./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec1_product25.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_product25.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 680b86ee69d2fa1a591b34672ee94362515e8041606baf59201de5a19c705dd0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 03:42:46,969 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 03:42:47,023 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 03:42:47,030 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 03:42:47,031 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 03:42:47,050 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 03:42:47,050 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 03:42:47,051 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 03:42:47,051 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 03:42:47,051 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 03:42:47,052 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 03:42:47,052 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 03:42:47,052 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 03:42:47,052 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 03:42:47,053 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 03:42:47,053 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 03:42:47,053 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 03:42:47,053 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 03:42:47,053 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 03:42:47,053 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 03:42:47,053 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 03:42:47,053 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 03:42:47,054 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 03:42:47,054 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 03:42:47,054 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 03:42:47,054 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 03:42:47,054 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 03:42:47,054 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 03:42:47,054 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 03:42:47,054 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:42:47,054 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:42:47,055 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:42:47,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:42:47,055 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 03:42:47,055 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:42:47,055 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:42:47,055 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:42:47,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:42:47,055 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 03:42:47,056 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 03:42:47,056 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 03:42:47,056 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 03:42:47,056 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 03:42:47,056 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 03:42:47,056 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 03:42:47,056 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 03:42:47,056 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 03:42:47,056 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 03:42:47,056 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 -> 680b86ee69d2fa1a591b34672ee94362515e8041606baf59201de5a19c705dd0 [2025-01-09 03:42:47,356 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 03:42:47,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 03:42:47,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 03:42:47,368 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 03:42:47,369 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 03:42:47,370 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec1_product25.cil.c [2025-01-09 03:42:48,571 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/156352225/70f67753bfe0466bbc1298a1692e43db/FLAG86d41e961 [2025-01-09 03:42:48,898 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 03:42:48,903 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec1_product25.cil.c [2025-01-09 03:42:48,919 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/156352225/70f67753bfe0466bbc1298a1692e43db/FLAG86d41e961 [2025-01-09 03:42:49,129 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/156352225/70f67753bfe0466bbc1298a1692e43db [2025-01-09 03:42:49,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 03:42:49,132 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 03:42:49,132 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 03:42:49,133 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 03:42:49,135 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 03:42:49,136 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:42:49" (1/1) ... [2025-01-09 03:42:49,137 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3730fdd6 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 03:42:49,137 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:42:49" (1/1) ... [2025-01-09 03:42:49,173 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 03:42:49,395 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_product25.cil.c[13407,13420] [2025-01-09 03:42:49,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:42:49,545 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 03:42:49,550 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2025-01-09 03:42:49,551 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [86] [2025-01-09 03:42:49,551 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [452] [2025-01-09 03:42:49,552 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [553] [2025-01-09 03:42:49,552 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [562] [2025-01-09 03:42:49,552 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [916] [2025-01-09 03:42:49,552 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [1099] [2025-01-09 03:42:49,552 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1770] [2025-01-09 03:42:49,552 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1783] [2025-01-09 03:42:49,552 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1903] [2025-01-09 03:42:49,580 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_product25.cil.c[13407,13420] [2025-01-09 03:42:49,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:42:49,676 INFO L204 MainTranslator]: Completed translation [2025-01-09 03:42:49,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:49 WrapperNode [2025-01-09 03:42:49,677 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 03:42:49,678 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 03:42:49,678 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 03:42:49,678 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 03:42:49,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:49" (1/1) ... [2025-01-09 03:42:49,703 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:49" (1/1) ... [2025-01-09 03:42:49,730 INFO L138 Inliner]: procedures = 91, calls = 335, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 831 [2025-01-09 03:42:49,730 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 03:42:49,731 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 03:42:49,731 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 03:42:49,731 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 03:42:49,739 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:49" (1/1) ... [2025-01-09 03:42:49,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:49" (1/1) ... [2025-01-09 03:42:49,743 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:49" (1/1) ... [2025-01-09 03:42:49,760 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 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 03:42:49,761 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:49" (1/1) ... [2025-01-09 03:42:49,761 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:49" (1/1) ... [2025-01-09 03:42:49,772 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:49" (1/1) ... [2025-01-09 03:42:49,774 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:49" (1/1) ... [2025-01-09 03:42:49,791 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:49" (1/1) ... [2025-01-09 03:42:49,799 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:49" (1/1) ... [2025-01-09 03:42:49,801 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:49" (1/1) ... [2025-01-09 03:42:49,805 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 03:42:49,806 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 03:42:49,806 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 03:42:49,806 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 03:42:49,807 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:49" (1/1) ... [2025-01-09 03:42:49,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:42:49,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:42:49,840 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 03:42:49,850 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 03:42:49,874 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2025-01-09 03:42:49,874 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2025-01-09 03:42:49,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 03:42:49,875 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2025-01-09 03:42:49,875 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2025-01-09 03:42:49,875 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2025-01-09 03:42:49,875 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2025-01-09 03:42:49,875 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2025-01-09 03:42:49,875 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2025-01-09 03:42:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2025-01-09 03:42:49,876 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2025-01-09 03:42:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2025-01-09 03:42:49,876 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2025-01-09 03:42:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-01-09 03:42:49,876 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-01-09 03:42:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-01-09 03:42:49,876 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-01-09 03:42:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2025-01-09 03:42:49,876 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2025-01-09 03:42:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2025-01-09 03:42:49,876 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2025-01-09 03:42:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2025-01-09 03:42:49,876 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2025-01-09 03:42:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2025-01-09 03:42:49,876 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2025-01-09 03:42:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2025-01-09 03:42:49,876 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2025-01-09 03:42:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2025-01-09 03:42:49,876 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2025-01-09 03:42:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2025-01-09 03:42:49,876 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2025-01-09 03:42:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2025-01-09 03:42:49,876 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2025-01-09 03:42:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2025-01-09 03:42:49,876 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2025-01-09 03:42:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2025-01-09 03:42:49,876 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2025-01-09 03:42:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 03:42:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 03:42:49,876 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 03:42:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 03:42:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 03:42:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 03:42:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 03:42:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 03:42:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-01-09 03:42:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-01-09 03:42:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-01-09 03:42:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-01-09 03:42:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-01-09 03:42:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-01-09 03:42:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-01-09 03:42:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-01-09 03:42:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-01-09 03:42:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-01-09 03:42:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-01-09 03:42:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-01-09 03:42:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2025-01-09 03:42:49,877 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2025-01-09 03:42:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2025-01-09 03:42:49,877 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2025-01-09 03:42:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2025-01-09 03:42:49,877 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2025-01-09 03:42:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 03:42:49,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 03:42:49,877 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2025-01-09 03:42:49,879 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2025-01-09 03:42:50,027 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 03:42:50,029 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 03:42:50,889 INFO L? ?]: Removed 439 outVars from TransFormulas that were not future-live. [2025-01-09 03:42:50,889 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 03:42:50,915 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 03:42:50,918 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 03:42:50,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:42:50 BoogieIcfgContainer [2025-01-09 03:42:50,919 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 03:42:50,920 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 03:42:50,920 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 03:42:50,924 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 03:42:50,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 03:42:49" (1/3) ... [2025-01-09 03:42:50,924 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5944af0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:42:50, skipping insertion in model container [2025-01-09 03:42:50,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:42:49" (2/3) ... [2025-01-09 03:42:50,925 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5944af0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:42:50, skipping insertion in model container [2025-01-09 03:42:50,925 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:42:50" (3/3) ... [2025-01-09 03:42:50,926 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product25.cil.c [2025-01-09 03:42:50,935 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 03:42:50,938 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec1_product25.cil.c that has 23 procedures, 547 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 03:42:50,994 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 03:42:51,003 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;@218905b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 03:42:51,004 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 03:42:51,010 INFO L276 IsEmpty]: Start isEmpty. Operand has 547 states, 432 states have (on average 1.7060185185185186) internal successors, (737), 453 states have internal predecessors, (737), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 85 states have call predecessors, (91), 91 states have call successors, (91) [2025-01-09 03:42:51,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-01-09 03:42:51,034 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:42:51,035 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, 1, 1, 1, 1] [2025-01-09 03:42:51,035 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:42:51,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:42:51,040 INFO L85 PathProgramCache]: Analyzing trace with hash 648319390, now seen corresponding path program 1 times [2025-01-09 03:42:51,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:42:51,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539633616] [2025-01-09 03:42:51,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:51,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:42:51,138 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-01-09 03:42:51,206 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-01-09 03:42:51,209 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:51,209 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:51,630 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 03:42:51,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:42:51,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539633616] [2025-01-09 03:42:51,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539633616] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:42:51,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1865754262] [2025-01-09 03:42:51,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:51,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:42:51,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:42:51,634 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 03:42:51,636 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 03:42:51,757 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-01-09 03:42:51,989 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-01-09 03:42:51,990 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:51,990 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:51,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 1770 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 03:42:52,004 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:42:52,026 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 03:42:52,029 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:42:52,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1865754262] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:42:52,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:42:52,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 4 [2025-01-09 03:42:52,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835973682] [2025-01-09 03:42:52,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:42:52,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 03:42:52,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:42:52,050 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 03:42:52,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:42:52,053 INFO L87 Difference]: Start difference. First operand has 547 states, 432 states have (on average 1.7060185185185186) internal successors, (737), 453 states have internal predecessors, (737), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 85 states have call predecessors, (91), 91 states have call successors, (91) Second operand has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2025-01-09 03:42:52,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:42:52,110 INFO L93 Difference]: Finished difference Result 568 states and 949 transitions. [2025-01-09 03:42:52,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 03:42:52,112 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 97 [2025-01-09 03:42:52,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:42:52,124 INFO L225 Difference]: With dead ends: 568 [2025-01-09 03:42:52,125 INFO L226 Difference]: Without dead ends: 539 [2025-01-09 03:42:52,127 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 98 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 03:42:52,129 INFO L435 NwaCegarLoop]: 911 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, 911 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 03:42:52,129 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 911 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:42:52,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2025-01-09 03:42:52,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2025-01-09 03:42:52,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 426 states have (on average 1.7065727699530517) internal successors, (727), 445 states have internal predecessors, (727), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2025-01-09 03:42:52,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 904 transitions. [2025-01-09 03:42:52,217 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 904 transitions. Word has length 97 [2025-01-09 03:42:52,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:42:52,218 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 904 transitions. [2025-01-09 03:42:52,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 31.0) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2025-01-09 03:42:52,218 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 904 transitions. [2025-01-09 03:42:52,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-01-09 03:42:52,230 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:42:52,230 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, 1, 1, 1, 1, 1] [2025-01-09 03:42:52,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-01-09 03:42:52,434 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 03:42:52,435 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:42:52,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:42:52,438 INFO L85 PathProgramCache]: Analyzing trace with hash 1853977564, now seen corresponding path program 1 times [2025-01-09 03:42:52,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:42:52,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671971986] [2025-01-09 03:42:52,439 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:52,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:42:52,463 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-01-09 03:42:52,476 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-01-09 03:42:52,476 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:52,477 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:52,645 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 03:42:52,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:42:52,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671971986] [2025-01-09 03:42:52,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671971986] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:42:52,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691239434] [2025-01-09 03:42:52,646 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:52,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:42:52,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:42:52,648 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 03:42:52,650 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 03:42:52,780 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-01-09 03:42:52,973 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-01-09 03:42:52,973 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:52,973 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:52,980 INFO L256 TraceCheckSpWp]: Trace formula consists of 1772 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:42:52,987 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:42:53,030 