./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec1_product21.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_spec1_product21.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 b57471ff7da280977e3c808cc9c84e84708264492bfd0c5193cf422adb691b70 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 15:33:34,897 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 15:33:34,941 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 15:33:34,945 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 15:33:34,945 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 15:33:34,959 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 15:33:34,959 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 15:33:34,959 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 15:33:34,960 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 15:33:34,960 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 15:33:34,960 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 15:33:34,960 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 15:33:34,960 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 15:33:34,960 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 15:33:34,960 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 15:33:34,960 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 15:33:34,960 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 15:33:34,961 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 15:33:34,961 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 15:33:34,961 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 15:33:34,961 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 15:33:34,961 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 15:33:34,961 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 15:33:34,961 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 15:33:34,961 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 15:33:34,961 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 15:33:34,961 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 15:33:34,961 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 15:33:34,961 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 15:33:34,962 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 15:33:34,962 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 15:33:34,962 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 15:33:34,962 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 15:33:34,965 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 15:33:34,965 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 15:33:34,965 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 15:33:34,966 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 15:33:34,966 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 15:33:34,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 15:33:34,966 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 15:33:34,966 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 15:33:34,966 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 15:33:34,966 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 15:33:34,966 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 -> b57471ff7da280977e3c808cc9c84e84708264492bfd0c5193cf422adb691b70 [2025-02-05 15:33:35,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 15:33:35,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 15:33:35,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 15:33:35,226 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 15:33:35,226 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 15:33:35,227 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec1_product21.cil.c [2025-02-05 15:33:36,388 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b11a50d22/f57afaa1c7fe4b4b95a35aa8df70e305/FLAG5c5366007 [2025-02-05 15:33:36,705 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 15:33:36,707 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec1_product21.cil.c [2025-02-05 15:33:36,726 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b11a50d22/f57afaa1c7fe4b4b95a35aa8df70e305/FLAG5c5366007 [2025-02-05 15:33:36,944 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b11a50d22/f57afaa1c7fe4b4b95a35aa8df70e305 [2025-02-05 15:33:36,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 15:33:36,951 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 15:33:36,952 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 15:33:36,952 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 15:33:36,958 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 15:33:36,959 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 03:33:36" (1/1) ... [2025-02-05 15:33:36,961 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5056183a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:33:36, skipping insertion in model container [2025-02-05 15:33:36,961 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 03:33:36" (1/1) ... [2025-02-05 15:33:37,011 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 15:33:37,338 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_spec1_product21.cil.c[66510,66523] [2025-02-05 15:33:37,349 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 15:33:37,365 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 15:33:37,371 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [48] [2025-02-05 15:33:37,372 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1575] [2025-02-05 15:33:37,373 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1934] [2025-02-05 15:33:37,373 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2300] [2025-02-05 15:33:37,373 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2391] [2025-02-05 15:33:37,373 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2404] [2025-02-05 15:33:37,373 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2439] [2025-02-05 15:33:37,373 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3105] [2025-02-05 15:33:37,373 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3114] [2025-02-05 15:33:37,373 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [3232] [2025-02-05 15:33:37,440 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_spec1_product21.cil.c[66510,66523] [2025-02-05 15:33:37,444 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 15:33:37,471 INFO L204 MainTranslator]: Completed translation [2025-02-05 15:33:37,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:33:37 WrapperNode [2025-02-05 15:33:37,472 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 15:33:37,473 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 15:33:37,473 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 15:33:37,473 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 15:33:37,478 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:33:37" (1/1) ... [2025-02-05 15:33:37,499 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:33:37" (1/1) ... [2025-02-05 15:33:37,531 INFO L138 Inliner]: procedures = 92, calls = 340, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 846 [2025-02-05 15:33:37,532 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 15:33:37,535 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 15:33:37,535 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 15:33:37,535 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 15:33:37,541 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:33:37" (1/1) ... [2025-02-05 15:33:37,541 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:33:37" (1/1) ... [2025-02-05 15:33:37,546 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:33:37" (1/1) ... [2025-02-05 15:33:37,581 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 15:33:37,586 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:33:37" (1/1) ... [2025-02-05 15:33:37,586 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:33:37" (1/1) ... [2025-02-05 15:33:37,602 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:33:37" (1/1) ... [2025-02-05 15:33:37,608 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:33:37" (1/1) ... [2025-02-05 15:33:37,610 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:33:37" (1/1) ... [2025-02-05 15:33:37,615 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:33:37" (1/1) ... [2025-02-05 15:33:37,623 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 15:33:37,626 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 15:33:37,626 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 15:33:37,626 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 15:33:37,626 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:33:37" (1/1) ... [2025-02-05 15:33:37,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 15:33:37,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:33:37,648 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 15:33:37,657 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 15:33:37,672 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2025-02-05 15:33:37,672 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2025-02-05 15:33:37,672 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 15:33:37,672 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2025-02-05 15:33:37,672 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2025-02-05 15:33:37,672 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2025-02-05 15:33:37,672 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2025-02-05 15:33:37,672 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2025-02-05 15:33:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2025-02-05 15:33:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2025-02-05 15:33:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2025-02-05 15:33:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2025-02-05 15:33:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2025-02-05 15:33:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-02-05 15:33:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-02-05 15:33:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-02-05 15:33:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-02-05 15:33:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2025-02-05 15:33:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2025-02-05 15:33:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2025-02-05 15:33:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2025-02-05 15:33:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2025-02-05 15:33:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2025-02-05 15:33:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2025-02-05 15:33:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2025-02-05 15:33:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2025-02-05 15:33:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2025-02-05 15:33:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2025-02-05 15:33:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2025-02-05 15:33:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2025-02-05 15:33:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2025-02-05 15:33:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2025-02-05 15:33:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2025-02-05 15:33:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2025-02-05 15:33:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2025-02-05 15:33:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2025-02-05 15:33:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2025-02-05 15:33:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2025-02-05 15:33:37,673 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2025-02-05 15:33:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 15:33:37,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-05 15:33:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-05 15:33:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-05 15:33:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-05 15:33:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-05 15:33:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-02-05 15:33:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-02-05 15:33:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-02-05 15:33:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-02-05 15:33:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-02-05 15:33:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-02-05 15:33:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-02-05 15:33:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-02-05 15:33:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-02-05 15:33:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-02-05 15:33:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-02-05 15:33:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-02-05 15:33:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-02-05 15:33:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-02-05 15:33:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2025-02-05 15:33:37,674 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2025-02-05 15:33:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2025-02-05 15:33:37,674 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2025-02-05 15:33:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2025-02-05 15:33:37,674 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2025-02-05 15:33:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2025-02-05 15:33:37,674 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2025-02-05 15:33:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2025-02-05 15:33:37,674 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2025-02-05 15:33:37,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 15:33:37,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 15:33:37,676 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2025-02-05 15:33:37,677 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2025-02-05 15:33:37,809 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 15:33:37,811 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 15:33:37,863 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3229: #res := ~retValue_acc~27; [2025-02-05 15:33:37,879 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3151: #res := ~retValue_acc~25; [2025-02-05 15:33:37,881 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L138: #res := ~retValue_acc~0; [2025-02-05 15:33:37,886 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L291: #res := ~retValue_acc~1; [2025-02-05 15:33:38,047 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L901-1: isAnyLiftButtonPressed_#res#1 := isAnyLiftButtonPressed_~retValue_acc~10#1; [2025-02-05 15:33:38,048 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L867: #res#1 := ~retValue_acc~9#1; [2025-02-05 15:33:38,095 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L999: #res := ~retValue_acc~13; [2025-02-05 15:33:38,105 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3190: #res := ~retValue_acc~26; [2025-02-05 15:33:38,121 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L334: #res := ~retValue_acc~3; [2025-02-05 15:33:38,188 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L463-1: anyStopRequested_#res#1 := anyStopRequested_~retValue_acc~6#1; [2025-02-05 15:33:38,188 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L476-1: isIdle_#res#1 := isIdle_~retValue_acc~7#1; [2025-02-05 15:33:38,312 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L985-1: stopRequestedAtCurrentFloor_#res#1 := stopRequestedAtCurrentFloor_~retValue_acc~12#1; [2025-02-05 15:33:38,312 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L957-1: stopRequestedAtCurrentFloor__wrappee__weight_#res#1 := stopRequestedAtCurrentFloor__wrappee__weight_~retValue_acc~11#1; [2025-02-05 15:33:38,358 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2791: #res := ~retValue_acc~23; [2025-02-05 15:33:38,451 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L828: #res := ~retValue_acc~8; [2025-02-05 15:33:38,510 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1931-1: main_#res#1 := main_~retValue_acc~16#1; [2025-02-05 15:33:38,510 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2436-1: valid_product_#res#1 := valid_product_~retValue_acc~21#1; [2025-02-05 15:33:38,518 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2550: #res := ~retValue_acc~22; [2025-02-05 15:33:38,520 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L300: #res := ~retValue_acc~2; [2025-02-05 15:33:38,523 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3102: #res := ~retValue_acc~24; [2025-02-05 15:33:38,631 INFO L? ?]: Removed 448 outVars from TransFormulas that were not future-live. [2025-02-05 15:33:38,631 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 15:33:38,654 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 15:33:38,657 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 15:33:38,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 03:33:38 BoogieIcfgContainer [2025-02-05 15:33:38,658 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 15:33:38,659 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 15:33:38,659 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 15:33:38,662 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 15:33:38,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 03:33:36" (1/3) ... [2025-02-05 15:33:38,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74044c41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 03:33:38, skipping insertion in model container [2025-02-05 15:33:38,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 03:33:37" (2/3) ... [2025-02-05 15:33:38,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74044c41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 03:33:38, skipping insertion in model container [2025-02-05 15:33:38,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 03:33:38" (3/3) ... [2025-02-05 15:33:38,663 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product21.cil.c [2025-02-05 15:33:38,672 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 15:33:38,673 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec1_product21.cil.c that has 26 procedures, 570 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-05 15:33:38,745 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 15:33:38,752 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;@cade66d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 15:33:38,752 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 15:33:38,755 INFO L276 IsEmpty]: Start isEmpty. Operand has 570 states, 444 states have (on average 1.6891891891891893) internal successors, (750), 466 states have internal predecessors, (750), 98 states have call successors, (98), 25 states have call predecessors, (98), 25 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) [2025-02-05 15:33:38,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2025-02-05 15:33:38,772 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:33:38,773 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:33:38,773 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:33:38,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:33:38,776 INFO L85 PathProgramCache]: Analyzing trace with hash -973644042, now seen corresponding path program 1 times [2025-02-05 15:33:38,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:33:38,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136635835] [2025-02-05 15:33:38,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:38,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:33:38,859 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-02-05 15:33:38,914 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-02-05 15:33:38,915 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:38,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:39,329 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-05 15:33:39,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:33:39,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136635835] [2025-02-05 15:33:39,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136635835] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:33:39,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495278232] [2025-02-05 15:33:39,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:39,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:39,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:33:39,339 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 15:33:39,350 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 15:33:39,524 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 129 statements into 1 equivalence classes. [2025-02-05 15:33:39,708 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 129 of 129 statements. [2025-02-05 15:33:39,709 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:39,709 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:39,715 INFO L256 TraceCheckSpWp]: Trace formula consists of 1884 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:33:39,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:33:39,774 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-02-05 15:33:39,776 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:33:39,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495278232] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:33:39,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:33:39,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-05 15:33:39,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061399112] [2025-02-05 15:33:39,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:33:39,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:33:39,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:33:39,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:33:39,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:33:39,799 INFO L87 Difference]: Start difference. First operand has 570 states, 444 states have (on average 1.6891891891891893) internal successors, (750), 466 states have internal predecessors, (750), 98 states