./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec9_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec9_product32.cil.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 6f20249a191004f50add5285446ee5ffba043f1ff9b40e0e115c641082e595e2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 15:39:09,667 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 15:39:09,725 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 15:39:09,730 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 15:39:09,733 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 15:39:09,745 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 15:39:09,745 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 15:39:09,745 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 15:39:09,745 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 15:39:09,745 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 15:39:09,746 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 15:39:09,746 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 15:39:09,746 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 15:39:09,746 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 15:39:09,746 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 15:39:09,746 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 15:39:09,746 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 15:39:09,746 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 15:39:09,746 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 15:39:09,746 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 15:39:09,746 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 15:39:09,746 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 15:39:09,746 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 15:39:09,746 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 15:39:09,746 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 15:39:09,746 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 15:39:09,747 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 15:39:09,747 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 15:39:09,747 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 15:39:09,747 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 15:39:09,747 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 15:39:09,747 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 15:39:09,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 15:39:09,747 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 15:39:09,747 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 15:39:09,747 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 15:39:09,747 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 15:39:09,747 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 15:39:09,747 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 15:39:09,747 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 15:39:09,747 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 15:39:09,747 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 15:39:09,747 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 15:39:09,747 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> 6f20249a191004f50add5285446ee5ffba043f1ff9b40e0e115c641082e595e2 [2025-02-05 15:39:09,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 15:39:10,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 15:39:10,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 15:39:10,006 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 15:39:10,006 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 15:39:10,007 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec9_product32.cil.c [2025-02-05 15:39:11,210 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/085e452fd/246a7e4cd60049f69d5a4ad6ccf03397/FLAG96b79e55c [2025-02-05 15:39:11,620 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 15:39:11,620 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec9_product32.cil.c [2025-02-05 15:39:11,636 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/085e452fd/246a7e4cd60049f69d5a4ad6ccf03397/FLAG96b79e55c [2025-02-05 15:39:11,657 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/085e452fd/246a7e4cd60049f69d5a4ad6ccf03397 [2025-02-05 15:39:11,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 15:39:11,662 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 15:39:11,664 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 15:39:11,664 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 15:39:11,671 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 15:39:11,672 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 03:39:11" (1/1) ... [2025-02-05 15:39:11,673 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76fe807 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:39:11, skipping insertion in model container [2025-02-05 15:39:11,673 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 03:39:11" (1/1) ... [2025-02-05 15:39:11,717 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 15:39:11,919 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec9_product32.cil.c[17414,17427] [2025-02-05 15:39:12,138 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 15:39:12,152 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 15:39:12,158 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [48] [2025-02-05 15:39:12,159 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [716] [2025-02-05 15:39:12,160 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [725] [2025-02-05 15:39:12,160 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification9_spec.i","") [739] [2025-02-05 15:39:12,160 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [905] [2025-02-05 15:39:12,160 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2574] [2025-02-05 15:39:12,160 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2940] [2025-02-05 15:39:12,160 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2978] [2025-02-05 15:39:12,161 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3330] [2025-02-05 15:39:12,161 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3448] [2025-02-05 15:39:12,182 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec9_product32.cil.c[17414,17427] [2025-02-05 15:39:12,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 15:39:12,271 INFO L204 MainTranslator]: Completed translation [2025-02-05 15:39:12,272 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:39:12 WrapperNode [2025-02-05 15:39:12,273 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 15:39:12,274 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 15:39:12,274 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 15:39:12,274 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 15:39:12,280 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:39:12" (1/1) ... [2025-02-05 15:39:12,306 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:39:12" (1/1) ... [2025-02-05 15:39:12,353 INFO L138 Inliner]: procedures = 99, calls = 352, calls flagged for inlining = 28, calls inlined = 24, statements flattened = 930 [2025-02-05 15:39:12,354 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 15:39:12,354 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 15:39:12,354 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 15:39:12,354 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 15:39:12,364 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:39:12" (1/1) ... [2025-02-05 15:39:12,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:39:12" (1/1) ... [2025-02-05 15:39:12,370 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:39:12" (1/1) ... [2025-02-05 15:39:12,399 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]. [2025-02-05 15:39:12,399 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:39:12" (1/1) ... [2025-02-05 15:39:12,399 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:39:12" (1/1) ... [2025-02-05 15:39:12,424 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:39:12" (1/1) ... [2025-02-05 15:39:12,427 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:39:12" (1/1) ... [2025-02-05 15:39:12,439 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:39:12" (1/1) ... [2025-02-05 15:39:12,444 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:39:12" (1/1) ... [2025-02-05 15:39:12,454 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 15:39:12,455 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 15:39:12,455 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 15:39:12,455 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 15:39:12,456 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:39:12" (1/1) ... [2025-02-05 15:39:12,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 15:39:12,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:39:12,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-05 15:39:12,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-05 15:39:12,519 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2025-02-05 15:39:12,520 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2025-02-05 15:39:12,520 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2025-02-05 15:39:12,520 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2025-02-05 15:39:12,520 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2025-02-05 15:39:12,520 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2025-02-05 15:39:12,520 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2025-02-05 15:39:12,520 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2025-02-05 15:39:12,520 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-02-05 15:39:12,521 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-02-05 15:39:12,521 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2025-02-05 15:39:12,521 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2025-02-05 15:39:12,521 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2025-02-05 15:39:12,521 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2025-02-05 15:39:12,522 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2025-02-05 15:39:12,522 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2025-02-05 15:39:12,522 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2025-02-05 15:39:12,522 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2025-02-05 15:39:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2025-02-05 15:39:12,523 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2025-02-05 15:39:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2025-02-05 15:39:12,523 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2025-02-05 15:39:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 15:39:12,523 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2025-02-05 15:39:12,524 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2025-02-05 15:39:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2025-02-05 15:39:12,524 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2025-02-05 15:39:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2025-02-05 15:39:12,524 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2025-02-05 15:39:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2025-02-05 15:39:12,524 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2025-02-05 15:39:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-02-05 15:39:12,524 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-02-05 15:39:12,524 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2025-02-05 15:39:12,525 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2025-02-05 15:39:12,525 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2025-02-05 15:39:12,525 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2025-02-05 15:39:12,525 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2025-02-05 15:39:12,525 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2025-02-05 15:39:12,525 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2025-02-05 15:39:12,525 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2025-02-05 15:39:12,525 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2025-02-05 15:39:12,526 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2025-02-05 15:39:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2025-02-05 15:39:12,526 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2025-02-05 15:39:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2025-02-05 15:39:12,526 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2025-02-05 15:39:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2025-02-05 15:39:12,526 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2025-02-05 15:39:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure isEmpty [2025-02-05 15:39:12,526 INFO L138 BoogieDeclarations]: Found implementation of procedure isEmpty [2025-02-05 15:39:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 15:39:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-05 15:39:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-05 15:39:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-05 15:39:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-05 15:39:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-05 15:39:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-05 15:39:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-05 15:39:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-02-05 15:39:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-02-05 15:39:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-02-05 15:39:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-02-05 15:39:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-02-05 15:39:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-02-05 15:39:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-02-05 15:39:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-02-05 15:39:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-02-05 15:39:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-02-05 15:39:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-02-05 15:39:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-02-05 15:39:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2025-02-05 15:39:12,526 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2025-02-05 15:39:12,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 15:39:12,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 15:39:12,527 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2025-02-05 15:39:12,527 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2025-02-05 15:39:12,527 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2025-02-05 15:39:12,527 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2025-02-05 15:39:12,716 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 15:39:12,718 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 15:39:12,787 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1887: #res#1 := ~retValue_acc~16#1; [2025-02-05 15:39:12,789 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1859-1: stopRequestedAtCurrentFloor__wrappee__empty_#res#1 := stopRequestedAtCurrentFloor__wrappee__empty_~retValue_acc~15#1; [2025-02-05 15:39:12,811 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3367: #res := ~retValue_acc~29; [2025-02-05 15:39:12,873 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2562: #res := ~retValue_acc~20; [2025-02-05 15:39:12,929 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1803-1: isAnyLiftButtonPressed_#res#1 := isAnyLiftButtonPressed_~retValue_acc~14#1; [2025-02-05 15:39:12,929 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1740-1: stopRequestedInDirection__wrappee__twothirdsfull_#res#1 := stopRequestedInDirection__wrappee__twothirdsfull_~retValue_acc~12#1; [2025-02-05 15:39:12,929 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1769: #res#1 := ~retValue_acc~13#1; [2025-02-05 15:39:12,934 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1932: #res := ~retValue_acc~18; [2025-02-05 15:39:13,110 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1700: #res := ~retValue_acc~11; [2025-02-05 15:39:13,202 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1335-1: anyStopRequested_#res#1 := anyStopRequested_~retValue_acc~9#1; [2025-02-05 15:39:13,202 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1348-1: isIdle_#res#1 := isIdle_~retValue_acc~10#1; [2025-02-05 15:39:13,204 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1172: #res := ~retValue_acc~5; [2025-02-05 15:39:13,208 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L713: #res := ~retValue_acc~2; [2025-02-05 15:39:13,217 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3445: #res := ~retValue_acc~31; [2025-02-05 15:39:13,220 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L986: #res := ~retValue_acc~3; [2025-02-05 15:39:13,222 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1163: #res := ~retValue_acc~4; [2025-02-05 15:39:13,329 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3406: #res := ~retValue_acc~30; [2025-02-05 15:39:13,351 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1255: #res := ~retValue_acc~8; [2025-02-05 15:39:13,362 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1206: #res := ~retValue_acc~6; [2025-02-05 15:39:13,450 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L402: #res := ~retValue_acc~1; [2025-02-05 15:39:13,502 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2975-1: valid_product_#res#1 := valid_product_~retValue_acc~26#1; [2025-02-05 15:39:13,502 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3327-1: main_#res#1 := main_~retValue_acc~28#1; [2025-02-05 15:39:13,510 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L166: #res := ~retValue_acc~0; [2025-02-05 15:39:13,594 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1918-1: stopRequestedAtCurrentFloor_#res#1 := stopRequestedAtCurrentFloor_~retValue_acc~17#1; [2025-02-05 15:39:13,732 INFO L? ?]: Removed 478 outVars from TransFormulas that were not future-live. [2025-02-05 15:39:13,733 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 15:39:13,755 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 15:39:13,755 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 15:39:13,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 03:39:13 BoogieIcfgContainer [2025-02-05 15:39:13,756 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 15:39:13,758 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 15:39:13,758 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 15:39:13,761 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 15:39:13,761 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 03:39:11" (1/3) ... [2025-02-05 15:39:13,761 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40f0570a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 03:39:13, skipping insertion in model container [2025-02-05 15:39:13,761 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:39:12" (2/3) ... [2025-02-05 15:39:13,762 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40f0570a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 03:39:13, skipping insertion in model container [2025-02-05 15:39:13,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 03:39:13" (3/3) ... [2025-02-05 15:39:13,762 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product32.cil.c [2025-02-05 15:39:13,772 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 15:39:13,774 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec9_product32.cil.c that has 29 procedures, 600 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-05 15:39:13,823 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 15:39:13,834 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;@69747acf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 15:39:13,834 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 15:39:13,843 INFO L276 IsEmpty]: Start isEmpty. Operand has 600 states, 466 states have (on average 1.6759656652360515) internal successors, (781), 490 states have internal predecessors, (781), 103 states have call successors, (103), 28 states have call predecessors, (103), 28 states have return successors, (103), 96 states have call predecessors, (103), 103 states have call successors, (103) [2025-02-05 15:39:13,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-02-05 15:39:13,859 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:39:13,859 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:39:13,859 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:39:13,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:39:13,864 INFO L85 PathProgramCache]: Analyzing trace with hash -784198750, now seen corresponding path program 1 times [2025-02-05 15:39:13,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:39:13,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780691369] [2025-02-05 15:39:13,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:13,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:39:13,966 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-02-05 15:39:14,058 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-02-05 15:39:14,059 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:14,062 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:14,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:39:14,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:39:14,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780691369] [2025-02-05 15:39:14,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780691369] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:39:14,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:39:14,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 15:39:14,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317232908] [2025-02-05 15:39:14,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:39:14,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:39:14,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:39:14,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:39:14,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:39:14,374 INFO L87 Difference]: Start difference. First operand has 600 states, 466 states have (on average 1.6759656652360515) internal successors, (781), 490 states have internal predecessors, (781), 103 states have call successors, (103), 28 states have call predecessors, (103), 28 states have return successors, (103), 96 states have call predecessors, (103), 103 states have call successors, (103) Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-05 15:39:14,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:39:14,499 INFO L93 Difference]: Finished difference Result 1180 states and 1948 transitions. [2025-02-05 15:39:14,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 15:39:14,501 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 80 [2025-02-05 15:39:14,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:39:14,526 INFO L225 Difference]: With dead ends: 1180 [2025-02-05 15:39:14,526 INFO L226 Difference]: Without dead ends: 591 [2025-02-05 15:39:14,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:39:14,540 INFO L435 NwaCegarLoop]: 967 mSDtfsCounter, 5 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2897 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:39:14,540 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2897 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:39:14,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2025-02-05 15:39:14,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2025-02-05 15:39:14,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 460 states have (on average 1.6695652173913043) internal successors, (768), 481 states have internal predecessors, (768), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2025-02-05 15:39:14,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 969 transitions. [2025-02-05 15:39:14,620 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 969 transitions. Word has length 80 [2025-02-05 15:39:14,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:39:14,621 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 969 transitions. [2025-02-05 15:39:14,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-05 15:39:14,621 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 969 transitions. [2025-02-05 15:39:14,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2025-02-05 15:39:14,628 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:39:14,629 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:39:14,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-05 15:39:14,630 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:39:14,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:39:14,630 INFO L85 PathProgramCache]: Analyzing trace with hash -2116564643, now seen corresponding path program 1 times [2025-02-05 15:39:14,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:39:14,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412459474] [2025-02-05 15:39:14,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:14,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:39:14,664 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 81 statements into 1 equivalence classes. [2025-02-05 15:39:14,684 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 81 of 81 statements. [2025-02-05 15:39:14,685 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:14,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:14,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:39:14,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:39:14,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412459474] [2025-02-05 15:39:14,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412459474] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:39:14,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:39:14,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 15:39:14,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658203153] [2025-02-05 15:39:14,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:39:14,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:39:14,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:39:14,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:39:14,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:39:14,873 INFO L87 Difference]: Start difference. First operand 591 states and 969 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-05 15:39:14,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:39:14,961 INFO L93 Difference]: Finished difference Result 1164 states and 1915 transitions. [2025-02-05 15:39:14,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 15:39:14,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 81 [2025-02-05 15:39:14,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:39:14,971 INFO L225 Difference]: With dead ends: 1164 [2025-02-05 15:39:14,971 INFO L226 Difference]: Without dead ends: 591 [2025-02-05 15:39:14,974 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:39:14,975 INFO L435 NwaCegarLoop]: 958 mSDtfsCounter, 4 mSDsluCounter, 1912 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2870 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:39:14,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2870 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:39:14,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2025-02-05 15:39:15,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2025-02-05 15:39:15,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 460 states have (on average 1.6673913043478261) internal successors, (767), 481 states have internal predecessors, (767), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2025-02-05 15:39:15,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 968 transitions. [2025-02-05 15:39:15,010 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 968 transitions. Word has length 81 [2025-02-05 15:39:15,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:39:15,010 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 968 transitions. [2025-02-05 15:39:15,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-05 15:39:15,010 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 968 transitions. [2025-02-05 15:39:15,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-02-05 15:39:15,013 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:39:15,013 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:39:15,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-05 15:39:15,013 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:39:15,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:39:15,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1648121761, now seen corresponding path program 1 times [2025-02-05 15:39:15,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:39:15,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078110237] [2025-02-05 15:39:15,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:15,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:39:15,041 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-02-05 15:39:15,051 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-02-05 15:39:15,052 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:15,052 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:15,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:39:15,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:39:15,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078110237] [2025-02-05 15:39:15,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078110237] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:39:15,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:39:15,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 15:39:15,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818569447] [2025-02-05 15:39:15,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:39:15,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:39:15,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:39:15,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:39:15,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:39:15,178 INFO L87 Difference]: Start difference. First operand 591 states and 968 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-05 15:39:15,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:39:15,244 INFO L93 Difference]: Finished difference Result 1164 states and 1914 transitions. [2025-02-05 15:39:15,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 15:39:15,245 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 82 [2025-02-05 15:39:15,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:39:15,252 INFO L225 Difference]: With dead ends: 1164 [2025-02-05 15:39:15,252 INFO L226 Difference]: Without dead ends: 591 [2025-02-05 15:39:15,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:39:15,256 INFO L435 NwaCegarLoop]: 958 mSDtfsCounter, 3 mSDsluCounter, 1912 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2870 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:39:15,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2870 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:39:15,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2025-02-05 15:39:15,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2025-02-05 15:39:15,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 460 states have (on average 1.6652173913043478) internal successors, (766), 481 states have internal predecessors, (766), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2025-02-05 15:39:15,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 967 transitions. [2025-02-05 