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 03:42:53,034 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:42:53,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691239434] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:42:53,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:42:53,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:42:53,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105994194] [2025-01-09 03:42:53,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:42:53,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:42:53,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:42:53,037 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:42:53,037 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:42:53,037 INFO L87 Difference]: Start difference. First operand 539 states and 904 transitions. Second operand has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:42:53,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:42:53,116 INFO L93 Difference]: Finished difference Result 1069 states and 1800 transitions. [2025-01-09 03:42:53,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:42:53,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 98 [2025-01-09 03:42:53,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:42:53,124 INFO L225 Difference]: With dead ends: 1069 [2025-01-09 03:42:53,125 INFO L226 Difference]: Without dead ends: 539 [2025-01-09 03:42:53,131 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 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 03:42:53,131 INFO L435 NwaCegarLoop]: 892 mSDtfsCounter, 5 mSDsluCounter, 1778 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2670 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 03:42:53,131 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2670 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:42:53,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2025-01-09 03:42:53,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2025-01-09 03:42:53,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 426 states have (on average 1.704225352112676) internal successors, (726), 445 states have internal predecessors, (726), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2025-01-09 03:42:53,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 903 transitions. [2025-01-09 03:42:53,166 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 903 transitions. Word has length 98 [2025-01-09 03:42:53,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:42:53,167 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 903 transitions. [2025-01-09 03:42:53,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.5) internal successors, (66), 4 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:42:53,168 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 903 transitions. [2025-01-09 03:42:53,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2025-01-09 03:42:53,171 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:42:53,172 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:42:53,180 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 03:42:53,372 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 03:42:53,372 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:42:53,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:42:53,373 INFO L85 PathProgramCache]: Analyzing trace with hash -837009796, now seen corresponding path program 1 times [2025-01-09 03:42:53,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:42:53,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833004805] [2025-01-09 03:42:53,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:53,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:42:53,411 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-01-09 03:42:53,443 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-01-09 03:42:53,443 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:53,443 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:53,668 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 03:42:53,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:42:53,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833004805] [2025-01-09 03:42:53,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833004805] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:42:53,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393564634] [2025-01-09 03:42:53,668 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:53,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:42:53,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:42:53,674 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 03:42:53,675 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 03:42:53,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-01-09 03:42:53,964 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-01-09 03:42:53,965 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:53,965 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:53,969 INFO L256 TraceCheckSpWp]: Trace formula consists of 1774 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:42:53,978 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:42:54,009 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 03:42:54,012 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:42:54,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393564634] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:42:54,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:42:54,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:42:54,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431257701] [2025-01-09 03:42:54,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:42:54,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:42:54,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:42:54,013 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:42:54,013 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:42:54,013 INFO L87 Difference]: Start difference. First operand 539 states and 903 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:42:54,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:42:54,084 INFO L93 Difference]: Finished difference Result 1069 states and 1798 transitions. [2025-01-09 03:42:54,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:42:54,086 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 100 [2025-01-09 03:42:54,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:42:54,089 INFO L225 Difference]: With dead ends: 1069 [2025-01-09 03:42:54,092 INFO L226 Difference]: Without dead ends: 539 [2025-01-09 03:42:54,093 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 99 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 03:42:54,094 INFO L435 NwaCegarLoop]: 892 mSDtfsCounter, 4 mSDsluCounter, 1778 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2670 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 03:42:54,094 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2670 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:42:54,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2025-01-09 03:42:54,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2025-01-09 03:42:54,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 426 states have (on average 1.7018779342723005) internal successors, (725), 445 states have internal predecessors, (725), 91 states have call successors, (91), 22 states have call predecessors, (91), 21 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2025-01-09 03:42:54,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 902 transitions. [2025-01-09 03:42:54,112 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 902 transitions. Word has length 100 [2025-01-09 03:42:54,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:42:54,113 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 902 transitions. [2025-01-09 03:42:54,113 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:42:54,113 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 902 transitions. [2025-01-09 03:42:54,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-01-09 03:42:54,115 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:42:54,115 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:42:54,123 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-01-09 03:42:54,316 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 03:42:54,316 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:42:54,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:42:54,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1539428764, now seen corresponding path program 1 times [2025-01-09 03:42:54,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:42:54,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191572085] [2025-01-09 03:42:54,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:54,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:42:54,342 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-01-09 03:42:54,348 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-01-09 03:42:54,348 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:54,348 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:54,437 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 03:42:54,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:42:54,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191572085] [2025-01-09 03:42:54,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191572085] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:42:54,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207202000] [2025-01-09 03:42:54,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:54,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:42:54,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:42:54,442 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 03:42:54,443 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 03:42:54,550 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-01-09 03:42:54,699 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-01-09 03:42:54,699 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:54,699 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:54,704 INFO L256 TraceCheckSpWp]: Trace formula consists of 1776 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:42:54,710 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:42:54,739 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 03:42:54,740 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:42:54,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207202000] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:42:54,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:42:54,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:42:54,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15455060] [2025-01-09 03:42:54,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:42:54,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:42:54,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:42:54,742 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:42:54,743 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:42:54,743 INFO L87 Difference]: Start difference. First operand 539 states and 902 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:42:54,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:42:54,813 INFO L93 Difference]: Finished difference Result 1076 states and 1805 transitions. [2025-01-09 03:42:54,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:42:54,814 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 102 [2025-01-09 03:42:54,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:42:54,817 INFO L225 Difference]: With dead ends: 1076 [2025-01-09 03:42:54,817 INFO L226 Difference]: Without dead ends: 548 [2025-01-09 03:42:54,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 101 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 03:42:54,821 INFO L435 NwaCegarLoop]: 891 mSDtfsCounter, 13 mSDsluCounter, 1776 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2667 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 03:42:54,822 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2667 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:42:54,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2025-01-09 03:42:54,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2025-01-09 03:42:54,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 434 states have (on average 1.6981566820276497) internal successors, (737), 453 states have internal predecessors, (737), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2025-01-09 03:42:54,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 914 transitions. [2025-01-09 03:42:54,843 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 914 transitions. Word has length 102 [2025-01-09 03:42:54,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:42:54,844 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 914 transitions. [2025-01-09 03:42:54,844 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:42:54,844 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 914 transitions. [2025-01-09 03:42:54,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2025-01-09 03:42:54,847 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:42:54,848 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:42:54,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-09 03:42:55,048 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 03:42:55,048 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:42:55,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:42:55,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1191104123, now seen corresponding path program 1 times [2025-01-09 03:42:55,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:42:55,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314729396] [2025-01-09 03:42:55,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:55,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:42:55,062 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-01-09 03:42:55,070 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-01-09 03:42:55,073 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:55,074 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:55,160 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 03:42:55,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:42:55,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314729396] [2025-01-09 03:42:55,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314729396] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:42:55,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882193404] [2025-01-09 03:42:55,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:55,161 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:42:55,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:42:55,162 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 03:42:55,164 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 03:42:55,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-01-09 03:42:55,398 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-01-09 03:42:55,398 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:55,398 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:55,403 INFO L256 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:42:55,407 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:42:55,433 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 03:42:55,434 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:42:55,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882193404] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:42:55,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:42:55,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:42:55,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878805197] [2025-01-09 03:42:55,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:42:55,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:42:55,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:42:55,435 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:42:55,435 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:42:55,435 INFO L87 Difference]: Start difference. First operand 548 states and 914 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:42:55,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:42:55,512 INFO L93 Difference]: Finished difference Result 1078 states and 1806 transitions. [2025-01-09 03:42:55,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:42:55,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2025-01-09 03:42:55,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:42:55,516 INFO L225 Difference]: With dead ends: 1078 [2025-01-09 03:42:55,516 INFO L226 Difference]: Without dead ends: 548 [2025-01-09 03:42:55,517 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 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 03:42:55,518 INFO L435 NwaCegarLoop]: 891 mSDtfsCounter, 11 mSDsluCounter, 1776 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2667 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 03:42:55,518 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2667 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:42:55,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2025-01-09 03:42:55,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2025-01-09 03:42:55,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 434 states have (on average 1.695852534562212) internal successors, (736), 453 states have internal predecessors, (736), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2025-01-09 03:42:55,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 913 transitions. [2025-01-09 03:42:55,532 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 913 transitions. Word has length 103 [2025-01-09 03:42:55,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:42:55,533 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 913 transitions. [2025-01-09 03:42:55,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:42:55,533 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 913 transitions. [2025-01-09 03:42:55,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-01-09 03:42:55,535 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:42:55,535 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:42:55,543 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 03:42:55,736 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 03:42:55,736 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:42:55,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:42:55,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1927665096, now seen corresponding path program 1 times [2025-01-09 03:42:55,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:42:55,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871312632] [2025-01-09 03:42:55,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:55,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:42:55,760 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-01-09 03:42:55,769 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-01-09 03:42:55,773 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:55,773 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:55,903 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 03:42:55,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:42:55,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871312632] [2025-01-09 03:42:55,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871312632] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:42:55,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1070005794] [2025-01-09 03:42:55,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:55,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:42:55,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:42:55,910 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 03:42:55,911 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 03:42:56,015 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-01-09 03:42:56,152 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-01-09 03:42:56,153 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:56,153 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:56,159 INFO L256 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:42:56,163 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:42:56,190 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 03:42:56,191 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:42:56,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1070005794] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:42:56,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:42:56,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:42:56,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444995962] [2025-01-09 03:42:56,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:42:56,191 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:42:56,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:42:56,192 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:42:56,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:42:56,193 INFO L87 Difference]: Start difference. First operand 548 states and 913 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:42:56,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:42:56,242 INFO L93 Difference]: Finished difference Result 1078 states and 1805 transitions. [2025-01-09 03:42:56,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:42:56,243 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2025-01-09 03:42:56,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:42:56,246 INFO L225 Difference]: With dead ends: 1078 [2025-01-09 03:42:56,247 INFO L226 Difference]: Without dead ends: 548 [2025-01-09 03:42:56,249 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 103 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 03:42:56,250 INFO L435 NwaCegarLoop]: 891 mSDtfsCounter, 10 mSDsluCounter, 1776 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2667 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 03:42:56,251 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2667 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:42:56,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2025-01-09 03:42:56,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2025-01-09 03:42:56,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 434 states have (on average 1.6935483870967742) internal successors, (735), 453 states have internal predecessors, (735), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (86), 84 states have call predecessors, (86), 86 states have call successors, (86) [2025-01-09 03:42:56,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 912 transitions. [2025-01-09 03:42:56,272 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 912 transitions. Word has length 104 [2025-01-09 03:42:56,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:42:56,272 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 912 transitions. [2025-01-09 03:42:56,272 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, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:42:56,272 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 912 transitions. [2025-01-09 03:42:56,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-01-09 03:42:56,274 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:42:56,274 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:42:56,283 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 03:42:56,475 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 03:42:56,475 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:42:56,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:42:56,476 INFO L85 PathProgramCache]: Analyzing trace with hash -980638879, now seen corresponding path program 1 times [2025-01-09 