have call successors, (98), 25 states have call predecessors, (98), 25 states have return successors, (98), 92 states have call predecessors, (98), 98 states have call successors, (98) Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2025-02-05 15:33:39,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:33:39,897 INFO L93 Difference]: Finished difference Result 1129 states and 1882 transitions. [2025-02-05 15:33:39,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 15:33:39,899 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 129 [2025-02-05 15:33:39,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:33:39,909 INFO L225 Difference]: With dead ends: 1129 [2025-02-05 15:33:39,909 INFO L226 Difference]: Without dead ends: 561 [2025-02-05 15:33:39,914 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:33:39,916 INFO L435 NwaCegarLoop]: 926 mSDtfsCounter, 5 mSDsluCounter, 1846 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2772 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:33:39,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2772 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:33:39,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2025-02-05 15:33:39,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2025-02-05 15:33:39,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 438 states have (on average 1.682648401826484) internal successors, (737), 457 states have internal predecessors, (737), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) [2025-02-05 15:33:39,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 928 transitions. [2025-02-05 15:33:39,974 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 928 transitions. Word has length 129 [2025-02-05 15:33:39,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:33:39,975 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 928 transitions. [2025-02-05 15:33:39,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2025-02-05 15:33:39,975 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 928 transitions. [2025-02-05 15:33:39,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2025-02-05 15:33:39,985 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:33:39,986 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:33:39,994 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-05 15:33:40,186 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,SelfDestructingSolverStorable0 [2025-02-05 15:33:40,188 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:33:40,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:33:40,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1147491916, now seen corresponding path program 1 times [2025-02-05 15:33:40,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:33:40,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188436241] [2025-02-05 15:33:40,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:40,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:33:40,218 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-02-05 15:33:40,236 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-02-05 15:33:40,236 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:40,236 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:40,401 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-05 15:33:40,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:33:40,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188436241] [2025-02-05 15:33:40,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188436241] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:33:40,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699528688] [2025-02-05 15:33:40,401 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:40,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:40,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:33:40,406 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 15:33:40,408 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 15:33:40,533 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-02-05 15:33:40,710 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-02-05 15:33:40,710 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:40,710 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:40,717 INFO L256 TraceCheckSpWp]: Trace formula consists of 1886 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:33:40,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:33:40,750 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-02-05 15:33:40,753 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:33:40,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699528688] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:33:40,754 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:33:40,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-05 15:33:40,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803149102] [2025-02-05 15:33:40,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:33:40,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:33:40,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:33:40,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:33:40,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:33:40,758 INFO L87 Difference]: Start difference. First operand 561 states and 928 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2025-02-05 15:33:40,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:33:40,824 INFO L93 Difference]: Finished difference Result 1113 states and 1848 transitions. [2025-02-05 15:33:40,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 15:33:40,825 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 131 [2025-02-05 15:33:40,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:33:40,829 INFO L225 Difference]: With dead ends: 1113 [2025-02-05 15:33:40,829 INFO L226 Difference]: Without dead ends: 561 [2025-02-05 15:33:40,830 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:33:40,831 INFO L435 NwaCegarLoop]: 917 mSDtfsCounter, 4 mSDsluCounter, 1828 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2745 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:33:40,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2745 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:33:40,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2025-02-05 15:33:40,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2025-02-05 15:33:40,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 438 states have (on average 1.6803652968036529) internal successors, (736), 457 states have internal predecessors, (736), 98 states have call successors, (98), 25 states have call predecessors, (98), 24 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) [2025-02-05 15:33:40,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 927 transitions. [2025-02-05 15:33:40,853 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 927 transitions. Word has length 131 [2025-02-05 15:33:40,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:33:40,853 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 927 transitions. [2025-02-05 15:33:40,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2025-02-05 15:33:40,854 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 927 transitions. [2025-02-05 15:33:40,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2025-02-05 15:33:40,857 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:33:40,857 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:33:40,865 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 15:33:41,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:41,062 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:33:41,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:33:41,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1140015082, now seen corresponding path program 1 times [2025-02-05 15:33:41,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:33:41,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347322021] [2025-02-05 15:33:41,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:41,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:33:41,105 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-02-05 15:33:41,121 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-02-05 15:33:41,121 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:41,121 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:41,246 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-05 15:33:41,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:33:41,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347322021] [2025-02-05 15:33:41,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347322021] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:33:41,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475306607] [2025-02-05 15:33:41,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:41,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:41,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:33:41,249 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 15:33:41,250 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 15:33:41,373 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-02-05 15:33:41,547 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-02-05 15:33:41,547 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:41,547 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:41,553 INFO L256 TraceCheckSpWp]: Trace formula consists of 1888 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:33:41,557 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:33:41,577 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-02-05 15:33:41,578 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:33:41,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475306607] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:33:41,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:33:41,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-05 15:33:41,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556864810] [2025-02-05 15:33:41,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:33:41,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:33:41,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:33:41,579 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:33:41,579 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:33:41,579 INFO L87 Difference]: Start difference. First operand 561 states and 927 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2025-02-05 15:33:41,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:33:41,643 INFO L93 Difference]: Finished difference Result 1120 states and 1855 transitions. [2025-02-05 15:33:41,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 15:33:41,644 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 133 [2025-02-05 15:33:41,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:33:41,648 INFO L225 Difference]: With dead ends: 1120 [2025-02-05 15:33:41,648 INFO L226 Difference]: Without dead ends: 570 [2025-02-05 15:33:41,650 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:33:41,650 INFO L435 NwaCegarLoop]: 916 mSDtfsCounter, 13 mSDsluCounter, 1826 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2742 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:33:41,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2742 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:33:41,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2025-02-05 15:33:41,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 570. [2025-02-05 15:33:41,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 446 states have (on average 1.6771300448430493) internal successors, (748), 465 states have internal predecessors, (748), 98 states have call successors, (98), 26 states have call predecessors, (98), 25 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) [2025-02-05 15:33:41,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 939 transitions. [2025-02-05 15:33:41,676 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 939 transitions. Word has length 133 [2025-02-05 15:33:41,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:33:41,676 INFO L471 AbstractCegarLoop]: Abstraction has 570 states and 939 transitions. [2025-02-05 15:33:41,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2025-02-05 15:33:41,677 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 939 transitions. [2025-02-05 15:33:41,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-02-05 15:33:41,680 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:33:41,680 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:33:41,689 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-05 15:33:41,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:41,882 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:33:41,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:33:41,882 INFO L85 PathProgramCache]: Analyzing trace with hash -2055754690, now seen corresponding path program 1 times [2025-02-05 15:33:41,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:33:41,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916322539] [2025-02-05 15:33:41,882 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:41,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:33:41,902 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-02-05 15:33:41,911 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-02-05 15:33:41,911 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:41,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:42,038 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-05 15:33:42,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:33:42,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916322539] [2025-02-05 15:33:42,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916322539] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:33:42,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378889423] [2025-02-05 15:33:42,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:42,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:42,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:33:42,040 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 15:33:42,044 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 15:33:42,176 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-02-05 15:33:42,321 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-02-05 15:33:42,321 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:42,321 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:42,327 INFO L256 TraceCheckSpWp]: Trace formula consists of 1889 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:33:42,330 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:33:42,354 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-02-05 15:33:42,358 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:33:42,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378889423] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:33:42,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:33:42,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-05 15:33:42,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373870060] [2025-02-05 15:33:42,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:33:42,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:33:42,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:33:42,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:33:42,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:33:42,359 INFO L87 Difference]: Start difference. First operand 570 states and 939 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2025-02-05 15:33:42,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:33:42,417 INFO L93 Difference]: Finished difference Result 1122 states and 1856 transitions. [2025-02-05 15:33:42,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 15:33:42,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 134 [2025-02-05 15:33:42,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:33:42,421 INFO L225 Difference]: With dead ends: 1122 [2025-02-05 15:33:42,421 INFO L226 Difference]: Without dead ends: 570 [2025-02-05 15:33:42,424 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:33:42,424 INFO L435 NwaCegarLoop]: 916 mSDtfsCounter, 11 mSDsluCounter, 1826 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2742 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:33:42,425 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2742 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:33:42,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2025-02-05 15:33:42,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 570. [2025-02-05 15:33:42,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 446 states have (on average 1.6748878923766817) internal successors, (747), 465 states have internal predecessors, (747), 98 states have call successors, (98), 26 states have call predecessors, (98), 25 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) [2025-02-05 15:33:42,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 938 transitions. [2025-02-05 15:33:42,450 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 938 transitions. Word has length 134 [2025-02-05 15:33:42,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:33:42,451 INFO L471 AbstractCegarLoop]: Abstraction has 570 states and 938 transitions. [2025-02-05 15:33:42,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2025-02-05 15:33:42,451 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 938 transitions. [2025-02-05 15:33:42,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-02-05 15:33:42,455 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:33:42,455 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:33:42,464 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 15:33:42,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:42,657 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:33:42,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:33:42,657 INFO L85 PathProgramCache]: Analyzing trace with hash 72637593, now seen corresponding path program 1 times [2025-02-05 15:33:42,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:33:42,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780642292] [2025-02-05 15:33:42,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:42,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:33:42,674 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-02-05 15:33:42,681 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-02-05 15:33:42,681 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:42,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:42,773 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-05 15:33:42,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:33:42,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780642292] [2025-02-05 15:33:42,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [780642292] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:33:42,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040600737] [2025-02-05 15:33:42,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:42,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:42,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:33:42,776 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 15:33:42,777 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 15:33:42,883 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-02-05 15:33:43,023 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-02-05 15:33:43,024 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:43,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:43,030 INFO L256 TraceCheckSpWp]: Trace formula consists of 1890 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:33:43,033 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:33:43,055 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-02-05 15:33:43,059 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:33:43,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040600737] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:33:43,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:33:43,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-05 15:33:43,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903903848] [2025-02-05 15:33:43,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:33:43,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:33:43,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:33:43,062 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:33:43,062 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:33:43,062 INFO L87 Difference]: Start difference. First operand 570 states and 938 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2025-02-05 15:33:43,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:33:43,113 INFO L93 Difference]: Finished difference Result 1122 states and 1855 transitions. [2025-02-05 15:33:43,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 15:33:43,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 135 [2025-02-05 15:33:43,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:33:43,118 INFO L225 Difference]: With dead ends: 1122 [2025-02-05 15:33:43,118 INFO L226 Difference]: Without dead ends: 570 [2025-02-05 15:33:43,120 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:33:43,122 INFO L435 NwaCegarLoop]: 916 mSDtfsCounter, 10 mSDsluCounter, 1826 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2742 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:33:43,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2742 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:33:43,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2025-02-05 15:33:43,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 570. [2025-02-05 15:33:43,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 446 states have (on average 1.6726457399103138) internal successors, (746), 465 states have internal predecessors, (746), 98 states have call successors, (98), 26 states have call predecessors, (98), 25 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) [2025-02-05 