876) internal successors, (720), 466 states have internal predecessors, (720), 97 states have call successors, (97), 24 states have call predecessors, (97), 25 states have return successors, (94), 90 states have call predecessors, (94), 92 states have call successors, (94) [2024-11-19 21:43:11,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 911 transitions. [2024-11-19 21:43:11,532 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 911 transitions. Word has length 113 [2024-11-19 21:43:11,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:43:11,532 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 911 transitions. [2024-11-19 21:43:11,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.666666666666666) internal successors, (78), 6 states have internal predecessors, (78), 3 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-19 21:43:11,533 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 911 transitions. [2024-11-19 21:43:11,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-19 21:43:11,535 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:43:11,535 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-19 21:43:11,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 21:43:11,535 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:43:11,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:43:11,535 INFO L85 PathProgramCache]: Analyzing trace with hash 507376243, now seen corresponding path program 1 times [2024-11-19 21:43:11,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:43:11,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677882339] [2024-11-19 21:43:11,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:43:11,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:43:11,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:11,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:43:11,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:11,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:11,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:11,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:43:11,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:11,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-19 21:43:11,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:11,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:11,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:11,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:11,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:11,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:11,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:11,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:43:11,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:11,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:43:11,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:11,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:11,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:11,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:11,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:11,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-19 21:43:11,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:11,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 21:43:11,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:11,953 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 21:43:11,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:43:11,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677882339] [2024-11-19 21:43:11,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677882339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:43:11,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:43:11,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 21:43:11,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085273500] [2024-11-19 21:43:11,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:43:11,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:43:11,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:43:11,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:43:11,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:43:11,955 INFO L87 Difference]: Start difference. First operand 568 states and 911 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 21:43:15,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:43:15,595 INFO L93 Difference]: Finished difference Result 1359 states and 2233 transitions. [2024-11-19 21:43:15,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 21:43:15,595 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-11-19 21:43:15,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:43:15,599 INFO L225 Difference]: With dead ends: 1359 [2024-11-19 21:43:15,599 INFO L226 Difference]: Without dead ends: 853 [2024-11-19 21:43:15,604 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-19 21:43:15,605 INFO L432 NwaCegarLoop]: 484 mSDtfsCounter, 1442 mSDsluCounter, 1335 mSDsCounter, 0 mSdLazyCounter, 2748 mSolverCounterSat, 355 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1523 SdHoareTripleChecker+Valid, 1819 SdHoareTripleChecker+Invalid, 3103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 355 IncrementalHoareTripleChecker+Valid, 2748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-19 21:43:15,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1523 Valid, 1819 Invalid, 3103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [355 Valid, 2748 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-19 21:43:15,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2024-11-19 21:43:15,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 568. [2024-11-19 21:43:15,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 445 states have (on average 1.6067415730337078) internal successors, (715), 466 states have internal predecessors, (715), 97 states have call successors, (97), 24 states have call predecessors, (97), 25 states have return successors, (94), 90 states have call predecessors, (94), 92 states have call successors, (94) [2024-11-19 21:43:15,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 906 transitions. [2024-11-19 21:43:15,717 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 906 transitions. Word has length 113 [2024-11-19 21:43:15,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:43:15,717 INFO L471 AbstractCegarLoop]: Abstraction has 568 states and 906 transitions. [2024-11-19 21:43:15,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 21:43:15,717 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 906 transitions. [2024-11-19 21:43:15,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-19 21:43:15,719 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:43:15,719 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2024-11-19 21:43:15,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 21:43:15,720 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:43:15,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:43:15,720 INFO L85 PathProgramCache]: Analyzing trace with hash -158102651, now seen corresponding path program 1 times [2024-11-19 21:43:15,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:43:15,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512020314] [2024-11-19 21:43:15,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:43:15,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:43:15,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:15,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:43:15,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:15,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:15,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:43:15,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:16,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 21:43:16,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:16,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:16,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:16,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:16,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:16,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:16,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:16,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:43:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:16,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:43:16,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:16,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:16,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:16,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:16,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:16,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-19 21:43:16,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:16,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 21:43:16,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:16,181 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 21:43:16,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:43:16,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512020314] [2024-11-19 