03:42:56,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:42:56,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023780131] [2025-01-09 03:42:56,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:56,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:42:56,488 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-01-09 03:42:56,494 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-01-09 03:42:56,494 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:56,494 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:56,626 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 03:42:56,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:42:56,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023780131] [2025-01-09 03:42:56,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023780131] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:42:56,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892348892] [2025-01-09 03:42:56,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:56,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:42:56,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:42:56,629 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 03:42:56,633 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 03:42:56,738 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-01-09 03:42:56,873 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-01-09 03:42:56,873 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:56,873 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:56,880 INFO L256 TraceCheckSpWp]: Trace formula consists of 1779 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 03:42:56,883 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:42:56,932 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 03:42:56,932 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:42:56,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [892348892] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:42:56,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:42:56,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2025-01-09 03:42:56,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026804251] [2025-01-09 03:42:56,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:42:56,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:42:56,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:42:56,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:42:56,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:42:56,934 INFO L87 Difference]: Start difference. First operand 548 states and 912 transitions. Second operand has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2025-01-09 03:42:57,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:42:57,009 INFO L93 Difference]: Finished difference Result 1097 states and 1835 transitions. [2025-01-09 03:42:57,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:42:57,009 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 105 [2025-01-09 03:42:57,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:42:57,013 INFO L225 Difference]: With dead ends: 1097 [2025-01-09 03:42:57,013 INFO L226 Difference]: Without dead ends: 571 [2025-01-09 03:42:57,015 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 101 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 03:42:57,015 INFO L435 NwaCegarLoop]: 892 mSDtfsCounter, 100 mSDsluCounter, 4374 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 5266 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 03:42:57,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 5266 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:42:57,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2025-01-09 03:42:57,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 567. [2025-01-09 03:42:57,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 450 states have (on average 1.691111111111111) internal successors, (761), 471 states have internal predecessors, (761), 92 states have call successors, (92), 23 states have call predecessors, (92), 24 states have return successors, (90), 85 states have call predecessors, (90), 87 states have call successors, (90) [2025-01-09 03:42:57,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 943 transitions. [2025-01-09 03:42:57,033 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 943 transitions. Word has length 105 [2025-01-09 03:42:57,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:42:57,034 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 943 transitions. [2025-01-09 03:42:57,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2025-01-09 03:42:57,034 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 943 transitions. [2025-01-09 03:42:57,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-01-09 03:42:57,036 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:42:57,036 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:42:57,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-01-09 03:42:57,241 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 03:42:57,241 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:42:57,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:42:57,242 INFO L85 PathProgramCache]: Analyzing trace with hash 669497920, now seen corresponding path program 1 times [2025-01-09 03:42:57,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:42:57,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375192674] [2025-01-09 03:42:57,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:57,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:42:57,253 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-01-09 03:42:57,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-01-09 03:42:57,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:57,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:57,311 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 03:42:57,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:42:57,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375192674] [2025-01-09 03:42:57,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375192674] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:42:57,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648324692] [2025-01-09 03:42:57,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:57,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:42:57,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:42:57,314 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 03:42:57,316 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 03:42:57,416 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-01-09 03:42:57,553 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-01-09 03:42:57,553 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:57,553 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:57,559 INFO L256 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:42:57,562 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:42:57,584 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 03:42:57,585 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:42:57,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648324692] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:42:57,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:42:57,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:42:57,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179722675] [2025-01-09 03:42:57,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:42:57,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:42:57,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:42:57,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:42:57,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:42:57,588 INFO L87 Difference]: Start difference. First operand 567 states and 943 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:42:57,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:42:57,709 INFO L93 Difference]: Finished difference Result 1153 states and 1936 transitions. [2025-01-09 03:42:57,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:42:57,710 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2025-01-09 03:42:57,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:42:57,714 INFO L225 Difference]: With dead ends: 1153 [2025-01-09 03:42:57,714 INFO L226 Difference]: Without dead ends: 582 [2025-01-09 03:42:57,715 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 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 03:42:57,716 INFO L435 NwaCegarLoop]: 866 mSDtfsCounter, 76 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 2558 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 03:42:57,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 2558 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:42:57,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2025-01-09 03:42:57,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 567. [2025-01-09 03:42:57,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 450 states have (on average 1.68) internal successors, (756), 471 states have internal predecessors, (756), 92 states have call successors, (92), 23 states have call predecessors, (92), 24 states have return successors, (90), 85 states have call predecessors, (90), 87 states have call successors, (90) [2025-01-09 03:42:57,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 938 transitions. [2025-01-09 03:42:57,737 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 938 transitions. Word has length 105 [2025-01-09 03:42:57,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:42:57,737 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 938 transitions. [2025-01-09 03:42:57,737 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:42:57,737 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 938 transitions. [2025-01-09 03:42:57,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2025-01-09 03:42:57,739 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:42:57,739 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:42:57,748 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 03:42:57,940 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 03:42:57,940 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:42:57,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:42:57,941 INFO L85 PathProgramCache]: Analyzing trace with hash 912244016, now seen corresponding path program 1 times [2025-01-09 03:42:57,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:42:57,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709104215] [2025-01-09 03:42:57,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:57,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:42:57,967 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-01-09 03:42:57,974 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-01-09 03:42:57,974 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:57,974 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:58,019 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 03:42:58,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:42:58,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709104215] [2025-01-09 03:42:58,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709104215] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:42:58,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069472428] [2025-01-09 03:42:58,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:58,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:42:58,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:42:58,022 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 03:42:58,026 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 03:42:58,128 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-01-09 03:42:58,254 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-01-09 03:42:58,254 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:58,254 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:58,259 INFO L256 TraceCheckSpWp]: Trace formula consists of 1780 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:42:58,261 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:42:58,293 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 03:42:58,294 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:42:58,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069472428] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:42:58,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:42:58,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:42:58,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297378001] [2025-01-09 03:42:58,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:42:58,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:42:58,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:42:58,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:42:58,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:42:58,296 INFO L87 Difference]: Start difference. First operand 567 states and 938 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:42:58,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:42:58,398 INFO L93 Difference]: Finished difference Result 1153 states and 1926 transitions. [2025-01-09 03:42:58,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:42:58,399 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 107 [2025-01-09 03:42:58,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:42:58,403 INFO L225 Difference]: With dead ends: 1153 [2025-01-09 03:42:58,403 INFO L226 Difference]: Without dead ends: 582 [2025-01-09 03:42:58,405 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 106 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 03:42:58,407 INFO L435 NwaCegarLoop]: 866 mSDtfsCounter, 75 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 2558 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 03:42:58,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 2558 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:42:58,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2025-01-09 03:42:58,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 567. [2025-01-09 03:42:58,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 450 states have (on average 1.6688888888888889) internal successors, (751), 471 states have internal predecessors, (751), 92 states have call successors, (92), 23 states have call predecessors, (92), 24 states have return successors, (90), 85 states have call predecessors, (90), 87 states have call successors, (90) [2025-01-09 03:42:58,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 933 transitions. [2025-01-09 03:42:58,426 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 933 transitions. Word has length 107 [2025-01-09 03:42:58,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:42:58,426 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 933 transitions. [2025-01-09 03:42:58,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:42:58,426 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 933 transitions. [2025-01-09 03:42:58,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2025-01-09 03:42:58,428 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:42:58,428 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] [2025-01-09 03:42:58,440 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 03:42:58,629 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 03:42:58,629 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:42:58,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:42:58,629 INFO L85 PathProgramCache]: Analyzing trace with hash -553467104, now seen corresponding path program 1 times [2025-01-09 03:42:58,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:42:58,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074813632] [2025-01-09 03:42:58,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:58,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:42:58,643 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-01-09 03:42:58,647 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-01-09 03:42:58,647 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:58,647 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:58,700 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 03:42:58,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:42:58,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074813632] [2025-01-09 03:42:58,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074813632] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:42:58,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57764173] [2025-01-09 03:42:58,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:58,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:42:58,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:42:58,703 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 03:42:58,706 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 03:42:58,893 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-01-09 03:42:59,024 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-01-09 03:42:59,024 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:59,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:59,029 INFO L256 TraceCheckSpWp]: Trace formula consists of 1782 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:42:59,032 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:42:59,056 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 03:42:59,057 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:42:59,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57764173] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:42:59,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:42:59,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:42:59,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430482362] [2025-01-09 03:42:59,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:42:59,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:42:59,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:42:59,058 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:42:59,069 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:42:59,069 INFO L87 Difference]: Start difference. First operand 567 states and 933 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:42:59,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:42:59,207 INFO L93 Difference]: Finished difference Result 1204 states and 1998 transitions. [2025-01-09 03:42:59,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:42:59,208 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2025-01-09 03:42:59,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:42:59,212 INFO L225 Difference]: With dead ends: 1204 [2025-01-09 03:42:59,212 INFO L226 Difference]: Without dead ends: 663 [2025-01-09 03:42:59,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 108 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 03:42:59,214 INFO L435 NwaCegarLoop]: 899 mSDtfsCounter, 130 mSDsluCounter, 1690 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 2589 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 03:42:59,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 2589 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:42:59,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2025-01-09 03:42:59,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 618. [2025-01-09 03:42:59,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 500 states have (on average 1.672) internal successors, (836), 521 states have internal predecessors, (836), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (89), 85 states have call predecessors, (89), 87 states have call successors, (89) [2025-01-09 03:42:59,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 1017 transitions. [2025-01-09 03:42:59,236 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 1017 transitions. Word has length 109 [2025-01-09 03:42:59,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:42:59,236 INFO L471 AbstractCegarLoop]: Abstraction has 618 states and 1017 transitions. [2025-01-09 03:42:59,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:42:59,237 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 1017 transitions. [2025-01-09 03:42:59,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-01-09 03:42:59,238 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:42:59,239 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:42:59,247 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 03:42:59,439 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 03:42:59,439 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:42:59,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:42:59,440 INFO L85 PathProgramCache]: Analyzing trace with hash 945344154, now seen corresponding path program 1 times [2025-01-09 03:42:59,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:42:59,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185056941] [2025-01-09 03:42:59,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:59,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:42:59,452 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-01-09 03:42:59,457 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-01-09 03:42:59,457 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:59,457 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:59,542 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 03:42:59,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:42:59,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185056941] [2025-01-09 03:42:59,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185056941] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:42:59,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380485824] [2025-01-09 03:42:59,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:59,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:42:59,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:42:59,546 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 03:42:59,548 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 03:42:59,648 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-01-09 03:42:59,779 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-01-09 03:42:59,779 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:59,779 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:59,784 INFO L256 TraceCheckSpWp]: Trace formula consists of 1780 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 03:42:59,787 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:42:59,844 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 03:42:59,844 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:42:59,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380485824] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:42:59,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:42:59,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-01-09 03:42:59,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858011898] [2025-01-09 03:42:59,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:42:59,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:42:59,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:42:59,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:42:59,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:42:59,846 INFO L87 Difference]: Start difference. First operand 618 states and 1017 transitions. Second operand has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2025-01-09 03:42:59,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:42:59,954 INFO L93 Difference]: Finished difference Result 1166 states and 1927 transitions. [2025-01-09 03:42:59,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 03:42:59,954 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 110 [2025-01-09 03:42:59,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:42:59,958 INFO L225 Difference]: With dead ends: 1166 [2025-01-09 03:42:59,958 INFO L226 Difference]: Without dead ends: 640 [2025-01-09 03:42:59,961 