15:33:43,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 937 transitions. [2025-02-05 15:33:43,147 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 937 transitions. Word has length 135 [2025-02-05 15:33:43,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:33:43,147 INFO L471 AbstractCegarLoop]: Abstraction has 570 states and 937 transitions. [2025-02-05 15:33:43,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2025-02-05 15:33:43,147 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 937 transitions. [2025-02-05 15:33:43,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2025-02-05 15:33:43,150 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:33:43,150 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:33:43,158 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 15:33:43,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:43,354 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:33:43,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:33:43,355 INFO L85 PathProgramCache]: Analyzing trace with hash 2079837985, now seen corresponding path program 1 times [2025-02-05 15:33:43,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:33:43,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822921504] [2025-02-05 15:33:43,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:43,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:33:43,372 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-02-05 15:33:43,377 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-02-05 15:33:43,377 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:43,378 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:43,524 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-05 15:33:43,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:33:43,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822921504] [2025-02-05 15:33:43,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822921504] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:33:43,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852901002] [2025-02-05 15:33:43,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:43,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:43,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:33:43,526 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 15:33:43,528 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 15:33:43,640 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-02-05 15:33:43,772 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-02-05 15:33:43,772 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:43,772 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:43,777 INFO L256 TraceCheckSpWp]: Trace formula consists of 1891 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:33:43,779 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:33:43,804 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-05 15:33:43,807 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:33:43,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852901002] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:33:43,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:33:43,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2025-02-05 15:33:43,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702932177] [2025-02-05 15:33:43,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:33:43,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:33:43,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:33:43,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:33:43,811 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:33:43,811 INFO L87 Difference]: Start difference. First operand 570 states and 937 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-02-05 15:33:43,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:33:43,914 INFO L93 Difference]: Finished difference Result 1148 states and 1902 transitions. [2025-02-05 15:33:43,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 15:33:43,914 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 136 [2025-02-05 15:33:43,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:33:43,917 INFO L225 Difference]: With dead ends: 1148 [2025-02-05 15:33:43,917 INFO L226 Difference]: Without dead ends: 585 [2025-02-05 15:33:43,919 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:33:43,920 INFO L435 NwaCegarLoop]: 891 mSDtfsCounter, 76 mSDsluCounter, 1742 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 2633 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:33:43,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 2633 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:33:43,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2025-02-05 15:33:43,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 570. [2025-02-05 15:33:43,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 446 states have (on average 1.6614349775784754) internal successors, (741), 465 states have internal predecessors, (741), 98 states have call successors, (98), 26 states have call predecessors, (98), 25 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) [2025-02-05 15:33:43,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 932 transitions. [2025-02-05 15:33:43,943 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 932 transitions. Word has length 136 [2025-02-05 15:33:43,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:33:43,944 INFO L471 AbstractCegarLoop]: Abstraction has 570 states and 932 transitions. [2025-02-05 15:33:43,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-02-05 15:33:43,944 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 932 transitions. [2025-02-05 15:33:43,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2025-02-05 15:33:43,946 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:33:43,946 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:33:43,958 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 15:33:44,147 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,SelfDestructingSolverStorable5 [2025-02-05 15:33:44,147 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:33:44,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:33:44,149 INFO L85 PathProgramCache]: Analyzing trace with hash -715077477, now seen corresponding path program 1 times [2025-02-05 15:33:44,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:33:44,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016400744] [2025-02-05 15:33:44,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:44,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:33:44,167 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 138 statements into 1 equivalence classes. [2025-02-05 15:33:44,172 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 138 of 138 statements. [2025-02-05 15:33:44,172 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:44,172 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:44,305 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-05 15:33:44,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:33:44,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016400744] [2025-02-05 15:33:44,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016400744] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:33:44,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315161350] [2025-02-05 15:33:44,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:44,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:44,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:33:44,307 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 15:33:44,312 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 15:33:44,514 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 138 statements into 1 equivalence classes. [2025-02-05 15:33:44,654 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 138 of 138 statements. [2025-02-05 15:33:44,654 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:44,654 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:44,660 INFO L256 TraceCheckSpWp]: Trace formula consists of 1893 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:33:44,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:33:44,690 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-05 15:33:44,690 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:33:44,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315161350] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:33:44,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:33:44,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2025-02-05 15:33:44,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592403491] [2025-02-05 15:33:44,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:33:44,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:33:44,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:33:44,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:33:44,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:33:44,694 INFO L87 Difference]: Start difference. First operand 570 states and 932 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-02-05 15:33:44,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:33:44,789 INFO L93 Difference]: Finished difference Result 1148 states and 1892 transitions. [2025-02-05 15:33:44,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 15:33:44,789 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 138 [2025-02-05 15:33:44,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:33:44,792 INFO L225 Difference]: With dead ends: 1148 [2025-02-05 15:33:44,793 INFO L226 Difference]: Without dead ends: 585 [2025-02-05 15:33:44,794 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:33:44,795 INFO L435 NwaCegarLoop]: 891 mSDtfsCounter, 75 mSDsluCounter, 1742 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 2633 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:33:44,796 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 2633 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:33:44,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2025-02-05 15:33:44,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 570. [2025-02-05 15:33:44,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 446 states have (on average 1.6502242152466369) internal successors, (736), 465 states have internal predecessors, (736), 98 states have call successors, (98), 26 states have call predecessors, (98), 25 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) [2025-02-05 15:33:44,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 927 transitions. [2025-02-05 15:33:44,813 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 927 transitions. Word has length 138 [2025-02-05 15:33:44,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:33:44,814 INFO L471 AbstractCegarLoop]: Abstraction has 570 states and 927 transitions. [2025-02-05 15:33:44,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 4 states have internal predecessors, (104), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-02-05 15:33:44,815 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 927 transitions. [2025-02-05 15:33:44,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-02-05 15:33:44,817 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:33:44,817 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:33:44,825 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 15:33:45,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:45,022 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:33:45,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:33:45,022 INFO L85 PathProgramCache]: Analyzing trace with hash -986692735, now seen corresponding path program 1 times [2025-02-05 15:33:45,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:33:45,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477183679] [2025-02-05 15:33:45,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:45,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:33:45,036 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-02-05 15:33:45,041 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-02-05 15:33:45,041 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:45,041 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:45,151 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-05 15:33:45,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:33:45,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477183679] [2025-02-05 15:33:45,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477183679] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:33:45,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623124677] [2025-02-05 15:33:45,152 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:45,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:45,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:33:45,157 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 15:33:45,164 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 15:33:45,282 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-02-05 15:33:45,447 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-02-05 15:33:45,447 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:45,447 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:45,453 INFO L256 TraceCheckSpWp]: Trace formula consists of 1895 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:33:45,456 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:33:45,489 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-05 15:33:45,490 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:33:45,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623124677] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:33:45,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:33:45,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2025-02-05 15:33:45,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155022404] [2025-02-05 15:33:45,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:33:45,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:33:45,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:33:45,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:33:45,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:33:45,492 INFO L87 Difference]: Start difference. First operand 570 states and 927 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-02-05 15:33:45,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:33:45,642 INFO L93 Difference]: Finished difference Result 1199 states and 1965 transitions. [2025-02-05 15:33:45,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 15:33:45,643 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 140 [2025-02-05 15:33:45,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:33:45,646 INFO L225 Difference]: With dead ends: 1199 [2025-02-05 15:33:45,646 INFO L226 Difference]: Without dead ends: 651 [2025-02-05 15:33:45,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 139 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 15:33:45,648 INFO L435 NwaCegarLoop]: 924 mSDtfsCounter, 130 mSDsluCounter, 1740 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 2664 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:33:45,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 2664 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:33:45,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2025-02-05 15:33:45,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 621. [2025-02-05 15:33:45,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 496 states have (on average 1.655241935483871) internal successors, (821), 515 states have internal predecessors, (821), 98 states have call successors, (98), 27 states have call predecessors, (98), 26 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) [2025-02-05 15:33:45,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 1012 transitions. [2025-02-05 15:33:45,666 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 1012 transitions. Word has length 140 [2025-02-05 15:33:45,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:33:45,666 INFO L471 AbstractCegarLoop]: Abstraction has 621 states and 1012 transitions. [2025-02-05 15:33:45,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-02-05 15:33:45,667 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 1012 transitions. [2025-02-05 15:33:45,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-02-05 15:33:45,670 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:33:45,670 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:33:45,680 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-02-05 15:33:45,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:45,874 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:33:45,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:33:45,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1435720768, now seen corresponding path program 1 times [2025-02-05 15:33:45,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:33:45,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397118104] [2025-02-05 15:33:45,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:45,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:33:45,891 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-02-05 15:33:45,896 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-02-05 15:33:45,896 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:45,896 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:46,019 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-05 15:33:46,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:33:46,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397118104] [2025-02-05 15:33:46,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397118104] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:33:46,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812635046] [2025-02-05 15:33:46,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:46,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:46,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:33:46,026 INFO L229 MonitoredProcess]: Starting monitored process 10 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 15:33:46,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-05 15:33:46,138 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-02-05 15:33:46,276 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-02-05 15:33:46,276 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:46,276 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:46,281 INFO L256 TraceCheckSpWp]: Trace formula consists of 1896 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:33:46,286 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:33:46,317 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-05 15:33:46,320 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:33:46,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812635046] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:33:46,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:33:46,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2025-02-05 15:33:46,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383986772] [2025-02-05 15:33:46,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:33:46,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:33:46,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:33:46,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:33:46,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:33:46,321 INFO L87 Difference]: Start difference. First operand 621 states and 1012 transitions. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-02-05 15:33:46,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:33:46,458 INFO L93 Difference]: Finished difference Result 1214 states and 1989 transitions. [2025-02-05 15:33:46,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 15:33:46,458 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 141 [2025-02-05 15:33:46,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:33:46,462 INFO L225 Difference]: With dead ends: 1214 [2025-02-05 15:33:46,462 INFO L226 Difference]: Without dead ends: 651 [2025-02-05 15:33:46,464 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 140 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 15:33:46,465 INFO L435 NwaCegarLoop]: 923 mSDtfsCounter, 124 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 2637 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:33:46,465 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 2637 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:33:46,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2025-02-05 15:33:46,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 621. [2025-02-05 15:33:46,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 496 states have (on average 1.6451612903225807) internal successors, (816), 515 states have internal predecessors, (816), 98 states have call successors, (98), 27 states have call predecessors, (98), 26 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) [2025-02-05 15:33:46,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 1007 transitions. [2025-02-05 15:33:46,505 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 1007 transitions. Word has length 141 [2025-02-05 15:33:46,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:33:46,506 INFO L471 AbstractCegarLoop]: Abstraction has 621 states and 1007 transitions. [2025-02-05 15:33:46,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-02-05 15:33:46,506 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 1007 transitions. [2025-02-05 15:33:46,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-02-05 15:33:46,509 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:33:46,509 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:33:46,517 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-02-05 15:33:46,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:46,710 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:33:46,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:33:46,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1746985788, now seen corresponding path program 1 times [2025-02-05 15:33:46,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:33:46,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388435302] [2025-02-05 15:33:46,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:46,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:33:46,723 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-02-05 15:33:46,728 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-02-05 15:33:46,728 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:46,728 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:46,821 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-05 15:33:46,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:33:46,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388435302] [2025-02-05 15:33:46,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388435302] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:33:46,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1322944575] [2025-02-05 15:33:46,821 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:46,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:46,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:33:46,827 INFO L229 MonitoredProcess]: Starting monitored process 11 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 15:33:46,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-05 15:33:46,942 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-02-05 15:33:47,082 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-02-05 15:33:47,082 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:47,083 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:47,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 1892 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-05 15:33:47,091 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:33:47,148 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-02-05 15:33:47,148 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:33:47,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1322944575] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:33:47,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:33:47,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-02-05 15:33:47,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89820646] [2025-02-05 15:33:47,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:33:47,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-05 15:33:47,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:33:47,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-05 15:33:47,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-02-05 15:33:47,150 INFO L87 Difference]: Start difference. First operand 621 states and 1007 transitions. Second operand has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2025-02-05 15:33:47,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:33:47,256 INFO L93 Difference]: Finished difference Result 1207 states and 1969 transitions. [2025-02-05 15:33:47,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-05 15:33:47,256 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 141 [2025-02-05 15:33:47,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:33:47,259 INFO L225 Difference]: With dead ends: 1207 [2025-02-05 15:33:47,259 INFO L226 Difference]: Without dead ends: 659 [2025-02-05 15:33:47,261 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2025-02-05 15:33:47,261 INFO L435 NwaCegarLoop]: 897 mSDtfsCounter, 113 mSDsluCounter, 5293 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 6190 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:33:47,262 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 6190 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:33:47,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2025-02-05 15:33:47,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 640. [2025-02-05 15:33:47,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 512 states have (on average 1.64453125) internal successors, (842), 533 states have internal predecessors, (842), 99 states have call successors, (99), 27 states have call predecessors, (99), 28 states have return successors, (96), 92 states have call predecessors, (96), 94 states have call successors, (96) [2025-02-05 15:33:47,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 1037 transitions. [2025-02-05 15:33:47,276 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 1037 transitions. Word has length 141 [2025-02-05 15:33:47,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:33:47,276 INFO L471 AbstractCegarLoop]: Abstraction has 640 states and 1037 transitions. [2025-02-05 15:33:47,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2025-02-05 15:33:47,276 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 1037 transitions. [2025-02-05 15:33:47,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-02-05 15:33:47,279 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:33:47,279 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:33:47,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-02-05 15:33:47,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-02-05 15:33:47,480 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:33:47,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:33:47,480 INFO L85 PathProgramCache]: Analyzing trace with hash -2074462565, now seen corresponding path program 1 times [2025-02-05 15:33:47,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:33:47,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791817913] [2025-02-05 15:33:47,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:47,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:33:47,491 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-02-05 15:33:47,495 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-02-05 15:33:47,495 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:47,495 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:47,559 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-02-05 15:33:47,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:33:47,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791817913] [2025-02-05 15:33:47,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791817913] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:33:47,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558843523] [2025-02-05 15:33:47,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:47,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:47,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:33:47,565 INFO L229 MonitoredProcess]: Starting monitored process 12 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 15:33:47,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-05 15:33:47,693 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-02-05 15:33:47,844 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-02-05 15:33:47,845 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:47,845 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:47,851 INFO L256 TraceCheckSpWp]: Trace formula consists of 1891 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-05 15:33:47,855 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:33:47,903 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-05 15:33:47,904 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:33:47,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558843523] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:33:47,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:33:47,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2025-02-05 15:33:47,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852416011] [2025-02-05 15:33:47,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:33:47,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 15:33:47,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:33:47,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 15:33:47,906 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:33:47,906 INFO L87 Difference]: Start difference. First operand 640 states and 1037 transitions. Second operand has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2025-02-05 15:33:47,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:33:47,980 INFO L93 Difference]: Finished difference Result 1145 states and 1869 transitions. [2025-02-05 15:33:47,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 15:33:47,980 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 141 [2025-02-05 15:33:47,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:33:47,984 INFO L225 Difference]: With dead ends: 1145 [2025-02-05 15:33:47,984 INFO L226 Difference]: Without dead ends: 664 [2025-02-05 15:33:47,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 137 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 15:33:47,987 INFO L435 NwaCegarLoop]: 910 mSDtfsCounter, 86 mSDsluCounter, 4471 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 5381 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:33:47,987 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 5381 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:33:47,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2025-02-05 15:33:48,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 659. [2025-02-05 15:33:48,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 528 states have (on average 1.643939393939394) internal successors, (868), 551 states have internal predecessors, (868), 100 states have call successors, (100), 27 states have call predecessors, (100), 30 states have return successors, (99), 93 states have call predecessors, (99), 95 states have call successors, (99) [2025-02-05 15:33:48,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 1067 transitions. [2025-02-05 15:33:48,007 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 1067 transitions. Word has length 141 [2025-02-05 15:33:48,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:33:48,008 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 1067 transitions. [2025-02-05 15:33:48,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.333333333333332) internal successors, (104), 6 states have internal predecessors, (104), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2025-02-05 15:33:48,008 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 1067 transitions. [2025-02-05 15:33:48,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-02-05 15:33:48,011 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:33:48,011 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:33:48,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-02-05 15:33:48,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-02-05 15:33:48,216 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:33:48,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:33:48,216 INFO L85 PathProgramCache]: Analyzing trace with hash -330550761, now seen corresponding path program 1 times [2025-02-05 15:33:48,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:33:48,216 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158862873] [2025-02-05 15:33:48,216 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:48,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:33:48,228 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-02-05 15:33:48,232 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-02-05 15:33:48,232 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:48,232 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:48,275 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-02-05 15:33:48,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:33:48,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158862873] [2025-02-05 15:33:48,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158862873] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:33:48,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1011414221] [2025-02-05 15:33:48,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:48,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:48,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:33:48,279 INFO L229 MonitoredProcess]: Starting monitored process 13 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 15:33:48,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-05 15:33:48,393 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-02-05 15:33:48,520 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-02-05 15:33:48,520 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:48,520 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:48,525 INFO L256 TraceCheckSpWp]: Trace formula consists of 1892 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:33:48,527 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:33:48,543 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-05 15:33:48,543 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:33:48,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1011414221] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:33:48,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:33:48,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-02-05 15:33:48,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102367282] [2025-02-05 15:33:48,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:33:48,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:33:48,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:33:48,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:33:48,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:33:48,545 INFO L87 Difference]: Start difference. First operand 659 states and 1067 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-02-05 15:33:48,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:33:48,584 INFO L93 Difference]: Finished difference Result 1212 states and 1979 transitions. [2025-02-05 15:33:48,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 15:33:48,585 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 142 [2025-02-05 15:33:48,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:33:48,588 INFO L225 Difference]: With dead ends: 1212 [2025-02-05 15:33:48,588 INFO L226 Difference]: Without dead ends: 659 [2025-02-05 15:33:48,589 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:33:48,590 INFO L435 NwaCegarLoop]: 905 mSDtfsCounter, 13 mSDsluCounter, 1806 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2711 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:33:48,590 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2711 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:33:48,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2025-02-05 15:33:48,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 659. [2025-02-05 15:33:48,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 528 states have (on average 1.6363636363636365) internal successors, (864), 551 states have internal predecessors, (864), 100 states have call successors, (100), 27 states have call predecessors, (100), 30 states have return successors, (99), 93 states have call predecessors, (99), 95 states have call successors, (99) [2025-02-05 15:33:48,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 1063 transitions. [2025-02-05 15:33:48,604 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 1063 transitions. Word has length 142 [2025-02-05 15:33:48,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:33:48,605 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 1063 transitions. [2025-02-05 15:33:48,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-02-05 15:33:48,605 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 1063 transitions. [2025-02-05 15:33:48,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-02-05 15:33:48,607 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:33:48,608 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:33:48,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-02-05 15:33:48,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:48,808 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:33:48,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:33:48,809 INFO L85 PathProgramCache]: Analyzing trace with hash -875054597, now seen corresponding path program 1 times [2025-02-05 15:33:48,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:33:48,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3479076] [2025-02-05 15:33:48,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:48,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:33:48,823 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-02-05 15:33:48,827 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-02-05 15:33:48,827 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:48,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:48,893 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-05 15:33:48,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:33:48,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3479076] [2025-02-05 15:33:48,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3479076] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:33:48,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884887364] [2025-02-05 15:33:48,894 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:48,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:48,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:33:48,896 INFO L229 MonitoredProcess]: Starting monitored process 14 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 15:33:48,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-05 15:33:49,022 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-02-05 15:33:49,155 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-02-05 15:33:49,155 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:49,155 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:49,160 INFO L256 TraceCheckSpWp]: Trace formula consists of 1892 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-05 15:33:49,164 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:33:49,215 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-05 15:33:49,215 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:33:49,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884887364] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:33:49,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:33:49,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2025-02-05 15:33:49,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624096720] [2025-02-05 15:33:49,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:33:49,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 15:33:49,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:33:49,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 15:33:49,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:33:49,216 INFO L87 Difference]: Start difference. First operand 659 states and 1063 transitions. Second operand has 7 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2025-02-05 15:33:49,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:33:49,298 INFO L93 Difference]: Finished difference Result 1175 states and 1916 transitions. [2025-02-05 15:33:49,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 15:33:49,299 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 142 [2025-02-05 15:33:49,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:33:49,304 INFO L225 Difference]: With dead ends: 1175 [2025-02-05 15:33:49,304 INFO L226 Difference]: Without dead ends: 694 [2025-02-05 15:33:49,306 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 138 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 15:33:49,306 INFO L435 NwaCegarLoop]: 904 mSDtfsCounter, 95 mSDsluCounter, 4438 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 5342 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:33:49,307 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 5342 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:33:49,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2025-02-05 15:33:49,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 659. [2025-02-05 15:33:49,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 528 states have (on average 1.6363636363636365) internal successors, (864), 551 states have internal predecessors, (864), 100 states have call successors, (100), 27 states have call predecessors, (100), 30 states have return successors, (99), 93 states have call predecessors, (99), 95 states have call successors, (99) [2025-02-05 15:33:49,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 1063 transitions. [2025-02-05 15:33:49,321 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 1063 transitions. Word has length 142 [2025-02-05 15:33:49,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:33:49,321 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 1063 transitions. [2025-02-05 15:33:49,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.5) internal successors, (105), 6 states have internal predecessors, (105), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2025-02-05 15:33:49,322 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 1063 transitions. [2025-02-05 15:33:49,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-02-05 15:33:49,324 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:33:49,324 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:33:49,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-02-05 15:33:49,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:49,529 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:33:49,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:33:49,530 INFO L85 PathProgramCache]: Analyzing trace with hash 200866858, now seen corresponding path program 1 times [2025-02-05 15:33:49,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:33:49,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288240364] [2025-02-05 15:33:49,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:49,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:33:49,542 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-02-05 15:33:49,546 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-02-05 15:33:49,546 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:49,546 