21:43:16,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512020314] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:43:16,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:43:16,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 21:43:16,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479821289] [2024-11-19 21:43:16,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:43:16,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:43:16,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:43:16,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:43:16,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:43:16,183 INFO L87 Difference]: Start difference. First operand 568 states and 906 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 21:43:19,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:43:19,797 INFO L93 Difference]: Finished difference Result 1340 states and 2198 transitions. [2024-11-19 21:43:19,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 21:43:19,798 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2024-11-19 21:43:19,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:43:19,801 INFO L225 Difference]: With dead ends: 1340 [2024-11-19 21:43:19,801 INFO L226 Difference]: Without dead ends: 849 [2024-11-19 21:43:19,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2024-11-19 21:43:19,803 INFO L432 NwaCegarLoop]: 481 mSDtfsCounter, 1407 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 2702 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1814 SdHoareTripleChecker+Invalid, 3056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 2702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-19 21:43:19,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1814 Invalid, 3056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 2702 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-19 21:43:19,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states. [2024-11-19 21:43:19,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 572. [2024-11-19 21:43:19,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 449 states have (on average 1.599109131403118) internal successors, (718), 470 states have internal predecessors, (718), 97 states have call successors, (97), 24 states have call predecessors, (97), 25 states have return successors, (94), 90 states have call predecessors, (94), 92 states have call successors, (94) [2024-11-19 21:43:19,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 909 transitions. [2024-11-19 21:43:19,898 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 909 transitions. Word has length 114 [2024-11-19 21:43:19,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:43:19,899 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 909 transitions. [2024-11-19 21:43:19,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 21:43:19,899 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 909 transitions. [2024-11-19 21:43:19,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-19 21:43:19,901 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:43:19,901 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2024-11-19 21:43:19,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 21:43:19,901 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:43:19,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:43:19,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1591319195, now seen corresponding path program 1 times [2024-11-19 21:43:19,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:43:19,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515889694] [2024-11-19 21:43:19,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:43:19,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:43:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:20,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:43:20,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:20,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:20,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:20,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:43:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:20,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-19 21:43:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:20,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:20,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:20,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:20,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:20,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:20,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:43:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:20,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:43:20,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:20,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:20,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:20,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:20,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:20,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-19 21:43:20,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:20,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 21:43:20,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:20,339 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 21:43:20,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:43:20,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515889694] [2024-11-19 21:43:20,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515889694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:43:20,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:43:20,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 21:43:20,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3903984] [2024-11-19 21:43:20,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:43:20,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 21:43:20,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:43:20,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 21:43:20,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 21:43:20,341 INFO L87 Difference]: Start difference. First operand 572 states and 909 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 21:43:23,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:43:23,505 INFO L93 Difference]: Finished difference Result 1395 states and 2261 transitions. [2024-11-19 21:43:23,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 21:43:23,506 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2024-11-19 21:43:23,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:43:23,510 INFO L225 Difference]: With dead ends: 1395 [2024-11-19 21:43:23,510 INFO L226 Difference]: Without dead ends: 821 [2024-11-19 21:43:23,511 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:43:23,512 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 1805 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 2581 mSolverCounterSat, 506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1886 SdHoareTripleChecker+Valid, 1745 SdHoareTripleChecker+Invalid, 3087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 506 IncrementalHoareTripleChecker+Valid, 2581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-19 21:43:23,512 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1886 Valid, 1745 Invalid, 3087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [506 Valid, 2581 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-19 21:43:23,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2024-11-19 21:43:23,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 553. [2024-11-19 21:43:23,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 433 states have (on average 1.6073903002309469) internal successors, (696), 452 states have internal predecessors, (696), 96 states have call successors, (96), 24 states have call predecessors, (96), 23 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-19 21:43:23,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 883 transitions. [2024-11-19 21:43:23,608 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 883 transitions. Word has length 114 [2024-11-19 21:43:23,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:43:23,608 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 883 transitions. [2024-11-19 21:43:23,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-19 21:43:23,608 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 883 transitions. [2024-11-19 21:43:23,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-19 21:43:23,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:43:23,610 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1] [2024-11-19 21:43:23,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 21:43:23,611 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:43:23,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:43:23,611 INFO L85 PathProgramCache]: Analyzing trace with hash -51078506, now seen corresponding path program 1 times [2024-11-19 21:43:23,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:43:23,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898354598] [2024-11-19 