./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec1_product26.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 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_product26.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 2b84cfef0f3fa5659093b8e6c2d8a82a1b18913f669c8d0a2efe9a0300cc4873 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 03:42:46,976 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 03:42:47,038 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 03:42:47,043 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 03:42:47,048 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 03:42:47,073 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 03:42:47,074 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 03:42:47,074 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 03:42:47,075 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 03:42:47,075 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 03:42:47,076 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 03:42:47,076 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 03:42:47,076 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 03:42:47,076 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 03:42:47,076 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 03:42:47,077 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 03:42:47,077 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 03:42:47,077 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 03:42:47,077 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 03:42:47,077 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 03:42:47,077 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 03:42:47,077 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 03:42:47,077 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 03:42:47,077 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 03:42:47,077 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 03:42:47,078 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 03:42:47,078 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 03:42:47,078 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 03:42:47,078 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 03:42:47,078 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:42:47,078 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:42:47,078 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:42:47,078 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:42:47,079 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 03:42:47,079 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:42:47,079 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:42:47,079 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:42:47,079 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:42:47,079 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 03:42:47,079 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 03:42:47,079 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 03:42:47,079 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 03:42:47,079 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 03:42:47,079 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 03:42:47,079 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 03:42:47,080 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 03:42:47,080 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 03:42:47,080 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 03:42:47,080 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 -> 2b84cfef0f3fa5659093b8e6c2d8a82a1b18913f669c8d0a2efe9a0300cc4873 [2025-01-09 03:42:47,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 03:42:47,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 03:42:47,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 03:42:47,334 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 03:42:47,334 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 03:42:47,336 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec1_product26.cil.c [2025-01-09 03:42:49,234 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f3590e19d/f54c5d49ec3f420bb5e05a784504a549/FLAG36450b4a0 [2025-01-09 03:42:49,675 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 03:42:49,678 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec1_product26.cil.c [2025-01-09 03:42:49,700 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f3590e19d/f54c5d49ec3f420bb5e05a784504a549/FLAG36450b4a0 [2025-01-09 03:42:49,718 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f3590e19d/f54c5d49ec3f420bb5e05a784504a549 [2025-01-09 03:42:49,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 03:42:49,723 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 03:42:49,724 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 03:42:49,725 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 03:42:49,730 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 03:42:49,731 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:42:49" (1/1) ... [2025-01-09 03:42:49,732 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3501cb0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:49, skipping insertion in model container [2025-01-09 03:42:49,732 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:42:49" (1/1) ... [2025-01-09 03:42:49,766 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 03:42:50,105 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_product26.cil.c[55974,55987] [2025-01-09 03:42:50,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:42:50,127 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 03:42:50,133 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [48] [2025-01-09 03:42:50,134 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [64] [2025-01-09 03:42:50,134 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1592] [2025-01-09 03:42:50,134 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1958] [2025-01-09 03:42:50,134 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1996] [2025-01-09 03:42:50,134 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [2090] [2025-01-09 03:42:50,134 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [2208] [2025-01-09 03:42:50,134 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2390] [2025-01-09 03:42:50,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2740] [2025-01-09 03:42:50,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2749] [2025-01-09 03:42:50,195 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_product26.cil.c[55974,55987] [2025-01-09 03:42:50,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:42:50,219 INFO L204 MainTranslator]: Completed translation [2025-01-09 03:42:50,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:50 WrapperNode [2025-01-09 03:42:50,220 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 03:42:50,221 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 03:42:50,221 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 03:42:50,221 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 03:42:50,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:50" (1/1) ... [2025-01-09 03:42:50,252 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:50" (1/1) ... [2025-01-09 03:42:50,297 INFO L138 Inliner]: procedures = 93, calls = 341, calls flagged for inlining = 28, calls inlined = 24, statements flattened = 846 [2025-01-09 03:42:50,300 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 03:42:50,300 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 03:42:50,300 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 03:42:50,300 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 03:42:50,307 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:50" (1/1) ... [2025-01-09 03:42:50,308 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:50" (1/1) ... [2025-01-09 03:42:50,312 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:50" (1/1) ... [2025-01-09 03:42:50,327 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]. [2025-01-09 03:42:50,328 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:50" (1/1) ... [2025-01-09 03:42:50,328 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:50" (1/1) ... [2025-01-09 03:42:50,338 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:50" (1/1) ... [2025-01-09 03:42:50,340 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:50" (1/1) ... [2025-01-09 03:42:50,348 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:50" (1/1) ... [2025-01-09 03:42:50,352 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:50" (1/1) ... [2025-01-09 03:42:50,354 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:50" (1/1) ... [2025-01-09 03:42:50,359 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 03:42:50,360 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 03:42:50,360 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 03:42:50,360 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 03:42:50,363 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:50" (1/1) ... [2025-01-09 03:42:50,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:42:50,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:42:50,392 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) [2025-01-09 03:42:50,394 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 [2025-01-09 03:42:50,415 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2025-01-09 03:42:50,415 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2025-01-09 03:42:50,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 03:42:50,415 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2025-01-09 03:42:50,415 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2025-01-09 03:42:50,416 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2025-01-09 03:42:50,416 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2025-01-09 03:42:50,416 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2025-01-09 03:42:50,416 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2025-01-09 03:42:50,416 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2025-01-09 03:42:50,416 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2025-01-09 03:42:50,416 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2025-01-09 03:42:50,416 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2025-01-09 03:42:50,416 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-01-09 03:42:50,416 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-01-09 03:42:50,416 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-01-09 03:42:50,416 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-01-09 03:42:50,416 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2025-01-09 03:42:50,416 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2025-01-09 03:42:50,416 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2025-01-09 03:42:50,416 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2025-01-09 03:42:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2025-01-09 03:42:50,417 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2025-01-09 03:42:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2025-01-09 03:42:50,417 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2025-01-09 03:42:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2025-01-09 03:42:50,417 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2025-01-09 03:42:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2025-01-09 03:42:50,417 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2025-01-09 03:42:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2025-01-09 03:42:50,417 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2025-01-09 03:42:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__empty [2025-01-09 03:42:50,417 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__empty [2025-01-09 03:42:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2025-01-09 03:42:50,417 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2025-01-09 03:42:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2025-01-09 03:42:50,417 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2025-01-09 03:42:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2025-01-09 03:42:50,417 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2025-01-09 03:42:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 03:42:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 03:42:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 03:42:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 03:42:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 03:42:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 03:42:50,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 03:42:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 03:42:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-01-09 03:42:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-01-09 03:42:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-01-09 03:42:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-01-09 03:42:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-01-09 03:42:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-01-09 03:42:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-01-09 03:42:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-01-09 03:42:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-01-09 03:42:50,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-01-09 03:42:50,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-01-09 03:42:50,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-01-09 03:42:50,419 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2025-01-09 03:42:50,419 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2025-01-09 03:42:50,419 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2025-01-09 03:42:50,419 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2025-01-09 03:42:50,419 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2025-01-09 03:42:50,419 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2025-01-09 03:42:50,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 03:42:50,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 03:42:50,419 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2025-01-09 03:42:50,419 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2025-01-09 03:42:50,548 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 03:42:50,551 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 03:42:51,646 INFO L? ?]: Removed 441 outVars from TransFormulas that were not future-live. [2025-01-09 03:42:51,647 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 03:42:51,674 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 03:42:51,679 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 03:42:51,680 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:42:51 BoogieIcfgContainer [2025-01-09 03:42:51,680 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 03:42:51,681 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 03:42:51,684 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 03:42:51,704 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 03:42:51,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 03:42:49" (1/3) ... [2025-01-09 03:42:51,706 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c851722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:42:51, skipping insertion in model container [2025-01-09 03:42:51,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:50" (2/3) ... [2025-01-09 03:42:51,707 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c851722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:42:51, skipping insertion in model container [2025-01-09 03:42:51,707 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:42:51" (3/3) ... [2025-01-09 03:42:51,708 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product26.cil.c [2025-01-09 03:42:51,717 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 03:42:51,719 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec1_product26.cil.c that has 24 procedures, 556 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 03:42:51,778 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 03:42:51,786 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;@3ef421fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 03:42:51,787 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 03:42:51,792 INFO L276 IsEmpty]: Start isEmpty. Operand has 556 states, 437 states have (on average 1.702517162471396) internal successors, (744), 460 states have internal predecessors, (744), 94 states have call successors, (94), 23 states have call predecessors, (94), 23 states have return successors, (94), 87 states have call predecessors, (94), 94 states have call successors, (94) [2025-01-09 03:42:51,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2025-01-09 03:42:51,804 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:42:51,804 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-01-09 03:42:51,805 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:42:51,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:42:51,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1345176876, now seen corresponding path program 1 times [2025-01-09 03:42:51,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:42:51,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123955806] [2025-01-09 03:42:51,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:51,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:42:51,906 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-01-09 03:42:51,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-01-09 03:42:51,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:51,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:52,417 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-09 03:42:52,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:42:52,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123955806] [2025-01-09 03:42:52,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123955806] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:42:52,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750452280] [2025-01-09 03:42:52,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:52,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:42:52,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:42:52,426 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) [2025-01-09 03:42:52,428 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 [2025-01-09 03:42:52,554 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 79 statements into 1 equivalence classes. [2025-01-09 03:42:52,774 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 79 of 79 statements. [2025-01-09 03:42:52,774 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:52,774 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:52,781 INFO L256 TraceCheckSpWp]: Trace formula consists of 1714 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 03:42:52,788 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:42:52,808 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-01-09 03:42:52,808 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:42:52,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750452280] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:42:52,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:42:52,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 4 [2025-01-09 03:42:52,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832759357] [2025-01-09 03:42:52,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:42:52,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 03:42:52,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:42:52,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 03:42:52,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:42:52,836 INFO L87 Difference]: Start difference. First operand has 556 states, 437 states have (on average 1.702517162471396) internal successors, (744), 460 states have internal predecessors, (744), 94 states have call successors, (94), 23 states have call predecessors, (94), 23 states have return successors, (94), 87 states have call predecessors, (94), 94 states have call successors, (94) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2025-01-09 03:42:52,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:42:52,891 INFO L93 Difference]: Finished difference Result 577 states and 962 transitions. [2025-01-09 03:42:52,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 03:42:52,897 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) Word has length 79 [2025-01-09 03:42:52,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:42:52,912 INFO L225 Difference]: With dead ends: 577 [2025-01-09 03:42:52,912 INFO L226 Difference]: Without dead ends: 548 [2025-01-09 03:42:52,916 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:42:52,919 INFO L435 NwaCegarLoop]: 924 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 924 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:42:52,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:42:52,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2025-01-09 03:42:52,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2025-01-09 03:42:52,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 431 states have (on average 1.703016241299304) internal successors, (734), 452 states have internal predecessors, (734), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 86 states have call predecessors, (89), 89 states have call successors, (89) [2025-01-09 03:42:52,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 917 transitions. [2025-01-09 03:42:52,992 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 917 transitions. Word has length 79 [2025-01-09 03:42:52,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:42:52,993 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 917 transitions. [2025-01-09 03:42:52,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 1 states have call successors, (9) [2025-01-09 03:42:52,994 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 917 transitions. [2025-01-09 03:42:52,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2025-01-09 03:42:52,997 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:42:52,997 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-01-09 03:42:53,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-09 03:42:53,197 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 [2025-01-09 03:42:53,198 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:42:53,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:42:53,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1958299237, now seen corresponding path program 1 times [2025-01-09 03:42:53,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:42:53,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005813348] [2025-01-09 03:42:53,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:53,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:42:53,223 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-01-09 03:42:53,237 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-01-09 03:42:53,238 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:53,238 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:53,392 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-09 03:42:53,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:42:53,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005813348] [2025-01-09 03:42:53,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005813348] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:42:53,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277056872] [2025-01-09 03:42:53,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:53,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:42:53,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:42:53,395 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) [2025-01-09 03:42:53,399 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 [2025-01-09 03:42:53,528 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 80 statements into 1 equivalence classes. [2025-01-09 03:42:53,714 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 80 of 80 statements. [2025-01-09 03:42:53,715 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:53,715 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:53,721 INFO L256 TraceCheckSpWp]: Trace formula consists of 1716 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:42:53,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:42:53,764 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 03:42:53,767 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:42:53,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277056872] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:42:53,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:42:53,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:42:53,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123561074] [2025-01-09 03:42:53,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:42:53,768 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:42:53,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:42:53,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:42:53,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:42:53,769 INFO L87 Difference]: Start difference. First operand 548 states and 917 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 03:42:53,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:42:53,859 INFO L93 Difference]: Finished difference Result 1087 states and 1826 transitions. [2025-01-09 03:42:53,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:42:53,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 80 [2025-01-09 03:42:53,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:42:53,866 INFO L225 Difference]: With dead ends: 1087 [2025-01-09 03:42:53,866 INFO L226 Difference]: Without dead ends: 548 [2025-01-09 03:42:53,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:42:53,874 INFO L435 NwaCegarLoop]: 905 mSDtfsCounter, 5 mSDsluCounter, 1804 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2709 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 [2025-01-09 03:42:53,875 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2709 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:42:53,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2025-01-09 03:42:53,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2025-01-09 03:42:53,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 431 states have (on average 1.7006960556844548) internal successors, (733), 452 states have internal predecessors, (733), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 86 states have call predecessors, (89), 89 states have call successors, (89) [2025-01-09 03:42:53,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 916 transitions. [2025-01-09 03:42:53,906 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 916 transitions. Word has length 80 [2025-01-09 03:42:53,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:42:53,906 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 916 transitions. [2025-01-09 03:42:53,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 03:42:53,906 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 916 transitions. [2025-01-09 03:42:53,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2025-01-09 03:42:53,909 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:42:53,909 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:42:53,918 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-09 03:42:54,109 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 [2025-01-09 03:42:54,110 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:42:54,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:42:54,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1267064701, now seen corresponding path program 1 times [2025-01-09 03:42:54,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:42:54,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490861003] [2025-01-09 03:42:54,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:54,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:42:54,136 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-01-09 03:42:54,148 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-01-09 03:42:54,149 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:54,149 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:54,254 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-09 03:42:54,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:42:54,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490861003] [2025-01-09 03:42:54,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490861003] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:42:54,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270185441] [2025-01-09 03:42:54,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:54,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:42:54,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:42:54,257 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) [2025-01-09 03:42:54,258 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 [2025-01-09 03:42:54,366 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 82 statements into 1 equivalence classes. [2025-01-09 03:42:54,535 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 82 of 82 statements. [2025-01-09 03:42:54,536 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:54,536 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:54,540 INFO L256 TraceCheckSpWp]: Trace formula consists of 1718 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:42:54,544 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:42:54,564 