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:49,591 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-05 15:33:49,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:33:49,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288240364] [2025-02-05 15:33:49,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288240364] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:33:49,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144071732] [2025-02-05 15:33:49,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:49,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:49,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:33:49,594 INFO L229 MonitoredProcess]: Starting monitored process 15 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 15:33:49,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-02-05 15:33:49,712 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-02-05 15:33:49,838 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-02-05 15:33:49,838 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:49,838 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:49,844 INFO L256 TraceCheckSpWp]: Trace formula consists of 1888 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-05 15:33:49,849 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:33:49,896 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-05 15:33:49,896 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:33:49,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144071732] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:33:49,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:33:49,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4] total 10 [2025-02-05 15:33:49,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392533672] [2025-02-05 15:33:49,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:33:49,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-05 15:33:49,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:33:49,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-05 15:33:49,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:33:49,898 INFO L87 Difference]: Start difference. First operand 659 states and 1063 transitions. Second operand has 8 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2025-02-05 15:33:50,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:33:50,001 INFO L93 Difference]: Finished difference Result 1160 states and 1890 transitions. [2025-02-05 15:33:50,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-05 15:33:50,002 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 142 [2025-02-05 15:33:50,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:33:50,006 INFO L225 Difference]: With dead ends: 1160 [2025-02-05 15:33:50,006 INFO L226 Difference]: Without dead ends: 679 [2025-02-05 15:33:50,008 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-02-05 15:33:50,009 INFO L435 NwaCegarLoop]: 893 mSDtfsCounter, 113 mSDsluCounter, 5271 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 6164 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:33:50,009 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 6164 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:33:50,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2025-02-05 15:33:50,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 659. [2025-02-05 15:33:50,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 528 states have (on average 1.6363636363636365) internal successors, (864), 551 states have internal predecessors, (864), 100 states have call successors, (100), 27 states have call predecessors, (100), 30 states have return successors, (99), 93 states have call predecessors, (99), 95 states have call successors, (99) [2025-02-05 15:33:50,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 1063 transitions. [2025-02-05 15:33:50,025 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 1063 transitions. Word has length 142 [2025-02-05 15:33:50,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:33:50,026 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 1063 transitions. [2025-02-05 15:33:50,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2025-02-05 15:33:50,026 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 1063 transitions. [2025-02-05 15:33:50,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2025-02-05 15:33:50,028 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:33:50,029 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:33:50,037 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-02-05 15:33:50,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-02-05 15:33:50,233 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:33:50,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:33:50,234 INFO L85 PathProgramCache]: Analyzing trace with hash 677184708, now seen corresponding path program 1 times [2025-02-05 15:33:50,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:33:50,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943174063] [2025-02-05 15:33:50,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:50,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:33:50,260 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 143 statements into 1 equivalence classes. [2025-02-05 15:33:50,267 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 143 of 143 statements. [2025-02-05 15:33:50,268 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:50,268 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:50,380 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-05 15:33:50,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:33:50,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943174063] [2025-02-05 15:33:50,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943174063] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:33:50,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363814659] [2025-02-05 15:33:50,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:50,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:50,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:33:50,387 INFO L229 MonitoredProcess]: Starting monitored process 16 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 15:33:50,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-02-05 15:33:50,514 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 143 statements into 1 equivalence classes. [2025-02-05 15:33:50,639 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 143 of 143 statements. [2025-02-05 15:33:50,639 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:50,639 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:50,643 INFO L256 TraceCheckSpWp]: Trace formula consists of 1889 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-05 15:33:50,648 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:33:50,703 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-02-05 15:33:50,703 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:33:50,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363814659] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:33:50,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:33:50,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4] total 10 [2025-02-05 15:33:50,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314225402] [2025-02-05 15:33:50,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:33:50,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-05 15:33:50,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:33:50,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-05 15:33:50,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:33:50,704 INFO L87 Difference]: Start difference. First operand 659 states and 1063 transitions. Second operand has 8 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2025-02-05 15:33:50,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:33:50,801 INFO L93 Difference]: Finished difference Result 1160 states and 1891 transitions. [2025-02-05 15:33:50,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-02-05 15:33:50,801 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 143 [2025-02-05 15:33:50,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:33:50,804 INFO L225 Difference]: With dead ends: 1160 [2025-02-05 15:33:50,804 INFO L226 Difference]: Without dead ends: 679 [2025-02-05 15:33:50,807 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-02-05 15:33:50,807 INFO L435 NwaCegarLoop]: 893 mSDtfsCounter, 121 mSDsluCounter, 5261 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 6154 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:33:50,807 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 6154 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:33:50,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2025-02-05 15:33:50,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 659. [2025-02-05 15:33:50,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 528 states have (on average 1.6363636363636365) internal successors, (864), 551 states have internal predecessors, (864), 100 states have call successors, (100), 27 states have call predecessors, (100), 30 states have return successors, (99), 93 states have call predecessors, (99), 95 states have call successors, (99) [2025-02-05 15:33:50,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 1063 transitions. [2025-02-05 15:33:50,823 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 1063 transitions. Word has length 143 [2025-02-05 15:33:50,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:33:50,823 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 1063 transitions. [2025-02-05 15:33:50,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2025-02-05 15:33:50,823 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 1063 transitions. [2025-02-05 15:33:50,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2025-02-05 15:33:50,825 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:33:50,826 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:33:50,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-02-05 15:33:51,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-02-05 15:33:51,030 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:33:51,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:33:51,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1044410099, now seen corresponding path program 1 times [2025-02-05 15:33:51,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:33:51,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295113505] [2025-02-05 15:33:51,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:51,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:33:51,042 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-02-05 15:33:51,047 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-02-05 15:33:51,047 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:51,047 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:51,089 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-02-05 15:33:51,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:33:51,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295113505] [2025-02-05 15:33:51,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295113505] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:33:51,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539277150] [2025-02-05 15:33:51,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:51,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:51,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:33:51,091 INFO L229 MonitoredProcess]: Starting monitored process 17 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 15:33:51,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-02-05 15:33:51,221 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 144 statements into 1 equivalence classes. [2025-02-05 15:33:51,350 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 144 of 144 statements. [2025-02-05 15:33:51,350 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:51,350 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:51,354 INFO L256 TraceCheckSpWp]: Trace formula consists of 1893 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-05 15:33:51,357 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:33:51,374 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-05 15:33:51,374 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:33:51,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539277150] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:33:51,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:33:51,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2025-02-05 15:33:51,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187488973] [2025-02-05 15:33:51,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:33:51,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 15:33:51,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:33:51,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 15:33:51,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:33:51,375 INFO L87 Difference]: Start difference. First operand 659 states and 1063 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-02-05 15:33:51,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:33:51,396 INFO L93 Difference]: Finished difference Result 1138 states and 1859 transitions. [2025-02-05 15:33:51,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 15:33:51,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 144 [2025-02-05 15:33:51,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:33:51,399 INFO L225 Difference]: With dead ends: 1138 [2025-02-05 15:33:51,399 INFO L226 Difference]: Without dead ends: 662 [2025-02-05 15:33:51,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 142 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 15:33:51,400 INFO L435 NwaCegarLoop]: 912 mSDtfsCounter, 0 mSDsluCounter, 2728 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3640 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:33:51,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3640 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:33:51,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2025-02-05 15:33:51,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662. [2025-02-05 15:33:51,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 531 states have (on average 1.6327683615819208) internal successors, (867), 554 states have internal predecessors, (867), 100 states have call successors, (100), 27 states have call predecessors, (100), 30 states have return successors, (99), 93 states have call predecessors, (99), 95 states have call successors, (99) [2025-02-05 15:33:51,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 1066 transitions. [2025-02-05 15:33:51,412 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 1066 transitions. Word has length 144 [2025-02-05 15:33:51,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:33:51,412 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 1066 transitions. [2025-02-05 15:33:51,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-02-05 15:33:51,412 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 1066 transitions. [2025-02-05 15:33:51,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-02-05 15:33:51,415 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:33:51,415 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 15:33:51,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-02-05 15:33:51,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:51,615 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:33:51,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:33:51,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1041331686, now seen corresponding path program 1 times [2025-02-05 15:33:51,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:33:51,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351750395] [2025-02-05 15:33:51,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:51,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:33:51,628 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-02-05 15:33:51,631 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-02-05 15:33:51,632 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:51,632 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:51,697 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-02-05 15:33:51,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:33:51,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351750395] [2025-02-05 15:33:51,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351750395] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:33:51,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397121612] [2025-02-05 15:33:51,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:51,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:51,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:33:51,699 INFO L229 MonitoredProcess]: Starting monitored process 18 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 15:33:51,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-02-05 15:33:51,820 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-02-05 15:33:51,947 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-02-05 15:33:51,948 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:51,948 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:51,952 INFO L256 TraceCheckSpWp]: Trace formula consists of 1900 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-05 15:33:51,954 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:33:51,964 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-02-05 15:33:51,964 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:33:51,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397121612] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:33:51,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:33:51,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2025-02-05 15:33:51,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368928932] [2025-02-05 15:33:51,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:33:51,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:33:51,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:33:51,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:33:51,965 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:33:51,965 INFO L87 Difference]: Start difference. First operand 662 states and 1066 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:33:51,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:33:51,992 INFO L93 Difference]: Finished difference Result 1298 states and 2102 transitions. [2025-02-05 15:33:51,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 15:33:51,993 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 147 [2025-02-05 15:33:51,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:33:51,995 INFO L225 Difference]: With dead ends: 1298 [2025-02-05 15:33:51,995 INFO L226 Difference]: Without dead ends: 637 [2025-02-05 15:33:51,996 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-05 15:33:51,997 INFO L435 NwaCegarLoop]: 907 mSDtfsCounter, 7 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2714 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:33:51,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2714 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:33:51,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2025-02-05 15:33:52,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 637. [2025-02-05 15:33:52,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 509 states have (on average 1.6286836935166995) internal successors, (829), 530 states have internal predecessors, (829), 99 states have call successors, (99), 27 states have call predecessors, (99), 28 states have return successors, (96), 92 states have call predecessors, (96), 94 states have call successors, (96) [2025-02-05 15:33:52,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 1024 transitions. [2025-02-05 15:33:52,008 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 1024 transitions. Word has length 147 [2025-02-05 15:33:52,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:33:52,008 INFO L471 AbstractCegarLoop]: Abstraction has 637 states and 1024 transitions. [2025-02-05 15:33:52,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:33:52,008 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 1024 transitions. [2025-02-05 15:33:52,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2025-02-05 15:33:52,010 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:33:52,010 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:33:52,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-02-05 15:33:52,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-02-05 15:33:52,211 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:33:52,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:33:52,212 INFO L85 PathProgramCache]: Analyzing trace with hash 2091993155, now seen corresponding path program 1 times [2025-02-05 15:33:52,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:33:52,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772562361] [2025-02-05 15:33:52,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:52,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:33:52,233 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-02-05 15:33:52,241 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-02-05 15:33:52,241 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:52,241 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:52,337 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-05 15:33:52,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:33:52,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772562361] [2025-02-05 15:33:52,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [772562361] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:33:52,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078566432] [2025-02-05 15:33:52,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:52,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:52,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:33:52,339 