15:39:15,288 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 967 transitions. Word has length 82 [2025-02-05 15:39:15,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:39:15,289 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 967 transitions. [2025-02-05 15:39:15,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-05 15:39:15,290 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 967 transitions. [2025-02-05 15:39:15,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-02-05 15:39:15,294 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:39:15,294 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:39:15,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-05 15:39:15,294 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:39:15,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:39:15,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1189181702, now seen corresponding path program 1 times [2025-02-05 15:39:15,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:39:15,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262735603] [2025-02-05 15:39:15,295 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:15,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:39:15,317 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-02-05 15:39:15,329 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-02-05 15:39:15,333 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:15,333 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:15,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:39:15,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:39:15,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262735603] [2025-02-05 15:39:15,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262735603] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:39:15,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:39:15,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 15:39:15,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857750757] [2025-02-05 15:39:15,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:39:15,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:39:15,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:39:15,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:39:15,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:39:15,450 INFO L87 Difference]: Start difference. First operand 591 states and 967 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-05 15:39:15,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:39:15,499 INFO L93 Difference]: Finished difference Result 1164 states and 1913 transitions. [2025-02-05 15:39:15,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 15:39:15,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 83 [2025-02-05 15:39:15,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:39:15,505 INFO L225 Difference]: With dead ends: 1164 [2025-02-05 15:39:15,505 INFO L226 Difference]: Without dead ends: 591 [2025-02-05 15:39:15,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:39:15,509 INFO L435 NwaCegarLoop]: 958 mSDtfsCounter, 2 mSDsluCounter, 1912 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2870 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:39:15,510 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2870 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:39:15,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2025-02-05 15:39:15,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2025-02-05 15:39:15,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 460 states have (on average 1.6630434782608696) internal successors, (765), 481 states have internal predecessors, (765), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2025-02-05 15:39:15,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 966 transitions. [2025-02-05 15:39:15,542 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 966 transitions. Word has length 83 [2025-02-05 15:39:15,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:39:15,543 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 966 transitions. [2025-02-05 15:39:15,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-05 15:39:15,543 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 966 transitions. [2025-02-05 15:39:15,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-02-05 15:39:15,547 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:39:15,547 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:39:15,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-05 15:39:15,548 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:39:15,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:39:15,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1024829156, now seen corresponding path program 1 times [2025-02-05 15:39:15,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:39:15,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405667789] [2025-02-05 15:39:15,548 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:15,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:39:15,567 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-02-05 15:39:15,579 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-02-05 15:39:15,580 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:15,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:15,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:39:15,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:39:15,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405667789] [2025-02-05 15:39:15,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405667789] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:39:15,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:39:15,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 15:39:15,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473806751] [2025-02-05 15:39:15,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:39:15,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:39:15,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:39:15,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:39:15,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:39:15,680 INFO L87 Difference]: Start difference. First operand 591 states and 966 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-05 15:39:15,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:39:15,719 INFO L93 Difference]: Finished difference Result 1164 states and 1912 transitions. [2025-02-05 15:39:15,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 15:39:15,719 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 84 [2025-02-05 15:39:15,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:39:15,724 INFO L225 Difference]: With dead ends: 1164 [2025-02-05 15:39:15,724 INFO L226 Difference]: Without dead ends: 591 [2025-02-05 15:39:15,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:39:15,726 INFO L435 NwaCegarLoop]: 958 mSDtfsCounter, 1 mSDsluCounter, 1912 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2870 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:39:15,726 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2870 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:39:15,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2025-02-05 15:39:15,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 591. [2025-02-05 15:39:15,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 460 states have (on average 1.6608695652173913) internal successors, (764), 481 states have internal predecessors, (764), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2025-02-05 15:39:15,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 965 transitions. [2025-02-05 15:39:15,744 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 965 transitions. Word has length 84 [2025-02-05 15:39:15,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:39:15,744 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 965 transitions. [2025-02-05 15:39:15,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-05 15:39:15,745 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 965 transitions. [2025-02-05 15:39:15,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2025-02-05 15:39:15,746 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:39:15,747 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:39:15,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-05 15:39:15,747 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:39:15,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:39:15,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1402754921, now seen corresponding path program 1 times [2025-02-05 15:39:15,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:39:15,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978975866] [2025-02-05 15:39:15,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:15,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:39:15,760 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-02-05 15:39:15,767 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-02-05 15:39:15,767 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:15,767 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:15,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:39:15,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:39:15,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978975866] [2025-02-05 15:39:15,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978975866] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:39:15,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:39:15,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-05 15:39:15,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433846626] [2025-02-05 15:39:15,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:39:15,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-05 15:39:15,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:39:15,940 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-05 15:39:15,940 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:39:15,940 INFO L87 Difference]: Start difference. First operand 591 states and 965 transitions. Second operand has 9 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-02-05 15:39:16,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:39:16,046 INFO L93 Difference]: Finished difference Result 1130 states and 1844 transitions. [2025-02-05 15:39:16,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-05 15:39:16,047 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 85 [2025-02-05 15:39:16,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:39:16,051 INFO L225 Difference]: With dead ends: 1130 [2025-02-05 15:39:16,051 INFO L226 Difference]: Without dead ends: 606 [2025-02-05 15:39:16,053 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:39:16,054 INFO L435 NwaCegarLoop]: 953 mSDtfsCounter, 91 mSDsluCounter, 6588 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 7541 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:39:16,054 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 7541 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:39:16,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2025-02-05 15:39:16,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 604. [2025-02-05 15:39:16,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 470 states have (on average 1.6574468085106382) internal successors, (779), 493 states have internal predecessors, (779), 104 states have call successors, (104), 28 states have call predecessors, (104), 29 states have return successors, (101), 96 states have call predecessors, (101), 99 states have call successors, (101) [2025-02-05 15:39:16,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 984 transitions. [2025-02-05 15:39:16,078 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 984 transitions. Word has length 85 [2025-02-05 15:39:16,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:39:16,078 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 984 transitions. [2025-02-05 15:39:16,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-02-05 15:39:16,078 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 984 transitions. [2025-02-05 15:39:16,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2025-02-05 15:39:16,080 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:39:16,080 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:39:16,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-05 15:39:16,081 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:39:16,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:39:16,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1221698806, now seen corresponding path program 1 times [2025-02-05 15:39:16,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:39:16,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897280866] [2025-02-05 15:39:16,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:16,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:39:16,095 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-02-05 15:39:16,101 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-02-05 15:39:16,101 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:16,101 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:16,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:39:16,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:39:16,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897280866] [2025-02-05 15:39:16,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897280866] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:39:16,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:39:16,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 15:39:16,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702033615] [2025-02-05 15:39:16,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:39:16,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:39:16,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:39:16,160 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:39:16,160 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:39:16,161 INFO L87 Difference]: Start difference. First operand 604 states and 984 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-05 15:39:16,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:39:16,192 INFO L93 Difference]: Finished difference Result 1182 states and 1938 transitions. [2025-02-05 15:39:16,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 15:39:16,193 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 85 [2025-02-05 15:39:16,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:39:16,197 INFO L225 Difference]: With dead ends: 1182 [2025-02-05 15:39:16,197 INFO L226 Difference]: Without dead ends: 585 [2025-02-05 15:39:16,199 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:39:16,200 INFO L435 NwaCegarLoop]: 959 mSDtfsCounter, 0 mSDsluCounter, 1913 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2872 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:39:16,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2872 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:39:16,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2025-02-05 15:39:16,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 585. [2025-02-05 15:39:16,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 454 states have (on average 1.6519823788546255) internal successors, (750), 475 states have internal predecessors, (750), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2025-02-05 15:39:16,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 951 transitions. [2025-02-05 15:39:16,246 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 951 transitions. Word has length 85 [2025-02-05 15:39:16,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:39:16,246 