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 03:42:54,565 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:42:54,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270185441] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:42:54,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:42:54,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:42:54,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552924129] [2025-01-09 03:42:54,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:42:54,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:42:54,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:42:54,566 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:42:54,566 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:42:54,566 INFO L87 Difference]: Start difference. First operand 548 states and 916 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 03:42:54,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:42:54,618 INFO L93 Difference]: Finished difference Result 1087 states and 1824 transitions. [2025-01-09 03:42:54,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:42:54,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 82 [2025-01-09 03:42:54,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:42:54,622 INFO L225 Difference]: With dead ends: 1087 [2025-01-09 03:42:54,622 INFO L226 Difference]: Without dead ends: 548 [2025-01-09 03:42:54,625 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:42:54,625 INFO L435 NwaCegarLoop]: 905 mSDtfsCounter, 4 mSDsluCounter, 1804 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2709 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 [2025-01-09 03:42:54,626 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2709 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:42:54,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2025-01-09 03:42:54,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2025-01-09 03:42:54,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 431 states have (on average 1.6983758700696057) internal successors, (732), 452 states have internal predecessors, (732), 94 states have call successors, (94), 23 states have call predecessors, (94), 22 states have return successors, (89), 86 states have call predecessors, (89), 89 states have call successors, (89) [2025-01-09 03:42:54,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 915 transitions. [2025-01-09 03:42:54,644 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 915 transitions. Word has length 82 [2025-01-09 03:42:54,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:42:54,644 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 915 transitions. [2025-01-09 03:42:54,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 03:42:54,644 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 915 transitions. [2025-01-09 03:42:54,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-01-09 03:42:54,646 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:42:54,647 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] [2025-01-09 03:42:54,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-09 03:42:54,847 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 [2025-01-09 03:42:54,848 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:42:54,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:42:54,848 INFO L85 PathProgramCache]: Analyzing trace with hash -204697509, now seen corresponding path program 1 times [2025-01-09 03:42:54,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:42:54,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513453122] [2025-01-09 03:42:54,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:54,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:42:54,862 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-01-09 03:42:54,869 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-01-09 03:42:54,869 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:54,869 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:54,961 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-09 03:42:54,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:42:54,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513453122] [2025-01-09 03:42:54,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513453122] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:42:54,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221303551] [2025-01-09 03:42:54,962 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:54,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:42:54,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:42:54,966 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) [2025-01-09 03:42:54,969 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 [2025-01-09 03:42:55,072 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-01-09 03:42:55,210 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-01-09 03:42:55,211 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:55,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:55,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 1720 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:42:55,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:42:55,242 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 03:42:55,243 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:42:55,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221303551] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:42:55,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:42:55,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:42:55,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920486289] [2025-01-09 03:42:55,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:42:55,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:42:55,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:42:55,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:42:55,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:42:55,245 INFO L87 Difference]: Start difference. First operand 548 states and 915 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 03:42:55,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:42:55,309 INFO L93 Difference]: Finished difference Result 1094 states and 1831 transitions. [2025-01-09 03:42:55,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:42:55,310 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 84 [2025-01-09 03:42:55,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:42:55,313 INFO L225 Difference]: With dead ends: 1094 [2025-01-09 03:42:55,313 INFO L226 Difference]: Without dead ends: 557 [2025-01-09 03:42:55,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:42:55,316 INFO L435 NwaCegarLoop]: 904 mSDtfsCounter, 13 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2706 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 [2025-01-09 03:42:55,316 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2706 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:42:55,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2025-01-09 03:42:55,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2025-01-09 03:42:55,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 439 states have (on average 1.6947608200455582) internal successors, (744), 460 states have internal predecessors, (744), 94 states have call successors, (94), 24 states have call predecessors, (94), 23 states have return successors, (89), 86 states have call predecessors, (89), 89 states have call successors, (89) [2025-01-09 03:42:55,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 927 transitions. [2025-01-09 03:42:55,334 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 927 transitions. Word has length 84 [2025-01-09 03:42:55,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:42:55,334 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 927 transitions. [2025-01-09 03:42:55,334 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 03:42:55,335 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 927 transitions. [2025-01-09 03:42:55,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2025-01-09 03:42:55,336 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:42:55,336 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:42:55,344 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-09 03:42:55,536 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 [2025-01-09 03:42:55,537 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:42:55,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:42:55,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1252312196, now seen corresponding path program 1 times [2025-01-09 03:42:55,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:42:55,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155306042] [2025-01-09 03:42:55,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:55,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:42:55,553 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-01-09 03:42:55,559 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-01-09 03:42:55,559 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:55,559 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:55,638 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-09 03:42:55,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:42:55,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155306042] [2025-01-09 03:42:55,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155306042] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:42:55,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307405508] [2025-01-09 03:42:55,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:55,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:42:55,638 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:42:55,644 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) [2025-01-09 03:42:55,645 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 [2025-01-09 03:42:55,738 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 85 statements into 1 equivalence classes. [2025-01-09 03:42:55,871 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 85 of 85 statements. [2025-01-09 03:42:55,871 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:55,871 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:55,876 INFO L256 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:42:55,879 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:42:55,896 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 03:42:55,896 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:42:55,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307405508] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:42:55,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:42:55,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:42:55,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793540717] [2025-01-09 03:42:55,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:42:55,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:42:55,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:42:55,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:42:55,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:42:55,898 INFO L87 Difference]: Start difference. First operand 557 states and 927 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 03:42:55,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:42:55,948 INFO L93 Difference]: Finished difference Result 1096 states and 1832 transitions. [2025-01-09 03:42:55,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:42:55,948 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 85 [2025-01-09 03:42:55,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:42:55,951 INFO L225 Difference]: With dead ends: 1096 [2025-01-09 03:42:55,952 INFO L226 Difference]: Without dead ends: 557 [2025-01-09 03:42:55,953 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:42:55,954 INFO L435 NwaCegarLoop]: 904 mSDtfsCounter, 11 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2706 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 [2025-01-09 03:42:55,954 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2706 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:42:55,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2025-01-09 03:42:55,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2025-01-09 03:42:55,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 439 states have (on average 1.6924829157175398) internal successors, (743), 460 states have internal predecessors, (743), 94 states have call successors, (94), 24 states have call predecessors, (94), 23 states have return successors, (89), 86 states have call predecessors, (89), 89 states have call successors, (89) [2025-01-09 03:42:55,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 926 transitions. [2025-01-09 03:42:55,969 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 926 transitions. Word has length 85 [2025-01-09 03:42:55,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:42:55,969 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 926 transitions. [2025-01-09 03:42:55,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 03:42:55,969 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 926 transitions. [2025-01-09 03:42:55,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-01-09 03:42:55,970 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:42:55,970 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:42:55,980 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-09 03:42:56,171 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 [2025-01-09 03:42:56,171 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:42:56,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:42:56,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1303078921, now seen corresponding path program 1 times [2025-01-09 03:42:56,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:42:56,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117393527] [2025-01-09 03:42:56,172 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:56,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:42:56,182 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-01-09 03:42:56,187 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-01-09 03:42:56,188 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:56,188 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:56,251 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-09 03:42:56,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:42:56,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117393527] [2025-01-09 03:42:56,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117393527] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:42:56,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187279858] [2025-01-09 03:42:56,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:56,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:42:56,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:42:56,256 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) [2025-01-09 03:42:56,257 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 [2025-01-09 03:42:56,350 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-01-09 03:42:56,501 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-01-09 03:42:56,502 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:56,502 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:56,507 INFO L256 TraceCheckSpWp]: Trace formula consists of 1722 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:42:56,509 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:42:56,526 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 03:42:56,526 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:42:56,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1187279858] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:42:56,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:42:56,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:42:56,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367674426] [2025-01-09 03:42:56,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:42:56,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:42:56,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:42:56,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:42:56,527 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:42:56,528 INFO L87 Difference]: Start difference. First operand 557 states and 926 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 03:42:56,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:42:56,573 INFO L93 Difference]: Finished difference Result 1096 states and 1831 transitions. [2025-01-09 03:42:56,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:42:56,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) Word has length 86 [2025-01-09 03:42:56,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:42:56,577 INFO L225 Difference]: With dead ends: 1096 [2025-01-09 03:42:56,577 INFO L226 Difference]: Without dead ends: 557 [2025-01-09 03:42:56,579 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:42:56,579 INFO L435 NwaCegarLoop]: 904 mSDtfsCounter, 10 mSDsluCounter, 1802 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2706 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 [2025-01-09 03:42:56,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2706 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:42:56,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2025-01-09 03:42:56,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2025-01-09 03:42:56,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 439 states have (on average 1.6902050113895217) internal successors, (742), 460 states have internal predecessors, (742), 94 states have call successors, (94), 24 states have call predecessors, (94), 23 states have return successors, (89), 86 states have call predecessors, (89), 89 states have call successors, (89) [2025-01-09 03:42:56,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 925 transitions. [2025-01-09 03:42:56,595 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 925 transitions. Word has length 86 [2025-01-09 03:42:56,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:42:56,595 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 925 transitions. [2025-01-09 03:42:56,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 1 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 03:42:56,595 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 925 transitions. [2025-01-09 03:42:56,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-01-09 03:42:56,596 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:42:56,596 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:42:56,604 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-09 03:42:56,796 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 [2025-01-09 03:42:56,797 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:42:56,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:42:56,797 INFO L85 PathProgramCache]: Analyzing trace with hash 606123360, now seen corresponding path program 1 times [2025-01-09 03:42:56,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:42:56,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059571666] [2025-01-09 03:42:56,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:56,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:42:56,808 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-01-09 03:42:56,813 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-01-09 03:42:56,813 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:56,813 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:56,925 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-09 03:42:56,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:42:56,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059571666] [2025-01-09 03:42:56,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059571666] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:42:56,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [213052040] [2025-01-09 03:42:56,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:56,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:42:56,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:42:56,931 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) [2025-01-09 03:42:56,936 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 [2025-01-09 03:42:57,090 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-01-09 03:42:57,216 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-01-09 03:42:57,217 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:57,217 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:57,222 INFO L256 TraceCheckSpWp]: Trace formula consists of 1723 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 03:42:57,225 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:42:57,273 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 03:42:57,273 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:42:57,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [213052040] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:42:57,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:42:57,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2025-01-09 03:42:57,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514056707] [2025-01-09 03:42:57,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:42:57,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:42:57,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:42:57,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:42:57,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:42:57,275 INFO L87 Difference]: Start difference. First operand 557 states and 925 transitions. Second operand has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2025-01-09 03:42:57,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:42:57,348 INFO L93 Difference]: Finished difference Result 1115 states and 1861 transitions. [2025-01-09 03:42:57,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:42:57,351 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 87 [2025-01-09 03:42:57,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:42:57,354 INFO L225 Difference]: With dead ends: 1115 [2025-01-09 03:42:57,354 INFO L226 Difference]: Without dead ends: 580 [2025-01-09 03:42:57,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:42:57,356 INFO L435 NwaCegarLoop]: 905 mSDtfsCounter, 100 mSDsluCounter, 4439 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 5344 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:42:57,357 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 5344 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:42:57,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2025-01-09 03:42:57,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 576. [2025-01-09 03:42:57,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 455 states have (on average 1.687912087912088) internal successors, (768), 478 states have internal predecessors, (768), 95 states have call successors, (95), 24 states have call predecessors, (95), 25 states have return successors, (93), 87 states have call predecessors, (93), 90 states have call successors, (93) [2025-01-09 03:42:57,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 956 transitions. [2025-01-09 03:42:57,372 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 956 transitions. Word has length 87 [2025-01-09 03:42:57,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:42:57,372 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 956 transitions. [2025-01-09 03:42:57,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2025-01-09 03:42:57,373 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 956 transitions. [2025-01-09 03:42:57,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2025-01-09 03:42:57,374 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:42:57,374 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:42:57,382 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-09 03:42:57,578 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 [2025-01-09 03:42:57,578 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:42:57,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:42:57,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1560352255, now seen corresponding path program 1 times [2025-01-09 03:42:57,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:42:57,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709644032] [2025-01-09 03:42:57,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:57,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:42:57,594 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-01-09 03:42:57,599 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-01-09 03:42:57,600 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:57,600 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:57,645 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-09 03:42:57,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:42:57,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709644032] [2025-01-09 03:42:57,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709644032] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:42:57,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580082367] [2025-01-09 03:42:57,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:57,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:42:57,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:42:57,651 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) [2025-01-09 03:42:57,652 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 [2025-01-09 03:42:57,748 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 87 statements into 1 equivalence classes. [2025-01-09 03:42:57,873 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 87 of 87 statements. [2025-01-09 03:42:57,874 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:57,874 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:57,878 INFO L256 TraceCheckSpWp]: Trace formula consists of 1722 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:42:57,881 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:42:57,900 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 03:42:57,901 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:42:57,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580082367] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:42:57,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:42:57,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:42:57,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410425224] [2025-01-09 03:42:57,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:42:57,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:42:57,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:42:57,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:42:57,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:42:57,902 INFO L87 Difference]: Start difference. First operand 576 states and 956 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 03:42:58,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:42:58,039 INFO L93 Difference]: Finished difference Result 1171 states and 1962 transitions. [2025-01-09 03:42:58,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:42:58,039 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 87 [2025-01-09 03:42:58,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:42:58,043 INFO L225 Difference]: With dead ends: 1171 [2025-01-09 03:42:58,043 INFO L226 Difference]: Without dead ends: 591 [2025-01-09 03:42:58,045 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:42:58,045 INFO L435 NwaCegarLoop]: 879 mSDtfsCounter, 76 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 2597 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 [2025-01-09 03:42:58,045 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 2597 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:42:58,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2025-01-09 03:42:58,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 576. [2025-01-09 03:42:58,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 455 states have (on average 1.676923076923077) internal successors, (763), 478 states have internal predecessors, (763), 95 states have call successors, (95), 24 states have call predecessors, (95), 25 states have return successors, (93), 87 states have call predecessors, (93), 90 states have call successors, (93) [2025-01-09 03:42:58,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 951 transitions. [2025-01-09 03:42:58,061 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 951 transitions. Word has length 87 [2025-01-09 03:42:58,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:42:58,062 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 951 transitions. [2025-01-09 03:42:58,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 03:42:58,062 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 951 transitions. [2025-01-09 03:42:58,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-01-09 03:42:58,063 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:42:58,063 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] [2025-01-09 03:42:58,074 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-01-09 03:42:58,263 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 [2025-01-09 03:42:58,264 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:42:58,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:42:58,265 INFO L85 PathProgramCache]: Analyzing trace with hash 490341071, now seen corresponding path program 1 times [2025-01-09 