INFO L229 MonitoredProcess]: Starting monitored process 19 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 15:33:52,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-02-05 15:33:52,472 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-02-05 15:33:52,606 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-02-05 15:33:52,606 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:52,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:52,613 INFO L256 TraceCheckSpWp]: Trace formula consists of 1902 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-05 15:33:52,619 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:33:52,640 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-05 15:33:52,640 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:33:52,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078566432] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:33:52,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:33:52,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2025-02-05 15:33:52,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009946051] [2025-02-05 15:33:52,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:33:52,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:33:52,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:33:52,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:33:52,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:33:52,641 INFO L87 Difference]: Start difference. First operand 637 states and 1024 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:33:52,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:33:52,679 INFO L93 Difference]: Finished difference Result 1228 states and 1995 transitions. [2025-02-05 15:33:52,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 15:33:52,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 148 [2025-02-05 15:33:52,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:33:52,682 INFO L225 Difference]: With dead ends: 1228 [2025-02-05 15:33:52,682 INFO L226 Difference]: Without dead ends: 655 [2025-02-05 15:33:52,683 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:33:52,683 INFO L435 NwaCegarLoop]: 899 mSDtfsCounter, 7 mSDsluCounter, 1785 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2684 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:33:52,684 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2684 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:33:52,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2025-02-05 15:33:52,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 655. [2025-02-05 15:33:52,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 527 states have (on average 1.6110056925996206) internal successors, (849), 548 states have internal predecessors, (849), 99 states have call successors, (99), 27 states have call predecessors, (99), 28 states have return successors, (96), 92 states have call predecessors, (96), 94 states have call successors, (96) [2025-02-05 15:33:52,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 1044 transitions. [2025-02-05 15:33:52,699 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 1044 transitions. Word has length 148 [2025-02-05 15:33:52,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:33:52,699 INFO L471 AbstractCegarLoop]: Abstraction has 655 states and 1044 transitions. [2025-02-05 15:33:52,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:33:52,699 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 1044 transitions. [2025-02-05 15:33:52,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-02-05 15:33:52,703 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:33:52,703 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:33:52,713 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-02-05 15:33:52,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-02-05 15:33:52,904 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:33:52,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:33:52,904 INFO L85 PathProgramCache]: Analyzing trace with hash -427578369, now seen corresponding path program 1 times [2025-02-05 15:33:52,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:33:52,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105158951] [2025-02-05 15:33:52,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:52,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:33:52,917 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-02-05 15:33:52,921 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-02-05 15:33:52,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:52,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:53,097 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-05 15:33:53,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:33:53,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105158951] [2025-02-05 15:33:53,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105158951] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:33:53,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259506934] [2025-02-05 15:33:53,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:53,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:53,098 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:33:53,100 INFO L229 MonitoredProcess]: Starting monitored process 20 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 15:33:53,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-02-05 15:33:53,252 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-02-05 15:33:53,400 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-02-05 15:33:53,400 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:53,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:53,408 INFO L256 TraceCheckSpWp]: Trace formula consists of 1903 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-02-05 15:33:53,413 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:33:53,437 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-05 15:33:53,437 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:33:53,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259506934] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:33:53,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:33:53,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 7 [2025-02-05 15:33:53,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705755794] [2025-02-05 15:33:53,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:33:53,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 15:33:53,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:33:53,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 15:33:53,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:33:53,440 INFO L87 Difference]: Start difference. First operand 655 states and 1044 transitions. Second operand has 7 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:33:53,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:33:53,492 INFO L93 Difference]: Finished difference Result 1279 states and 2052 transitions. [2025-02-05 15:33:53,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 15:33:53,492 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 149 [2025-02-05 15:33:53,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:33:53,495 INFO L225 Difference]: With dead ends: 1279 [2025-02-05 15:33:53,495 INFO L226 Difference]: Without dead ends: 655 [2025-02-05 15:33:53,497 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 150 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 15:33:53,497 INFO L435 NwaCegarLoop]: 925 mSDtfsCounter, 119 mSDsluCounter, 4499 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 5424 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:33:53,497 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 5424 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:33:53,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2025-02-05 15:33:53,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 634. [2025-02-05 15:33:53,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 506 states have (on average 1.6106719367588933) internal successors, (815), 527 states have internal predecessors, (815), 99 states have call successors, (99), 27 states have call predecessors, (99), 28 states have return successors, (96), 92 states have call predecessors, (96), 94 states have call successors, (96) [2025-02-05 15:33:53,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 1010 transitions. [2025-02-05 15:33:53,508 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 1010 transitions. Word has length 149 [2025-02-05 15:33:53,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:33:53,508 INFO L471 AbstractCegarLoop]: Abstraction has 634 states and 1010 transitions. [2025-02-05 15:33:53,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:33:53,508 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 1010 transitions. [2025-02-05 15:33:53,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2025-02-05 15:33:53,510 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:33:53,510 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:33:53,521 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-02-05 15:33:53,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:53,714 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:33:53,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:33:53,718 INFO L85 PathProgramCache]: Analyzing trace with hash -2097639989, now seen corresponding path program 1 times [2025-02-05 15:33:53,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:33:53,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186801379] [2025-02-05 15:33:53,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:53,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:33:53,738 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 151 statements into 1 equivalence classes. [2025-02-05 15:33:53,742 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 151 of 151 statements. [2025-02-05 15:33:53,742 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:53,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:53,862 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-05 15:33:53,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:33:53,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186801379] [2025-02-05 15:33:53,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186801379] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 15:33:53,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279111738] [2025-02-05 15:33:53,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:53,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:53,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 15:33:53,866 INFO L229 MonitoredProcess]: Starting monitored process 21 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 15:33:53,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-02-05 15:33:54,000 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 151 statements into 1 equivalence classes. [2025-02-05 15:33:54,141 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 151 of 151 statements. [2025-02-05 15:33:54,141 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:54,141 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:54,146 INFO L256 TraceCheckSpWp]: Trace formula consists of 1909 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 15:33:54,152 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 15:33:54,175 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-05 15:33:54,175 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 15:33:54,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1279111738] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:33:54,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 15:33:54,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2025-02-05 15:33:54,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346819625] [2025-02-05 15:33:54,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:33:54,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:33:54,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:33:54,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:33:54,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-02-05 15:33:54,177 INFO L87 Difference]: Start difference. First operand 634 states and 1010 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:33:54,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:33:54,255 INFO L93 Difference]: Finished difference Result 1261 states and 2022 transitions. [2025-02-05 15:33:54,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 15:33:54,256 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 151 [2025-02-05 15:33:54,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:33:54,259 INFO L225 Difference]: With dead ends: 1261 [2025-02-05 15:33:54,259 INFO L226 Difference]: Without dead ends: 658 [2025-02-05 15:33:54,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:33:54,261 INFO L435 NwaCegarLoop]: 890 mSDtfsCounter, 128 mSDsluCounter, 1703 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 2593 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:33:54,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 2593 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:33:54,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2025-02-05 15:33:54,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 634. [2025-02-05 15:33:54,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 506 states have (on average 1.608695652173913) internal successors, (814), 527 states have internal predecessors, (814), 99 states have call successors, (99), 27 states have call predecessors, (99), 28 states have return successors, (96), 92 states have call predecessors, (96), 94 states have call successors, (96) [2025-02-05 15:33:54,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 1009 transitions. [2025-02-05 15:33:54,273 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 1009 transitions. Word has length 151 [2025-02-05 15:33:54,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:33:54,273 INFO L471 AbstractCegarLoop]: Abstraction has 634 states and 1009 transitions. [2025-02-05 15:33:54,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:33:54,273 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 1009 transitions. [2025-02-05 15:33:54,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2025-02-05 15:33:54,275 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:33:54,275 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:33:54,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-02-05 15:33:54,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 15:33:54,476 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:33:54,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:33:54,477 INFO L85 PathProgramCache]: Analyzing trace with hash -647906294, now seen corresponding path program 1 times [2025-02-05 15:33:54,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:33:54,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004405732] [2025-02-05 15:33:54,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:54,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:33:54,511 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 152 statements into 1 equivalence classes. [2025-02-05 15:33:54,517 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 152 of 152 statements. [2025-02-05 15:33:54,517 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:54,517 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:54,563 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-02-05 15:33:54,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:33:54,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004405732] [2025-02-05 15:33:54,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004405732] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:33:54,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:33:54,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 15:33:54,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975102971] [2025-02-05 15:33:54,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:33:54,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:33:54,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:33:54,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:33:54,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:33:54,565 INFO L87 Difference]: Start difference. First operand 634 states and 1009 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:33:54,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:33:54,589 INFO L93 Difference]: Finished difference Result 1196 states and 1931 transitions. [2025-02-05 15:33:54,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 15:33:54,590 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 152 [2025-02-05 15:33:54,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:33:54,593 INFO L225 Difference]: With dead ends: 1196 [2025-02-05 15:33:54,593 INFO L226 Difference]: Without dead ends: 594 [2025-02-05 15:33:54,594 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-05 15:33:54,595 INFO L435 NwaCegarLoop]: 905 mSDtfsCounter, 8 mSDsluCounter, 1806 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2711 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:33:54,595 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2711 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:33:54,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2025-02-05 15:33:54,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 594. [2025-02-05 15:33:54,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 469 states have (on average 1.6012793176972282) internal successors, (751), 488 states have internal predecessors, (751), 98 states have call successors, (98), 27 states have call predecessors, (98), 26 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) [2025-02-05 15:33:54,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 942 transitions. [2025-02-05 15:33:54,605 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 942 transitions. Word has length 152 [2025-02-05 15:33:54,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:33:54,605 INFO L471 AbstractCegarLoop]: Abstraction has 594 states and 942 transitions. [2025-02-05 15:33:54,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-02-05 15:33:54,605 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 942 transitions. [2025-02-05 15:33:54,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-02-05 15:33:54,607 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:33:54,607 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:33:54,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-02-05 15:33:54,607 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:33:54,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:33:54,608 INFO L85 PathProgramCache]: Analyzing trace with hash -2087920330, now seen corresponding path program 1 times [2025-02-05 15:33:54,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:33:54,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702415539] [2025-02-05 15:33:54,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:54,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:33:54,621 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-02-05 15:33:54,629 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-02-05 15:33:54,629 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:54,630 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:54,719 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-02-05 15:33:54,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:33:54,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702415539] [2025-02-05 15:33:54,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702415539] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:33:54,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:33:54,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-05 15:33:54,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338003694] [2025-02-05 15:33:54,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:33:54,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 15:33:54,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:33:54,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 15:33:54,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:33:54,721 INFO L87 Difference]: Start difference. First operand 594 states and 942 transitions. Second operand has 7 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:33:54,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:33:54,766 INFO L93 Difference]: Finished difference Result 1099 states and 1770 transitions. [2025-02-05 15:33:54,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 15:33:54,766 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 153 [2025-02-05 15:33:54,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:33:54,769 INFO L225 Difference]: With dead ends: 1099 [2025-02-05 15:33:54,769 INFO L226 Difference]: Without dead ends: 580 [2025-02-05 15:33:54,771 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 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 15:33:54,774 INFO L435 NwaCegarLoop]: 888 mSDtfsCounter, 88 mSDsluCounter, 4362 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 5250 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:33:54,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 5250 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:33:54,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2025-02-05 15:33:54,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2025-02-05 15:33:54,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 455 states have (on average 1.5956043956043957) internal successors, (726), 474 states have internal predecessors, (726), 98 states have call successors, (98), 27 states have call predecessors, (98), 26 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) [2025-02-05 15:33:54,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 917 transitions. [2025-02-05 15:33:54,787 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 917 