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 105 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 03:42:59,961 INFO L435 NwaCegarLoop]: 872 mSDtfsCounter, 113 mSDsluCounter, 5143 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 6015 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 03:42:59,961 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 6015 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:42:59,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2025-01-09 03:42:59,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 618. [2025-01-09 03:42:59,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 500 states have (on average 1.672) internal successors, (836), 521 states have internal predecessors, (836), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (89), 85 states have call predecessors, (89), 87 states have call successors, (89) [2025-01-09 03:42:59,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 1017 transitions. [2025-01-09 03:42:59,978 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 1017 transitions. Word has length 110 [2025-01-09 03:42:59,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:42:59,978 INFO L471 AbstractCegarLoop]: Abstraction has 618 states and 1017 transitions. [2025-01-09 03:42:59,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2025-01-09 03:42:59,979 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 1017 transitions. [2025-01-09 03:42:59,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-01-09 03:42:59,981 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:42:59,981 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:42:59,990 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 03:43:00,181 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 03:43:00,182 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:00,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:00,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1074727558, now seen corresponding path program 1 times [2025-01-09 03:43:00,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:00,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579678194] [2025-01-09 03:43:00,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:00,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:00,193 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-01-09 03:43:00,196 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-01-09 03:43:00,197 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:00,197 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:00,265 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 03:43:00,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:00,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579678194] [2025-01-09 03:43:00,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579678194] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:00,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280059789] [2025-01-09 03:43:00,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:00,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:00,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:00,270 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 03:43:00,272 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 03:43:00,372 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-01-09 03:43:00,505 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-01-09 03:43:00,506 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:00,506 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:00,512 INFO L256 TraceCheckSpWp]: Trace formula consists of 1783 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:43:00,514 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:00,537 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 03:43:00,537 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:00,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280059789] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:00,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:00,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:43:00,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218367331] [2025-01-09 03:43:00,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:00,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:43:00,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:00,538 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:43:00,538 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:43:00,538 INFO L87 Difference]: Start difference. First operand 618 states and 1017 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:43:00,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:00,668 INFO L93 Difference]: Finished difference Result 1207 states and 1999 transitions. [2025-01-09 03:43:00,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:43:00,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2025-01-09 03:43:00,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:00,672 INFO L225 Difference]: With dead ends: 1207 [2025-01-09 03:43:00,672 INFO L226 Difference]: Without dead ends: 651 [2025-01-09 03:43:00,674 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 109 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 03:43:00,674 INFO L435 NwaCegarLoop]: 898 mSDtfsCounter, 124 mSDsluCounter, 1664 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 2562 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 03:43:00,675 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 2562 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:43:00,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2025-01-09 03:43:00,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 618. [2025-01-09 03:43:00,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 500 states have (on average 1.662) internal successors, (831), 521 states have internal predecessors, (831), 92 states have call successors, (92), 24 states have call predecessors, (92), 25 states have return successors, (89), 85 states have call predecessors, (89), 87 states have call successors, (89) [2025-01-09 03:43:00,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 1012 transitions. [2025-01-09 03:43:00,691 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 1012 transitions. Word has length 110 [2025-01-09 03:43:00,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:00,691 INFO L471 AbstractCegarLoop]: Abstraction has 618 states and 1012 transitions. [2025-01-09 03:43:00,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:43:00,691 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 1012 transitions. [2025-01-09 03:43:00,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-01-09 03:43:00,693 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:00,693 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:43:00,704 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-01-09 03:43:00,894 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 03:43:00,894 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:00,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:00,895 INFO L85 PathProgramCache]: Analyzing trace with hash 503589659, now seen corresponding path program 1 times [2025-01-09 03:43:00,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:00,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096987210] [2025-01-09 03:43:00,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:00,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:00,906 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-01-09 03:43:00,912 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-01-09 03:43:00,912 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:00,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:00,957 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 03:43:00,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:00,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096987210] [2025-01-09 03:43:00,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096987210] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:00,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075563854] [2025-01-09 03:43:00,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:00,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:00,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:00,959 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 03:43:00,974 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 03:43:01,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-01-09 03:43:01,210 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-01-09 03:43:01,211 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:01,211 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:01,216 INFO L256 TraceCheckSpWp]: Trace formula consists of 1779 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 03:43:01,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:01,264 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 03:43:01,264 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:01,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075563854] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:01,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:01,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2025-01-09 03:43:01,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122037774] [2025-01-09 03:43:01,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:01,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:43:01,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:01,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:43:01,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:43:01,265 INFO L87 Difference]: Start difference. First operand 618 states and 1012 transitions. Second operand has 7 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-01-09 03:43:01,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:01,353 INFO L93 Difference]: Finished difference Result 1101 states and 1819 transitions. [2025-01-09 03:43:01,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:43:01,354 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 110 [2025-01-09 03:43:01,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:01,357 INFO L225 Difference]: With dead ends: 1101 [2025-01-09 03:43:01,357 INFO L226 Difference]: Without dead ends: 642 [2025-01-09 03:43:01,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 106 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 03:43:01,360 INFO L435 NwaCegarLoop]: 885 mSDtfsCounter, 86 mSDsluCounter, 4346 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 5231 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 03:43:01,360 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 5231 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:01,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2025-01-09 03:43:01,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 637. [2025-01-09 03:43:01,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 516 states have (on average 1.6608527131782946) internal successors, (857), 539 states have internal predecessors, (857), 93 states have call successors, (93), 24 states have call predecessors, (93), 27 states have return successors, (92), 86 states have call predecessors, (92), 88 states have call successors, (92) [2025-01-09 03:43:01,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 1042 transitions. [2025-01-09 03:43:01,378 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 1042 transitions. Word has length 110 [2025-01-09 03:43:01,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:01,378 INFO L471 AbstractCegarLoop]: Abstraction has 637 states and 1042 transitions. [2025-01-09 03:43:01,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.0) internal successors, (84), 6 states have internal predecessors, (84), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-01-09 03:43:01,378 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 1042 transitions. [2025-01-09 03:43:01,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2025-01-09 03:43:01,380 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:01,380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:43:01,389 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-01-09 03:43:01,580 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 03:43:01,580 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:01,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:01,581 INFO L85 PathProgramCache]: Analyzing trace with hash 1103727140, now seen corresponding path program 1 times [2025-01-09 03:43:01,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:01,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314425592] [2025-01-09 03:43:01,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:01,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:01,595 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-01-09 03:43:01,600 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-01-09 03:43:01,600 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:01,600 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:01,659 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 03:43:01,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:01,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314425592] [2025-01-09 03:43:01,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314425592] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:01,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1670279197] [2025-01-09 03:43:01,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:01,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:01,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:01,662 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 03:43:01,663 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 03:43:01,785 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-01-09 03:43:01,920 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-01-09 03:43:01,920 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:01,920 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:01,925 INFO L256 TraceCheckSpWp]: Trace formula consists of 1780 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 03:43:01,928 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:01,981 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 03:43:01,981 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:01,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1670279197] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:01,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:01,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2025-01-09 03:43:01,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830887672] [2025-01-09 03:43:01,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:01,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:43:01,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:01,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:43:01,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:43:01,982 INFO L87 Difference]: Start difference. First operand 637 states and 1042 transitions. Second operand has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-01-09 03:43:02,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:02,047 INFO L93 Difference]: Finished difference Result 1131 states and 1870 transitions. [2025-01-09 03:43:02,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:43:02,047 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 111 [2025-01-09 03:43:02,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:02,050 INFO L225 Difference]: With dead ends: 1131 [2025-01-09 03:43:02,050 INFO L226 Difference]: Without dead ends: 672 [2025-01-09 03:43:02,052 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 107 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 03:43:02,052 INFO L435 NwaCegarLoop]: 885 mSDtfsCounter, 95 mSDsluCounter, 4336 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 5221 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 03:43:02,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 5221 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:02,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2025-01-09 03:43:02,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 637. [2025-01-09 03:43:02,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 516 states have (on average 1.6608527131782946) internal successors, (857), 539 states have internal predecessors, (857), 93 states have call successors, (93), 24 states have call predecessors, (93), 27 states have return successors, (92), 86 states have call predecessors, (92), 88 states have call successors, (92) [2025-01-09 03:43:02,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 1042 transitions. [2025-01-09 03:43:02,066 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 1042 transitions. Word has length 111 [2025-01-09 03:43:02,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:02,066 INFO L471 AbstractCegarLoop]: Abstraction has 637 states and 1042 transitions. [2025-01-09 03:43:02,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-01-09 03:43:02,066 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 1042 transitions. [2025-01-09 03:43:02,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2025-01-09 03:43:02,068 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:02,068 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] [2025-01-09 03:43:02,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-01-09 03:43:02,272 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 03:43:02,272 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:02,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:02,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1978178980, now seen corresponding path program 1 times [2025-01-09 03:43:02,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:02,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499914066] [2025-01-09 03:43:02,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:02,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:02,284 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-01-09 03:43:02,287 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-01-09 03:43:02,288 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:02,288 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:02,327 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 03:43:02,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:02,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499914066] [2025-01-09 03:43:02,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499914066] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:02,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698668405] [2025-01-09 03:43:02,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:02,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:02,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:02,329 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 03:43:02,331 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 03:43:02,441 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-01-09 03:43:02,571 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-01-09 03:43:02,571 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:02,571 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:02,576 INFO L256 TraceCheckSpWp]: Trace formula consists of 1776 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 03:43:02,580 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:02,634 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 03:43:02,634 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:02,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698668405] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:02,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:02,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4] total 10 [2025-01-09 03:43:02,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48882553] [2025-01-09 03:43:02,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:02,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:43:02,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:02,636 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:43:02,636 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:43:02,636 INFO L87 Difference]: Start difference. First operand 637 states and 1042 transitions. Second operand has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-01-09 03:43:02,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:02,765 INFO L93 Difference]: Finished difference Result 1116 states and 1844 transitions. [2025-01-09 03:43:02,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 03:43:02,766 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 111 [2025-01-09 03:43:02,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:02,769 INFO L225 Difference]: With dead ends: 1116 [2025-01-09 03:43:02,769 INFO L226 Difference]: Without dead ends: 657 [2025-01-09 03:43:02,771 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 107 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 03:43:02,771 INFO L435 NwaCegarLoop]: 874 mSDtfsCounter, 113 mSDsluCounter, 5149 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 6023 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 03:43:02,772 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 6023 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:43:02,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2025-01-09 03:43:02,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 637. [2025-01-09 03:43:02,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 516 states have (on average 1.6608527131782946) internal successors, (857), 539 states have internal predecessors, (857), 93 states have call successors, (93), 24 states have call predecessors, (93), 27 states have return successors, (92), 86 states have call predecessors, (92), 88 states have call successors, (92) [2025-01-09 03:43:02,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 1042 transitions. [2025-01-09 03:43:02,788 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 1042 transitions. Word has length 111 [2025-01-09 03:43:02,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:02,788 INFO L471 AbstractCegarLoop]: Abstraction has 637 states and 1042 transitions. [2025-01-09 03:43:02,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.142857142857142) internal successors, (85), 7 states have internal predecessors, (85), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-01-09 03:43:02,788 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 1042 transitions. [2025-01-09 03:43:02,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2025-01-09 03:43:02,790 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:02,790 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:43:02,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-01-09 03:43:02,995 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 03:43:02,995 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:02,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:02,996 INFO L85 PathProgramCache]: Analyzing trace with hash -147677436, now seen corresponding path program 1 times [2025-01-09 03:43:02,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:02,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932394253] [2025-01-09 03:43:02,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:02,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:03,006 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-01-09 03:43:03,009 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-01-09 03:43:03,009 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:03,009 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:03,051 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 03:43:03,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:03,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932394253] [2025-01-09 