03:42:58,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:42:58,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25769019] [2025-01-09 03:42:58,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:58,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:42:58,275 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-01-09 03:42:58,279 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-01-09 03:42:58,280 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:58,280 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:58,329 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-09 03:42:58,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:42:58,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25769019] [2025-01-09 03:42:58,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25769019] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:42:58,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884243411] [2025-01-09 03:42:58,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:58,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:42:58,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:42:58,334 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) [2025-01-09 03:42:58,336 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 [2025-01-09 03:42:58,436 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-01-09 03:42:58,568 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-01-09 03:42:58,568 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:58,568 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:58,574 INFO L256 TraceCheckSpWp]: Trace formula consists of 1724 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:42:58,576 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:42:58,596 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 03:42:58,597 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:42:58,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884243411] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:42:58,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:42:58,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:42:58,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046698230] [2025-01-09 03:42:58,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:42:58,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:42:58,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:42:58,598 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:42:58,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:42:58,598 INFO L87 Difference]: Start difference. First operand 576 states and 951 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 03:42:58,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:42:58,699 INFO L93 Difference]: Finished difference Result 1171 states and 1952 transitions. [2025-01-09 03:42:58,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:42:58,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 89 [2025-01-09 03:42:58,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:42:58,704 INFO L225 Difference]: With dead ends: 1171 [2025-01-09 03:42:58,704 INFO L226 Difference]: Without dead ends: 591 [2025-01-09 03:42:58,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:42:58,706 INFO L435 NwaCegarLoop]: 879 mSDtfsCounter, 75 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 2597 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 [2025-01-09 03:42:58,706 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 2597 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:42:58,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2025-01-09 03:42:58,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 576. [2025-01-09 03:42:58,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 455 states have (on average 1.665934065934066) internal successors, (758), 478 states have internal predecessors, (758), 95 states have call successors, (95), 24 states have call predecessors, (95), 25 states have return successors, (93), 87 states have call predecessors, (93), 90 states have call successors, (93) [2025-01-09 03:42:58,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 946 transitions. [2025-01-09 03:42:58,750 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 946 transitions. Word has length 89 [2025-01-09 03:42:58,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:42:58,750 INFO L471 AbstractCegarLoop]: Abstraction has 576 states and 946 transitions. [2025-01-09 03:42:58,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 03:42:58,751 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 946 transitions. [2025-01-09 03:42:58,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-01-09 03:42:58,756 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:42:58,757 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] [2025-01-09 03:42:58,765 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-01-09 03:42:58,957 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 [2025-01-09 03:42:58,957 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:42:58,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:42:58,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1824288801, now seen corresponding path program 1 times [2025-01-09 03:42:58,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:42:58,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328411544] [2025-01-09 03:42:58,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:58,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:42:58,975 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-01-09 03:42:58,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-01-09 03:42:58,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:58,980 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:59,030 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-09 03:42:59,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:42:59,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328411544] [2025-01-09 03:42:59,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328411544] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:42:59,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934924738] [2025-01-09 03:42:59,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:59,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:42:59,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:42:59,033 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) [2025-01-09 03:42:59,034 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 [2025-01-09 03:42:59,137 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-01-09 03:42:59,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-01-09 03:42:59,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:59,263 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:59,267 INFO L256 TraceCheckSpWp]: Trace formula consists of 1726 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:42:59,270 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:42:59,292 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 03:42:59,293 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:42:59,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [934924738] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:42:59,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:42:59,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:42:59,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381680178] [2025-01-09 03:42:59,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:42:59,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:42:59,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:42:59,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:42:59,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:42:59,294 INFO L87 Difference]: Start difference. First operand 576 states and 946 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 03:42:59,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:42:59,430 INFO L93 Difference]: Finished difference Result 1222 states and 2024 transitions. [2025-01-09 03:42:59,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:42:59,430 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 91 [2025-01-09 03:42:59,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:42:59,435 INFO L225 Difference]: With dead ends: 1222 [2025-01-09 03:42:59,435 INFO L226 Difference]: Without dead ends: 672 [2025-01-09 03:42:59,437 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:42:59,438 INFO L435 NwaCegarLoop]: 912 mSDtfsCounter, 130 mSDsluCounter, 1716 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 2628 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 [2025-01-09 03:42:59,438 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 2628 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:42:59,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2025-01-09 03:42:59,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 627. [2025-01-09 03:42:59,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 505 states have (on average 1.6693069306930692) internal successors, (843), 528 states have internal predecessors, (843), 95 states have call successors, (95), 25 states have call predecessors, (95), 26 states have return successors, (92), 87 states have call predecessors, (92), 90 states have call successors, (92) [2025-01-09 03:42:59,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 1030 transitions. [2025-01-09 03:42:59,458 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 1030 transitions. Word has length 91 [2025-01-09 03:42:59,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:42:59,458 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 1030 transitions. [2025-01-09 03:42:59,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 03:42:59,458 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 1030 transitions. [2025-01-09 03:42:59,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-01-09 03:42:59,459 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:42:59,460 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:42:59,468 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 [2025-01-09 03:42:59,660 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 [2025-01-09 03:42:59,661 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:42:59,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:42:59,661 INFO L85 PathProgramCache]: Analyzing trace with hash 335917709, now seen corresponding path program 1 times [2025-01-09 03:42:59,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:42:59,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262859371] [2025-01-09 03:42:59,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:59,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:42:59,678 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-01-09 03:42:59,685 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-01-09 03:42:59,685 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:59,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:59,789 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-09 03:42:59,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:42:59,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262859371] [2025-01-09 03:42:59,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262859371] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:42:59,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793629636] [2025-01-09 03:42:59,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:59,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:42:59,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:42:59,792 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) [2025-01-09 03:42:59,793 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 [2025-01-09 03:42:59,891 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-01-09 03:43:00,021 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-01-09 03:43:00,021 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:00,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:00,027 INFO L256 TraceCheckSpWp]: Trace formula consists of 1724 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 03:43:00,031 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:00,088 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 03:43:00,089 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:00,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793629636] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:00,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:00,089 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-01-09 03:43:00,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869831036] [2025-01-09 03:43:00,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:00,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:43:00,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:00,090 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:43:00,090 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:43:00,090 INFO L87 Difference]: Start difference. First operand 627 states and 1030 transitions. Second operand has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2025-01-09 03:43:00,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:00,214 INFO L93 Difference]: Finished difference Result 1184 states and 1953 transitions. [2025-01-09 03:43:00,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 03:43:00,215 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) Word has length 92 [2025-01-09 03:43:00,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:00,220 INFO L225 Difference]: With dead ends: 1184 [2025-01-09 03:43:00,220 INFO L226 Difference]: Without dead ends: 649 [2025-01-09 03:43:00,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2025-01-09 03:43:00,223 INFO L435 NwaCegarLoop]: 885 mSDtfsCounter, 113 mSDsluCounter, 5221 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 6106 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 [2025-01-09 03:43:00,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 6106 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:43:00,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2025-01-09 03:43:00,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 627. [2025-01-09 03:43:00,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 505 states have (on average 1.6693069306930692) internal successors, (843), 528 states have internal predecessors, (843), 95 states have call successors, (95), 25 states have call predecessors, (95), 26 states have return successors, (92), 87 states have call predecessors, (92), 90 states have call successors, (92) [2025-01-09 03:43:00,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 1030 transitions. [2025-01-09 03:43:00,244 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 1030 transitions. Word has length 92 [2025-01-09 03:43:00,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:00,244 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 1030 transitions. [2025-01-09 03:43:00,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 3 states have call successors, (9) [2025-01-09 03:43:00,244 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 1030 transitions. [2025-01-09 03:43:00,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-01-09 03:43:00,245 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:00,246 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] [2025-01-09 03:43:00,254 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 [2025-01-09 03:43:00,446 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 [2025-01-09 03:43:00,447 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:00,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:00,447 INFO L85 PathProgramCache]: Analyzing trace with hash -158084755, now seen corresponding path program 1 times [2025-01-09 03:43:00,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:00,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684605014] [2025-01-09 03:43:00,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:00,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:00,459 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-01-09 03:43:00,464 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-01-09 03:43:00,464 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:00,465 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:00,517 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-09 03:43:00,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:00,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684605014] [2025-01-09 03:43:00,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684605014] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:00,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936725959] [2025-01-09 03:43:00,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:00,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:00,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:00,520 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) [2025-01-09 03:43:00,529 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 [2025-01-09 03:43:00,636 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-01-09 03:43:00,767 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-01-09 03:43:00,768 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:00,768 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:00,772 INFO L256 TraceCheckSpWp]: Trace formula consists of 1727 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:43:00,775 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:00,798 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 03:43:00,800 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:00,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936725959] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:00,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:00,800 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:43:00,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081426716] [2025-01-09 03:43:00,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:00,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:43:00,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:00,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:43:00,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:43:00,802 INFO L87 Difference]: Start difference. First operand 627 states and 1030 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 03:43:00,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:00,942 INFO L93 Difference]: Finished difference Result 1225 states and 2025 transitions. [2025-01-09 03:43:00,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:43:00,943 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 92 [2025-01-09 03:43:00,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:00,946 INFO L225 Difference]: With dead ends: 1225 [2025-01-09 03:43:00,947 INFO L226 Difference]: Without dead ends: 660 [2025-01-09 03:43:00,949 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:43:00,949 INFO L435 NwaCegarLoop]: 911 mSDtfsCounter, 124 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 2601 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 [2025-01-09 03:43:00,949 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 2601 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:43:00,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2025-01-09 03:43:00,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 627. [2025-01-09 03:43:00,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 505 states have (on average 1.6594059405940593) internal successors, (838), 528 states have internal predecessors, (838), 95 states have call successors, (95), 25 states have call predecessors, (95), 26 states have return successors, (92), 87 states have call predecessors, (92), 90 states have call successors, (92) [2025-01-09 03:43:00,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 1025 transitions. [2025-01-09 03:43:00,965 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 1025 transitions. Word has length 92 [2025-01-09 03:43:00,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:00,965 INFO L471 AbstractCegarLoop]: Abstraction has 627 states and 1025 transitions. [2025-01-09 03:43:00,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 03:43:00,965 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 1025 transitions. [2025-01-09 03:43:00,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2025-01-09 03:43:00,967 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:00,967 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:43:00,975 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 [2025-01-09 03:43:01,167 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 [2025-01-09 03:43:01,168 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:01,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:01,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1202969934, now seen corresponding path program 1 times [2025-01-09 03:43:01,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:01,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861913431] [2025-01-09 03:43:01,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:01,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:01,182 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-01-09 03:43:01,187 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-01-09 03:43:01,187 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:01,188 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:01,224 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 03:43:01,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:01,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861913431] [2025-01-09 03:43:01,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861913431] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:01,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631883289] [2025-01-09 03:43:01,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:01,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:01,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:01,227 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) [2025-01-09 03:43:01,228 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 [2025-01-09 03:43:01,357 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-01-09 03:43:01,497 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-01-09 03:43:01,498 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:01,498 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:01,502 INFO L256 TraceCheckSpWp]: Trace formula consists of 1723 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 03:43:01,506 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:01,549 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-09 03:43:01,549 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:01,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631883289] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:01,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:01,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2025-01-09 03:43:01,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158654151] [2025-01-09 03:43:01,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:01,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:43:01,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:01,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:43:01,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:43:01,551 INFO L87 Difference]: Start difference. First operand 627 states and 1025 transitions. Second operand has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-01-09 03:43:01,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:01,624 INFO L93 Difference]: Finished difference Result 1119 states and 1845 transitions. [2025-01-09 03:43:01,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:43:01,624 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 92 [2025-01-09 03:43:01,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:01,628 INFO L225 Difference]: With dead ends: 1119 [2025-01-09 03:43:01,628 INFO L226 Difference]: Without dead ends: 651 [2025-01-09 03:43:01,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:43:01,630 INFO L435 NwaCegarLoop]: 898 mSDtfsCounter, 86 mSDsluCounter, 4411 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 5309 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 [2025-01-09 03:43:01,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 5309 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:01,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2025-01-09 03:43:01,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 646. [2025-01-09 03:43:01,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 521 states have (on average 1.6583493282149713) internal successors, (864), 546 states have internal predecessors, (864), 96 states have call successors, (96), 25 states have call predecessors, (96), 28 states have return successors, (95), 88 states have call predecessors, (95), 91 states have call successors, (95) [2025-01-09 03:43:01,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 1055 transitions. [2025-01-09 03:43:01,648 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 1055 transitions. Word has length 92 [2025-01-09 03:43:01,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:01,649 INFO L471 AbstractCegarLoop]: Abstraction has 646 states and 1055 transitions. [2025-01-09 03:43:01,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-01-09 03:43:01,649 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 1055 transitions. [2025-01-09 03:43:01,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-01-09 03:43:01,650 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:01,650 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-01-09 03:43:01,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-01-09 03:43:01,855 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 [2025-01-09 03:43:01,855 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:01,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:01,856 INFO L85 PathProgramCache]: Analyzing trace with hash 607274435, now seen corresponding path program 1 times [2025-01-09 03:43:01,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:01,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772297952] [2025-01-09 03:43:01,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:01,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:01,867 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-01-09 03:43:01,871 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-01-09 03:43:01,872 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:01,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:01,926 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-09 03:43:01,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:01,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772297952] [2025-01-09 03:43:01,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772297952] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:01,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898842244] [2025-01-09 03:43:01,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:01,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:01,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:01,928 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) [2025-01-09 03:43:01,933 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 [2025-01-09 03:43:02,032 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-01-09 03:43:02,155 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-01-09 03:43:02,155 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:02,155 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:02,160 INFO L256 TraceCheckSpWp]: Trace formula consists of 1724 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 03:43:02,163 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:02,205 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-09 03:43:02,205 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:02,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1898842244] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:02,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:02,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2025-01-09 03:43:02,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044529881] [2025-01-09 03:43:02,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:02,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:43:02,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:02,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:43:02,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:43:02,206 INFO L87 Difference]: Start difference. First operand 646 states and 1055 transitions. Second operand has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-01-09 03:43:02,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:02,273 INFO L93 Difference]: Finished difference Result 1149 states and 1896 transitions. [2025-01-09 03:43:02,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:43:02,273 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 93 [2025-01-09 03:43:02,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:02,277 INFO L225 Difference]: With dead ends: 1149 [2025-01-09 03:43:02,277 INFO L226 Difference]: Without dead ends: 681 [2025-01-09 03:43:02,279 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:43:02,279 INFO L435 NwaCegarLoop]: 898 mSDtfsCounter, 95 mSDsluCounter, 4401 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 5299 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:02,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 5299 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:02,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2025-01-09 