transitions. Word has length 153 [2025-02-05 15:33:54,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:33:54,787 INFO L471 AbstractCegarLoop]: Abstraction has 580 states and 917 transitions. [2025-02-05 15:33:54,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:33:54,787 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 917 transitions. [2025-02-05 15:33:54,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-02-05 15:33:54,790 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:33:54,790 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:33:54,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-02-05 15:33:54,790 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:33:54,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:33:54,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1220685047, now seen corresponding path program 1 times [2025-02-05 15:33:54,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:33:54,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085700304] [2025-02-05 15:33:54,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:54,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:33:54,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-02-05 15:33:54,809 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-02-05 15:33:54,809 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:54,809 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:54,981 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-02-05 15:33:54,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:33:54,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085700304] [2025-02-05 15:33:54,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085700304] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:33:54,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:33:54,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-02-05 15:33:54,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839525907] [2025-02-05 15:33:54,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:33:54,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-05 15:33:54,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:33:54,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-05 15:33:54,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:33:54,983 INFO L87 Difference]: Start difference. First operand 580 states and 917 transitions. Second operand has 10 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:33:55,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:33:55,095 INFO L93 Difference]: Finished difference Result 1126 states and 1798 transitions. [2025-02-05 15:33:55,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-05 15:33:55,095 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 154 [2025-02-05 15:33:55,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:33:55,098 INFO L225 Difference]: With dead ends: 1126 [2025-02-05 15:33:55,098 INFO L226 Difference]: Without dead ends: 571 [2025-02-05 15:33:55,099 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-02-05 15:33:55,099 INFO L435 NwaCegarLoop]: 848 mSDtfsCounter, 45 mSDsluCounter, 6737 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 7585 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 15:33:55,099 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 7585 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 15:33:55,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2025-02-05 15:33:55,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2025-02-05 15:33:55,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 446 states have (on average 1.594170403587444) internal successors, (711), 465 states have internal predecessors, (711), 98 states have call successors, (98), 27 states have call predecessors, (98), 26 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) [2025-02-05 15:33:55,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 902 transitions. [2025-02-05 15:33:55,109 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 902 transitions. Word has length 154 [2025-02-05 15:33:55,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:33:55,109 INFO L471 AbstractCegarLoop]: Abstraction has 571 states and 902 transitions. [2025-02-05 15:33:55,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.222222222222221) internal successors, (119), 9 states have internal predecessors, (119), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-02-05 15:33:55,109 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 902 transitions. [2025-02-05 15:33:55,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2025-02-05 15:33:55,110 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:33:55,110 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:33:55,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-02-05 15:33:55,111 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:33:55,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:33:55,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1327046470, now seen corresponding path program 1 times [2025-02-05 15:33:55,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:33:55,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017947107] [2025-02-05 15:33:55,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:55,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:33:55,126 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-02-05 15:33:55,134 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-02-05 15:33:55,134 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:55,134 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:55,207 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-02-05 15:33:55,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:33:55,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017947107] [2025-02-05 15:33:55,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017947107] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:33:55,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:33:55,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 15:33:55,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369076457] [2025-02-05 15:33:55,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:33:55,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 15:33:55,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:33:55,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 15:33:55,208 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:33:55,209 INFO L87 Difference]: Start difference. First operand 571 states and 902 transitions. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 6 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2025-02-05 15:33:57,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:33:57,142 INFO L93 Difference]: Finished difference Result 1770 states and 2927 transitions. [2025-02-05 15:33:57,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 15:33:57,143 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 6 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) Word has length 155 [2025-02-05 15:33:57,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:33:57,148 INFO L225 Difference]: With dead ends: 1770 [2025-02-05 15:33:57,148 INFO L226 Difference]: Without dead ends: 1291 [2025-02-05 15:33:57,149 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:33:57,149 INFO L435 NwaCegarLoop]: 677 mSDtfsCounter, 3230 mSDsluCounter, 1067 mSDsCounter, 0 mSdLazyCounter, 3387 mSolverCounterSat, 846 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3272 SdHoareTripleChecker+Valid, 1744 SdHoareTripleChecker+Invalid, 4233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 846 IncrementalHoareTripleChecker+Valid, 3387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-02-05 15:33:57,149 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3272 Valid, 1744 Invalid, 4233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [846 Valid, 3387 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-02-05 15:33:57,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1291 states. [2025-02-05 15:33:57,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1291 to 1129. [2025-02-05 15:33:57,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1129 states, 862 states have (on average 1.6148491879350348) internal successors, (1392), 902 states have internal predecessors, (1392), 218 states have call successors, (218), 46 states have call predecessors, (218), 48 states have return successors, (222), 211 states have call predecessors, (222), 213 states have call successors, (222) [2025-02-05 15:33:57,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 1832 transitions. [2025-02-05 15:33:57,177 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 1832 transitions. Word has length 155 [2025-02-05 15:33:57,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:33:57,178 INFO L471 AbstractCegarLoop]: Abstraction has 1129 states and 1832 transitions. [2025-02-05 15:33:57,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 6 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2025-02-05 15:33:57,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 1832 transitions. [2025-02-05 15:33:57,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-02-05 15:33:57,179 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:33:57,180 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:33:57,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-02-05 15:33:57,180 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:33:57,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:33:57,180 INFO L85 PathProgramCache]: Analyzing trace with hash 674758022, now seen corresponding path program 1 times [2025-02-05 15:33:57,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:33:57,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148932219] [2025-02-05 15:33:57,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:57,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:33:57,192 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-02-05 15:33:57,200 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-02-05 15:33:57,200 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:57,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:57,271 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-02-05 15:33:57,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:33:57,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148932219] [2025-02-05 15:33:57,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148932219] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:33:57,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:33:57,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 15:33:57,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371079975] [2025-02-05 15:33:57,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:33:57,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 15:33:57,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:33:57,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 15:33:57,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:33:57,272 INFO L87 Difference]: Start difference. First operand 1129 states and 1832 transitions. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 6 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2025-02-05 15:33:59,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:33:59,249 INFO L93 Difference]: Finished difference Result 3963 states and 6658 transitions. [2025-02-05 15:33:59,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 15:33:59,250 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 6 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) Word has length 156 [2025-02-05 15:33:59,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:33:59,262 INFO L225 Difference]: With dead ends: 3963 [2025-02-05 15:33:59,262 INFO L226 Difference]: Without dead ends: 2927 [2025-02-05 15:33:59,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:33:59,266 INFO L435 NwaCegarLoop]: 676 mSDtfsCounter, 3243 mSDsluCounter, 1081 mSDsCounter, 0 mSdLazyCounter, 3348 mSolverCounterSat, 870 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3286 SdHoareTripleChecker+Valid, 1757 SdHoareTripleChecker+Invalid, 4218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 870 IncrementalHoareTripleChecker+Valid, 3348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-02-05 15:33:59,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3286 Valid, 1757 Invalid, 4218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [870 Valid, 3348 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-02-05 15:33:59,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2927 states. [2025-02-05 15:33:59,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2927 to 2500. [2025-02-05 15:33:59,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2500 states, 1863 states have (on average 1.618894256575416) internal successors, (3016), 1958 states have internal predecessors, (3016), 538 states have call successors, (538), 84 states have call predecessors, (538), 98 states have return successors, (581), 533 states have call predecessors, (581), 533 states have call successors, (581) [2025-02-05 15:33:59,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2500 states to 2500 states and 4135 transitions. [2025-02-05 15:33:59,330 INFO L78 Accepts]: Start accepts. Automaton has 2500 states and 4135 transitions. Word has length 156 [2025-02-05 15:33:59,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:33:59,330 INFO L471 AbstractCegarLoop]: Abstraction has 2500 states and 4135 transitions. [2025-02-05 15:33:59,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 6 states have internal predecessors, (109), 6 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2025-02-05 15:33:59,330 INFO L276 IsEmpty]: Start isEmpty. Operand 2500 states and 4135 transitions. [2025-02-05 15:33:59,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2025-02-05 15:33:59,332 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:33:59,332 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:33:59,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-02-05 15:33:59,333 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:33:59,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:33:59,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1396337759, now seen corresponding path program 1 times [2025-02-05 15:33:59,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:33:59,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719768472] [2025-02-05 15:33:59,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:33:59,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:33:59,344 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 157 statements into 1 equivalence classes. [2025-02-05 15:33:59,354 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 157 of 157 statements. [2025-02-05 15:33:59,354 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:33:59,354 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:33:59,432 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-02-05 15:33:59,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:33:59,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719768472] [2025-02-05 15:33:59,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719768472] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:33:59,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:33:59,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 15:33:59,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422944731] [2025-02-05 15:33:59,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:33:59,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 15:33:59,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:33:59,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 15:33:59,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:33:59,433 INFO L87 Difference]: Start difference. First operand 2500 states and 4135 transitions. Second operand has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 6 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2025-02-05 15:34:01,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:34:01,471 INFO L93 Difference]: Finished difference Result 9705 states and 16515 transitions. [2025-02-05 15:34:01,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 15:34:01,471 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 6 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) Word has length 157 [2025-02-05 15:34:01,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:34:01,505 INFO L225 Difference]: With dead ends: 9705 [2025-02-05 15:34:01,506 INFO L226 Difference]: Without dead ends: 7300 [2025-02-05 15:34:01,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:34:01,519 INFO L435 NwaCegarLoop]: 682 mSDtfsCounter, 3255 mSDsluCounter, 1096 mSDsCounter, 0 mSdLazyCounter, 3355 mSolverCounterSat, 873 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3299 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 4228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 873 IncrementalHoareTripleChecker+Valid, 3355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-02-05 15:34:01,519 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3299 Valid, 1778 Invalid, 4228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [873 Valid, 3355 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-02-05 15:34:01,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7300 states. [2025-02-05 15:34:01,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7300 to 6043. [2025-02-05 15:34:01,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6043 states, 4407 states have (on average 1.6135693215339233) internal successors, (7111), 4650 states have internal predecessors, (7111), 1418 states have call successors, (1418), 160 states have call predecessors, (1418), 217 states have return successors, (1610), 1423 states have call predecessors, (1610), 1413 states have call successors, (1610) [2025-02-05 15:34:01,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6043 states to 6043 states and 10139 transitions. [2025-02-05 15:34:01,767 INFO L78 Accepts]: Start accepts. Automaton has 6043 states and 10139 transitions. Word has length 157 [2025-02-05 15:34:01,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:34:01,768 INFO L471 AbstractCegarLoop]: Abstraction has 6043 states and 10139 transitions. [2025-02-05 15:34:01,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 states have internal predecessors, (110), 6 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2025-02-05 15:34:01,768 INFO L276 IsEmpty]: Start isEmpty. Operand 6043 states and 10139 transitions. [2025-02-05 15:34:01,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-02-05 15:34:01,770 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:34:01,770 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:34:01,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-02-05 15:34:01,772 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:34:01,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:34:01,772 INFO L85 PathProgramCache]: Analyzing trace with hash 1085655755, now seen corresponding path program 1 times [2025-02-05 15:34:01,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:34:01,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889918831] [2025-02-05 15:34:01,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:34:01,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:34:01,783 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-02-05 15:34:01,790 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-02-05 15:34:01,790 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:34:01,790 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:34:01,869 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-02-05 15:34:01,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:34:01,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889918831] [2025-02-05 15:34:01,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889918831] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:34:01,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:34:01,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 15:34:01,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284804784] [2025-02-05 15:34:01,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:34:01,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 15:34:01,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:34:01,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 15:34:01,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:34:01,872 INFO L87 Difference]: Start difference. First operand 6043 states and 10139 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 6 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2025-02-05 15:34:04,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:34:04,557 INFO L93 Difference]: Finished difference Result 25463 states and 43785 transitions. [2025-02-05 15:34:04,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 15:34:04,557 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 6 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) Word has length 158 [2025-02-05 15:34:04,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:34:04,663 INFO L225 Difference]: With dead ends: 25463 [2025-02-05 15:34:04,663 INFO L226 Difference]: Without dead ends: 19519 [2025-02-05 15:34:04,685 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:34:04,686 INFO L435 NwaCegarLoop]: 688 mSDtfsCounter, 3267 mSDsluCounter, 1111 mSDsCounter, 0 mSdLazyCounter, 3364 mSolverCounterSat, 875 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3312 SdHoareTripleChecker+Valid, 1799 SdHoareTripleChecker+Invalid, 4239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 875 IncrementalHoareTripleChecker+Valid, 3364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-02-05 15:34:04,686 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3312 Valid, 1799 Invalid, 4239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [875 Valid, 3364 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-02-05 