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 951 transitions. [2025-02-05 15:39:16,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-05 15:39:16,247 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 951 transitions. [2025-02-05 15:39:16,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-02-05 15:39:16,248 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:39:16,248 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:39:16,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-05 15:39:16,248 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:39:16,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:39:16,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1479037475, now seen corresponding path program 1 times [2025-02-05 15:39:16,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:39:16,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675932474] [2025-02-05 15:39:16,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:16,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:39:16,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-02-05 15:39:16,273 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-02-05 15:39:16,273 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:16,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:16,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:39:16,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:39:16,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675932474] [2025-02-05 15:39:16,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675932474] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:39:16,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:39:16,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 15:39:16,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566906819] [2025-02-05 15:39:16,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:39:16,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 15:39:16,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:39:16,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 15:39:16,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:39:16,371 INFO L87 Difference]: Start difference. First operand 585 states and 951 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-05 15:39:16,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:39:16,539 INFO L93 Difference]: Finished difference Result 1127 states and 1836 transitions. [2025-02-05 15:39:16,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:39:16,540 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 86 [2025-02-05 15:39:16,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:39:16,545 INFO L225 Difference]: With dead ends: 1127 [2025-02-05 15:39:16,545 INFO L226 Difference]: Without dead ends: 594 [2025-02-05 15:39:16,548 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:39:16,548 INFO L435 NwaCegarLoop]: 908 mSDtfsCounter, 55 mSDsluCounter, 3603 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4511 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:39:16,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4511 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:39:16,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2025-02-05 15:39:16,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 585. [2025-02-05 15:39:16,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 454 states have (on average 1.6431718061674008) internal successors, (746), 475 states have internal predecessors, (746), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2025-02-05 15:39:16,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 947 transitions. [2025-02-05 15:39:16,570 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 947 transitions. Word has length 86 [2025-02-05 15:39:16,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:39:16,571 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 947 transitions. [2025-02-05 15:39:16,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-05 15:39:16,571 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 947 transitions. [2025-02-05 15:39:16,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-02-05 15:39:16,573 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:39:16,573 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:39:16,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-05 15:39:16,573 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:39:16,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:39:16,574 INFO L85 PathProgramCache]: Analyzing trace with hash 309656366, now seen corresponding path program 1 times [2025-02-05 15:39:16,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:39:16,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124732269] [2025-02-05 15:39:16,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:16,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:39:16,587 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-02-05 15:39:16,596 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-02-05 15:39:16,596 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:16,596 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:16,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:39:16,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:39:16,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124732269] [2025-02-05 15:39:16,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124732269] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:39:16,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:39:16,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 15:39:16,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1801734014] [2025-02-05 15:39:16,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:39:16,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 15:39:16,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:39:16,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 15:39:16,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:39:16,687 INFO L87 Difference]: Start difference. First operand 585 states and 947 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-05 15:39:16,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:39:16,829 INFO L93 Difference]: Finished difference Result 1127 states and 1832 transitions. [2025-02-05 15:39:16,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:39:16,830 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 87 [2025-02-05 15:39:16,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:39:16,835 INFO L225 Difference]: With dead ends: 1127 [2025-02-05 15:39:16,835 INFO L226 Difference]: Without dead ends: 594 [2025-02-05 15:39:16,837 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:39:16,838 INFO L435 NwaCegarLoop]: 908 mSDtfsCounter, 54 mSDsluCounter, 3603 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 4511 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:39:16,838 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 4511 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:39:16,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2025-02-05 15:39:16,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 585. [2025-02-05 15:39:16,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 454 states have (on average 1.6343612334801763) internal successors, (742), 475 states have internal predecessors, (742), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2025-02-05 15:39:16,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 943 transitions. [2025-02-05 15:39:16,856 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 943 transitions. Word has length 87 [2025-02-05 15:39:16,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:39:16,857 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 943 transitions. [2025-02-05 15:39:16,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-05 15:39:16,857 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 943 transitions. [2025-02-05 15:39:16,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-02-05 15:39:16,859 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:39:16,859 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:39:16,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-05 15:39:16,859 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:39:16,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:39:16,859 INFO L85 PathProgramCache]: Analyzing trace with hash 867579078, now seen corresponding path program 1 times [2025-02-05 15:39:16,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:39:16,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608364831] [2025-02-05 15:39:16,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:16,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:39:16,873 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-02-05 15:39:16,884 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-02-05 15:39:16,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:16,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:17,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:39:17,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:39:17,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608364831] [2025-02-05 15:39:17,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608364831] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:39:17,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:39:17,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 15:39:17,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051762760] [2025-02-05 15:39:17,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:39:17,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 15:39:17,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:39:17,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 15:39:17,030 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:39:17,030 INFO L87 Difference]: Start difference. First operand 585 states and 943 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-05 15:39:17,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:39:17,160 INFO L93 Difference]: Finished difference Result 1127 states and 1828 transitions. [2025-02-05 15:39:17,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:39:17,160 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 88 [2025-02-05 15:39:17,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:39:17,164 INFO L225 Difference]: With dead ends: 1127 [2025-02-05 15:39:17,165 INFO L226 Difference]: Without dead ends: 594 [2025-02-05 15:39:17,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:39:17,167 INFO L435 NwaCegarLoop]: 907 mSDtfsCounter, 53 mSDsluCounter, 3586 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 4493 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:39:17,168 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 4493 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:39:17,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2025-02-05 15:39:17,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 585. [2025-02-05 15:39:17,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 585 states, 454 states have (on average 1.6255506607929515) internal successors, (738), 475 states have internal predecessors, (738), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2025-02-05 15:39:17,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 939 transitions. [2025-02-05 15:39:17,188 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 939 transitions. Word has length 88 [2025-02-05 15:39:17,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:39:17,189 INFO L471 AbstractCegarLoop]: Abstraction has 585 states and 939 transitions. [2025-02-05 15:39:17,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-05 15:39:17,189 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 939 transitions. [2025-02-05 15:39:17,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-02-05 15:39:17,191 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:39:17,191 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:39:17,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-05 15:39:17,191 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:39:17,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:39:17,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1589951627, now seen corresponding path program 1 times [2025-02-05 15:39:17,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:39:17,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143802043] [2025-02-05 15:39:17,192 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:17,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:39:17,206 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-02-05 15:39:17,211 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-02-05 15:39:17,211 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:17,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:17,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:39:17,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:39:17,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143802043] [2025-02-05 15:39:17,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143802043] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:39:17,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:39:17,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-05 15:39:17,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579633029] [2025-02-05 15:39:17,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:39:17,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 15:39:17,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:39:17,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 15:39:17,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:39:17,310 INFO L87 Difference]: Start difference. First operand 585 states and 939 transitions. Second operand has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-02-05 15:39:17,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:39:17,375 INFO L93 Difference]: Finished difference Result 1118 states and 1810 transitions. [2025-02-05 15:39:17,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 15:39:17,376 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 88 [2025-02-05 15:39:17,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:39:17,380 INFO L225 Difference]: With dead ends: 1118 [2025-02-05 15:39:17,381 INFO L226 Difference]: Without dead ends: 564 [2025-02-05 15:39:17,383 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-05 15:39:17,384 INFO L435 NwaCegarLoop]: 928 mSDtfsCounter, 84 mSDsluCounter, 4567 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 5495 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:39:17,384 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 5495 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:39:17,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2025-02-05 15:39:17,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 564. [2025-02-05 15:39:17,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 433 states have (on average 1.625866050808314) internal successors, (704), 454 states have internal predecessors, (704), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2025-02-05 15:39:17,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 905 transitions. [2025-02-05 15:39:17,402 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 905 transitions. Word has length 88 [2025-02-05 15:39:17,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:39:17,404 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 905 transitions. [2025-02-05 15:39:17,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-02-05 15:39:17,404 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 905 transitions. [2025-02-05 15:39:17,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-02-05 15:39:17,406 