03:43:03,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932394253] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:03,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [317735129] [2025-01-09 03:43:03,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:03,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:03,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:03,056 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 03:43:03,059 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 03:43:03,172 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-01-09 03:43:03,303 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-01-09 03:43:03,303 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:03,304 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:03,308 INFO L256 TraceCheckSpWp]: Trace formula consists of 1780 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:43:03,311 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:03,326 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 03:43:03,327 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:03,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [317735129] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:03,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:03,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:43:03,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290358596] [2025-01-09 03:43:03,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:03,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:43:03,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:03,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:43:03,327 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:43:03,328 INFO L87 Difference]: Start difference. First operand 637 states and 1042 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:43:03,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:03,361 INFO L93 Difference]: Finished difference Result 1168 states and 1929 transitions. [2025-01-09 03:43:03,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:43:03,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2025-01-09 03:43:03,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:03,365 INFO L225 Difference]: With dead ends: 1168 [2025-01-09 03:43:03,365 INFO L226 Difference]: Without dead ends: 637 [2025-01-09 03:43:03,366 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 110 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 03:43:03,367 INFO L435 NwaCegarLoop]: 880 mSDtfsCounter, 13 mSDsluCounter, 1756 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2636 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 03:43:03,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2636 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:03,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2025-01-09 03:43:03,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 637. [2025-01-09 03:43:03,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 516 states have (on average 1.6531007751937985) internal successors, (853), 539 states have internal predecessors, (853), 93 states have call successors, (93), 24 states have call predecessors, (93), 27 states have return successors, (92), 86 states have call predecessors, (92), 88 states have call successors, (92) [2025-01-09 03:43:03,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 1038 transitions. [2025-01-09 03:43:03,382 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 1038 transitions. Word has length 111 [2025-01-09 03:43:03,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:03,382 INFO L471 AbstractCegarLoop]: Abstraction has 637 states and 1038 transitions. [2025-01-09 03:43:03,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:43:03,382 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 1038 transitions. [2025-01-09 03:43:03,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-01-09 03:43:03,384 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:03,384 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] [2025-01-09 03:43:03,392 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-01-09 03:43:03,588 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 03:43:03,588 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:03,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:03,588 INFO L85 PathProgramCache]: Analyzing trace with hash -991779805, now seen corresponding path program 1 times [2025-01-09 03:43:03,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:03,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612117960] [2025-01-09 03:43:03,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:03,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:03,602 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-01-09 03:43:03,606 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-01-09 03:43:03,606 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:03,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:03,644 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 03:43:03,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:03,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612117960] [2025-01-09 03:43:03,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612117960] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:03,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905633632] [2025-01-09 03:43:03,645 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:03,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:03,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:03,647 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 03:43:03,649 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 03:43:03,755 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-01-09 03:43:03,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-01-09 03:43:03,879 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:03,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:03,885 INFO L256 TraceCheckSpWp]: Trace formula consists of 1777 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 03:43:03,887 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:03,902 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 03:43:03,903 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:03,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905633632] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:03,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:03,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:43:03,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842320105] [2025-01-09 03:43:03,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:03,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:43:03,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:03,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:43:03,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:43:03,905 INFO L87 Difference]: Start difference. First operand 637 states and 1038 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:43:03,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:03,945 INFO L93 Difference]: Finished difference Result 1212 states and 1997 transitions. [2025-01-09 03:43:03,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:43:03,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 112 [2025-01-09 03:43:03,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:03,948 INFO L225 Difference]: With dead ends: 1212 [2025-01-09 03:43:03,948 INFO L226 Difference]: Without dead ends: 661 [2025-01-09 03:43:03,950 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 111 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 03:43:03,950 INFO L435 NwaCegarLoop]: 874 mSDtfsCounter, 7 mSDsluCounter, 1735 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2609 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 03:43:03,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2609 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:03,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2025-01-09 03:43:03,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 661. [2025-01-09 03:43:03,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 540 states have (on average 1.6314814814814815) internal successors, (881), 563 states have internal predecessors, (881), 93 states have call successors, (93), 24 states have call predecessors, (93), 27 states have return successors, (92), 86 states have call predecessors, (92), 88 states have call successors, (92) [2025-01-09 03:43:03,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 1066 transitions. [2025-01-09 03:43:03,986 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 1066 transitions. Word has length 112 [2025-01-09 03:43:03,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:03,986 INFO L471 AbstractCegarLoop]: Abstraction has 661 states and 1066 transitions. [2025-01-09 03:43:03,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:43:03,986 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 1066 transitions. [2025-01-09 03:43:03,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-01-09 03:43:03,988 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:03,989 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:43:04,000 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 03:43:04,189 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 03:43:04,190 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:04,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:04,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1430413554, now seen corresponding path program 1 times [2025-01-09 03:43:04,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:04,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959768182] [2025-01-09 03:43:04,190 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:04,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:04,200 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-01-09 03:43:04,203 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-01-09 03:43:04,203 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:04,203 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:04,248 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 03:43:04,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:04,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959768182] [2025-01-09 03:43:04,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959768182] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:04,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249095784] [2025-01-09 03:43:04,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:04,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:04,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:04,250 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 03:43:04,252 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 03:43:04,360 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-01-09 03:43:04,487 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-01-09 03:43:04,487 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:04,487 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:04,495 INFO L256 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 03:43:04,497 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:04,549 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 03:43:04,550 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:04,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249095784] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:04,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:04,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4] total 10 [2025-01-09 03:43:04,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699134163] [2025-01-09 03:43:04,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:04,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:43:04,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:04,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:43:04,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:43:04,551 INFO L87 Difference]: Start difference. First operand 661 states and 1066 transitions. Second operand has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-01-09 03:43:04,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:04,654 INFO L93 Difference]: Finished difference Result 1146 states and 1876 transitions. [2025-01-09 03:43:04,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 03:43:04,655 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 113 [2025-01-09 03:43:04,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:04,658 INFO L225 Difference]: With dead ends: 1146 [2025-01-09 03:43:04,658 INFO L226 Difference]: Without dead ends: 687 [2025-01-09 03:43:04,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 109 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 03:43:04,660 INFO L435 NwaCegarLoop]: 868 mSDtfsCounter, 119 mSDsluCounter, 5111 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 5979 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 03:43:04,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 5979 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:43:04,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2025-01-09 03:43:04,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 661. [2025-01-09 03:43:04,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 540 states have (on average 1.6314814814814815) internal successors, (881), 563 states have internal predecessors, (881), 93 states have call successors, (93), 24 states have call predecessors, (93), 27 states have return successors, (92), 86 states have call predecessors, (92), 88 states have call successors, (92) [2025-01-09 03:43:04,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 1066 transitions. [2025-01-09 03:43:04,673 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 1066 transitions. Word has length 113 [2025-01-09 03:43:04,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:04,674 INFO L471 AbstractCegarLoop]: Abstraction has 661 states and 1066 transitions. [2025-01-09 03:43:04,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 12.428571428571429) internal successors, (87), 7 states have internal predecessors, (87), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-01-09 03:43:04,674 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 1066 transitions. [2025-01-09 03:43:04,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-01-09 03:43:04,676 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:04,676 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] [2025-01-09 03:43:04,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2025-01-09 03:43:04,880 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 03:43:04,880 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:04,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:04,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1229385431, now seen corresponding path program 1 times [2025-01-09 03:43:04,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:04,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77736146] [2025-01-09 03:43:04,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:04,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:04,890 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-01-09 03:43:04,893 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-01-09 03:43:04,897 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:04,897 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:04,938 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 03:43:04,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:04,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77736146] [2025-01-09 03:43:04,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77736146] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:04,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1493839778] [2025-01-09 03:43:04,939 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:04,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:04,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:04,946 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 03:43:04,947 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 03:43:05,060 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-01-09 03:43:05,187 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-01-09 03:43:05,187 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:05,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:05,193 INFO L256 TraceCheckSpWp]: Trace formula consists of 1781 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 03:43:05,195 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:05,227 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 03:43:05,227 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:05,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1493839778] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:05,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:05,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:43:05,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868213411] [2025-01-09 03:43:05,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:05,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:43:05,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:05,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:43:05,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:43:05,228 INFO L87 Difference]: Start difference. First operand 661 states and 1066 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:43:05,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:05,251 INFO L93 Difference]: Finished difference Result 1117 states and 1836 transitions. [2025-01-09 03:43:05,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:43:05,251 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 113 [2025-01-09 03:43:05,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:05,254 INFO L225 Difference]: With dead ends: 1117 [2025-01-09 03:43:05,254 INFO L226 Difference]: Without dead ends: 663 [2025-01-09 03:43:05,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 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 03:43:05,255 INFO L435 NwaCegarLoop]: 888 mSDtfsCounter, 0 mSDsluCounter, 1770 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2658 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 03:43:05,255 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2658 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:05,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states. [2025-01-09 03:43:05,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 663. [2025-01-09 03:43:05,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 542 states have (on average 1.6291512915129152) internal successors, (883), 565 states have internal predecessors, (883), 93 states have call successors, (93), 24 states have call predecessors, (93), 27 states have return successors, (92), 86 states have call predecessors, (92), 88 states have call successors, (92) [2025-01-09 03:43:05,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 1068 transitions. [2025-01-09 03:43:05,297 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 1068 transitions. Word has length 113 [2025-01-09 03:43:05,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:05,297 INFO L471 AbstractCegarLoop]: Abstraction has 663 states and 1068 transitions. [2025-01-09 03:43:05,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:43:05,297 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 1068 transitions. [2025-01-09 03:43:05,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-01-09 03:43:05,299 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:05,299 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] [2025-01-09 03:43:05,309 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 03:43:05,500 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 03:43:05,500 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:05,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:05,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1372993768, now seen corresponding path program 1 times [2025-01-09 03:43:05,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:05,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891549139] [2025-01-09 03:43:05,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:05,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:05,512 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-01-09 03:43:05,515 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-01-09 03:43:05,515 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:05,515 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:05,565 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 03:43:05,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:05,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891549139] [2025-01-09 03:43:05,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891549139] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:05,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051051713] [2025-01-09 03:43:05,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:05,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:05,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:05,571 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 03:43:05,578 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 03:43:05,697 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-01-09 03:43:05,826 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-01-09 03:43:05,826 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:05,826 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:05,831 INFO L256 TraceCheckSpWp]: Trace formula consists of 1798 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-09 03:43:05,833 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:05,966 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 03:43:05,966 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:05,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051051713] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:05,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:05,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4] total 11 [2025-01-09 03:43:05,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5914079] [2025-01-09 03:43:05,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:05,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 03:43:05,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:05,967 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 03:43:05,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:43:05,967 INFO L87 Difference]: Start difference. First operand 663 states and 1068 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2025-01-09 03:43:08,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:08,819 INFO L93 Difference]: Finished difference Result 1814 states and 3018 transitions. [2025-01-09 03:43:08,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-09 03:43:08,820 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) Word has length 116 [2025-01-09 03:43:08,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:08,829 INFO L225 Difference]: With dead ends: 1814 [2025-01-09 03:43:08,830 INFO L226 Difference]: Without dead ends: 1358 [2025-01-09 03:43:08,832 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 111 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 03:43:08,834 INFO L435 NwaCegarLoop]: 949 mSDtfsCounter, 3579 mSDsluCounter, 3084 mSDsCounter, 0 mSdLazyCounter, 5413 mSolverCounterSat, 798 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3703 SdHoareTripleChecker+Valid, 4033 SdHoareTripleChecker+Invalid, 6211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 798 IncrementalHoareTripleChecker+Valid, 5413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:08,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3703 