03:43:02,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 646. [2025-01-09 03:43:02,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 521 states have (on average 1.6583493282149713) internal successors, (864), 546 states have internal predecessors, (864), 96 states have call successors, (96), 25 states have call predecessors, (96), 28 states have return successors, (95), 88 states have call predecessors, (95), 91 states have call successors, (95) [2025-01-09 03:43:02,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 1055 transitions. [2025-01-09 03:43:02,297 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 1055 transitions. Word has length 93 [2025-01-09 03:43:02,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:02,297 INFO L471 AbstractCegarLoop]: Abstraction has 646 states and 1055 transitions. [2025-01-09 03:43:02,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-01-09 03:43:02,297 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 1055 transitions. [2025-01-09 03:43:02,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-01-09 03:43:02,299 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:02,299 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] [2025-01-09 03:43:02,309 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-01-09 03:43:02,499 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 [2025-01-09 03:43:02,500 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:02,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:02,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1230453059, now seen corresponding path program 1 times [2025-01-09 03:43:02,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:02,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204883915] [2025-01-09 03:43:02,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:02,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:02,509 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-01-09 03:43:02,513 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-01-09 03:43:02,513 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:02,514 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:02,554 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-01-09 03:43:02,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:02,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204883915] [2025-01-09 03:43:02,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204883915] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:02,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301100116] [2025-01-09 03:43:02,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:02,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:02,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:02,557 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) [2025-01-09 03:43:02,558 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 [2025-01-09 03:43:02,659 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-01-09 03:43:02,791 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-01-09 03:43:02,791 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:02,791 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:02,796 INFO L256 TraceCheckSpWp]: Trace formula consists of 1720 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 03:43:02,799 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:02,855 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-09 03:43:02,855 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:02,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301100116] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:02,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:02,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4] total 10 [2025-01-09 03:43:02,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551750850] [2025-01-09 03:43:02,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:02,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:43:02,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:02,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:43:02,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:43:02,857 INFO L87 Difference]: Start difference. First operand 646 states and 1055 transitions. Second operand has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-01-09 03:43:02,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:02,966 INFO L93 Difference]: Finished difference Result 1134 states and 1870 transitions. [2025-01-09 03:43:02,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 03:43:02,966 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 93 [2025-01-09 03:43:02,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:02,970 INFO L225 Difference]: With dead ends: 1134 [2025-01-09 03:43:02,970 INFO L226 Difference]: Without dead ends: 666 [2025-01-09 03:43:02,972 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:43:02,972 INFO L435 NwaCegarLoop]: 887 mSDtfsCounter, 113 mSDsluCounter, 5227 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 6114 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:02,972 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 6114 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:43:02,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2025-01-09 03:43:02,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 646. [2025-01-09 03:43:02,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 521 states have (on average 1.6583493282149713) internal successors, (864), 546 states have internal predecessors, (864), 96 states have call successors, (96), 25 states have call predecessors, (96), 28 states have return successors, (95), 88 states have call predecessors, (95), 91 states have call successors, (95) [2025-01-09 03:43:02,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 1055 transitions. [2025-01-09 03:43:02,991 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 1055 transitions. Word has length 93 [2025-01-09 03:43:02,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:02,991 INFO L471 AbstractCegarLoop]: Abstraction has 646 states and 1055 transitions. [2025-01-09 03:43:02,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.142857142857142) internal successors, (71), 7 states have internal predecessors, (71), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-01-09 03:43:02,991 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 1055 transitions. [2025-01-09 03:43:02,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-01-09 03:43:02,992 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:02,992 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-01-09 03:43:03,001 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-01-09 03:43:03,193 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 [2025-01-09 03:43:03,194 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:03,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:03,194 INFO L85 PathProgramCache]: Analyzing trace with hash -1471914537, now seen corresponding path program 1 times [2025-01-09 03:43:03,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:03,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224096341] [2025-01-09 03:43:03,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:03,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:03,209 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-01-09 03:43:03,212 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-01-09 03:43:03,213 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:03,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:03,285 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 03:43:03,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:03,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224096341] [2025-01-09 03:43:03,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224096341] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:03,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590309924] [2025-01-09 03:43:03,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:03,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:03,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:03,290 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) [2025-01-09 03:43:03,293 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 [2025-01-09 03:43:03,393 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-01-09 03:43:03,515 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-01-09 03:43:03,515 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:03,515 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:03,521 INFO L256 TraceCheckSpWp]: Trace formula consists of 1724 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:43:03,523 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:03,549 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-09 03:43:03,549 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:03,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590309924] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:03,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:03,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:43:03,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949900200] [2025-01-09 03:43:03,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:03,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:43:03,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:03,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:43:03,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:43:03,550 INFO L87 Difference]: Start difference. First operand 646 states and 1055 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 03:43:03,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:03,591 INFO L93 Difference]: Finished difference Result 1186 states and 1955 transitions. [2025-01-09 03:43:03,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:43:03,592 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 93 [2025-01-09 03:43:03,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:03,595 INFO L225 Difference]: With dead ends: 1186 [2025-01-09 03:43:03,595 INFO L226 Difference]: Without dead ends: 646 [2025-01-09 03:43:03,597 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:43:03,598 INFO L435 NwaCegarLoop]: 893 mSDtfsCounter, 13 mSDsluCounter, 1782 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2675 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 [2025-01-09 03:43:03,599 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2675 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:03,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2025-01-09 03:43:03,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 646. [2025-01-09 03:43:03,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 521 states have (on average 1.6506717850287909) internal successors, (860), 546 states have internal predecessors, (860), 96 states have call successors, (96), 25 states have call predecessors, (96), 28 states have return successors, (95), 88 states have call predecessors, (95), 91 states have call successors, (95) [2025-01-09 03:43:03,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 1051 transitions. [2025-01-09 03:43:03,616 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 1051 transitions. Word has length 93 [2025-01-09 03:43:03,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:03,616 INFO L471 AbstractCegarLoop]: Abstraction has 646 states and 1051 transitions. [2025-01-09 03:43:03,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 03:43:03,617 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 1051 transitions. [2025-01-09 03:43:03,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-01-09 03:43:03,618 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:03,618 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] [2025-01-09 03:43:03,629 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-01-09 03:43:03,819 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 [2025-01-09 03:43:03,819 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:03,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:03,819 INFO L85 PathProgramCache]: Analyzing trace with hash 779693526, now seen corresponding path program 1 times [2025-01-09 03:43:03,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:03,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714276927] [2025-01-09 03:43:03,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:03,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:03,829 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-01-09 03:43:03,833 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-01-09 03:43:03,833 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:03,833 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:03,871 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-01-09 03:43:03,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:03,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714276927] [2025-01-09 03:43:03,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714276927] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:03,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104834857] [2025-01-09 03:43:03,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:03,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:03,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:03,873 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) [2025-01-09 03:43:03,876 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 [2025-01-09 03:43:03,991 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-01-09 03:43:04,119 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-01-09 03:43:04,119 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:04,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:04,125 INFO L256 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 03:43:04,127 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:04,141 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-09 03:43:04,142 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:04,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104834857] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:04,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:04,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:43:04,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439427706] [2025-01-09 03:43:04,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:04,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:43:04,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:04,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:43:04,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:43:04,143 INFO L87 Difference]: Start difference. First operand 646 states and 1051 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 03:43:04,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:04,185 INFO L93 Difference]: Finished difference Result 1230 states and 2023 transitions. [2025-01-09 03:43:04,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:43:04,185 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 94 [2025-01-09 03:43:04,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:04,188 INFO L225 Difference]: With dead ends: 1230 [2025-01-09 03:43:04,189 INFO L226 Difference]: Without dead ends: 670 [2025-01-09 03:43:04,190 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:43:04,190 INFO L435 NwaCegarLoop]: 887 mSDtfsCounter, 7 mSDsluCounter, 1761 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2648 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 [2025-01-09 03:43:04,191 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2648 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:04,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2025-01-09 03:43:04,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 670. [2025-01-09 03:43:04,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 545 states have (on average 1.6293577981651377) internal successors, (888), 570 states have internal predecessors, (888), 96 states have call successors, (96), 25 states have call predecessors, (96), 28 states have return successors, (95), 88 states have call predecessors, (95), 91 states have call successors, (95) [2025-01-09 03:43:04,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 1079 transitions. [2025-01-09 03:43:04,205 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 1079 transitions. Word has length 94 [2025-01-09 03:43:04,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:04,205 INFO L471 AbstractCegarLoop]: Abstraction has 670 states and 1079 transitions. [2025-01-09 03:43:04,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 03:43:04,205 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 1079 transitions. [2025-01-09 03:43:04,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2025-01-09 03:43:04,207 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:04,207 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] [2025-01-09 03:43:04,215 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-01-09 03:43:04,407 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 [2025-01-09 03:43:04,407 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:04,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:04,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1629869139, now seen corresponding path program 1 times [2025-01-09 03:43:04,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:04,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4910967] [2025-01-09 03:43:04,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:04,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:04,418 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-01-09 03:43:04,422 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-01-09 03:43:04,422 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:04,422 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:04,466 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-01-09 03:43:04,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:04,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4910967] [2025-01-09 03:43:04,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4910967] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:04,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845533886] [2025-01-09 03:43:04,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:04,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:04,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:04,469 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) [2025-01-09 03:43:04,474 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 [2025-01-09 03:43:04,597 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-01-09 03:43:04,720 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-01-09 03:43:04,720 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:04,720 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:04,727 INFO L256 TraceCheckSpWp]: Trace formula consists of 1722 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 03:43:04,729 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:04,789 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-09 03:43:04,792 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:04,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845533886] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:04,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:04,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4] total 10 [2025-01-09 03:43:04,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819014395] [2025-01-09 03:43:04,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:04,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:43:04,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:04,793 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:43:04,793 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:43:04,794 INFO L87 Difference]: Start difference. First operand 670 states and 1079 transitions. Second operand has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-01-09 03:43:04,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:04,894 INFO L93 Difference]: Finished difference Result 1164 states and 1902 transitions. [2025-01-09 03:43:04,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 03:43:04,894 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 95 [2025-01-09 03:43:04,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:04,898 INFO L225 Difference]: With dead ends: 1164 [2025-01-09 03:43:04,898 INFO L226 Difference]: Without dead ends: 696 [2025-01-09 03:43:04,900 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:43:04,900 INFO L435 NwaCegarLoop]: 881 mSDtfsCounter, 119 mSDsluCounter, 5189 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 6070 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 [2025-01-09 03:43:04,900 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 6070 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:43:04,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2025-01-09 03:43:04,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 670. [2025-01-09 03:43:04,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 545 states have (on average 1.6293577981651377) internal successors, (888), 570 states have internal predecessors, (888), 96 states have call successors, (96), 25 states have call predecessors, (96), 28 states have return successors, (95), 88 states have call predecessors, (95), 91 states have call successors, (95) [2025-01-09 03:43:04,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 1079 transitions. [2025-01-09 03:43:04,915 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 1079 transitions. Word has length 95 [2025-01-09 03:43:04,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:04,915 INFO L471 AbstractCegarLoop]: Abstraction has 670 states and 1079 transitions. [2025-01-09 03:43:04,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-01-09 03:43:04,915 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 1079 transitions. [2025-01-09 03:43:04,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2025-01-09 03:43:04,917 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:04,917 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] [2025-01-09 03:43:04,926 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-01-09 03:43:05,118 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 [2025-01-09 03:43:05,118 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:05,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:05,119 INFO L85 PathProgramCache]: Analyzing trace with hash -1699515588, now seen corresponding path program 1 times [2025-01-09 03:43:05,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:05,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822985730] [2025-01-09 03:43:05,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:05,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:05,128 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-01-09 03:43:05,132 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-01-09 03:43:05,132 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:05,132 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:05,206 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 03:43:05,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:05,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822985730] [2025-01-09 03:43:05,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822985730] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:05,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939790147] [2025-01-09 03:43:05,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:05,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:05,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:05,209 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) [2025-01-09 03:43:05,216 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 [2025-01-09 03:43:05,322 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-01-09 03:43:05,441 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-01-09 03:43:05,441 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:05,441 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:05,445 INFO L256 TraceCheckSpWp]: Trace formula consists of 1725 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 03:43:05,448 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:05,749 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-01-09 03:43:05,749 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:05,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939790147] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:05,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:05,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2025-01-09 03:43:05,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203536312] [2025-01-09 03:43:05,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:05,751 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 03:43:05,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:05,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 03:43:05,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:43:05,751 INFO L87 Difference]: Start difference. First operand 670 states and 1079 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 03:43:07,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:07,506 INFO L93 Difference]: Finished difference Result 1730 states and 2872 transitions. [2025-01-09 03:43:07,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 03:43:07,506 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 95 [2025-01-09 03:43:07,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:07,513 INFO L225 Difference]: With dead ends: 1730 [2025-01-09 03:43:07,513 INFO L226 Difference]: Without dead ends: 1267 [2025-01-09 03:43:07,514 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:43:07,515 INFO L435 NwaCegarLoop]: 376 mSDtfsCounter, 3270 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 1954 mSolverCounterSat, 604 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3377 SdHoareTripleChecker+Valid, 1137 SdHoareTripleChecker+Invalid, 2558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 604 IncrementalHoareTripleChecker+Valid, 1954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:07,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3377 Valid, 1137 Invalid, 2558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [604 Valid, 1954 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-01-09 03:43:07,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2025-01-09 03:43:07,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 1151. [2025-01-09 03:43:07,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1151 states, 927 states have (on average 1.6580366774541533) internal successors, (1537), 961 states have internal predecessors, (1537), 179 states have call successors, (179), 39 states have call predecessors, (179), 44 states have return successors, (185), 163 states have call predecessors, (185), 174 states have call successors, (185) [2025-01-09 03:43:07,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1151 states to 1151 states and 1901 transitions. [2025-01-09 03:43:07,555 INFO L78 Accepts]: Start accepts. Automaton has 1151 states and 1901 transitions. Word has length 95 [2025-01-09 03:43:07,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:07,555 INFO L471 AbstractCegarLoop]: Abstraction has 1151 states and 1901 transitions. [2025-01-09 03:43:07,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (10), 4 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2025-01-09 03:43:07,555 INFO L276 IsEmpty]: Start isEmpty. Operand 1151 states and 1901 transitions. [2025-01-09 03:43:07,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2025-01-09 03:43:07,558 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:07,558 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] [2025-01-09 03:43:07,566 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-01-09 03:43:07,758 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 [2025-01-09 03:43:07,759 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:07,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:07,759 INFO L85 PathProgramCache]: Analyzing trace with hash 862973943, now seen corresponding path program 1 times [2025-01-09 03:43:07,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:07,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330999400] [2025-01-09 03:43:07,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:07,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:07,772 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-01-09 03:43:07,776 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-01-09 03:43:07,776 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:07,776 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:07,861 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 03:43:07,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:07,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330999400] [2025-01-09 03:43:07,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330999400] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:07,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103857123] [2025-01-09 03:43:07,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:07,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:07,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:07,867 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) [2025-01-09 03:43:07,868 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 [2025-01-09 03:43:07,992 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-01-09 03:43:08,157 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-01-09 03:43:08,157 