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:39:17,406 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:39:17,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-05 15:39:17,406 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:39:17,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:39:17,406 INFO L85 PathProgramCache]: Analyzing trace with hash -862654607, now seen corresponding path program 1 times [2025-02-05 15:39:17,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:39:17,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891544920] [2025-02-05 15:39:17,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:17,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:39:17,421 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-02-05 15:39:17,430 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-02-05 15:39:17,431 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:17,431 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:17,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:39:17,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:39:17,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891544920] [2025-02-05 15:39:17,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891544920] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:39:17,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:39:17,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 15:39:17,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779353079] [2025-02-05 15:39:17,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:39:17,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 15:39:17,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:39:17,517 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 15:39:17,517 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:39:17,517 INFO L87 Difference]: Start difference. First operand 564 states and 905 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-05 15:39:17,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:39:17,580 INFO L93 Difference]: Finished difference Result 1097 states and 1776 transitions. [2025-02-05 15:39:17,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:39:17,581 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 89 [2025-02-05 15:39:17,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:39:17,585 INFO L225 Difference]: With dead ends: 1097 [2025-02-05 15:39:17,585 INFO L226 Difference]: Without dead ends: 564 [2025-02-05 15:39:17,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:39:17,588 INFO L435 NwaCegarLoop]: 888 mSDtfsCounter, 17 mSDsluCounter, 3543 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4431 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:39:17,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4431 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:39:17,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2025-02-05 15:39:17,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 564. [2025-02-05 15:39:17,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 433 states have (on average 1.6235565819861433) internal successors, (703), 454 states have internal predecessors, (703), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2025-02-05 15:39:17,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 904 transitions. [2025-02-05 15:39:17,624 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 904 transitions. Word has length 89 [2025-02-05 15:39:17,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:39:17,624 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 904 transitions. [2025-02-05 15:39:17,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-05 15:39:17,625 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 904 transitions. [2025-02-05 15:39:17,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2025-02-05 15:39:17,626 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:39:17,626 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:39:17,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-05 15:39:17,626 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:39:17,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:39:17,627 INFO L85 PathProgramCache]: Analyzing trace with hash -511292567, now seen corresponding path program 1 times [2025-02-05 15:39:17,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:39:17,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10762243] [2025-02-05 15:39:17,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:17,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:39:17,640 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-02-05 15:39:17,648 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-02-05 15:39:17,648 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:17,648 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:17,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:39:17,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:39:17,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10762243] [2025-02-05 15:39:17,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10762243] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:39:17,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:39:17,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 15:39:17,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98298158] [2025-02-05 15:39:17,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:39:17,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 15:39:17,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:39:17,749 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 15:39:17,749 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:39:17,749 INFO L87 Difference]: Start difference. First operand 564 states and 904 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-05 15:39:17,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:39:17,819 INFO L93 Difference]: Finished difference Result 1097 states and 1775 transitions. [2025-02-05 15:39:17,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:39:17,820 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 90 [2025-02-05 15:39:17,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:39:17,824 INFO L225 Difference]: With dead ends: 1097 [2025-02-05 15:39:17,825 INFO L226 Difference]: Without dead ends: 564 [2025-02-05 15:39:17,827 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:39:17,827 INFO L435 NwaCegarLoop]: 888 mSDtfsCounter, 16 mSDsluCounter, 3543 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4431 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:39:17,828 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4431 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:39:17,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2025-02-05 15:39:17,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 564. [2025-02-05 15:39:17,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 433 states have (on average 1.6212471131639723) internal successors, (702), 454 states have internal predecessors, (702), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2025-02-05 15:39:17,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 903 transitions. [2025-02-05 15:39:17,846 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 903 transitions. Word has length 90 [2025-02-05 15:39:17,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:39:17,846 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 903 transitions. [2025-02-05 15:39:17,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-02-05 15:39:17,847 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 903 transitions. [2025-02-05 15:39:17,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-02-05 15:39:17,848 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:39:17,849 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:39:17,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-05 15:39:17,849 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:39:17,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:39:17,849 INFO L85 PathProgramCache]: Analyzing trace with hash -54972492, now seen corresponding path program 1 times [2025-02-05 15:39:17,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:39:17,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68039353] [2025-02-05 15:39:17,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:17,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:39:17,863 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-02-05 15:39:17,871 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-02-05 15:39:17,871 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:17,871 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:18,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:39:18,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:39:18,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68039353] [2025-02-05 15:39:18,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68039353] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:39:18,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:39:18,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-05 15:39:18,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363243387] [2025-02-05 15:39:18,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:39:18,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-05 15:39:18,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:39:18,021 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-05 15:39:18,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:39:18,022 INFO L87 Difference]: Start difference. First operand 564 states and 903 transitions. Second operand has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-02-05 15:39:18,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:39:18,110 INFO L93 Difference]: Finished difference Result 1091 states and 1763 transitions. [2025-02-05 15:39:18,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-05 15:39:18,111 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 91 [2025-02-05 15:39:18,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:39:18,115 INFO L225 Difference]: With dead ends: 1091 [2025-02-05 15:39:18,115 INFO L226 Difference]: Without dead ends: 564 [2025-02-05 15:39:18,117 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:39:18,118 INFO L435 NwaCegarLoop]: 887 mSDtfsCounter, 6 mSDsluCounter, 7074 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7961 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:39:18,118 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 7961 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:39:18,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2025-02-05 15:39:18,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 564. [2025-02-05 15:39:18,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 433 states have (on average 1.6189376443418013) internal successors, (701), 454 states have internal predecessors, (701), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2025-02-05 15:39:18,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 902 transitions. [2025-02-05 15:39:18,145 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 902 transitions. Word has length 91 [2025-02-05 15:39:18,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:39:18,146 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 902 transitions. [2025-02-05 15:39:18,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.777777777777778) internal successors, (70), 9 states have internal predecessors, (70), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-02-05 15:39:18,146 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 902 transitions. [2025-02-05 15:39:18,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-02-05 15:39:18,149 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:39:18,149 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:39:18,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-05 15:39:18,150 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:39:18,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:39:18,150 INFO L85 PathProgramCache]: Analyzing trace with hash 2039758396, now seen corresponding path program 1 times [2025-02-05 15:39:18,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:39:18,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148040545] [2025-02-05 15:39:18,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:18,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:39:18,170 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-02-05 15:39:18,180 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-02-05 15:39:18,181 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:18,181 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:18,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 15:39:18,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:39:18,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148040545] [2025-02-05 15:39:18,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148040545] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:39:18,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:39:18,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 15:39:18,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512914470] [2025-02-05 15:39:18,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:39:18,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 15:39:18,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:39:18,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 15:39:18,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:39:18,366 INFO L87 Difference]: Start difference. First operand 564 states and 902 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 6 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2025-02-05 15:39:20,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:39:20,468 INFO L93 Difference]: Finished difference Result 1737 states and 2841 transitions. [2025-02-05 15:39:20,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:39:20,469 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 6 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 92 [2025-02-05 15:39:20,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:39:20,482 INFO L225 Difference]: With dead ends: 1737 [2025-02-05 15:39:20,482 INFO L226 Difference]: Without dead ends: 1218 [2025-02-05 15:39:20,487 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2025-02-05 15:39:20,488 INFO L435 NwaCegarLoop]: 350 mSDtfsCounter, 2059 mSDsluCounter, 743 mSDsCounter, 0 mSdLazyCounter, 2086 mSolverCounterSat, 448 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2130 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 2534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 448 IncrementalHoareTripleChecker+Valid, 2086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-02-05 15:39:20,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2130 Valid, 1093 Invalid, 2534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [448 Valid, 2086 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-02-05 15:39:20,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1218 states. [2025-02-05 15:39:20,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1218 to 1086. [2025-02-05 15:39:20,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 841 states have (on average 1.638525564803805) internal successors, (1378), 871 states have internal predecessors, (1378), 193 states have call successors, (193), 50 states have call predecessors, (193), 51 states have return successors, (195), 177 states have call predecessors, (195), 188 states have call successors, (195) [2025-02-05 15:39:20,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1766 transitions. [2025-02-05 15:39:20,558 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1766 transitions. Word