21:43:23,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:43:23,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:43:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:23,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:43:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:23,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:23,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:23,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:43:23,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:24,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-19 21:43:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:24,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:24,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:24,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:24,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:24,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:24,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:24,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:43:24,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:24,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:43:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:24,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:24,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:24,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:24,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-19 21:43:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:24,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 21:43:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:24,091 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 21:43:24,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:43:24,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898354598] [2024-11-19 21:43:24,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898354598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:43:24,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:43:24,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 21:43:24,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694403737] [2024-11-19 21:43:24,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:43:24,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 21:43:24,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:43:24,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 21:43:24,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-19 21:43:24,093 INFO L87 Difference]: Start difference. First operand 553 states and 883 transitions. Second operand has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-19 21:43:28,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:43:28,828 INFO L93 Difference]: Finished difference Result 1319 states and 2163 transitions. [2024-11-19 21:43:28,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 21:43:28,829 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 115 [2024-11-19 21:43:28,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:43:28,833 INFO L225 Difference]: With dead ends: 1319 [2024-11-19 21:43:28,833 INFO L226 Difference]: Without dead ends: 831 [2024-11-19 21:43:28,835 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-11-19 21:43:28,835 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 1395 mSDsluCounter, 2709 mSDsCounter, 0 mSdLazyCounter, 4785 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1476 SdHoareTripleChecker+Valid, 3183 SdHoareTripleChecker+Invalid, 5151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 4785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-19 21:43:28,835 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1476 Valid, 3183 Invalid, 5151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [366 Valid, 4785 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-19 21:43:28,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states. [2024-11-19 21:43:28,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 558. [2024-11-19 21:43:28,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 558 states, 438 states have (on average 1.6004566210045663) internal successors, (701), 457 states have internal predecessors, (701), 96 states have call successors, (96), 24 states have call predecessors, (96), 23 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2024-11-19 21:43:28,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 888 transitions. [2024-11-19 21:43:28,939 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 888 transitions. Word has length 115 [2024-11-19 21:43:28,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:43:28,939 INFO L471 AbstractCegarLoop]: Abstraction has 558 states and 888 transitions. [2024-11-19 21:43:28,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.88888888888889) internal successors, (80), 6 states have internal predecessors, (80), 3 states have call successors, (13), 5 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-19 21:43:28,939 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 888 transitions. [2024-11-19 21:43:28,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-19 21:43:28,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:43:28,941 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2024-11-19 21:43:28,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 21:43:28,941 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:43:28,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:43:28,942 INFO L85 PathProgramCache]: Analyzing trace with hash -103270278, now seen corresponding path program 1 times [2024-11-19 21:43:28,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:43:28,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992324259] [2024-11-19 21:43:28,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:43:28,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:43:28,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:29,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:43:29,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:29,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:29,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:29,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:43:29,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:29,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-19 21:43:29,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:29,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:29,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:29,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:29,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:29,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:29,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:29,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-19 21:43:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:29,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-19 21:43:29,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:29,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:29,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:29,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:29,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-19 21:43:29,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:29,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-19 21:43:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:29,504 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 21:43:29,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:43:29,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992324259] [2024-11-19 21:43:29,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992324259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:43:29,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:43:29,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-19 21:43:29,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248741900] [2024-11-19 21:43:29,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:43:29,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 21:43:29,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:43:29,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 21:43:29,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-19 21:43:29,506 INFO L87 Difference]: Start difference. First operand 558 states and 888 transitions. Second operand has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 4 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (12), 7 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-19 21:43:36,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:43:36,772 INFO L93 Difference]: Finished difference Result 1320 states and 2204 transitions. [2024-11-19 21:43:36,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 21:43:36,772 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 4 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (12), 7 states have call predecessors, (12), 4 states have call successors, (12) Word has length 116 [2024-11-19 21:43:36,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:43:36,776 INFO L225 Difference]: With dead ends: 1320 [2024-11-19 21:43:36,776 INFO L226 Difference]: Without dead ends: 840 [2024-11-19 21:43:36,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=156, Invalid=546, Unknown=0, NotChecked=0, Total=702 [2024-11-19 21:43:36,778 INFO L432 NwaCegarLoop]: 360 mSDtfsCounter, 3570 mSDsluCounter, 2326 mSDsCounter, 0 mSdLazyCounter, 7692 mSolverCounterSat, 1291 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3570 SdHoareTripleChecker+Valid, 2686 SdHoareTripleChecker+Invalid, 8983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1291 IncrementalHoareTripleChecker+Valid, 7692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-19 21:43:36,778 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3570 Valid, 2686 Invalid, 8983 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1291 Valid, 7692 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-19 21:43:36,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 840 states. [2024-11-19 21:43:36,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 840 to 567. [2024-11-19 21:43:36,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 445 states have (on average 1.5910112359550561) internal successors, (708), 463 states have internal predecessors, (708), 96 states have call successors, (96), 24 states have call predecessors, (96), 25 states have return successors, (110), 92 states have call predecessors, (110), 91 states have call successors, (110) [2024-11-19 21:43:36,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 914 transitions. [2024-11-19 21:43:36,886 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 914 transitions. Word has length 116 [2024-11-19 21:43:36,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:43:36,886 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 914 transitions. [2024-11-19 21:43:36,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.4) internal successors, (81), 9 states have internal predecessors, (81), 4 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (12), 7 states have call predecessors, (12), 4 states have call successors, (12) [2024-11-19 21:43:36,887 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 914 transitions. [2024-11-19 21:43:36,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-19 21:43:36,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:43:36,888 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2024-11-19 21:43:36,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 21:43:36,889 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:43:36,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:43:36,889 INFO L85 PathProgramCache]: Analyzing trace with hash -790027358, now seen corresponding path program 1 times [2024-11-19 21:43:36,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:43:36,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796502956] [2024-11-19 21:43:36,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:43:36,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:43:36,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:37,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:43:37,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:37,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:37,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:37,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:43:37,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:37,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-19 21:43:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:37,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:37,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:37,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:37,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:37,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-19 21:43:37,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:37,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-19 21:43:37,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:37,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:37,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:37,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:37,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:37,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-19 21:43:37,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:37,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-19 21:43:37,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:37,463 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-19 21:43:37,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:43:37,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796502956] [2024-11-19 21:43:37,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796502956] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:43:37,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454811752] [2024-11-19 21:43:37,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:43:37,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:43:37,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:43:37,466 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:43:37,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 21:43:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:37,747 INFO L255 TraceCheckSpWp]: Trace formula consists of 1445 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 21:43:37,758 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:43:37,861 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-19 21:43:37,861 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:43:37,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454811752] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:43:37,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:43:37,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [12] total 15 [2024-11-19 21:43:37,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992408955] [2024-11-19 21:43:37,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:43:37,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:43:37,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:43:37,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:43:37,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-19 21:43:37,863 INFO L87 Difference]: Start difference. First operand 567 states and 914 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 21:43:38,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:43:38,348 INFO L93 Difference]: Finished difference Result 1066 states and 1780 transitions. [2024-11-19 21:43:38,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 21:43:38,349 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 117 [2024-11-19 21:43:38,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:43:38,357 INFO L225 Difference]: With dead ends: 1066 [2024-11-19 21:43:38,357 INFO L226 Difference]: Without dead ends: 577 [2024-11-19 21:43:38,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-11-19 21:43:38,359 INFO L432 NwaCegarLoop]: 855 mSDtfsCounter, 823 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 2203 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 21:43:38,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 2203 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 21:43:38,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-11-19 21:43:38,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 575. [2024-11-19 21:43:38,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 452 states have (on average 1.592920353982301) internal successors, (720), 470 states have internal predecessors, (720), 96 states have call successors, (96), 25 states have call predecessors, (96), 26 states have return successors, (105), 92 states have call predecessors, (105), 91 states have call successors, (105) [2024-11-19 21:43:38,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 921 transitions. [2024-11-19 21:43:38,470 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 921 transitions. Word has length 117 [2024-11-19 21:43:38,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:43:38,470 INFO L471 AbstractCegarLoop]: Abstraction has 575 states and 921 transitions. [2024-11-19 21:43:38,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 21:43:38,471 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 921 transitions. [2024-11-19 21:43:38,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-19 21:43:38,472 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:43:38,473 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 21:43:38,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-19 21:43:38,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-19 21:43:38,674 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:43:38,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:43:38,674 INFO L85 PathProgramCache]: Analyzing trace with hash 456328213, now seen corresponding path program 1 times [2024-11-19 21:43:38,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:43:38,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459010535] [2024-11-19 