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:08,157 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:08,166 INFO L256 TraceCheckSpWp]: Trace formula consists of 2017 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-09 03:43:08,172 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:08,299 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-01-09 03:43:08,299 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:08,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103857123] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:08,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:08,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4] total 10 [2025-01-09 03:43:08,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300117194] [2025-01-09 03:43:08,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:08,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:43:08,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:08,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:43:08,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:43:08,301 INFO L87 Difference]: Start difference. First operand 1151 states and 1901 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2025-01-09 03:43:10,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:10,661 INFO L93 Difference]: Finished difference Result 2967 states and 4970 transitions. [2025-01-09 03:43:10,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-09 03:43:10,662 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 123 [2025-01-09 03:43:10,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:10,673 INFO L225 Difference]: With dead ends: 2967 [2025-01-09 03:43:10,673 INFO L226 Difference]: Without dead ends: 2021 [2025-01-09 03:43:10,677 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2025-01-09 03:43:10,678 INFO L435 NwaCegarLoop]: 402 mSDtfsCounter, 1711 mSDsluCounter, 1654 mSDsCounter, 0 mSdLazyCounter, 4694 mSolverCounterSat, 236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1796 SdHoareTripleChecker+Valid, 2056 SdHoareTripleChecker+Invalid, 4930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 236 IncrementalHoareTripleChecker+Valid, 4694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:10,678 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1796 Valid, 2056 Invalid, 4930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [236 Valid, 4694 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-01-09 03:43:10,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2021 states. [2025-01-09 03:43:10,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2021 to 1852. [2025-01-09 03:43:10,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1852 states, 1476 states have (on average 1.6490514905149052) internal successors, (2434), 1520 states have internal predecessors, (2434), 301 states have call successors, (301), 58 states have call predecessors, (301), 74 states have return successors, (337), 284 states have call predecessors, (337), 296 states have call successors, (337) [2025-01-09 03:43:10,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1852 states to 1852 states and 3072 transitions. [2025-01-09 03:43:10,789 INFO L78 Accepts]: Start accepts. Automaton has 1852 states and 3072 transitions. Word has length 123 [2025-01-09 03:43:10,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:10,789 INFO L471 AbstractCegarLoop]: Abstraction has 1852 states and 3072 transitions. [2025-01-09 03:43:10,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 7 states have internal predecessors, (81), 5 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2025-01-09 03:43:10,789 INFO L276 IsEmpty]: Start isEmpty. Operand 1852 states and 3072 transitions. [2025-01-09 03:43:10,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2025-01-09 03:43:10,792 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:10,793 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] [2025-01-09 03:43:10,802 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-01-09 03:43:10,997 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 [2025-01-09 03:43:10,997 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:10,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:10,998 INFO L85 PathProgramCache]: Analyzing trace with hash 833677591, now seen corresponding path program 1 times [2025-01-09 03:43:10,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:10,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245034330] [2025-01-09 03:43:10,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:10,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:11,012 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-01-09 03:43:11,018 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-01-09 03:43:11,018 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:11,018 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:11,080 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 03:43:11,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:11,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245034330] [2025-01-09 03:43:11,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245034330] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:11,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594794541] [2025-01-09 03:43:11,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:11,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:11,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:11,089 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:43:11,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-01-09 03:43:11,216 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-01-09 03:43:11,392 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-01-09 03:43:11,392 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:11,393 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:11,399 INFO L256 TraceCheckSpWp]: Trace formula consists of 2017 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 03:43:11,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:11,417 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-01-09 03:43:11,417 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:11,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594794541] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:11,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:11,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:43:11,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557933122] [2025-01-09 03:43:11,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:11,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:43:11,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:11,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:43:11,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:43:11,419 INFO L87 Difference]: Start difference. First operand 1852 states and 3072 transitions. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:43:11,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:11,469 INFO L93 Difference]: Finished difference Result 3504 states and 5873 transitions. [2025-01-09 03:43:11,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:43:11,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2025-01-09 03:43:11,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:11,479 INFO L225 Difference]: With dead ends: 3504 [2025-01-09 03:43:11,479 INFO L226 Difference]: Without dead ends: 1860 [2025-01-09 03:43:11,485 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:43:11,485 INFO L435 NwaCegarLoop]: 901 mSDtfsCounter, 0 mSDsluCounter, 1796 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2697 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:11,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2697 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:11,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1860 states. [2025-01-09 03:43:11,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1860 to 1856. [2025-01-09 03:43:11,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1856 states, 1480 states have (on average 1.6472972972972972) internal successors, (2438), 1524 states have internal predecessors, (2438), 301 states have call successors, (301), 58 states have call predecessors, (301), 74 states have return successors, (337), 284 states have call predecessors, (337), 296 states have call successors, (337) [2025-01-09 03:43:11,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1856 states to 1856 states and 3076 transitions. [2025-01-09 03:43:11,539 INFO L78 Accepts]: Start accepts. Automaton has 1856 states and 3076 transitions. Word has length 124 [2025-01-09 03:43:11,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:11,540 INFO L471 AbstractCegarLoop]: Abstraction has 1856 states and 3076 transitions. [2025-01-09 03:43:11,540 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:43:11,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1856 states and 3076 transitions. [2025-01-09 03:43:11,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-01-09 03:43:11,543 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:11,543 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] [2025-01-09 03:43:11,555 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-01-09 03:43:11,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2025-01-09 03:43:11,745 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:11,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:11,745 INFO L85 PathProgramCache]: Analyzing trace with hash -531662119, now seen corresponding path program 1 times [2025-01-09 03:43:11,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:11,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008696405] [2025-01-09 03:43:11,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:11,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:11,756 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-01-09 03:43:11,760 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-01-09 03:43:11,760 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:11,760 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:11,810 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 03:43:11,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:11,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008696405] [2025-01-09 03:43:11,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008696405] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:11,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617797021] [2025-01-09 03:43:11,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:11,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:11,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:11,814 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:43:11,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-01-09 03:43:11,938 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-01-09 03:43:12,099 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-01-09 03:43:12,099 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:12,099 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:12,105 INFO L256 TraceCheckSpWp]: Trace formula consists of 2034 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-09 03:43:12,110 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:12,243 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-01-09 03:43:12,243 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:12,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617797021] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:12,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:12,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4] total 11 [2025-01-09 03:43:12,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057522619] [2025-01-09 03:43:12,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:12,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 03:43:12,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:12,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 03:43:12,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:43:12,245 INFO L87 Difference]: Start difference. First operand 1856 states and 3076 transitions. Second operand has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (14), 4 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2025-01-09 03:43:15,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:15,388 INFO L93 Difference]: Finished difference Result 5691 states and 9709 transitions. [2025-01-09 03:43:15,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-09 03:43:15,388 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (14), 4 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) Word has length 127 [2025-01-09 03:43:15,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:15,408 INFO L225 Difference]: With dead ends: 5691 [2025-01-09 03:43:15,409 INFO L226 Difference]: Without dead ends: 4042 [2025-01-09 03:43:15,417 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2025-01-09 03:43:15,420 INFO L435 NwaCegarLoop]: 972 mSDtfsCounter, 2920 mSDsluCounter, 3433 mSDsCounter, 0 mSdLazyCounter, 5946 mSolverCounterSat, 695 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3045 SdHoareTripleChecker+Valid, 4405 SdHoareTripleChecker+Invalid, 6641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 695 IncrementalHoareTripleChecker+Valid, 5946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:15,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3045 Valid, 4405 Invalid, 6641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [695 Valid, 5946 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2025-01-09 03:43:15,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4042 states. [2025-01-09 03:43:15,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4042 to 4007. [2025-01-09 03:43:15,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4007 states, 3156 states have (on average 1.6435361216730038) internal successors, (5187), 3247 states have internal predecessors, (5187), 686 states have call successors, (686), 112 states have call predecessors, (686), 164 states have return successors, (890), 674 states have call predecessors, (890), 681 states have call successors, (890) [2025-01-09 03:43:15,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4007 states to 4007 states and 6763 transitions. [2025-01-09 03:43:15,632 INFO L78 Accepts]: Start accepts. Automaton has 4007 states and 6763 transitions. Word has length 127 [2025-01-09 03:43:15,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:15,633 INFO L471 AbstractCegarLoop]: Abstraction has 4007 states and 6763 transitions. [2025-01-09 03:43:15,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.777777777777779) internal successors, (88), 8 states have internal predecessors, (88), 5 states have call successors, (14), 4 states have call predecessors, (14), 5 states have return successors, (13), 6 states have call predecessors, (13), 4 states have call successors, (13) [2025-01-09 03:43:15,633 INFO L276 IsEmpty]: Start isEmpty. Operand 4007 states and 6763 transitions. [2025-01-09 03:43:15,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-01-09 03:43:15,640 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:15,640 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] [2025-01-09 03:43:15,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2025-01-09 03:43:15,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2025-01-09 03:43:15,841 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:15,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:15,842 INFO L85 PathProgramCache]: Analyzing trace with hash -2123583096, now seen corresponding path program 1 times [2025-01-09 03:43:15,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:15,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238495604] [2025-01-09 03:43:15,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:15,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:15,852 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-01-09 03:43:15,856 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-01-09 03:43:15,857 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:15,857 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:15,905 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 03:43:15,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:15,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238495604] [2025-01-09 03:43:15,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238495604] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:15,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860318127] [2025-01-09 03:43:15,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:15,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:15,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:15,909 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:43:15,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-01-09 03:43:16,031 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-01-09 03:43:16,176 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-01-09 03:43:16,177 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:16,177 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:16,183 INFO L256 TraceCheckSpWp]: Trace formula consists of 2035 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 03:43:16,186 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:16,218 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-01-09 03:43:16,218 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:16,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860318127] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:16,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:16,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2025-01-09 03:43:16,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319190415] [2025-01-09 03:43:16,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:16,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:43:16,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:16,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:43:16,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:43:16,220 INFO L87 Difference]: Start difference. First operand 4007 states and 6763 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:43:16,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:16,630 INFO L93 Difference]: Finished difference Result 11189 states and 19379 transitions. [2025-01-09 03:43:16,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 03:43:16,631 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 128 [2025-01-09 03:43:16,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:16,675 INFO L225 Difference]: With dead ends: 11189 [2025-01-09 03:43:16,675 INFO L226 Difference]: Without dead ends: 7504 [2025-01-09 03:43:16,700 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:43:16,701 INFO L435 NwaCegarLoop]: 1388 mSDtfsCounter, 743 mSDsluCounter, 3497 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 754 SdHoareTripleChecker+Valid, 4885 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:16,701 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [754 Valid, 4885 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 03:43:16,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7504 states. [2025-01-09 03:43:16,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7504 to 7479. [2025-01-09 03:43:17,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7479 states, 5856 states have (on average 1.6337090163934427) internal successors, (9567), 6028 states have internal predecessors, (9567), 1295 states have call successors, (1295), 228 states have call predecessors, (1295), 327 states have return successors, (1910), 1276 states have call predecessors, (1910), 1290 states have call successors, (1910) [2025-01-09 03:43:17,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7479 states to 7479 states and 12772 transitions. [2025-01-09 03:43:17,047 INFO L78 Accepts]: Start accepts. Automaton has 7479 states and 12772 transitions. Word has length 128 [2025-01-09 03:43:17,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:17,048 INFO L471 AbstractCegarLoop]: Abstraction has 7479 states and 12772 transitions. [2025-01-09 03:43:17,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 3 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:43:17,048 INFO L276 IsEmpty]: Start isEmpty. Operand 7479 states and 12772 transitions. [2025-01-09 03:43:17,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2025-01-09 03:43:17,059 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:17,059 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] [2025-01-09 03:43:17,069 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2025-01-09 03:43:17,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2025-01-09 03:43:17,261 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:17,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:17,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1598687609, now seen corresponding path program 1 times [2025-01-09 03:43:17,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:17,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454488116] [2025-01-09 03:43:17,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:17,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:17,272 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-01-09 03:43:17,276 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-01-09 03:43:17,276 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:17,276 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:17,373 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-09 03:43:17,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:17,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454488116] [2025-01-09 03:43:17,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454488116] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:17,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [796918342] [2025-01-09 03:43:17,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:17,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:17,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:17,378 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:43:17,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-01-09 03:43:17,505 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-01-09 03:43:17,664 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-01-09 03:43:17,664 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:17,664 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:17,670 INFO L256 TraceCheckSpWp]: Trace formula consists of 2035 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 03:43:17,673 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:17,693 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-09 03:43:17,694 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:17,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [796918342] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:17,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:17,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2025-01-09 03:43:17,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894051861] [2025-01-09 03:43:17,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:17,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:43:17,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:17,694 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:43:17,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:43:17,695 INFO L87 Difference]: Start difference. First operand 7479 states and 12772 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:43:18,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:18,068 INFO L93 Difference]: Finished difference Result 14796 states and 25325 transitions. [2025-01-09 03:43:18,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:43:18,069 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 130 [2025-01-09 03:43:18,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:18,164 INFO L225 Difference]: With dead ends: 14796 [2025-01-09 03:43:18,171 INFO L226 Difference]: Without dead ends: 7515 [2025-01-09 03:43:18,226 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:43:18,231 INFO L435 NwaCegarLoop]: 886 mSDtfsCounter, 5 mSDsluCounter, 1761 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2647 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 [2025-01-09 03:43:18,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2647 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:18,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7515 states. [2025-01-09 03:43:18,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7515 to 7497. [2025-01-09 03:43:18,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7497 states, 5874 states have (on average 1.6338100102145046) internal successors, (9597), 6046 states have internal predecessors, (9597), 1295 states have call successors, (1295), 228 states have call predecessors, (1295), 327 states have return successors, (1910), 1276 states have call predecessors, (1910), 1290 states have call successors, (1910) [2025-01-09 03:43:18,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7497 states to 7497 states and 12802 transitions. [2025-01-09 03:43:18,627 INFO L78 Accepts]: Start accepts. Automaton has 7497 states and 12802 transitions. Word has length 130 [2025-01-09 03:43:18,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:18,628 INFO L471 AbstractCegarLoop]: Abstraction has 7497 states and 12802 transitions. [2025-01-09 03:43:18,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:43:18,628 INFO L276 IsEmpty]: Start isEmpty. Operand 7497 states and 12802 transitions. [2025-01-09 03:43:18,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2025-01-09 03:43:18,641 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:18,641 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] [2025-01-09 03:43:18,650 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-01-09 03:43:18,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2025-01-09 03:43:18,846 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:18,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:18,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1294192991, now seen corresponding path program 1 times [2025-01-09 03:43:18,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:18,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285539692] [2025-01-09 03:43:18,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:18,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:18,858 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-01-09 03:43:18,862 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-01-09 03:43:18,863 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:18,863 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:19,017 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-09 03:43:19,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:19,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285539692] [2025-01-09 03:43:19,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285539692] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:19,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591345424] [2025-01-09 03:43:19,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:19,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:19,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:19,020 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:43:19,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-01-09 03:43:19,147 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-01-09 03:43:19,298 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-01-09 03:43:19,299 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:19,299 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:19,308 INFO L256 TraceCheckSpWp]: Trace formula consists of 2033 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-09 03:43:19,311 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:19,375 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-09 03:43:19,375 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:19,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591345424] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:19,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:19,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-01-09 03:43:19,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920996567] [2025-01-09 03:43:19,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:19,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:43:19,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:19,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:43:19,377 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:43:19,377 INFO L87 Difference]: Start difference. First operand 7497 states and 12802 transitions. Second operand has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:43:19,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:19,636 INFO L93 Difference]: Finished difference Result 14738 states and 25220 transitions. [2025-01-09 03:43:19,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 03:43:19,636 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 131 [2025-01-09 03:43:19,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:19,674 INFO L225 Difference]: With dead ends: 14738 [2025-01-09 03:43:19,674 INFO L226 Difference]: Without dead ends: 7567 [2025-01-09 03:43:19,699 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2025-01-09 03:43:19,700 INFO L435 NwaCegarLoop]: 881 mSDtfsCounter, 89 mSDsluCounter, 5210 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 6091 