has length 92 [2025-02-05 15:39:20,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:39:20,559 INFO L471 AbstractCegarLoop]: Abstraction has 1086 states and 1766 transitions. [2025-02-05 15:39:20,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 6 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2025-02-05 15:39:20,559 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1766 transitions. [2025-02-05 15:39:20,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-02-05 15:39:20,563 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:39:20,563 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:39:20,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-02-05 15:39:20,563 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:39:20,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:39:20,564 INFO L85 PathProgramCache]: Analyzing trace with hash 821407046, now seen corresponding path program 1 times [2025-02-05 15:39:20,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:39:20,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966186947] [2025-02-05 15:39:20,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:20,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:39:20,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-02-05 15:39:20,621 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-02-05 15:39:20,621 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:20,621 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:20,731 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-02-05 15:39:20,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:39:20,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966186947] [2025-02-05 15:39:20,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966186947] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:39:20,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325645814] [2025-02-05 15:39:20,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:20,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:39:20,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:39:20,735 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 15:39:20,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-05 15:39:20,869 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-02-05 15:39:21,028 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-02-05 15:39:21,029 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:21,029 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:21,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 1771 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:39:21,044 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:39:21,107 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-05 15:39:21,107 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:39:21,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325645814] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:39:21,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:39:21,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2025-02-05 15:39:21,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304825544] [2025-02-05 15:39:21,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:39:21,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:39:21,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:39:21,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:39:21,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:39:21,108 INFO L87 Difference]: Start difference. First operand 1086 states and 1766 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-02-05 15:39:21,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:39:21,199 INFO L93 Difference]: Finished difference Result 2730 states and 4489 transitions. [2025-02-05 15:39:21,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:39:21,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 147 [2025-02-05 15:39:21,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:39:21,213 INFO L225 Difference]: With dead ends: 2730 [2025-02-05 15:39:21,214 INFO L226 Difference]: Without dead ends: 1689 [2025-02-05 15:39:21,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:39:21,220 INFO L435 NwaCegarLoop]: 1021 mSDtfsCounter, 870 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 1862 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:39:21,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 1862 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:39:21,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1689 states. [2025-02-05 15:39:21,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1689 to 1687. [2025-02-05 15:39:21,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1687 states, 1302 states have (on average 1.6397849462365592) internal successors, (2135), 1348 states have internal predecessors, (2135), 304 states have call successors, (304), 76 states have call predecessors, (304), 80 states have return successors, (325), 287 states have call predecessors, (325), 299 states have call successors, (325) [2025-02-05 15:39:21,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1687 states to 1687 states and 2764 transitions. [2025-02-05 15:39:21,319 INFO L78 Accepts]: Start accepts. Automaton has 1687 states and 2764 transitions. Word has length 147 [2025-02-05 15:39:21,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:39:21,319 INFO L471 AbstractCegarLoop]: Abstraction has 1687 states and 2764 transitions. [2025-02-05 15:39:21,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-02-05 15:39:21,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1687 states and 2764 transitions. [2025-02-05 15:39:21,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2025-02-05 15:39:21,326 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:39:21,326 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:39:21,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-05 15:39:21,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-02-05 15:39:21,531 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:39:21,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:39:21,531 INFO L85 PathProgramCache]: Analyzing trace with hash -306398578, now seen corresponding path program 1 times [2025-02-05 15:39:21,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:39:21,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137552631] [2025-02-05 15:39:21,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:21,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:39:21,550 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-02-05 15:39:21,564 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-02-05 15:39:21,565 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:21,565 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:21,740 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-02-05 15:39:21,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:39:21,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137552631] [2025-02-05 15:39:21,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137552631] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:39:21,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099969733] [2025-02-05 15:39:21,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:21,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:39:21,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:39:21,745 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 15:39:21,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-05 15:39:21,888 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-02-05 15:39:22,047 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-02-05 15:39:22,047 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:22,047 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:22,054 INFO L256 TraceCheckSpWp]: Trace formula consists of 1773 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:39:22,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:39:22,113 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-05 15:39:22,113 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:39:22,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099969733] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:39:22,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:39:22,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2025-02-05 15:39:22,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267804544] [2025-02-05 15:39:22,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:39:22,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:39:22,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:39:22,115 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:39:22,115 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:39:22,115 INFO L87 Difference]: Start difference. First operand 1687 states and 2764 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-02-05 15:39:22,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:39:22,222 INFO L93 Difference]: Finished difference Result 4535 states and 7511 transitions. [2025-02-05 15:39:22,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:39:22,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 148 [2025-02-05 15:39:22,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:39:22,252 INFO L225 Difference]: With dead ends: 4535 [2025-02-05 15:39:22,252 INFO L226 Difference]: Without dead ends: 2893 [2025-02-05 15:39:22,262 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:39:22,263 INFO L435 NwaCegarLoop]: 975 mSDtfsCounter, 869 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 869 SdHoareTripleChecker+Valid, 1818 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:39:22,263 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [869 Valid, 1818 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:39:22,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2025-02-05 15:39:22,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 2890. [2025-02-05 15:39:22,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2890 states, 2225 states have (on average 1.6404494382022472) internal successors, (3650), 2303 states have internal predecessors, (3650), 526 states have call successors, (526), 128 states have call predecessors, (526), 138 states have return successors, (603), 507 states have call predecessors, (603), 521 states have call successors, (603) [2025-02-05 15:39:22,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2890 states to 2890 states and 4779 transitions. [2025-02-05 15:39:22,408 INFO L78 Accepts]: Start accepts. Automaton has 2890 states and 4779 transitions. Word has length 148 [2025-02-05 15:39:22,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:39:22,409 INFO L471 AbstractCegarLoop]: Abstraction has 2890 states and 4779 transitions. [2025-02-05 15:39:22,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-02-05 15:39:22,410 INFO L276 IsEmpty]: Start isEmpty. Operand 2890 states and 4779 transitions. [2025-02-05 15:39:22,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-02-05 15:39:22,416 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:39:22,417 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:39:22,426 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-05 15:39:22,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-02-05 15:39:22,617 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:39:22,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:39:22,619 INFO L85 PathProgramCache]: Analyzing trace with hash -908638336, now seen corresponding path program 1 times [2025-02-05 15:39:22,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:39:22,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632932563] [2025-02-05 15:39:22,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:22,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:39:22,643 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-02-05 15:39:22,660 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-02-05 15:39:22,660 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:22,660 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:22,826 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-02-05 15:39:22,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:39:22,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632932563] [2025-02-05 15:39:22,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632932563] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:39:22,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030122854] [2025-02-05 15:39:22,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:22,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:39:22,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:39:22,829 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 15:39:22,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-05 15:39:22,960 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-02-05 15:39:23,114 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-02-05 15:39:23,114 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:23,114 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:23,121 INFO L256 TraceCheckSpWp]: Trace formula consists of 1775 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:39:23,125 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:39:23,179 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-05 15:39:23,179 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:39:23,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030122854] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:39:23,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:39:23,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2025-02-05 15:39:23,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886654321] [2025-02-05 15:39:23,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:39:23,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:39:23,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:39:23,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:39:23,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:39:23,182 INFO L87 Difference]: Start difference. First operand 2890 states and 4779 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-02-05 15:39:23,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:39:23,339 INFO L93 Difference]: Finished difference Result 8146 states and 13634 transitions. [2025-02-05 15:39:23,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:39:23,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 149 [2025-02-05 15:39:23,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:39:23,376 INFO L225 Difference]: With dead ends: 8146 [2025-02-05 15:39:23,377 INFO L226 Difference]: Without dead ends: 5301 [2025-02-05 15:39:23,394 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:39:23,395 INFO L435 NwaCegarLoop]: 965 mSDtfsCounter, 868 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 1811 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:39:23,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [868 Valid, 1811 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:39:23,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5301 states. [2025-02-05 15:39:23,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5301 to 5297. [2025-02-05 15:39:23,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5297 states, 4072 states have (on average 1.6402259332023577) internal successors, (6679), 4214 states have internal predecessors, (6679), 970 states have call successors, (970), 232 states have call predecessors, (970), 254 states have return successors, (1213), 947 states have call predecessors, (1213), 965 states have call successors, (1213) [2025-02-05 15:39:23,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5297 states to 5297 states and 8862 transitions. [2025-02-05 15:39:23,706 INFO