Valid, 4033 Invalid, 6211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [798 Valid, 5413 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2025-01-09 03:43:08,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1358 states. [2025-01-09 03:43:08,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1358 to 1339. [2025-01-09 03:43:08,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 1063 states have (on average 1.6331138287864535) internal successors, (1736), 1110 states have internal predecessors, (1736), 218 states have call successors, (218), 44 states have call predecessors, (218), 57 states have return successors, (251), 215 states have call predecessors, (251), 213 states have call successors, (251) [2025-01-09 03:43:08,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 2205 transitions. [2025-01-09 03:43:08,893 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 2205 transitions. Word has length 116 [2025-01-09 03:43:08,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:08,897 INFO L471 AbstractCegarLoop]: Abstraction has 1339 states and 2205 transitions. [2025-01-09 03:43:08,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (12), 4 states have call predecessors, (12), 5 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2025-01-09 03:43:08,897 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 2205 transitions. [2025-01-09 03:43:08,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2025-01-09 03:43:08,900 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:08,900 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] [2025-01-09 03:43:08,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2025-01-09 03:43:09,100 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 03:43:09,100 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:09,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:09,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1364572041, now seen corresponding path program 1 times [2025-01-09 03:43:09,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:09,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248067264] [2025-01-09 03:43:09,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:09,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:09,120 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-01-09 03:43:09,123 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-01-09 03:43:09,123 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:09,123 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:09,202 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 03:43:09,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:09,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248067264] [2025-01-09 03:43:09,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248067264] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:09,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711453575] [2025-01-09 03:43:09,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:09,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:09,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:09,204 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 03:43:09,210 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 03:43:09,324 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-01-09 03:43:09,453 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-01-09 03:43:09,453 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:09,453 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:09,457 INFO L256 TraceCheckSpWp]: Trace formula consists of 1799 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 03:43:09,459 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:09,494 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 03:43:09,494 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:09,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711453575] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:09,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:09,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2025-01-09 03:43:09,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314880604] [2025-01-09 03:43:09,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:09,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:43:09,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:09,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:43:09,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:43:09,495 INFO L87 Difference]: Start difference. First operand 1339 states and 2205 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-01-09 03:43:09,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:09,843 INFO L93 Difference]: Finished difference Result 3332 states and 5627 transitions. [2025-01-09 03:43:09,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 03:43:09,843 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 117 [2025-01-09 03:43:09,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:09,852 INFO L225 Difference]: With dead ends: 3332 [2025-01-09 03:43:09,852 INFO L226 Difference]: Without dead ends: 2312 [2025-01-09 03:43:09,856 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 116 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 03:43:09,857 INFO L435 NwaCegarLoop]: 1386 mSDtfsCounter, 730 mSDsluCounter, 3474 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 4860 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:09,857 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 4860 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 03:43:09,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2312 states. [2025-01-09 03:43:09,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2312 to 2293. [2025-01-09 03:43:09,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2293 states, 1793 states have (on average 1.641940881204685) internal successors, (2944), 1874 states have internal predecessors, (2944), 401 states have call successors, (401), 80 states have call predecessors, (401), 98 states have return successors, (472), 400 states have call predecessors, (472), 396 states have call successors, (472) [2025-01-09 03:43:09,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2293 states to 2293 states and 3817 transitions. [2025-01-09 03:43:09,919 INFO L78 Accepts]: Start accepts. Automaton has 2293 states and 3817 transitions. Word has length 117 [2025-01-09 03:43:09,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:09,919 INFO L471 AbstractCegarLoop]: Abstraction has 2293 states and 3817 transitions. [2025-01-09 03:43:09,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-01-09 03:43:09,919 INFO L276 IsEmpty]: Start isEmpty. Operand 2293 states and 3817 transitions. [2025-01-09 03:43:09,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2025-01-09 03:43:09,924 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:09,924 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] [2025-01-09 03:43:09,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2025-01-09 03:43:10,124 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 03:43:10,125 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:10,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:10,125 INFO L85 PathProgramCache]: Analyzing trace with hash -2118551960, now seen corresponding path program 1 times [2025-01-09 03:43:10,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:10,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610701511] [2025-01-09 03:43:10,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:10,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:10,136 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 119 statements into 1 equivalence classes. [2025-01-09 03:43:10,142 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 119 of 119 statements. [2025-01-09 03:43:10,142 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:10,143 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:10,227 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 03:43:10,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:10,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610701511] [2025-01-09 03:43:10,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610701511] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:10,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700570247] [2025-01-09 03:43:10,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:10,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:10,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:10,233 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 03:43:10,237 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 03:43:10,367 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 119 statements into 1 equivalence classes. [2025-01-09 03:43:10,510 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 119 of 119 statements. [2025-01-09 03:43:10,510 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:10,510 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:10,515 INFO L256 TraceCheckSpWp]: Trace formula consists of 1799 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 03:43:10,518 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:10,539 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 03:43:10,539 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:10,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [700570247] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:10,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:10,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2025-01-09 03:43:10,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976262208] [2025-01-09 03:43:10,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:10,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:43:10,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:10,540 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:43:10,541 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:43:10,541 INFO L87 Difference]: Start difference. First operand 2293 states and 3817 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:43:10,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:10,611 INFO L93 Difference]: Finished difference Result 4424 states and 7415 transitions. [2025-01-09 03:43:10,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:43:10,612 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 119 [2025-01-09 03:43:10,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:10,622 INFO L225 Difference]: With dead ends: 4424 [2025-01-09 03:43:10,623 INFO L226 Difference]: Without dead ends: 2329 [2025-01-09 03:43:10,629 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 118 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 03:43:10,631 INFO L435 NwaCegarLoop]: 873 mSDtfsCounter, 5 mSDsluCounter, 1735 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2608 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 03:43:10,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2608 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:10,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2329 states. [2025-01-09 03:43:10,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2329 to 2311. [2025-01-09 03:43:10,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2311 states, 1811 states have (on average 1.642186637217007) internal successors, (2974), 1892 states have internal predecessors, (2974), 401 states have call successors, (401), 80 states have call predecessors, (401), 98 states have return successors, (472), 400 states have call predecessors, (472), 396 states have call successors, (472) [2025-01-09 03:43:10,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2311 states to 2311 states and 3847 transitions. [2025-01-09 03:43:10,725 INFO L78 Accepts]: Start accepts. Automaton has 2311 states and 3847 transitions. Word has length 119 [2025-01-09 03:43:10,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:10,726 INFO L471 AbstractCegarLoop]: Abstraction has 2311 states and 3847 transitions. [2025-01-09 03:43:10,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-01-09 03:43:10,726 INFO L276 IsEmpty]: Start isEmpty. Operand 2311 states and 3847 transitions. [2025-01-09 03:43:10,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2025-01-09 03:43:10,731 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:10,731 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] [2025-01-09 03:43:10,742 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-01-09 03:43:10,936 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 03:43:10,936 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:10,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:10,937 INFO L85 PathProgramCache]: Analyzing trace with hash -298418450, now seen corresponding path program 1 times [2025-01-09 03:43:10,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:10,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38502432] [2025-01-09 03:43:10,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:10,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:10,947 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 120 statements into 1 equivalence classes. [2025-01-09 03:43:10,950 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 120 of 120 statements. [2025-01-09 03:43:10,950 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:10,950 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:11,033 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 03:43:11,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:11,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38502432] [2025-01-09 03:43:11,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38502432] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:11,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661431760] [2025-01-09 03:43:11,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:11,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:11,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:11,037 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 03:43:11,038 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 03:43:11,155 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 120 statements into 1 equivalence classes. [2025-01-09 03:43:11,282 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 120 of 120 statements. [2025-01-09 03:43:11,283 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:11,283 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:11,287 INFO L256 TraceCheckSpWp]: Trace formula consists of 1797 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-09 03:43:11,289 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:11,350 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 03:43:11,350 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:11,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661431760] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:11,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:11,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-01-09 03:43:11,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318029255] [2025-01-09 03:43:11,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:11,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:43:11,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:11,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:43:11,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:43:11,351 INFO L87 Difference]: Start difference. First operand 2311 states and 3847 transitions. Second operand has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-01-09 03:43:11,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:11,486 INFO L93 Difference]: Finished difference Result 4366 states and 7310 transitions. [2025-01-09 03:43:11,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 03:43:11,486 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 120 [2025-01-09 03:43:11,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:11,497 INFO L225 Difference]: With dead ends: 4366 [2025-01-09 03:43:11,497 INFO L226 Difference]: Without dead ends: 2381 [2025-01-09 03:43:11,504 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 116 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 03:43:11,505 INFO L435 NwaCegarLoop]: 868 mSDtfsCounter, 89 mSDsluCounter, 5132 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 6000 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 03:43:11,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 6000 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:43:11,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2381 states. [2025-01-09 03:43:11,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2381 to 2314. [2025-01-09 03:43:11,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2314 states, 1813 states have (on average 1.640926640926641) internal successors, (2975), 1895 states have internal predecessors, (2975), 401 states have call successors, (401), 80 states have call predecessors, (401), 99 states have return successors, (473), 400 states have call predecessors, (473), 396 states have call successors, (473) [2025-01-09 03:43:11,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2314 states to 2314 states and 3849 transitions. [2025-01-09 03:43:11,568 INFO L78 Accepts]: Start accepts. Automaton has 2314 states and 3849 transitions. Word has length 120 [2025-01-09 03:43:11,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:11,569 INFO L471 AbstractCegarLoop]: Abstraction has 2314 states and 3849 transitions. [2025-01-09 03:43:11,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-01-09 03:43:11,569 INFO L276 IsEmpty]: Start isEmpty. Operand 2314 states and 3849 transitions. [2025-01-09 03:43:11,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2025-01-09 03:43:11,576 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:11,576 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] [2025-01-09 03:43:11,584 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 03:43:11,780 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 03:43:11,780 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:11,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:11,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1337073748, now seen corresponding path program 1 times [2025-01-09 03:43:11,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:11,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602310715] [2025-01-09 03:43:11,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:11,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:11,804 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 120 statements into 1 equivalence classes. [2025-01-09 03:43:11,807 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 120 of 120 statements. [2025-01-09 03:43:11,807 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:11,808 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:11,883 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 03:43:11,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:11,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602310715] [2025-01-09 03:43:11,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602310715] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:11,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347370892] [2025-01-09 03:43:11,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:11,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:11,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:11,888 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 03:43:11,889 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 03:43:12,008 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 120 statements into 1 equivalence classes. [2025-01-09 03:43:12,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 120 of 120 statements. [2025-01-09 03:43:12,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:12,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:12,151 INFO L256 TraceCheckSpWp]: Trace formula consists of 1800 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 03:43:12,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:12,280 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 03:43:12,280 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:12,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347370892] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:12,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:12,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2025-01-09 03:43:12,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255927915] [2025-01-09 03:43:12,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:12,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:43:12,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:12,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:43:12,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:43:12,281 INFO L87 Difference]: Start difference. First operand 2314 states and 3849 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2025-01-09 03:43:12,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:12,561 INFO L93 Difference]: Finished difference Result 2521 states and 4197 transitions. [2025-01-09 03:43:12,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:43:12,561 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 120 [2025-01-09 03:43:12,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:12,577 INFO L225 Difference]: With dead ends: 2521 [2025-01-09 03:43:12,577 INFO L226 Difference]: Without dead ends: 2504 [2025-01-09 03:43:12,578 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 118 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 03:43:12,579 INFO L435 NwaCegarLoop]: 880 mSDtfsCounter, 872 mSDsluCounter, 740 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:12,579 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 1620 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 03:43:12,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2504 states. [2025-01-09 03:43:12,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2504 to 2326. [2025-01-09 03:43:12,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2326 states, 1825 states have (on average 1.6367123287671232) internal successors, (2987), 1907 states have internal predecessors, (2987), 401 states have call successors, (401), 80 states have call predecessors, (401), 99 states have return successors, (473), 400 states have call predecessors, (473), 396 states have call successors, (473) [2025-01-09 03:43:12,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2326 states to 2326 states and 3861 transitions. [2025-01-09 03:43:12,657 INFO L78 Accepts]: Start accepts. Automaton has 2326 states and 3861 transitions. Word has length 120 [2025-01-09 03:43:12,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:12,657 INFO L471 AbstractCegarLoop]: Abstraction has 2326 states and 3861 transitions. [2025-01-09 03:43:12,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2025-01-09 03:43:12,658 INFO L276 IsEmpty]: Start isEmpty. Operand 2326 states and 3861 transitions. [2025-01-09 03:43:12,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2025-01-09 03:43:12,663 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:12,663 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] [2025-01-09 03:43:12,673 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 03:43:12,864 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 03:43:12,864 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:12,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:12,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1366424185, now seen corresponding path program 1 times [2025-01-09 03:43:12,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:12,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957552027] [2025-01-09 