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 [2025-01-09 03:43:19,700 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 6091 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:43:19,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7567 states. [2025-01-09 03:43:19,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7567 to 7500. [2025-01-09 03:43:19,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7500 states, 5876 states have (on average 1.6334240980258679) internal successors, (9598), 6049 states have internal predecessors, (9598), 1295 states have call successors, (1295), 228 states have call predecessors, (1295), 328 states have return successors, (1911), 1276 states have call predecessors, (1911), 1290 states have call successors, (1911) [2025-01-09 03:43:20,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7500 states to 7500 states and 12804 transitions. [2025-01-09 03:43:20,010 INFO L78 Accepts]: Start accepts. Automaton has 7500 states and 12804 transitions. Word has length 131 [2025-01-09 03:43:20,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:20,011 INFO L471 AbstractCegarLoop]: Abstraction has 7500 states and 12804 transitions. [2025-01-09 03:43:20,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.428571428571429) internal successors, (101), 7 states have internal predecessors, (101), 3 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:43:20,011 INFO L276 IsEmpty]: Start isEmpty. Operand 7500 states and 12804 transitions. [2025-01-09 03:43:20,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2025-01-09 03:43:20,022 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:20,023 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] [2025-01-09 03:43:20,031 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2025-01-09 03:43:20,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2025-01-09 03:43:20,227 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:20,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:20,228 INFO L85 PathProgramCache]: Analyzing trace with hash 2055810529, now seen corresponding path program 1 times [2025-01-09 03:43:20,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:20,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479468814] [2025-01-09 03:43:20,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:20,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:20,239 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-01-09 03:43:20,243 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-01-09 03:43:20,243 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:20,244 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:20,332 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-09 03:43:20,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:20,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479468814] [2025-01-09 03:43:20,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479468814] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:20,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [63909882] [2025-01-09 03:43:20,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:20,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:20,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:20,335 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:43:20,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2025-01-09 03:43:20,467 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-01-09 03:43:20,629 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-01-09 03:43:20,629 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:20,629 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:20,636 INFO L256 TraceCheckSpWp]: Trace formula consists of 2036 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 03:43:20,639 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:20,761 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-09 03:43:20,761 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:20,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [63909882] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:20,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:20,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2025-01-09 03:43:20,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822003570] [2025-01-09 03:43:20,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:20,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:43:20,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:20,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:43:20,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:43:20,763 INFO L87 Difference]: Start difference. First operand 7500 states and 12804 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2025-01-09 03:43:21,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:21,132 INFO L93 Difference]: Finished difference Result 8025 states and 13811 transitions. [2025-01-09 03:43:21,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:43:21,135 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 131 [2025-01-09 03:43:21,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:21,176 INFO L225 Difference]: With dead ends: 8025 [2025-01-09 03:43:21,176 INFO L226 Difference]: Without dead ends: 8008 [2025-01-09 03:43:21,184 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:43:21,184 INFO L435 NwaCegarLoop]: 893 mSDtfsCounter, 832 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 1640 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:21,185 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 1640 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 03:43:21,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8008 states. [2025-01-09 03:43:21,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8008 to 7532. [2025-01-09 03:43:21,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7532 states, 5908 states have (on average 1.6299932295192958) internal successors, (9630), 6081 states have internal predecessors, (9630), 1295 states have call successors, (1295), 228 states have call predecessors, (1295), 328 states have return successors, (1911), 1276 states have call predecessors, (1911), 1290 states have call successors, (1911) [2025-01-09 03:43:21,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7532 states to 7532 states and 12836 transitions. [2025-01-09 03:43:21,499 INFO L78 Accepts]: Start accepts. Automaton has 7532 states and 12836 transitions. Word has length 131 [2025-01-09 03:43:21,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:21,501 INFO L471 AbstractCegarLoop]: Abstraction has 7532 states and 12836 transitions. [2025-01-09 03:43:21,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2025-01-09 03:43:21,501 INFO L276 IsEmpty]: Start isEmpty. Operand 7532 states and 12836 transitions. [2025-01-09 03:43:21,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-01-09 03:43:21,510 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:21,510 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, 1] [2025-01-09 03:43:21,518 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2025-01-09 03:43:21,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2025-01-09 03:43:21,712 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:21,712 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:21,712 INFO L85 PathProgramCache]: Analyzing trace with hash -1754801380, now seen corresponding path program 1 times [2025-01-09 03:43:21,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:21,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132871403] [2025-01-09 03:43:21,712 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:21,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:21,723 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-01-09 03:43:21,726 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-01-09 03:43:21,727 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:21,727 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:21,810 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-09 03:43:21,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:21,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132871403] [2025-01-09 03:43:21,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132871403] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:21,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1927137447] [2025-01-09 03:43:21,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:21,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:21,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:21,812 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:43:21,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2025-01-09 03:43:21,940 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-01-09 03:43:22,099 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-01-09 03:43:22,099 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:22,099 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:22,106 INFO L256 TraceCheckSpWp]: Trace formula consists of 2052 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 03:43:22,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:22,186 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-09 03:43:22,186 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:22,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1927137447] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:22,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:22,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2025-01-09 03:43:22,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429341849] [2025-01-09 03:43:22,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:22,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 03:43:22,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:22,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 03:43:22,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:43:22,188 INFO L87 Difference]: Start difference. First operand 7532 states and 12836 transitions. Second operand has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 03:43:22,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:22,837 INFO L93 Difference]: Finished difference Result 8206 states and 13968 transitions. [2025-01-09 03:43:22,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:43:22,837 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) Word has length 137 [2025-01-09 03:43:22,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:22,885 INFO L225 Difference]: With dead ends: 8206 [2025-01-09 03:43:22,885 INFO L226 Difference]: Without dead ends: 8189 [2025-01-09 03:43:22,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:43:22,895 INFO L435 NwaCegarLoop]: 900 mSDtfsCounter, 850 mSDsluCounter, 2649 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 3549 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:22,895 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 3549 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 03:43:22,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8189 states. [2025-01-09 03:43:23,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8189 to 8136. [2025-01-09 03:43:23,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8136 states, 6380 states have (on average 1.6178683385579937) internal successors, (10322), 6553 states have internal predecessors, (10322), 1387 states have call successors, (1387), 268 states have call predecessors, (1387), 368 states have return successors, (2135), 1368 states have call predecessors, (2135), 1382 states have call successors, (2135) [2025-01-09 03:43:23,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8136 states to 8136 states and 13844 transitions. [2025-01-09 03:43:23,354 INFO L78 Accepts]: Start accepts. Automaton has 8136 states and 13844 transitions. Word has length 137 [2025-01-09 03:43:23,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:23,355 INFO L471 AbstractCegarLoop]: Abstraction has 8136 states and 13844 transitions. [2025-01-09 03:43:23,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 3 states have call successors, (15), 3 states have call predecessors, (15), 4 states have return successors, (14), 4 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 03:43:23,355 INFO L276 IsEmpty]: Start isEmpty. Operand 8136 states and 13844 transitions. [2025-01-09 03:43:23,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2025-01-09 03:43:23,368 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:23,368 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, 1, 1, 1, 1, 1, 1] [2025-01-09 03:43:23,381 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2025-01-09 03:43:23,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-01-09 03:43:23,569 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:23,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:23,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1970886890, now seen corresponding path program 1 times [2025-01-09 03:43:23,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:23,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063722339] [2025-01-09 03:43:23,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:23,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:23,586 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-01-09 03:43:23,591 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-01-09 03:43:23,591 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:23,591 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:23,770 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-01-09 03:43:23,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:23,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063722339] [2025-01-09 03:43:23,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063722339] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:23,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098640476] [2025-01-09 03:43:23,771 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:23,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:23,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:23,773 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:43:23,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2025-01-09 03:43:23,922 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-01-09 03:43:24,109 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-01-09 03:43:24,109 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:24,109 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:24,117 INFO L256 TraceCheckSpWp]: Trace formula consists of 2089 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-09 03:43:24,120 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:24,140 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-09 03:43:24,140 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:24,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098640476] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:24,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:24,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 7 [2025-01-09 03:43:24,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721603011] [2025-01-09 03:43:24,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:24,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:43:24,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:24,141 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:43:24,142 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:43:24,142 INFO L87 Difference]: Start difference. First operand 8136 states and 13844 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, (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) [2025-01-09 03:43:24,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:24,516 INFO L93 Difference]: Finished difference Result 16127 states and 27481 transitions. [2025-01-09 03:43:24,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:43:24,517 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, (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 148 [2025-01-09 03:43:24,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:24,550 INFO L225 Difference]: With dead ends: 16127 [2025-01-09 03:43:24,550 INFO L226 Difference]: Without dead ends: 8216 [2025-01-09 03:43:24,573 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:43:24,573 INFO L435 NwaCegarLoop]: 892 mSDtfsCounter, 119 mSDsluCounter, 4358 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 5250 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:24,573 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 5250 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:24,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8216 states. [2025-01-09 03:43:24,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8216 to 8136. [2025-01-09 03:43:24,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8136 states, 6380 states have (on average 1.6178683385579937) internal successors, (10322), 6553 states have internal predecessors, (10322), 1387 states have call successors, (1387), 268 states have call predecessors, (1387), 368 states have return successors, (2135), 1368 states have call predecessors, (2135), 1382 states have call successors, (2135) [2025-01-09 03:43:24,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8136 states to 8136 states and 13844 transitions. [2025-01-09 03:43:24,839 INFO L78 Accepts]: Start accepts. Automaton has 8136 states and 13844 transitions. Word has length 148 [2025-01-09 03:43:24,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:24,839 INFO L471 AbstractCegarLoop]: Abstraction has 8136 states and 13844 transitions. [2025-01-09 03:43:24,840 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, (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) [2025-01-09 03:43:24,840 INFO L276 IsEmpty]: Start isEmpty. Operand 8136 states and 13844 transitions. [2025-01-09 03:43:24,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2025-01-09 03:43:24,851 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:24,851 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, 1] [2025-01-09 03:43:24,862 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2025-01-09 03:43:25,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2025-01-09 03:43:25,055 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:25,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:25,056 INFO L85 PathProgramCache]: Analyzing trace with hash 2031239221, now seen corresponding path program 1 times [2025-01-09 03:43:25,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:25,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961473049] [2025-01-09 03:43:25,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:25,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:25,068 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-01-09 03:43:25,072 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-01-09 03:43:25,072 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:25,072 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:25,119 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-01-09 03:43:25,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:25,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961473049] [2025-01-09 03:43:25,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961473049] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:25,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305042773] [2025-01-09 03:43:25,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:25,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:25,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:25,126 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:43:25,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2025-01-09 03:43:25,252 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-01-09 03:43:25,407 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-01-09 03:43:25,407 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:25,407 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:25,414 INFO L256 TraceCheckSpWp]: Trace formula consists of 2090 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 03:43:25,417 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:25,434 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-09 03:43:25,435 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:25,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305042773] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:25,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:25,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2025-01-09 03:43:25,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559126202] [2025-01-09 03:43:25,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:25,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:43:25,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:25,436 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:43:25,436 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:43:25,436 INFO L87 Difference]: Start difference. First operand 8136 states and 13844 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), 2 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2025-01-09 03:43:25,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:25,683 INFO L93 Difference]: Finished difference Result 16134 states and 27490 transitions. [2025-01-09 03:43:25,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:43:25,684 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), 2 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 148 [2025-01-09 03:43:25,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:25,724 INFO L225 Difference]: With dead ends: 16134 [2025-01-09 03:43:25,725 INFO L226 Difference]: Without dead ends: 7966 [2025-01-09 03:43:25,754 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:43:25,758 INFO L435 NwaCegarLoop]: 895 mSDtfsCounter, 7 mSDsluCounter, 1783 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2678 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 [2025-01-09 03:43:25,758 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2678 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:25,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7966 states. [2025-01-09 03:43:26,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7966 to 7966. [2025-01-09 03:43:26,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7966 states, 6225 states have (on average 1.619437751004016) internal successors, (10081), 6392 states have internal predecessors, (10081), 1382 states have call successors, (1382), 265 states have call predecessors, (1382), 358 states have return successors, (2121), 1362 states have call predecessors, (2121), 1377 states have call successors, (2121) [2025-01-09 03:43:26,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7966 states to 7966 states and 13584 transitions. [2025-01-09 03:43:26,093 INFO L78 Accepts]: Start accepts. Automaton has 7966 states and 13584 transitions. Word has length 148 [2025-01-09 03:43:26,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:26,093 INFO L471 AbstractCegarLoop]: Abstraction has 7966 states and 13584 transitions. [2025-01-09 03:43:26,093 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), 2 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2025-01-09 03:43:26,093 INFO L276 IsEmpty]: Start isEmpty. Operand 7966 states and 13584 transitions. [2025-01-09 03:43:26,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2025-01-09 03:43:26,101 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:26,101 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] [2025-01-09 03:43:26,112 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2025-01-09 03:43:26,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2025-01-09 03:43:26,302 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:26,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:26,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1000329819, now seen corresponding path program 1 times [2025-01-09 03:43:26,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:26,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407629634] [2025-01-09 03:43:26,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:26,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:26,316 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes. [2025-01-09 03:43:26,321 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements. [2025-01-09 03:43:26,321 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:26,321 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:26,394 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-01-09 03:43:26,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:26,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407629634] [2025-01-09 03:43:26,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407629634] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:26,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024069779] [2025-01-09 03:43:26,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:26,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:26,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:26,397 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:43:26,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2025-01-09 03:43:26,525 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes. [2025-01-09 03:43:26,692 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements. [2025-01-09 03:43:26,693 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:26,693 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:26,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 2095 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:43:26,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:26,731 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-09 03:43:26,731 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:26,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024069779] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:26,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:26,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2025-01-09 03:43:26,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054601035] [2025-01-09 03:43:26,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:26,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:43:26,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:26,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:43:26,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:43:26,737 INFO L87 Difference]: Start difference. First operand 7966 states and 13584 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, (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) [2025-01-09 03:43:26,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:26,991 INFO L93 Difference]: Finished difference Result 15934 states and 27181 transitions. [2025-01-09 03:43:26,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:43:26,992 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, (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 150 [2025-01-09 03:43:26,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:27,048 INFO L225 Difference]: With dead ends: 15934 [2025-01-09 03:43:27,049 INFO L226 Difference]: Without dead ends: 7999 [2025-01-09 03:43:27,082 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:43:27,083 INFO L435 NwaCegarLoop]: 878 mSDtfsCounter, 128 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 2557 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 [2025-01-09 03:43:27,083 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 2557 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:43:27,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7999 states. [2025-01-09 03:43:27,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7999 to 7966. [2025-01-09 03:43:27,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7966 states, 6225 states have (on average 1.619277108433735) internal successors, (10080), 6392 states have internal predecessors, (10080), 1382 states have call successors, (1382), 265 states have call predecessors, (1382), 358 states have return successors, (2121), 1362 states have call predecessors, (2121), 1377 states have call successors, (2121) [2025-01-09 03:43:27,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7966 states to 7966 states and 13583 transitions. [2025-01-09 03:43:27,437 INFO L78 Accepts]: Start accepts. Automaton has 7966 states and 13583 transitions. Word has length 150 [2025-01-09 03:43:27,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:27,437 INFO L471 AbstractCegarLoop]: Abstraction has 7966 states and 13583 transitions. [2025-01-09 03:43:27,438 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, (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) [2025-01-09 03:43:27,438 INFO L276 IsEmpty]: Start isEmpty. Operand 7966 states and 13583 transitions. [2025-01-09 03:43:27,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2025-01-09 03:43:27,446 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:27,446 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] [2025-01-09 03:43:27,459 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2025-01-09 03:43:27,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,31 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:27,647 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:27,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:27,648 INFO L85 PathProgramCache]: Analyzing trace with hash 8251025, now seen corresponding path program 1 times [2025-01-09 03:43:27,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:27,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918405695] [2025-01-09 03:43:27,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:27,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:27,659 