L78 Accepts]: Start accepts. Automaton has 5297 states and 8862 transitions. Word has length 149 [2025-02-05 15:39:23,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:39:23,707 INFO L471 AbstractCegarLoop]: Abstraction has 5297 states and 8862 transitions. [2025-02-05 15:39:23,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-02-05 15:39:23,707 INFO L276 IsEmpty]: Start isEmpty. Operand 5297 states and 8862 transitions. [2025-02-05 15:39:23,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-02-05 15:39:23,713 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:39:23,713 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:39:23,721 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-02-05 15:39:23,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:39:23,917 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:39:23,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:39:23,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1859098882, now seen corresponding path program 1 times [2025-02-05 15:39:23,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:39:23,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284533750] [2025-02-05 15:39:23,919 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:23,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:39:23,945 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-02-05 15:39:23,958 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-02-05 15:39:23,958 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:23,958 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:24,223 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-02-05 15:39:24,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:39:24,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284533750] [2025-02-05 15:39:24,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284533750] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:39:24,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:39:24,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-02-05 15:39:24,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158663977] [2025-02-05 15:39:24,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:39:24,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-05 15:39:24,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:39:24,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-05 15:39:24,225 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-02-05 15:39:24,228 INFO L87 Difference]: Start difference. First operand 5297 states and 8862 transitions. Second operand has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2025-02-05 15:39:29,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:39:29,394 INFO L93 Difference]: Finished difference Result 19493 states and 32973 transitions. [2025-02-05 15:39:29,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-05 15:39:29,395 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) Word has length 149 [2025-02-05 15:39:29,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:39:29,500 INFO L225 Difference]: With dead ends: 19493 [2025-02-05 15:39:29,501 INFO L226 Difference]: Without dead ends: 14241 [2025-02-05 15:39:29,531 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=583, Unknown=0, NotChecked=0, Total=702 [2025-02-05 15:39:29,531 INFO L435 NwaCegarLoop]: 581 mSDtfsCounter, 3054 mSDsluCounter, 2900 mSDsCounter, 0 mSdLazyCounter, 10178 mSolverCounterSat, 983 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3132 SdHoareTripleChecker+Valid, 3481 SdHoareTripleChecker+Invalid, 11161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 983 IncrementalHoareTripleChecker+Valid, 10178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2025-02-05 15:39:29,531 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3132 Valid, 3481 Invalid, 11161 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [983 Valid, 10178 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2025-02-05 15:39:29,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14241 states. [2025-02-05 15:39:30,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14241 to 13852. [2025-02-05 15:39:30,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13852 states, 10309 states have (on average 1.5966631099039674) internal successors, (16460), 10707 states have internal predecessors, (16460), 2863 states have call successors, (2863), 571 states have call predecessors, (2863), 679 states have return successors, (3772), 2837 states have call predecessors, (3772), 2858 states have call successors, (3772) [2025-02-05 15:39:30,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13852 states to 13852 states and 23095 transitions. [2025-02-05 15:39:30,155 INFO L78 Accepts]: Start accepts. Automaton has 13852 states and 23095 transitions. Word has length 149 [2025-02-05 15:39:30,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:39:30,155 INFO L471 AbstractCegarLoop]: Abstraction has 13852 states and 23095 transitions. [2025-02-05 15:39:30,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.818181818181818) internal successors, (97), 10 states have internal predecessors, (97), 5 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2025-02-05 15:39:30,156 INFO L276 IsEmpty]: Start isEmpty. Operand 13852 states and 23095 transitions. [2025-02-05 15:39:30,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2025-02-05 15:39:30,163 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:39:30,163 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:39:30,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-05 15:39:30,163 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:39:30,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:39:30,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1896761864, now seen corresponding path program 1 times [2025-02-05 15:39:30,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:39:30,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868880451] [2025-02-05 15:39:30,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:30,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:39:30,180 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes. [2025-02-05 15:39:30,192 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements. [2025-02-05 15:39:30,193 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:30,193 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:30,381 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-02-05 15:39:30,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:39:30,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868880451] [2025-02-05 15:39:30,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868880451] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:39:30,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011940339] [2025-02-05 15:39:30,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:30,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:39:30,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:39:30,385 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 15:39:30,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-05 15:39:30,517 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes. [2025-02-05 15:39:30,661 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements. [2025-02-05 15:39:30,661 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:30,661 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:30,666 INFO L256 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:39:30,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:39:30,717 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-05 15:39:30,717 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:39:30,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011940339] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:39:30,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:39:30,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2025-02-05 15:39:30,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375040368] [2025-02-05 15:39:30,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:39:30,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:39:30,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:39:30,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:39:30,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:39:30,719 INFO L87 Difference]: Start difference. First operand 13852 states and 23095 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-02-05 15:39:31,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:39:31,415 INFO L93 Difference]: Finished difference Result 40271 states and 68841 transitions. [2025-02-05 15:39:31,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:39:31,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 150 [2025-02-05 15:39:31,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:39:31,577 INFO L225 Difference]: With dead ends: 40271 [2025-02-05 15:39:31,577 INFO L226 Difference]: Without dead ends: 26464 [2025-02-05 15:39:31,641 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:39:31,641 INFO L435 NwaCegarLoop]: 954 mSDtfsCounter, 867 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:39:31,641 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 1804 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:39:31,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26464 states. [2025-02-05 15:39:32,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26464 to 26459. [2025-02-05 15:39:32,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26459 states, 19668 states have (on average 1.5932479153955663) internal successors, (31336), 20434 states have internal predecessors, (31336), 5495 states have call successors, (5495), 1083 states have call predecessors, (5495), 1295 states have return successors, (8314), 5469 states have call predecessors, (8314), 5490 states have call successors, (8314) [2025-02-05 15:39:32,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26459 states to 26459 states and 45145 transitions. [2025-02-05 15:39:32,958 INFO L78 Accepts]: Start accepts. Automaton has 26459 states and 45145 transitions. Word has length 150 [2025-02-05 15:39:32,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:39:32,958 INFO L471 AbstractCegarLoop]: Abstraction has 26459 states and 45145 transitions. [2025-02-05 15:39:32,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-02-05 15:39:32,959 INFO L276 IsEmpty]: Start isEmpty. Operand 26459 states and 45145 transitions. [2025-02-05 15:39:32,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2025-02-05 15:39:32,969 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:39:32,969 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:39:32,980 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-05 15:39:33,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:39:33,170 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:39:33,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:39:33,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1330148934, now seen corresponding path program 1 times [2025-02-05 15:39:33,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:39:33,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046031130] [2025-02-05 15:39:33,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:33,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:39:33,190 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 151 statements into 1 equivalence classes. [2025-02-05 15:39:33,200 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 151 of 151 statements. [2025-02-05 15:39:33,200 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:33,201 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:33,311 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-02-05 15:39:33,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:39:33,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046031130] [2025-02-05 15:39:33,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046031130] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:39:33,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540508543] [2025-02-05 15:39:33,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:33,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:39:33,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:39:33,314 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 15:39:33,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-05 15:39:33,441 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 151 statements into 1 equivalence classes. [2025-02-05 15:39:33,580 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 151 of 151 statements. [2025-02-05 15:39:33,580 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:33,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:33,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 1779 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:39:33,589 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:39:33,626 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-05 15:39:33,626 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:39:33,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540508543] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:39:33,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:39:33,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2025-02-05 15:39:33,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420226955] [2025-02-05 15:39:33,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:39:33,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 15:39:33,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:39:33,628 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 15:39:33,628 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:39:33,628 INFO L87 Difference]: Start difference. First operand 26459 states and 45145 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-02-05 15:39:35,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:39:35,291 INFO L93 Difference]: Finished difference Result 78094 states and 138721 transitions. [2025-02-05 15:39:35,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 15:39:35,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 151 [2025-02-05 15:39:35,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:39:35,819 INFO L225 Difference]: With dead ends: 78094 [2025-02-05 15:39:35,819 INFO L226 Difference]: Without dead ends: 51672 [2025-02-05 15:39:36,174 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:39:36,175 INFO L435 NwaCegarLoop]: 965 mSDtfsCounter, 866 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 1817 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:39:36,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 1817 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:39:36,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51672 states. [2025-02-05 15:39:38,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51672 to 51666. [2025-02-05 15:39:38,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51666 states, 38380 states have (on average 1.5895518499218342) internal successors, (61007), 39882 states have internal predecessors, (61007), 10759 states have call successors, (10759), 2107 states have call predecessors, (10759), 2526 states have return successors, (19779), 10732 states have call predecessors, (19779), 10754 states have call successors, (19779) [2025-02-05 15:39:38,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51666 states to 51666 states and 91545 transitions. [2025-02-05 15:39:38,672 INFO L78 Accepts]: Start accepts. Automaton has 51666 states and 91545 transitions. Word has length 151 [2025-02-05 15:39:38,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:39:38,674 INFO L471 AbstractCegarLoop]: Abstraction has 51666 states and 91545 transitions. [2025-02-05 