15:34:04,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19519 states. [2025-02-05 15:34:05,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19519 to 15662. [2025-02-05 15:34:05,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15662 states, 11243 states have (on average 1.6054433869963534) internal successors, (18050), 11894 states have internal predecessors, (18050), 3902 states have call successors, (3902), 312 states have call predecessors, (3902), 516 states have return successors, (4625), 3945 states have call predecessors, (4625), 3897 states have call successors, (4625) [2025-02-05 15:34:05,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15662 states to 15662 states and 26577 transitions. [2025-02-05 15:34:05,468 INFO L78 Accepts]: Start accepts. Automaton has 15662 states and 26577 transitions. Word has length 158 [2025-02-05 15:34:05,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:34:05,469 INFO L471 AbstractCegarLoop]: Abstraction has 15662 states and 26577 transitions. [2025-02-05 15:34:05,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 6 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2025-02-05 15:34:05,469 INFO L276 IsEmpty]: Start isEmpty. Operand 15662 states and 26577 transitions. [2025-02-05 15:34:05,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2025-02-05 15:34:05,472 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:34:05,472 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:34:05,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-02-05 15:34:05,472 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:34:05,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:34:05,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1160369148, now seen corresponding path program 1 times [2025-02-05 15:34:05,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:34:05,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855262021] [2025-02-05 15:34:05,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:34:05,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:34:05,485 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-02-05 15:34:05,494 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-02-05 15:34:05,494 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:34:05,494 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:34:05,571 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-02-05 15:34:05,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:34:05,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855262021] [2025-02-05 15:34:05,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855262021] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:34:05,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:34:05,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 15:34:05,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516231390] [2025-02-05 15:34:05,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:34:05,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 15:34:05,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:34:05,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 15:34:05,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 15:34:05,573 INFO L87 Difference]: Start difference. First operand 15662 states and 26577 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 6 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2025-02-05 15:34:09,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:34:09,901 INFO L93 Difference]: Finished difference Result 70481 states and 122177 transitions. [2025-02-05 15:34:09,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 15:34:09,902 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 6 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) Word has length 159 [2025-02-05 15:34:09,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:34:10,400 INFO L225 Difference]: With dead ends: 70481 [2025-02-05 15:34:10,400 INFO L226 Difference]: Without dead ends: 54926 [2025-02-05 15:34:10,466 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2025-02-05 15:34:10,467 INFO L435 NwaCegarLoop]: 694 mSDtfsCounter, 3279 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 3373 mSolverCounterSat, 877 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3325 SdHoareTripleChecker+Valid, 1820 SdHoareTripleChecker+Invalid, 4250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 877 IncrementalHoareTripleChecker+Valid, 3373 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-02-05 15:34:10,467 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3325 Valid, 1820 Invalid, 4250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [877 Valid, 3373 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-02-05 15:34:10,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54926 states. [2025-02-05 15:34:13,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54926 to 42913. [2025-02-05 15:34:13,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42913 states, 30543 states have (on average 1.5984349932881512) internal successors, (48821), 32342 states have internal predecessors, (48821), 11058 states have call successors, (11058), 616 states have call predecessors, (11058), 1311 states have return successors, (13590), 11231 states have call predecessors, (13590), 11053 states have call successors, (13590) [2025-02-05 15:34:13,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42913 states to 42913 states and 73469 transitions. [2025-02-05 15:34:13,301 INFO L78 Accepts]: Start accepts. Automaton has 42913 states and 73469 transitions. Word has length 159 [2025-02-05 15:34:13,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:34:13,301 INFO L471 AbstractCegarLoop]: Abstraction has 42913 states and 73469 transitions. [2025-02-05 15:34:13,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 6 states have internal predecessors, (112), 6 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2025-02-05 15:34:13,301 INFO L276 IsEmpty]: Start isEmpty. Operand 42913 states and 73469 transitions. [2025-02-05 15:34:13,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2025-02-05 15:34:13,305 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:34:13,305 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:34:13,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-02-05 15:34:13,305 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:34:13,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:34:13,306 INFO L85 PathProgramCache]: Analyzing trace with hash 801205510, now seen corresponding path program 1 times [2025-02-05 15:34:13,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:34:13,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735900911] [2025-02-05 15:34:13,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:34:13,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:34:13,318 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-02-05 15:34:13,554 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-02-05 15:34:13,554 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:34:13,554 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:34:13,660 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-02-05 15:34:13,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:34:13,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735900911] [2025-02-05 15:34:13,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735900911] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:34:13,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:34:13,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-05 15:34:13,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976893153] [2025-02-05 15:34:13,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:34:13,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-05 15:34:13,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:34:13,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-05 15:34:13,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 15:34:13,662 INFO L87 Difference]: Start difference. First operand 42913 states and 73469 transitions. Second operand has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 states have internal predecessors, (112), 6 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2025-02-05 15:34:20,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:34:20,708 INFO L93 Difference]: Finished difference Result 138085 states and 236671 transitions. [2025-02-05 15:34:20,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-02-05 15:34:20,709 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 states have internal predecessors, (112), 6 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) Word has length 159 [2025-02-05 15:34:20,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:34:21,316 INFO L225 Difference]: With dead ends: 138085 [2025-02-05 15:34:21,316 INFO L226 Difference]: Without dead ends: 95295 [2025-02-05 15:34:21,424 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2025-02-05 15:34:21,424 INFO L435 NwaCegarLoop]: 458 mSDtfsCounter, 2472 mSDsluCounter, 2500 mSDsCounter, 0 mSdLazyCounter, 5598 mSolverCounterSat, 549 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2556 SdHoareTripleChecker+Valid, 2958 SdHoareTripleChecker+Invalid, 6147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 549 IncrementalHoareTripleChecker+Valid, 5598 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2025-02-05 15:34:21,424 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2556 Valid, 2958 Invalid, 6147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [549 Valid, 5598 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2025-02-05 15:34:21,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95295 states. [2025-02-05 15:34:26,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95295 to 92438. [2025-02-05 15:34:26,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92438 states, 66279 states have (on average 1.5961465924350096) internal successors, (105791), 69967 states have internal predecessors, (105791), 23127 states have call successors, (23127), 1384 states have call predecessors, (23127), 3031 states have return successors, (28838), 23640 states have call predecessors, (28838), 23122 states have call successors, (28838) [2025-02-05 15:34:27,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92438 states to 92438 states and 157756 transitions. [2025-02-05 15:34:27,291 INFO L78 Accepts]: Start accepts. Automaton has 92438 states and 157756 transitions. Word has length 159 [2025-02-05 15:34:27,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:34:27,291 INFO L471 AbstractCegarLoop]: Abstraction has 92438 states and 157756 transitions. [2025-02-05 15:34:27,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.444444444444445) internal successors, (112), 9 states have internal predecessors, (112), 6 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (16), 6 states have call predecessors, (16), 5 states have call successors, (16) [2025-02-05 15:34:27,292 INFO L276 IsEmpty]: Start isEmpty. Operand 92438 states and 157756 transitions. [2025-02-05 15:34:27,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2025-02-05 15:34:27,295 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:34:27,295 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:34:27,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-02-05 15:34:27,296 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:34:27,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:34:27,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1917797126, now seen corresponding path program 1 times [2025-02-05 15:34:27,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:34:27,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354225467] [2025-02-05 15:34:27,296 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:34:27,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:34:27,307 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-02-05 15:34:27,314 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-02-05 15:34:27,314 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:34:27,314 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:34:27,366 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-02-05 15:34:27,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:34:27,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354225467] [2025-02-05 15:34:27,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354225467] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:34:27,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:34:27,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 15:34:27,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715023428] [2025-02-05 15:34:27,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:34:27,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 15:34:27,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:34:27,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 15:34:27,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 15:34:27,368 INFO L87 Difference]: Start difference. First operand 92438 states and 157756 transitions. Second operand has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-02-05 15:34:33,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:34:33,027 INFO L93 Difference]: Finished difference Result 184755 states and 315355 transitions. [2025-02-05 15:34:33,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 15:34:33,028 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 165 [2025-02-05 15:34:33,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:34:33,498 INFO L225 Difference]: With dead ends: 184755 [2025-02-05 15:34:33,498 INFO L226 Difference]: Without dead ends: 92440 [2025-02-05 15:34:33,748 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 15:34:33,749 INFO L435 NwaCegarLoop]: 872 mSDtfsCounter, 3 mSDsluCounter, 1735 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2607 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:34:33,749 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2607 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:34:33,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92440 states. [2025-02-05 15:34:38,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92440 to 92430. [2025-02-05 15:34:38,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92430 states, 66274 states have (on average 1.5961463017171138) internal successors, (105783), 69964 states have internal predecessors, (105783), 23124 states have call successors, (23124), 1384 states have call predecessors, (23124), 3031 states have return successors, (28833), 23635 states have call predecessors, (28833), 23119 states have call successors, (28833) [2025-02-05 15:34:39,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92430 states to 92430 states and 157740 transitions. [2025-02-05 15:34:39,354 INFO L78 Accepts]: Start accepts. Automaton has 92430 states and 157740 transitions. Word has length 165 [2025-02-05 15:34:39,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:34:39,355 INFO L471 AbstractCegarLoop]: Abstraction has 92430 states and 157740 transitions. [2025-02-05 15:34:39,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.0) internal successors, (116), 4 states have internal predecessors, (116), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-02-05 15:34:39,355 INFO L276 IsEmpty]: Start isEmpty. Operand 92430 states and 157740 transitions. [2025-02-05 15:34:39,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2025-02-05 15:34:39,360 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:34:39,366 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:34:39,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2025-02-05 15:34:39,367 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:34:39,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:34:39,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1767334171, now seen corresponding path program 1 times [2025-02-05 15:34:39,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:34:39,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380116245] [2025-02-05 15:34:39,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:34:39,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:34:39,389 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-02-05 15:34:39,409 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-02-05 15:34:39,409 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:34:39,409 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:34:39,548 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-02-05 15:34:39,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:34:39,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380116245] [2025-02-05 15:34:39,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380116245] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:34:39,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:34:39,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-05 15:34:39,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505114198] [2025-02-05 15:34:39,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:34:39,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 15:34:39,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:34:39,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 15:34:39,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:34:39,550 INFO L87 Difference]: Start difference. First operand 92430 states and 157740 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2025-02-05 15:34:44,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 15:34:44,616 INFO L93 Difference]: Finished difference Result 185729 states and 316969 transitions. [2025-02-05 15:34:44,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-05 15:34:44,616 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) Word has length 165 [2025-02-05 15:34:44,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 15:34:45,076 INFO L225 Difference]: With dead ends: 185729 [2025-02-05 15:34:45,077 INFO L226 Difference]: Without dead ends: 93422 [2025-02-05 15:34:45,318 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 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 15:34:45,319 INFO L435 NwaCegarLoop]: 872 mSDtfsCounter, 0 mSDsluCounter, 4328 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5200 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 15:34:45,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5200 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 15:34:45,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93422 states. [2025-02-05 15:34:50,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93422 to 93102. [2025-02-05 15:34:50,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93102 states, 66754 states have (on average 1.591859663840369) internal successors, (106263), 70444 states have internal predecessors, (106263), 23124 states have call successors, (23124), 1384 states have call predecessors, (23124), 3223 states have return successors, (29310), 23827 states have call predecessors, (29310), 23119 states have call successors, (29310) [2025-02-05 15:34:51,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93102 states to 93102 states and 158697 transitions. [2025-02-05 15:34:51,101 INFO L78 Accepts]: Start accepts. Automaton has 93102 states and 158697 transitions. Word has length 165 [2025-02-05 15:34:51,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 15:34:51,102 INFO L471 AbstractCegarLoop]: Abstraction has 93102 states and 158697 transitions. [2025-02-05 15:34:51,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 5 states have internal predecessors, (116), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2025-02-05 15:34:51,102 INFO L276 IsEmpty]: Start isEmpty. Operand 93102 states and 158697 transitions. [2025-02-05 15:34:51,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-02-05 15:34:51,106 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 15:34:51,106 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:34:51,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-02-05 15:34:51,106 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 15:34:51,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 15:34:51,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1286060011, now seen corresponding path program 1 times [2025-02-05 15:34:51,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 15:34:51,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904002166] [2025-02-05 15:34:51,107 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 15:34:51,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 15:34:51,118 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-02-05 15:34:51,126 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-02-05 15:34:51,126 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 15:34:51,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 15:34:51,208 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-02-05 15:34:51,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 15:34:51,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904002166] [2025-02-05 15:34:51,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904002166] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 15:34:51,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 15:34:51,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-05 15:34:51,209 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022483332] [2025-02-05 15:34:51,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 15:34:51,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 15:34:51,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 15:34:51,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 15:34:51,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-05 15:34:51,210 INFO L87 Difference]: Start difference. First operand 93102 states and 158697 transitions. Second operand has 7 states, 7 states have (on average 16.428571428571427) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (18), 2 states have call predecessors, (18), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17)