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 151 statements into 1 equivalence classes. [2025-01-09 03:43:27,670 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 151 of 151 statements. [2025-01-09 03:43:27,670 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:27,670 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:27,766 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-01-09 03:43:27,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:27,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918405695] [2025-01-09 03:43:27,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918405695] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:27,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:43:27,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 03:43:27,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659177078] [2025-01-09 03:43:27,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:27,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:43:27,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:27,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:43:27,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:43:27,768 INFO L87 Difference]: Start difference. First operand 7966 states and 13583 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, (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) [2025-01-09 03:43:27,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:27,998 INFO L93 Difference]: Finished difference Result 11437 states and 19415 transitions. [2025-01-09 03:43:27,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:43:27,999 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, (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 151 [2025-01-09 03:43:27,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:28,040 INFO L225 Difference]: With dead ends: 11437 [2025-01-09 03:43:28,040 INFO L226 Difference]: Without dead ends: 8001 [2025-01-09 03:43:28,057 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 [2025-01-09 03:43:28,058 INFO L435 NwaCegarLoop]: 891 mSDtfsCounter, 115 mSDsluCounter, 4353 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 5244 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:28,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 5244 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:28,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8001 states. [2025-01-09 03:43:28,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8001 to 7966. [2025-01-09 03:43:28,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7966 states, 6225 states have (on average 1.619277108433735) internal successors, (10080), 6392 states have internal predecessors, (10080), 1382 states have call successors, (1382), 265 states have call predecessors, (1382), 358 states have return successors, (2121), 1362 states have call predecessors, (2121), 1377 states have call successors, (2121) [2025-01-09 03:43:28,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7966 states to 7966 states and 13583 transitions. [2025-01-09 03:43:28,333 INFO L78 Accepts]: Start accepts. Automaton has 7966 states and 13583 transitions. Word has length 151 [2025-01-09 03:43:28,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:28,333 INFO L471 AbstractCegarLoop]: Abstraction has 7966 states and 13583 transitions. [2025-01-09 03:43:28,333 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, (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) [2025-01-09 03:43:28,333 INFO L276 IsEmpty]: Start isEmpty. Operand 7966 states and 13583 transitions. [2025-01-09 03:43:28,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2025-01-09 03:43:28,343 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:28,343 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:43:28,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-01-09 03:43:28,343 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:28,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:28,343 INFO L85 PathProgramCache]: Analyzing trace with hash 22745540, now seen corresponding path program 1 times [2025-01-09 03:43:28,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:28,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152578607] [2025-01-09 03:43:28,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:28,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:28,355 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 151 statements into 1 equivalence classes. [2025-01-09 03:43:28,360 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 151 of 151 statements. [2025-01-09 03:43:28,360 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:28,360 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:28,407 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-01-09 03:43:28,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:28,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152578607] [2025-01-09 03:43:28,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152578607] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:28,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:43:28,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:43:28,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691075125] [2025-01-09 03:43:28,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:28,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:43:28,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:28,408 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:43:28,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:43:28,408 INFO L87 Difference]: Start difference. First operand 7966 states and 13583 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) [2025-01-09 03:43:28,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:28,663 INFO L93 Difference]: Finished difference Result 11486 states and 19497 transitions. [2025-01-09 03:43:28,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:43:28,664 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 151 [2025-01-09 03:43:28,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:28,686 INFO L225 Difference]: With dead ends: 11486 [2025-01-09 03:43:28,687 INFO L226 Difference]: Without dead ends: 3535 [2025-01-09 03:43:28,716 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 [2025-01-09 03:43:28,716 INFO L435 NwaCegarLoop]: 893 mSDtfsCounter, 8 mSDsluCounter, 1782 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2675 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 [2025-01-09 03:43:28,716 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2675 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:28,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3535 states. [2025-01-09 03:43:28,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3535 to 3535. [2025-01-09 03:43:28,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3535 states, 2784 states have (on average 1.6235632183908046) internal successors, (4520), 2859 states have internal predecessors, (4520), 589 states have call successors, (589), 136 states have call predecessors, (589), 161 states have return successors, (795), 561 states have call predecessors, (795), 584 states have call successors, (795) [2025-01-09 03:43:28,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3535 states to 3535 states and 5904 transitions. [2025-01-09 03:43:28,895 INFO L78 Accepts]: Start accepts. Automaton has 3535 states and 5904 transitions. Word has length 151 [2025-01-09 03:43:28,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:28,895 INFO L471 AbstractCegarLoop]: Abstraction has 3535 states and 5904 transitions. [2025-01-09 03:43:28,895 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) [2025-01-09 03:43:28,895 INFO L276 IsEmpty]: Start isEmpty. Operand 3535 states and 5904 transitions. [2025-01-09 03:43:28,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2025-01-09 03:43:28,900 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:28,900 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] [2025-01-09 03:43:28,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2025-01-09 03:43:28,900 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:28,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:28,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1578728906, now seen corresponding path program 1 times [2025-01-09 03:43:28,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:28,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775295272] [2025-01-09 03:43:28,901 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:28,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:28,917 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 152 statements into 1 equivalence classes. [2025-01-09 03:43:28,929 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 152 of 152 statements. [2025-01-09 03:43:28,929 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:28,929 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:29,103 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-01-09 03:43:29,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:29,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775295272] [2025-01-09 03:43:29,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775295272] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:29,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:43:29,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 03:43:29,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696622134] [2025-01-09 03:43:29,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:29,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:43:29,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:29,105 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:43:29,105 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:43:29,105 INFO L87 Difference]: Start difference. First operand 3535 states and 5904 transitions. Second operand has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 5 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2025-01-09 03:43:31,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:31,394 INFO L93 Difference]: Finished difference Result 12293 states and 21133 transitions. [2025-01-09 03:43:31,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-09 03:43:31,395 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 5 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 152 [2025-01-09 03:43:31,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:31,435 INFO L225 Difference]: With dead ends: 12293 [2025-01-09 03:43:31,435 INFO L226 Difference]: Without dead ends: 8868 [2025-01-09 03:43:31,453 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2025-01-09 03:43:31,454 INFO L435 NwaCegarLoop]: 420 mSDtfsCounter, 2381 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 3673 mSolverCounterSat, 500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2460 SdHoareTripleChecker+Valid, 1981 SdHoareTripleChecker+Invalid, 4173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 500 IncrementalHoareTripleChecker+Valid, 3673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:31,455 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2460 Valid, 1981 Invalid, 4173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [500 Valid, 3673 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-01-09 03:43:31,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8868 states. [2025-01-09 03:43:31,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8868 to 8071. [2025-01-09 03:43:31,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8071 states, 6355 states have (on average 1.6352478363493312) internal successors, (10392), 6549 states have internal predecessors, (10392), 1322 states have call successors, (1322), 290 states have call predecessors, (1322), 393 states have return successors, (1905), 1275 states have call predecessors, (1905), 1317 states have call successors, (1905) [2025-01-09 03:43:31,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8071 states to 8071 states and 13619 transitions. [2025-01-09 03:43:31,878 INFO L78 Accepts]: Start accepts. Automaton has 8071 states and 13619 transitions. Word has length 152 [2025-01-09 03:43:31,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:31,893 INFO L471 AbstractCegarLoop]: Abstraction has 8071 states and 13619 transitions. [2025-01-09 03:43:31,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.142857142857142) internal successors, (106), 7 states have internal predecessors, (106), 5 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2025-01-09 03:43:31,893 INFO L276 IsEmpty]: Start isEmpty. Operand 8071 states and 13619 transitions. [2025-01-09 03:43:31,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2025-01-09 03:43:31,901 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:31,902 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, 1, 1, 1] [2025-01-09 03:43:31,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2025-01-09 03:43:31,902 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:31,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:31,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1130486968, now seen corresponding path program 1 times [2025-01-09 03:43:31,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:31,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743921693] [2025-01-09 03:43:31,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:31,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:31,928 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 157 statements into 1 equivalence classes. [2025-01-09 03:43:31,950 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 157 of 157 statements. [2025-01-09 03:43:31,950 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:31,950 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:32,072 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-01-09 03:43:32,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:32,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743921693] [2025-01-09 03:43:32,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743921693] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:32,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:43:32,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 03:43:32,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462558294] [2025-01-09 03:43:32,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:32,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:43:32,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:32,077 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:43:32,077 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:43:32,077 INFO L87 Difference]: Start difference. First operand 8071 states and 13619 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 03:43:32,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:32,443 INFO L93 Difference]: Finished difference Result 16150 states and 27578 transitions. [2025-01-09 03:43:32,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:43:32,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 157 [2025-01-09 03:43:32,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:32,481 INFO L225 Difference]: With dead ends: 16150 [2025-01-09 03:43:32,481 INFO L226 Difference]: Without dead ends: 8189 [2025-01-09 03:43:32,506 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:43:32,507 INFO L435 NwaCegarLoop]: 860 mSDtfsCounter, 0 mSDsluCounter, 2550 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3410 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:32,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3410 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:43:32,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8189 states. [2025-01-09 03:43:32,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8189 to 8165. [2025-01-09 03:43:32,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8165 states, 6435 states have (on average 1.6264180264180264) internal successors, (10466), 6613 states have internal predecessors, (10466), 1316 states have call successors, (1316), 290 states have call predecessors, (1316), 413 states have return successors, (1989), 1305 states have call predecessors, (1989), 1311 states have call successors, (1989) [2025-01-09 03:43:32,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8165 states to 8165 states and 13771 transitions. [2025-01-09 03:43:32,849 INFO L78 Accepts]: Start accepts. Automaton has 8165 states and 13771 transitions. Word has length 157 [2025-01-09 03:43:32,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:32,850 INFO L471 AbstractCegarLoop]: Abstraction has 8165 states and 13771 transitions. [2025-01-09 03:43:32,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 03:43:32,850 INFO L276 IsEmpty]: Start isEmpty. Operand 8165 states and 13771 transitions. [2025-01-09 03:43:32,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2025-01-09 03:43:32,854 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:32,854 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, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:43:32,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2025-01-09 03:43:32,859 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:32,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:32,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1622207136, now seen corresponding path program 1 times [2025-01-09 03:43:32,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:32,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501624472] [2025-01-09 03:43:32,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:32,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:32,891 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 161 statements into 1 equivalence classes. [2025-01-09 03:43:32,952 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 161 of 161 statements. [2025-01-09 03:43:32,955 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:32,956 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:33,192 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-01-09 03:43:33,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:33,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501624472] [2025-01-09 03:43:33,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501624472] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:33,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:43:33,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 03:43:33,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50413569] [2025-01-09 03:43:33,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:33,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:43:33,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:33,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:43:33,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:43:33,195 INFO L87 Difference]: Start difference. First operand 8165 states and 13771 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 7 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) [2025-01-09 03:43:35,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:35,917 INFO L93 Difference]: Finished difference Result 25704 states and 44413 transitions. [2025-01-09 03:43:35,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:43:35,918 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 7 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) Word has length 161 [2025-01-09 03:43:35,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:35,994 INFO L225 Difference]: With dead ends: 25704 [2025-01-09 03:43:35,994 INFO L226 Difference]: Without dead ends: 17629 [2025-01-09 03:43:36,024 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:43:36,025 INFO L435 NwaCegarLoop]: 621 mSDtfsCounter, 5510 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 2854 mSolverCounterSat, 1396 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5657 SdHoareTripleChecker+Valid, 1486 SdHoareTripleChecker+Invalid, 4250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1396 IncrementalHoareTripleChecker+Valid, 2854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:36,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5657 Valid, 1486 Invalid, 4250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1396 Valid, 2854 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-01-09 03:43:36,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17629 states. [2025-01-09 03:43:36,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17629 to 17563. [2025-01-09 03:43:36,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17563 states, 13704 states have (on average 1.612521891418564) internal successors, (22098), 14105 states have internal predecessors, (22098), 2937 states have call successors, (2937), 638 states have call predecessors, (2937), 921 states have return successors, (4945), 2929 states have call predecessors, (4945), 2932 states have call successors, (4945) [2025-01-09 03:43:36,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17563 states to 17563 states and 29980 transitions. [2025-01-09 03:43:36,852 INFO L78 Accepts]: Start accepts. Automaton has 17563 states and 29980 transitions. Word has length 161 [2025-01-09 03:43:36,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:36,852 INFO L471 AbstractCegarLoop]: Abstraction has 17563 states and 29980 transitions. [2025-01-09 03:43:36,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 7 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) [2025-01-09 03:43:36,853 INFO L276 IsEmpty]: Start isEmpty. Operand 17563 states and 29980 transitions. [2025-01-09 03:43:36,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-01-09 03:43:36,856 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:36,857 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:43:36,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2025-01-09 03:43:36,857 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:36,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:36,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1925203790, now seen corresponding path program 1 times [2025-01-09 03:43:36,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:36,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487028621] [2025-01-09 03:43:36,858 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:36,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:36,870 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-01-09 03:43:36,881 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-01-09 03:43:36,882 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:36,882 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:37,121 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-01-09 03:43:37,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:37,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487028621] [2025-01-09 03:43:37,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487028621] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:37,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925030588] [2025-01-09 03:43:37,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:37,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:37,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:37,128 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:43:37,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2025-01-09 03:43:37,268 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-01-09 03:43:37,432 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-01-09 03:43:37,433 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:37,433 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:37,438 INFO L256 TraceCheckSpWp]: Trace formula consists of 2127 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:43:37,441 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:37,494 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-01-09 03:43:37,494 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:37,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925030588] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:37,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:37,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2025-01-09 03:43:37,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312529215] [2025-01-09 03:43:37,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:37,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:43:37,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:37,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:43:37,496 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:43:37,496 INFO L87 Difference]: Start difference. First operand 17563 states and 29980 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 03:43:38,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:38,310 INFO L93 Difference]: Finished difference Result 35182 states and 62005 transitions. [2025-01-09 03:43:38,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:43:38,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 164 [2025-01-09 03:43:38,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:38,390 INFO L225 Difference]: With dead ends: 35182 [2025-01-09 03:43:38,390 INFO L226 Difference]: Without dead ends: 17795 [2025-01-09 03:43:38,445 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:43:38,446 INFO L435 NwaCegarLoop]: 935 mSDtfsCounter, 257 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 2504 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:38,446 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 2504 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:43:38,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17795 states. [2025-01-09 03:43:39,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17795 to 17579. [2025-01-09 03:43:39,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17579 states, 13712 states have (on average 1.596120186697783) internal successors, (21886), 14121 states have internal predecessors, (21886), 2937 states have call successors, (2937), 638 states have call predecessors, (2937), 929 states have return successors, (4969), 2929 states have call predecessors, (4969), 2932 states have call successors, (4969) [2025-01-09 03:43:39,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17579 states to 17579 states and 29792 transitions. [2025-01-09 03:43:39,329 INFO L78 Accepts]: Start accepts. Automaton has 17579 states and 29792 transitions. Word has length 164 [2025-01-09 03:43:39,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:39,330 INFO L471 AbstractCegarLoop]: Abstraction has 17579 states and 29792 transitions. [2025-01-09 03:43:39,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 03:43:39,330 INFO L276 IsEmpty]: Start isEmpty. Operand 17579 states and 29792 transitions. [2025-01-09 03:43:39,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2025-01-09 03:43:39,334 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:39,334 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2025-01-09 03:43:39,343 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2025-01-09 03:43:39,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2025-01-09 03:43:39,535 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:39,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:39,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1126233004, now seen corresponding path program 1 times [2025-01-09 03:43:39,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:39,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935266147] [2025-01-09 03:43:39,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:39,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:39,553 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-01-09 03:43:39,566 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-01-09 03:43:39,566 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:39,566 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:39,740 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-09 03:43:39,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:39,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935266147] [2025-01-09 03:43:39,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935266147] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:39,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768217393] [2025-01-09 03:43:39,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:39,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:39,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:39,743 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:43:39,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2025-01-09 03:43:39,884 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-01-09 03:43:40,029 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-01-09 03:43:40,030 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:40,030 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:40,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 2143 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:43:40,039 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:40,069 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-01-09 03:43:40,069 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:40,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768217393] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:40,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:40,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2025-01-09 03:43:40,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928093208] [2025-01-09 03:43:40,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:40,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:43:40,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:40,071 