15:39:38,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-02-05 15:39:38,674 INFO L276 IsEmpty]: Start isEmpty. Operand 51666 states and 91545 transitions. [2025-02-05 15:39:38,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2025-02-05 15:39:38,706 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:39:38,706 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:39:38,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-05 15:39:38,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:39:38,907 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:39:38,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:39:38,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1121444180, now seen corresponding path program 1 times [2025-02-05 15:39:38,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:39:38,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928066933] [2025-02-05 15:39:38,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:38,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:39:38,932 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 221 statements into 1 equivalence classes. [2025-02-05 15:39:38,948 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 221 of 221 statements. [2025-02-05 15:39:38,949 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:38,949 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:39,094 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2025-02-05 15:39:39,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:39:39,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928066933] [2025-02-05 15:39:39,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928066933] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:39:39,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477232652] [2025-02-05 15:39:39,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:39,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:39:39,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:39:39,097 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 15:39:39,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-05 15:39:39,237 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 221 statements into 1 equivalence classes. [2025-02-05 15:39:39,399 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 221 of 221 statements. [2025-02-05 15:39:39,399 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:39,399 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:39,406 INFO L256 TraceCheckSpWp]: Trace formula consists of 2219 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-05 15:39:39,411 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:39:39,514 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2025-02-05 15:39:39,514 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:39:39,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477232652] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:39:39,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:39:39,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-02-05 15:39:39,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332325076] [2025-02-05 15:39:39,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:39:39,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 15:39:39,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:39:39,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 15:39:39,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:39:39,520 INFO L87 Difference]: Start difference. First operand 51666 states and 91545 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2025-02-05 15:39:42,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:39:42,247 INFO L93 Difference]: Finished difference Result 104343 states and 194456 transitions. [2025-02-05 15:39:42,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:39:42,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 221 [2025-02-05 15:39:42,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:39:42,689 INFO L225 Difference]: With dead ends: 104343 [2025-02-05 15:39:42,689 INFO L226 Difference]: Without dead ends: 52722 [2025-02-05 15:39:43,067 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:39:43,068 INFO L435 NwaCegarLoop]: 884 mSDtfsCounter, 856 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 2256 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-05 15:39:43,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 2256 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-05 15:39:43,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52722 states. [2025-02-05 15:39:45,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52722 to 52722. [2025-02-05 15:39:45,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52722 states, 39304 states have (on average 1.5924842255241196) internal successors, (62591), 40806 states have internal predecessors, (62591), 10759 states have call successors, (10759), 2239 states have call predecessors, (10759), 2658 states have return successors, (19878), 10732 states have call predecessors, (19878), 10754 states have call successors, (19878) [2025-02-05 15:39:46,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52722 states to 52722 states and 93228 transitions. [2025-02-05 15:39:46,179 INFO L78 Accepts]: Start accepts. Automaton has 52722 states and 93228 transitions. Word has length 221 [2025-02-05 15:39:46,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:39:46,180 INFO L471 AbstractCegarLoop]: Abstraction has 52722 states and 93228 transitions. [2025-02-05 15:39:46,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2025-02-05 15:39:46,180 INFO L276 IsEmpty]: Start isEmpty. Operand 52722 states and 93228 transitions. [2025-02-05 15:39:46,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2025-02-05 15:39:46,206 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:39:46,206 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:39:46,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-05 15:39:46,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2025-02-05 15:39:46,407 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:39:46,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:39:46,408 INFO L85 PathProgramCache]: Analyzing trace with hash 2112702590, now seen corresponding path program 1 times [2025-02-05 15:39:46,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:39:46,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737848311] [2025-02-05 15:39:46,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:46,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:39:46,427 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 222 statements into 1 equivalence classes. [2025-02-05 15:39:46,437 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 222 of 222 statements. [2025-02-05 15:39:46,438 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:46,438 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:46,761 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2025-02-05 15:39:46,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:39:46,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737848311] [2025-02-05 15:39:46,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737848311] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:39:46,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301203476] [2025-02-05 15:39:46,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:46,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:39:46,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:39:46,764 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 15:39:46,766 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-05 15:39:46,927 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 222 statements into 1 equivalence classes. [2025-02-05 15:39:47,116 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 222 of 222 statements. [2025-02-05 15:39:47,116 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:47,116 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:47,128 INFO L256 TraceCheckSpWp]: Trace formula consists of 2220 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-05 15:39:47,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:39:47,206 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2025-02-05 15:39:47,206 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:39:47,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301203476] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:39:47,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:39:47,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-02-05 15:39:47,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672578926] [2025-02-05 15:39:47,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:39:47,207 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 15:39:47,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:39:47,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 15:39:47,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:39:47,208 INFO L87 Difference]: Start difference. First operand 52722 states and 93228 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2025-02-05 15:39:49,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:39:49,913 INFO L93 Difference]: Finished difference Result 106455 states and 197525 transitions. [2025-02-05 15:39:49,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:39:49,914 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 222 [2025-02-05 15:39:49,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:39:50,407 INFO L225 Difference]: With dead ends: 106455 [2025-02-05 15:39:50,407 INFO L226 Difference]: Without dead ends: 53778 [2025-02-05 15:39:50,801 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:39:50,801 INFO L435 NwaCegarLoop]: 881 mSDtfsCounter, 850 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 2253 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-05 15:39:50,802 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [857 Valid, 2253 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-05 15:39:50,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53778 states. [2025-02-05 15:39:53,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53778 to 53778. [2025-02-05 15:39:53,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53778 states, 40228 states have (on average 1.5952818932087103) internal successors, (64175), 41730 states have internal predecessors, (64175), 10759 states have call successors, (10759), 2371 states have call predecessors, (10759), 2790 states have return successors, (19977), 10732 states have call predecessors, (19977), 10754 states have call successors, (19977) [2025-02-05 15:39:54,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53778 states to 53778 states and 94911 transitions. [2025-02-05 15:39:54,388 INFO L78 Accepts]: Start accepts. Automaton has 53778 states and 94911 transitions. Word has length 222 [2025-02-05 15:39:54,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:39:54,388 INFO L471 AbstractCegarLoop]: Abstraction has 53778 states and 94911 transitions. [2025-02-05 15:39:54,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2025-02-05 15:39:54,389 INFO L276 IsEmpty]: Start isEmpty. Operand 53778 states and 94911 transitions. [2025-02-05 15:39:54,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2025-02-05 15:39:54,407 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:39:54,407 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:39:54,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-05 15:39:54,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:39:54,608 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:39:54,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:39:54,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1306538199, now seen corresponding path program 1 times [2025-02-05 15:39:54,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:39:54,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482742504] [2025-02-05 15:39:54,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:54,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:39:54,632 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 223 statements into 1 equivalence classes. [2025-02-05 15:39:54,643 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 223 of 223 statements. [2025-02-05 15:39:54,643 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:54,643 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:54,805 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2025-02-05 15:39:54,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:39:54,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482742504] [2025-02-05 15:39:54,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482742504] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:39:54,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [899640082] [2025-02-05 15:39:54,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:39:54,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:39:54,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:39:54,808 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 15:39:54,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-05 15:39:54,956 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 223 statements into 1 equivalence classes. [2025-02-05 15:39:55,149 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 223 of 223 statements. [2025-02-05 15:39:55,149 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:39:55,149 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:39:55,156 INFO L256 TraceCheckSpWp]: Trace formula consists of 2221 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-05 15:39:55,161 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:39:55,244 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2025-02-05 15:39:55,244 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:39:55,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [899640082] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:39:55,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:39:55,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-02-05 15:39:55,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336783024] [2025-02-05 15:39:55,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:39:55,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 15:39:55,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:39:55,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 15:39:55,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:39:55,246 INFO L87 Difference]: Start difference. First operand 53778 states and 94911 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2025-02-05 15:39:57,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:39:57,722 INFO L93 Difference]: Finished difference Result 108567 states and 200594 transitions. [2025-02-05 15:39:57,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 15:39:57,723 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (29), 2 states have call predecessors, (29), 3 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 223 [2025-02-05 15:39:57,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:39:58,114 INFO L225 Difference]: With dead ends: 108567 [2025-02-05 15:39:58,114 INFO L226 Difference]: Without dead ends: 54834 [2025-02-05 15:39:58,523 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:39:58,528 INFO L435 NwaCegarLoop]: 878 mSDtfsCounter, 842 mSDsluCounter, 1372 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 852 SdHoareTripleChecker+Valid, 2250 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-05 15:39:58,528 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [852 Valid, 2250 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-05 15:39:58,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54834 states.