21:43:38,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:43:38,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:43:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:38,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:43:38,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:38,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:38,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:38,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:43:38,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:39,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-19 21:43:39,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:39,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:39,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:39,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:39,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:39,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:39,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:39,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-19 21:43:39,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:39,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-19 21:43:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:39,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:39,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:39,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:39,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:39,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-19 21:43:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:39,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-19 21:43:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:39,283 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-19 21:43:39,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:43:39,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459010535] [2024-11-19 21:43:39,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459010535] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 21:43:39,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240823071] [2024-11-19 21:43:39,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:43:39,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:43:39,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 21:43:39,287 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 21:43:39,288 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 21:43:39,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:39,545 INFO L255 TraceCheckSpWp]: Trace formula consists of 1449 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 21:43:39,549 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 21:43:39,638 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-19 21:43:39,638 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 21:43:39,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240823071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:43:39,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 21:43:39,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 14 [2024-11-19 21:43:39,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813601260] [2024-11-19 21:43:39,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:43:39,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 21:43:39,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:43:39,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 21:43:39,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-19 21:43:39,640 INFO L87 Difference]: Start difference. First operand 575 states and 921 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 21:43:40,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 21:43:40,105 INFO L93 Difference]: Finished difference Result 1082 states and 1778 transitions. [2024-11-19 21:43:40,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 21:43:40,106 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 122 [2024-11-19 21:43:40,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 21:43:40,109 INFO L225 Difference]: With dead ends: 1082 [2024-11-19 21:43:40,109 INFO L226 Difference]: Without dead ends: 585 [2024-11-19 21:43:40,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-19 21:43:40,111 INFO L432 NwaCegarLoop]: 852 mSDtfsCounter, 814 mSDsluCounter, 1348 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 2200 SdHoareTripleChecker+Invalid, 445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 21:43:40,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [824 Valid, 2200 Invalid, 445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 21:43:40,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2024-11-19 21:43:40,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 585. [2024-11-19 21:43:40,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 460 states have (on average 1.5934782608695652) internal successors, (733), 479 states have internal predecessors, (733), 96 states have call successors, (96), 26 states have call predecessors, (96), 28 states have return successors, (106), 92 states have call predecessors, (106), 91 states have call successors, (106) [2024-11-19 21:43:40,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 935 transitions. [2024-11-19 21:43:40,222 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 935 transitions. Word has length 122 [2024-11-19 21:43:40,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 21:43:40,223 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 935 transitions. [2024-11-19 21:43:40,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-19 21:43:40,223 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 935 transitions. [2024-11-19 21:43:40,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-19 21:43:40,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 21:43:40,224 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1] [2024-11-19 21:43:40,234 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 21:43:40,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 21:43:40,429 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 21:43:40,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 21:43:40,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1197558838, now seen corresponding path program 1 times [2024-11-19 21:43:40,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 21:43:40,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635214828] [2024-11-19 21:43:40,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 21:43:40,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 21:43:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:40,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-19 21:43:40,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:40,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:40,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-19 21:43:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:40,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-19 21:43:40,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:40,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:40,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:40,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:40,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:40,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:40,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-19 21:43:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:40,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-19 21:43:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:40,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:40,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:40,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-19 21:43:40,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:41,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-19 21:43:41,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:41,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-19 21:43:41,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 21:43:41,014 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-19 21:43:41,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 21:43:41,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635214828] [2024-11-19 21:43:41,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635214828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 21:43:41,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 21:43:41,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-19 21:43:41,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366386691] [2024-11-19 21:43:41,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 21:43:41,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 21:43:41,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 21:43:41,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 21:43:41,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2024-11-19 21:43:41,016 INFO L87 Difference]: Start difference. First operand 585 states and 935 transitions. Second operand has 15 states, 15 states have (on average 5.6) internal successors, (84), 9 states have internal predecessors, (84), 4 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (12), 7 states have call predecessors, (12), 4 states have call successors, (12)