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:43:40,071 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:43:40,071 INFO L87 Difference]: Start difference. First operand 17579 states and 29792 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 03:43:40,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:40,843 INFO L93 Difference]: Finished difference Result 35308 states and 61358 transitions. [2025-01-09 03:43:40,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:43:40,843 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 168 [2025-01-09 03:43:40,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:40,938 INFO L225 Difference]: With dead ends: 35308 [2025-01-09 03:43:40,938 INFO L226 Difference]: Without dead ends: 17751 [2025-01-09 03:43:41,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:43:41,005 INFO L435 NwaCegarLoop]: 838 mSDtfsCounter, 14 mSDsluCounter, 1642 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2480 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:41,006 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2480 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:43:41,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17751 states. [2025-01-09 03:43:41,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17751 to 17751. [2025-01-09 03:43:41,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17751 states, 13852 states have (on average 1.580277216286457) internal successors, (21890), 14275 states have internal predecessors, (21890), 2937 states have call successors, (2937), 656 states have call predecessors, (2937), 961 states have return successors, (5001), 2929 states have call predecessors, (5001), 2932 states have call successors, (5001) [2025-01-09 03:43:41,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17751 states to 17751 states and 29828 transitions. [2025-01-09 03:43:41,794 INFO L78 Accepts]: Start accepts. Automaton has 17751 states and 29828 transitions. Word has length 168 [2025-01-09 03:43:41,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:41,794 INFO L471 AbstractCegarLoop]: Abstraction has 17751 states and 29828 transitions. [2025-01-09 03:43:41,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 03:43:41,795 INFO L276 IsEmpty]: Start isEmpty. Operand 17751 states and 29828 transitions. [2025-01-09 03:43:41,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2025-01-09 03:43:41,802 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:41,802 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 03:43:41,812 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2025-01-09 03:43:42,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2025-01-09 03:43:42,003 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:42,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:42,004 INFO L85 PathProgramCache]: Analyzing trace with hash -534571677, now seen corresponding path program 1 times [2025-01-09 03:43:42,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:42,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239790584] [2025-01-09 03:43:42,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:42,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:42,021 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-01-09 03:43:42,033 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-01-09 03:43:42,033 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:42,033 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:42,237 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-01-09 03:43:42,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:42,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239790584] [2025-01-09 03:43:42,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239790584] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:42,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:43:42,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 03:43:42,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61413037] [2025-01-09 03:43:42,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:42,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:43:42,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:42,238 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:43:42,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:43:42,238 INFO L87 Difference]: Start difference. First operand 17751 states and 29828 transitions. Second operand has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 5 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2025-01-09 03:43:44,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:44,988 INFO L93 Difference]: Finished difference Result 35912 states and 61536 transitions. [2025-01-09 03:43:44,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-09 03:43:44,989 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 5 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) Word has length 169 [2025-01-09 03:43:44,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:45,139 INFO L225 Difference]: With dead ends: 35912 [2025-01-09 03:43:45,139 INFO L226 Difference]: Without dead ends: 20527 [2025-01-09 03:43:45,211 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2025-01-09 03:43:45,211 INFO L435 NwaCegarLoop]: 380 mSDtfsCounter, 2066 mSDsluCounter, 1344 mSDsCounter, 0 mSdLazyCounter, 3175 mSolverCounterSat, 480 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2142 SdHoareTripleChecker+Valid, 1724 SdHoareTripleChecker+Invalid, 3655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 480 IncrementalHoareTripleChecker+Valid, 3175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:45,213 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2142 Valid, 1724 Invalid, 3655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [480 Valid, 3175 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-01-09 03:43:45,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20527 states. [2025-01-09 03:43:45,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20527 to 18409. [2025-01-09 03:43:46,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18409 states, 14338 states have (on average 1.5714883526293766) internal successors, (22532), 14801 states have internal predecessors, (22532), 3003 states have call successors, (3003), 716 states have call predecessors, (3003), 1067 states have return successors, (5315), 3001 states have call predecessors, (5315), 2998 states have call successors, (5315) [2025-01-09 03:43:46,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18409 states to 18409 states and 30850 transitions. [2025-01-09 03:43:46,096 INFO L78 Accepts]: Start accepts. Automaton has 18409 states and 30850 transitions. Word has length 169 [2025-01-09 03:43:46,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:46,096 INFO L471 AbstractCegarLoop]: Abstraction has 18409 states and 30850 transitions. [2025-01-09 03:43:46,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.714285714285715) internal successors, (117), 7 states have internal predecessors, (117), 5 states have call successors, (18), 3 states have call predecessors, (18), 3 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2025-01-09 03:43:46,098 INFO L276 IsEmpty]: Start isEmpty. Operand 18409 states and 30850 transitions. [2025-01-09 03:43:46,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2025-01-09 03:43:46,101 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:46,101 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:43:46,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2025-01-09 03:43:46,101 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:46,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:46,102 INFO L85 PathProgramCache]: Analyzing trace with hash -772877701, now seen corresponding path program 1 times [2025-01-09 03:43:46,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:46,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899277964] [2025-01-09 03:43:46,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:46,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:46,120 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 174 statements into 1 equivalence classes. [2025-01-09 03:43:46,129 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 174 of 174 statements. [2025-01-09 03:43:46,130 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:46,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:46,316 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-01-09 03:43:46,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:46,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899277964] [2025-01-09 03:43:46,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899277964] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:46,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:43:46,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 03:43:46,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864644221] [2025-01-09 03:43:46,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:46,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:43:46,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:46,317 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:43:46,317 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:43:46,317 INFO L87 Difference]: Start difference. First operand 18409 states and 30850 transitions. Second operand has 8 states, 8 states have (on average 15.0) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 3 states have call successors, (18) [2025-01-09 03:43:48,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:48,172 INFO L93 Difference]: Finished difference Result 36840 states and 62014 transitions. [2025-01-09 03:43:48,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 03:43:48,173 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 15.0) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 3 states have call successors, (18) Word has length 174 [2025-01-09 03:43:48,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:48,262 INFO L225 Difference]: With dead ends: 36840 [2025-01-09 03:43:48,262 INFO L226 Difference]: Without dead ends: 18537 [2025-01-09 03:43:48,309 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:43:48,309 INFO L435 NwaCegarLoop]: 413 mSDtfsCounter, 1254 mSDsluCounter, 1343 mSDsCounter, 0 mSdLazyCounter, 2576 mSolverCounterSat, 340 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 1756 SdHoareTripleChecker+Invalid, 2916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 340 IncrementalHoareTripleChecker+Valid, 2576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:48,309 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1254 Valid, 1756 Invalid, 2916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [340 Valid, 2576 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-01-09 03:43:48,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18537 states. [2025-01-09 03:43:49,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18537 to 18445. [2025-01-09 03:43:49,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18445 states, 14356 states have (on average 1.563527444970744) internal successors, (22446), 14837 states have internal predecessors, (22446), 3003 states have call successors, (3003), 716 states have call predecessors, (3003), 1085 states have return successors, (5459), 3001 states have call predecessors, (5459), 2998 states have call successors, (5459) [2025-01-09 03:43:49,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18445 states to 18445 states and 30908 transitions. [2025-01-09 03:43:49,283 INFO L78 Accepts]: Start accepts. Automaton has 18445 states and 30908 transitions. Word has length 174 [2025-01-09 03:43:49,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:49,288 INFO L471 AbstractCegarLoop]: Abstraction has 18445 states and 30908 transitions. [2025-01-09 03:43:49,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 15.0) internal successors, (120), 7 states have internal predecessors, (120), 4 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 3 states have call successors, (18) [2025-01-09 03:43:49,289 INFO L276 IsEmpty]: Start isEmpty. Operand 18445 states and 30908 transitions. [2025-01-09 03:43:49,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2025-01-09 03:43:49,301 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:49,302 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:43:49,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2025-01-09 03:43:49,302 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:49,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:49,302 INFO L85 PathProgramCache]: Analyzing trace with hash -402784745, now seen corresponding path program 1 times [2025-01-09 03:43:49,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:49,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36217528] [2025-01-09 03:43:49,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:49,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:49,334 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-01-09 03:43:49,355 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-01-09 03:43:49,358 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:49,359 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:49,835 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-01-09 03:43:49,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:49,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36217528] [2025-01-09 03:43:49,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36217528] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:49,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [172220018] [2025-01-09 03:43:49,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:49,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:49,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:49,838 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:43:49,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2025-01-09 03:43:49,992 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 177 statements into 1 equivalence classes. [2025-01-09 03:43:50,204 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 177 of 177 statements. [2025-01-09 03:43:50,205 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:50,205 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:50,211 INFO L256 TraceCheckSpWp]: Trace formula consists of 2186 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-09 03:43:50,216 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:50,378 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-01-09 03:43:50,379 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:50,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [172220018] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:50,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:50,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2025-01-09 03:43:50,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405638779] [2025-01-09 03:43:50,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:50,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:43:50,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:50,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:43:50,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2025-01-09 03:43:50,380 INFO L87 Difference]: Start difference. First operand 18445 states and 30908 transitions. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 5 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) [2025-01-09 03:43:53,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:53,068 INFO L93 Difference]: Finished difference Result 37787 states and 64498 transitions. [2025-01-09 03:43:53,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-09 03:43:53,068 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 5 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) Word has length 177 [2025-01-09 03:43:53,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:53,179 INFO L225 Difference]: With dead ends: 37787 [2025-01-09 03:43:53,179 INFO L226 Difference]: Without dead ends: 21000 [2025-01-09 03:43:53,244 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2025-01-09 03:43:53,245 INFO L435 NwaCegarLoop]: 393 mSDtfsCounter, 1913 mSDsluCounter, 1511 mSDsCounter, 0 mSdLazyCounter, 3057 mSolverCounterSat, 402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1997 SdHoareTripleChecker+Valid, 1904 SdHoareTripleChecker+Invalid, 3459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 402 IncrementalHoareTripleChecker+Valid, 3057 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:53,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1997 Valid, 1904 Invalid, 3459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [402 Valid, 3057 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-01-09 03:43:53,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21000 states. [2025-01-09 03:43:54,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21000 to 18905. [2025-01-09 03:43:54,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18905 states, 14640 states have (on average 1.5591530054644809) internal successors, (22826), 15171 states have internal predecessors, (22826), 3147 states have call successors, (3147), 716 states have call predecessors, (3147), 1117 states have return successors, (6051), 3127 states have call predecessors, (6051), 3142 states have call successors, (6051) [2025-01-09 03:43:54,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18905 states to 18905 states and 32024 transitions. [2025-01-09 03:43:54,215 INFO L78 Accepts]: Start accepts. Automaton has 18905 states and 32024 transitions. Word has length 177 [2025-01-09 03:43:54,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:54,215 INFO L471 AbstractCegarLoop]: Abstraction has 18905 states and 32024 transitions. [2025-01-09 03:43:54,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 5 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (19), 5 states have call predecessors, (19), 4 states have call successors, (19) [2025-01-09 03:43:54,216 INFO L276 IsEmpty]: Start isEmpty. Operand 18905 states and 32024 transitions. [2025-01-09 03:43:54,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2025-01-09 03:43:54,219 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:54,219 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:43:54,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2025-01-09 03:43:54,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39,34 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:54,423 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:54,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:54,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1728271801, now seen corresponding path program 1 times [2025-01-09 03:43:54,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:54,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211507459] [2025-01-09 03:43:54,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:54,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:54,437 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 175 statements into 1 equivalence classes. [2025-01-09 03:43:54,446 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 175 of 175 statements. [2025-01-09 03:43:54,446 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:54,446 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:54,534 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-01-09 03:43:54,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:54,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211507459] [2025-01-09 03:43:54,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211507459] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:54,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:43:54,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 03:43:54,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498819547] [2025-01-09 03:43:54,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:54,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:43:54,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:54,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:43:54,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:43:54,536 INFO L87 Difference]: Start difference. First operand 18905 states and 32024 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2025-01-09 03:43:58,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:58,067 INFO L93 Difference]: Finished difference Result 54093 states and 94618 transitions. [2025-01-09 03:43:58,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:43:58,068 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) Word has length 175 [2025-01-09 03:43:58,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:58,286 INFO L225 Difference]: With dead ends: 54093 [2025-01-09 03:43:58,286 INFO L226 Difference]: Without dead ends: 35316 [2025-01-09 03:43:58,383 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:43:58,383 INFO L435 NwaCegarLoop]: 474 mSDtfsCounter, 2202 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 2287 mSolverCounterSat, 502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2299 SdHoareTripleChecker+Valid, 1386 SdHoareTripleChecker+Invalid, 2789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 2287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:58,383 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2299 Valid, 1386 Invalid, 2789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 2287 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-01-09 03:43:58,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35316 states. [2025-01-09 03:44:00,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35316 to 32936. [2025-01-09 03:44:00,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32936 states, 25072 states have (on average 1.5512523931078495) internal successors, (38893), 26150 states have internal predecessors, (38893), 5947 states have call successors, (5947), 1194 states have call predecessors, (5947), 1916 states have return successors, (11987), 5971 states have call predecessors, (11987), 5942 states have call successors, (11987) [2025-01-09 03:44:00,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32936 states to 32936 states and 56827 transitions. [2025-01-09 03:44:00,730 INFO L78 Accepts]: Start accepts. Automaton has 32936 states and 56827 transitions. Word has length 175 [2025-01-09 03:44:00,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:00,732 INFO L471 AbstractCegarLoop]: Abstraction has 32936 states and 56827 transitions. [2025-01-09 03:44:00,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 4 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 4 states have call predecessors, (18), 3 states have call successors, (18) [2025-01-09 03:44:00,732 INFO L276 IsEmpty]: Start isEmpty. Operand 32936 states and 56827 transitions. [2025-01-09 03:44:00,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2025-01-09 03:44:00,738 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:00,738 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:00,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2025-01-09 03:44:00,739 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:00,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:00,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1033420827, now seen corresponding path program 1 times [2025-01-09 03:44:00,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:00,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958210283] [2025-01-09 03:44:00,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:00,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:00,755 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 183 statements into 1 equivalence classes. [2025-01-09 03:44:00,767 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 183 of 183 statements. [2025-01-09 03:44:00,767 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:00,768 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:00,987 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-01-09 03:44:00,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:00,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958210283] [2025-01-09 03:44:00,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958210283] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:00,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:44:00,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:44:00,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529970375] [2025-01-09 03:44:00,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:00,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:00,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:00,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:00,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:44:00,988 INFO L87 Difference]: Start difference. First operand 32936 states and 56827 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2025-01-09 03:44:06,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:06,459 INFO L93 Difference]: Finished difference Result 100571 states and 180027 transitions. [2025-01-09 03:44:06,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:44:06,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 183 [2025-01-09 03:44:06,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:06,972 INFO L225 Difference]: With dead ends: 100571 [2025-01-09 03:44:06,972 INFO L226 Difference]: Without dead ends: 67739 [2025-01-09 03:44:07,204 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:44:07,206 INFO L435 NwaCegarLoop]: 184 mSDtfsCounter, 1944 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2025 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 1743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:07,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2025 Valid, 381 Invalid, 1743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [361 Valid, 1382 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-01-09 03:44:07,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67739 states. [2025-01-09 03:44:11,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67739 to 67737. [2025-01-09 03:44:11,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67737 states, 51613 states have (on average 1.534768372309302) internal successors, (79214), 54044 states have internal predecessors, (79214), 12001 states have call successors, (12001), 2384 states have call predecessors, (12001), 4122 states have return successors, (28717), 12068 states have call predecessors, (28717), 11996 states have call successors, (28717) [2025-01-09 03:44:11,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67737 states to 67737 states and 119932 transitions. [2025-01-09 03:44:11,852 INFO L78 Accepts]: Start accepts. Automaton has 67737 states and 119932 transitions. Word has length 183 [2025-01-09 03:44:11,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:11,852 INFO L471 AbstractCegarLoop]: Abstraction has 67737 states and 119932 transitions. [2025-01-09 03:44:11,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2025-01-09 03:44:11,853 INFO L276 IsEmpty]: Start isEmpty. Operand 67737 states and 119932 transitions. [2025-01-09 03:44:11,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2025-01-09 03:44:11,863 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:11,863 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:11,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2025-01-09 03:44:11,864 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:11,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:11,864 INFO L85 PathProgramCache]: Analyzing trace with hash -364690238, now seen corresponding path program 1 times [2025-01-09 03:44:11,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:11,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662780005] [2025-01-09 03:44:11,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:11,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:11,878 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 186 statements into 1 equivalence classes. [2025-01-09 03:44:11,887 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 186 of 186 statements. [2025-01-09 03:44:11,888 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:11,888 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:12,276 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2025-01-09 03:44:12,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:12,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662780005] [2025-01-09 03:44:12,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662780005] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:12,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:44:12,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-09 03:44:12,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596657606] [2025-01-09 03:44:12,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:12,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 03:44:12,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:12,278 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 03:44:12,278 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:44:12,278 INFO L87 Difference]: Start difference. First operand 67737 states and 119932 transitions. Second operand has 9 states, 9 states have (on average 13.777777777777779) internal successors, (124), 9 states have internal predecessors, (124), 6 states have call successors, (21), 4 states have call predecessors, (21), 3 states have return successors, (20), 7 states have call predecessors, (20), 5 states have call successors, (20)