03:43:12,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:12,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:12,874 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 126 statements into 1 equivalence classes. [2025-01-09 03:43:12,878 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 126 of 126 statements. [2025-01-09 03:43:12,878 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:12,878 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:13,038 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 03:43:13,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:13,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957552027] [2025-01-09 03:43:13,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957552027] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:13,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2398968] [2025-01-09 03:43:13,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:13,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:13,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:13,041 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 03:43:13,041 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 03:43:13,168 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 126 statements into 1 equivalence classes. [2025-01-09 03:43:13,312 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 126 of 126 statements. [2025-01-09 03:43:13,312 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:13,312 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:13,317 INFO L256 TraceCheckSpWp]: Trace formula consists of 1816 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 03:43:13,322 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:13,370 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 03:43:13,371 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:13,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2398968] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:13,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:13,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2025-01-09 03:43:13,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509030928] [2025-01-09 03:43:13,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:13,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:43:13,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:13,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:43:13,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:43:13,372 INFO L87 Difference]: Start difference. First operand 2326 states and 3861 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2025-01-09 03:43:13,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:13,424 INFO L93 Difference]: Finished difference Result 2343 states and 3881 transitions. [2025-01-09 03:43:13,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:43:13,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) Word has length 126 [2025-01-09 03:43:13,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:13,440 INFO L225 Difference]: With dead ends: 2343 [2025-01-09 03:43:13,440 INFO L226 Difference]: Without dead ends: 2326 [2025-01-09 03:43:13,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:43:13,442 INFO L435 NwaCegarLoop]: 887 mSDtfsCounter, 0 mSDsluCounter, 2657 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3544 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:13,442 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3544 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:13,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2326 states. [2025-01-09 03:43:13,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2326 to 2326. [2025-01-09 03:43:13,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2326 states, 1825 states have (on average 1.6334246575342466) internal successors, (2981), 1907 states have internal predecessors, (2981), 401 states have call successors, (401), 80 states have call predecessors, (401), 99 states have return successors, (473), 400 states have call predecessors, (473), 396 states have call successors, (473) [2025-01-09 03:43:13,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2326 states to 2326 states and 3855 transitions. [2025-01-09 03:43:13,496 INFO L78 Accepts]: Start accepts. Automaton has 2326 states and 3855 transitions. Word has length 126 [2025-01-09 03:43:13,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:13,496 INFO L471 AbstractCegarLoop]: Abstraction has 2326 states and 3855 transitions. [2025-01-09 03:43:13,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 1 states have call successors, (12) [2025-01-09 03:43:13,496 INFO L276 IsEmpty]: Start isEmpty. Operand 2326 states and 3855 transitions. [2025-01-09 03:43:13,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-01-09 03:43:13,502 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:13,503 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] [2025-01-09 03:43:13,510 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 03:43:13,703 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 03:43:13,703 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:13,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:13,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1825224645, now seen corresponding path program 1 times [2025-01-09 03:43:13,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:13,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883475312] [2025-01-09 03:43:13,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:13,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:13,714 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-01-09 03:43:13,719 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-01-09 03:43:13,719 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:13,719 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:13,880 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 03:43:13,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:13,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883475312] [2025-01-09 03:43:13,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883475312] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:13,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2014175209] [2025-01-09 03:43:13,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:13,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:13,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:13,883 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 03:43:13,884 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 03:43:14,009 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-01-09 03:43:14,139 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-01-09 03:43:14,139 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:14,140 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:14,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 1853 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-09 03:43:14,150 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:14,192 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 03:43:14,194 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:14,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2014175209] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:14,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:14,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 7 [2025-01-09 03:43:14,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498130390] [2025-01-09 03:43:14,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:14,195 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:43:14,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:14,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:43:14,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:43:14,195 INFO L87 Difference]: Start difference. First operand 2326 states and 3855 transitions. Second operand has 7 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:43:14,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:14,312 INFO L93 Difference]: Finished difference Result 4507 states and 7503 transitions. [2025-01-09 03:43:14,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:43:14,313 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) Word has length 137 [2025-01-09 03:43:14,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:14,323 INFO L225 Difference]: With dead ends: 4507 [2025-01-09 03:43:14,323 INFO L226 Difference]: Without dead ends: 2406 [2025-01-09 03:43:14,329 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 138 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 03:43:14,330 INFO L435 NwaCegarLoop]: 878 mSDtfsCounter, 119 mSDsluCounter, 4288 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 5166 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 03:43:14,331 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 5166 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:14,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2025-01-09 03:43:14,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 2326. [2025-01-09 03:43:14,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2326 states, 1825 states have (on average 1.6334246575342466) internal successors, (2981), 1907 states have internal predecessors, (2981), 401 states have call successors, (401), 80 states have call predecessors, (401), 99 states have return successors, (473), 400 states have call predecessors, (473), 396 states have call successors, (473) [2025-01-09 03:43:14,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2326 states to 2326 states and 3855 transitions. [2025-01-09 03:43:14,385 INFO L78 Accepts]: Start accepts. Automaton has 2326 states and 3855 transitions. Word has length 137 [2025-01-09 03:43:14,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:14,385 INFO L471 AbstractCegarLoop]: Abstraction has 2326 states and 3855 transitions. [2025-01-09 03:43:14,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 3 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 3 states have call successors, (13) [2025-01-09 03:43:14,385 INFO L276 IsEmpty]: Start isEmpty. Operand 2326 states and 3855 transitions. [2025-01-09 03:43:14,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-01-09 03:43:14,391 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:14,391 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] [2025-01-09 03:43:14,399 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 03:43:14,592 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 03:43:14,593 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:14,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:14,594 INFO L85 PathProgramCache]: Analyzing trace with hash 346711776, now seen corresponding path program 1 times [2025-01-09 03:43:14,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:14,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729051269] [2025-01-09 03:43:14,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:14,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:14,605 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-01-09 03:43:14,609 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-01-09 03:43:14,609 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:14,609 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:14,652 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 03:43:14,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:14,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729051269] [2025-01-09 03:43:14,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729051269] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:14,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394549757] [2025-01-09 03:43:14,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:14,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:14,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:14,655 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 03:43:14,656 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 03:43:14,778 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-01-09 03:43:14,913 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-01-09 03:43:14,913 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:14,913 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:14,919 INFO L256 TraceCheckSpWp]: Trace formula consists of 1854 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 03:43:14,922 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:14,941 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 03:43:14,941 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:14,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394549757] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:14,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:14,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2025-01-09 03:43:14,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758330468] [2025-01-09 03:43:14,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:14,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:43:14,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:14,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:43:14,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:43:14,942 INFO L87 Difference]: Start difference. First operand 2326 states and 3855 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:43:15,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:15,001 INFO L93 Difference]: Finished difference Result 4514 states and 7512 transitions. [2025-01-09 03:43:15,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:43:15,002 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) Word has length 137 [2025-01-09 03:43:15,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:15,021 INFO L225 Difference]: With dead ends: 4514 [2025-01-09 03:43:15,021 INFO L226 Difference]: Without dead ends: 2156 [2025-01-09 03:43:15,032 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 138 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 03:43:15,036 INFO L435 NwaCegarLoop]: 881 mSDtfsCounter, 7 mSDsluCounter, 1755 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2636 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 03:43:15,036 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2636 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:15,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states. [2025-01-09 03:43:15,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 2156. [2025-01-09 03:43:15,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 1670 states have (on average 1.6407185628742516) internal successors, (2740), 1746 states have internal predecessors, (2740), 396 states have call successors, (396), 77 states have call predecessors, (396), 89 states have return successors, (459), 394 states have call predecessors, (459), 391 states have call successors, (459) [2025-01-09 03:43:15,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 3595 transitions. [2025-01-09 03:43:15,146 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 3595 transitions. Word has length 137 [2025-01-09 03:43:15,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:15,146 INFO L471 AbstractCegarLoop]: Abstraction has 2156 states and 3595 transitions. [2025-01-09 03:43:15,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 1 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:43:15,146 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 3595 transitions. [2025-01-09 03:43:15,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2025-01-09 03:43:15,159 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:15,160 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] [2025-01-09 03:43:15,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2025-01-09 03:43:15,360 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 03:43:15,360 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:15,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:15,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1177178336, now seen corresponding path program 1 times [2025-01-09 03:43:15,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:15,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927577711] [2025-01-09 03:43:15,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:15,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:15,371 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-01-09 03:43:15,378 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-01-09 03:43:15,379 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:15,379 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:15,490 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 03:43:15,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:15,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927577711] [2025-01-09 03:43:15,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927577711] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:15,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091613787] [2025-01-09 03:43:15,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:15,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:15,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:15,498 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 03:43:15,499 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 03:43:15,622 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-01-09 03:43:15,753 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-01-09 03:43:15,753 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:15,753 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:15,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 1859 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:43:15,762 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:15,787 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 03:43:15,787 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:15,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091613787] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:15,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:15,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2025-01-09 03:43:15,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220869108] [2025-01-09 03:43:15,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:15,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:43:15,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:15,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:43:15,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:43:15,788 INFO L87 Difference]: Start difference. First operand 2156 states and 3595 transitions. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:43:15,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:15,888 INFO L93 Difference]: Finished difference Result 4314 states and 7203 transitions. [2025-01-09 03:43:15,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:43:15,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 139 [2025-01-09 03:43:15,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:15,899 INFO L225 Difference]: With dead ends: 4314 [2025-01-09 03:43:15,899 INFO L226 Difference]: Without dead ends: 2189 [2025-01-09 03:43:15,905 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 139 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 03:43:15,905 INFO L435 NwaCegarLoop]: 864 mSDtfsCounter, 128 mSDsluCounter, 1651 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 2515 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 03:43:15,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 2515 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:43:15,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2189 states. [2025-01-09 03:43:15,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2189 to 2156. [2025-01-09 03:43:15,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 1670 states have (on average 1.6401197604790418) internal successors, (2739), 1746 states have internal predecessors, (2739), 396 states have call successors, (396), 77 states have call predecessors, (396), 89 states have return successors, (459), 394 states have call predecessors, (459), 391 states have call successors, (459) [2025-01-09 03:43:15,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 3594 transitions. [2025-01-09 03:43:15,954 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 3594 transitions. Word has length 139 [2025-01-09 03:43:15,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:15,954 INFO L471 AbstractCegarLoop]: Abstraction has 2156 states and 3594 transitions. [2025-01-09 03:43:15,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:43:15,954 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 3594 transitions. [2025-01-09 03:43:15,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-01-09 03:43:15,958 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:15,958 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] [2025-01-09 03:43:15,968 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 03:43:16,159 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 03:43:16,159 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:16,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:16,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1239256054, now seen corresponding path program 1 times [2025-01-09 03:43:16,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:16,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75641233] [2025-01-09 03:43:16,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:16,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:16,173 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-01-09 03:43:16,182 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-01-09 03:43:16,182 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:16,182 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:16,266 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 03:43:16,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:16,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75641233] [2025-01-09 03:43:16,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75641233] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:16,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:43:16,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 03:43:16,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763889803] [2025-01-09 03:43:16,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:16,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:43:16,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:16,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:43:16,268 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:43:16,268 INFO L87 Difference]: Start difference. First operand 2156 states and 3594 transitions. Second operand has 7 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 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 03:43:16,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:16,345 INFO L93 Difference]: Finished difference Result 3071 states and 5115 transitions. [2025-01-09 03:43:16,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:43:16,346 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 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 140 [2025-01-09 03:43:16,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:16,355 INFO L225 Difference]: With dead ends: 3071 [2025-01-09 03:43:16,355 INFO L226 Difference]: Without dead ends: 2191 [2025-01-09 03:43:16,358 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 03:43:16,359 INFO L435 NwaCegarLoop]: 877 mSDtfsCounter, 115 mSDsluCounter, 4283 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 5160 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 03:43:16,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 5160 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:16,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2191 states. [2025-01-09 03:43:16,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2191 to 2156. [2025-01-09 03:43:16,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 1670 states have (on average 1.6401197604790418) internal successors, (2739), 1746 states have internal predecessors, (2739), 396 states have call successors, (396), 77 states have call predecessors, (396), 89 states have return successors, (459), 394 states have call predecessors, (459), 391 states have call successors, (459) [2025-01-09 03:43:16,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 3594 transitions. [2025-01-09 03:43:16,451 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 3594 transitions. Word has length 140 [2025-01-09 03:43:16,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:16,451 INFO L471 AbstractCegarLoop]: Abstraction has 2156 states and 3594 transitions. [2025-01-09 03:43:16,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 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 03:43:16,451 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 3594 transitions. [2025-01-09 03:43:16,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-01-09 03:43:16,455 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:16,455 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] [2025-01-09 03:43:16,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-01-09 03:43:16,455 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:16,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:16,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1226977775, now seen corresponding path program 1 times [2025-01-09 03:43:16,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:16,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376492343] [2025-01-09 03:43:16,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:16,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:16,467 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-01-09 03:43:16,471 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-01-09 03:43:16,472 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:16,472 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:16,510 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 03:43:16,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:16,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376492343] [2025-01-09 03:43:16,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376492343] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:16,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:43:16,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:43:16,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287011576] [2025-01-09 03:43:16,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:16,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:43:16,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:16,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:43:16,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:43:16,511 INFO L87 Difference]: Start difference. First operand 2156 states and 3594 transitions. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:43:16,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:16,554 INFO L93 Difference]: Finished difference Result 3120 states and 5197 transitions. [2025-01-09 03:43:16,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:43:16,554 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 140 [2025-01-09 03:43:16,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:16,560 INFO L225 Difference]: With dead ends: 3120 [2025-01-09 03:43:16,560 INFO L226 Difference]: Without dead ends: 979 [2025-01-09 03:43:16,564 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 03:43:16,566 INFO L435 NwaCegarLoop]: 879 mSDtfsCounter, 8 mSDsluCounter, 1754 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2633 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 03:43:16,566 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2633 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:16,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2025-01-09 03:43:16,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 979. [2025-01-09 03:43:16,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 775 states have (on average 1.632258064516129) internal successors, (1265), 808 states have internal predecessors, (1265), 162 states have call successors, (162), 42 states have call predecessors, (162), 41 states have return successors, (166), 154 states have call predecessors, (166), 157 states have call successors, (166) [2025-01-09 03:43:16,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 1593 transitions. [2025-01-09 03:43:16,587 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 1593 transitions. Word has length 140 [2025-01-09 03:43:16,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:16,587 INFO L471 AbstractCegarLoop]: Abstraction has 979 states and 1593 transitions. [2025-01-09 03:43:16,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:43:16,587 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 1593 transitions. [2025-01-09 03:43:16,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-01-09 03:43:16,589 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:16,589 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] [2025-01-09 03:43:16,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2025-01-09 03:43:16,589 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:16,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:16,590 INFO L85 PathProgramCache]: Analyzing trace with hash 162002929, now seen corresponding path program 1 times [2025-01-09 03:43:16,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:16,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853170789] [2025-01-09 03:43:16,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:16,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:16,600 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-01-09 03:43:16,607 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-01-09 03:43:16,607 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:16,607 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:16,695 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 03:43:16,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:16,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853170789] [2025-01-09 03:43:16,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853170789] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:16,696 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:43:16,696 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 03:43:16,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639954813] [2025-01-09 03:43:16,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:16,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:43:16,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:16,696 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:43:16,696 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:43:16,697 INFO L87 Difference]: Start difference. First operand 979 states and 1593 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 5 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2025-01-09 03:43:18,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:18,688 INFO L93 Difference]: Finished difference Result 3196 states and 5344 transitions. [2025-01-09 03:43:18,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-09 03:43:18,688 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 5 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) Word has length 141 [2025-01-09 03:43:18,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:18,699 INFO L225 Difference]: With dead ends: 3196 [2025-01-09 03:43:18,699 INFO L226 Difference]: Without dead ends: 2321 [2025-01-09 03:43:18,702 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2025-01-09 03:43:18,702 INFO L435 NwaCegarLoop]: 405 mSDtfsCounter, 2362 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 3638 mSolverCounterSat, 483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2441 SdHoareTripleChecker+Valid, 1912 SdHoareTripleChecker+Invalid, 4121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 483 IncrementalHoareTripleChecker+Valid, 3638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:18,702 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2441 Valid, 1912 Invalid, 4121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [483 Valid, 3638 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-01-09 03:43:18,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2321 states. [2025-01-09 03:43:18,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2321 to 2176. [2025-01-09 03:43:18,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2176 states, 1722 states have (on average 1.656794425087108) internal successors, (2853), 1794 states have internal predecessors, (2853), 358 states have call successors, (358), 86 states have call predecessors, (358), 95 states have return successors, (400), 345 states have call predecessors, (400), 353 states have call successors, (400) [2025-01-09 03:43:18,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2176 states to 2176 states and 3611 transitions. [2025-01-09 03:43:18,792 INFO L78 Accepts]: Start accepts. Automaton has 2176 states and 3611 transitions. Word has length 141 [2025-01-09 03:43:18,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:18,793 INFO L471 AbstractCegarLoop]: Abstraction has 2176 states and 3611 transitions. [2025-01-09 03:43:18,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 5 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 5 states have call predecessors, (13), 4 states have call successors, (13) [2025-01-09 03:43:18,793 INFO L276 IsEmpty]: Start isEmpty. Operand 2176 states and 3611 transitions. [2025-01-09 03:43:18,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2025-01-09 03:43:18,795 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:18,795 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] [2025-01-09 03:43:18,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-01-09 03:43:18,795 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:18,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:18,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1566063127, now seen corresponding path program 1 times [2025-01-09 03:43:18,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:18,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64068036] [2025-01-09 03:43:18,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:18,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:18,806 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 146 statements into 1 equivalence classes. [2025-01-09 03:43:18,813 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 146 of 146 statements. [2025-01-09 03:43:18,813 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:18,813 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:18,872 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 03:43:18,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:18,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64068036] [2025-01-09 03:43:18,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64068036] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:18,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:43:18,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 03:43:18,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066080135] [2025-01-09 03:43:18,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:18,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:43:18,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:18,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:43:18,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:43:18,874 INFO L87 Difference]: Start difference. First operand 2176 states and 3611 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 03:43:18,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:18,941 INFO L93 Difference]: Finished difference Result 4273 states and 7149 transitions. [2025-01-09 03:43:18,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:43:18,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 146 [2025-01-09 03:43:18,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:18,951 INFO L225 Difference]: With dead ends: 4273 [2025-01-09 03:43:18,952 INFO L226 Difference]: Without dead ends: 2201 [2025-01-09 03:43:18,956 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 03:43:18,957 INFO L435 NwaCegarLoop]: 846 mSDtfsCounter, 0 mSDsluCounter, 2508 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3354 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:18,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3354 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:18,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2201 states. [2025-01-09 03:43:19,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2201 to 2195. [2025-01-09 03:43:19,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2195 states, 1737 states have (on average 1.6505469199769718) internal successors, (2867), 1808 states have internal predecessors, (2867), 357 states have call successors, (357), 86 states have call predecessors, (357), 100 states have return successors, (414), 350 states have call predecessors, (414), 352 states have call successors, (414) [2025-01-09 03:43:19,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2195 states to 2195 states and 3638 transitions. [2025-01-09 03:43:19,009 INFO L78 Accepts]: Start accepts. Automaton has 2195 states and 3638 transitions. Word has length 146 [2025-01-09 03:43:19,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:19,010 INFO L471 AbstractCegarLoop]: Abstraction has 2195 states and 3638 transitions. [2025-01-09 03:43:19,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 03:43:19,010 INFO L276 IsEmpty]: Start isEmpty. Operand 2195 states and 3638 transitions. [2025-01-09 03:43:19,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2025-01-09 03:43:19,012 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:19,012 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 03:43:19,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2025-01-09 03:43:19,012 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:19,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:19,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1159905407, now seen corresponding path program 1 times [2025-01-09 03:43:19,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:19,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622500206] [2025-01-09 03:43:19,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:19,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:19,022 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes. [2025-01-09 03:43:19,029 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements. [2025-01-09 03:43:19,029 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:19,029 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:19,178 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 03:43:19,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:19,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622500206] [2025-01-09 03:43:19,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622500206] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:19,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:43:19,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 03:43:19,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033858549] [2025-01-09 03:43:19,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:19,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:43:19,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:19,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:43:19,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:43:19,179 INFO L87 Difference]: Start difference. First operand 2195 states and 3638 transitions. Second operand has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 7 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2025-01-09 03:43:21,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:21,033 INFO L93 Difference]: Finished difference Result 7094 states and 11950 transitions. [2025-01-09 03:43:21,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:43:21,034 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 7 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 150 [2025-01-09 03:43:21,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:21,070 INFO L225 Difference]: With dead ends: 7094 [2025-01-09 03:43:21,071 INFO L226 Difference]: Without dead ends: 4998 [2025-01-09 03:43:21,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 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 03:43:21,078 INFO L435 NwaCegarLoop]: 597 mSDtfsCounter, 2304 mSDsluCounter, 1402 mSDsCounter, 0 mSdLazyCounter, 3512 mSolverCounterSat, 474 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2450 SdHoareTripleChecker+Valid, 1999 SdHoareTripleChecker+Invalid, 3986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 474 IncrementalHoareTripleChecker+Valid, 3512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:21,078 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2450 Valid, 1999 Invalid, 3986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [474 Valid, 3512 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-01-09 03:43:21,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4998 states. [2025-01-09 03:43:21,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4998 to 4899. [2025-01-09 03:43:21,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4899 states, 3838 states have (on average 1.6492965085982283) internal successors, (6330), 4001 states have internal predecessors, (6330), 836 states have call successors, (836), 192 states have call predecessors, (836), 224 states have return successors, (1025), 827 states have call predecessors, (1025), 831 states have call successors, (1025) [2025-01-09 03:43:21,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4899 states to 4899 states and 8191 transitions. [2025-01-09 03:43:21,243 INFO L78 Accepts]: Start accepts. Automaton has 4899 states and 8191 transitions. Word has length 150 [2025-01-09 03:43:21,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:21,245 INFO L471 AbstractCegarLoop]: Abstraction has 4899 states and 8191 transitions. [2025-01-09 03:43:21,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.25) internal successors, (106), 8 states have internal predecessors, (106), 7 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2025-01-09 03:43:21,245 INFO L276 IsEmpty]: Start isEmpty. Operand 4899 states and 8191 transitions. [2025-01-09 03:43:21,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2025-01-09 03:43:21,247 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:21,247 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:43:21,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2025-01-09 03:43:21,248 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:21,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:21,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1303144821, now seen corresponding path program 1 times [2025-01-09 03:43:21,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:21,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714492031] [2025-01-09 03:43:21,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:21,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:21,265 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-01-09 03:43:21,276 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-01-09 03:43:21,277 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:21,277 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:21,430 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 03:43:21,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:21,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714492031] [2025-01-09 03:43:21,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714492031] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:21,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248588769] [2025-01-09 03:43:21,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:21,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:21,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:21,433 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 03:43:21,469 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 03:43:21,603 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 153 statements into 1 equivalence classes. [2025-01-09 03:43:21,736 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 153 of 153 statements. [2025-01-09 03:43:21,737 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:21,737 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:21,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 1891 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:43:21,745 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:21,771 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 03:43:21,771 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:21,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248588769] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:21,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:21,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2025-01-09 03:43:21,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911642165] [2025-01-09 03:43:21,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:21,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:43:21,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:21,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:43:21,773 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:43:21,773 INFO L87 Difference]: Start difference. First operand 4899 states and 8191 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2025-01-09 03:43:21,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:21,990 INFO L93 Difference]: Finished difference Result 9504 states and 16155 transitions. [2025-01-09 03:43:21,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:43:21,991 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 153 [2025-01-09 03:43:21,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:22,091 INFO L225 Difference]: With dead ends: 9504 [2025-01-09 03:43:22,091 INFO L226 Difference]: Without dead ends: 4957 [2025-01-09 03:43:22,113 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 154 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 03:43:22,115 INFO L435 NwaCegarLoop]: 917 mSDtfsCounter, 257 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 2454 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 03:43:22,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 2454 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:43:22,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4957 states. [2025-01-09 03:43:22,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4957 to 4903. [2025-01-09 03:43:22,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4903 states, 3840 states have (on average 1.6346354166666666) internal successors, (6277), 4005 states have internal predecessors, (6277), 836 states have call successors, (836), 192 states have call predecessors, (836), 226 states have return successors, (1029), 827 states have call predecessors, (1029), 831 states have call successors, (1029) [2025-01-09 03:43:22,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4903 states to 4903 states and 8142 transitions. [2025-01-09 03:43:22,280 INFO L78 Accepts]: Start accepts. Automaton has 4903 states and 8142 transitions. Word has length 153 [2025-01-09 03:43:22,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:22,281 INFO L471 AbstractCegarLoop]: Abstraction has 4903 states and 8142 transitions. [2025-01-09 03:43:22,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 3 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2025-01-09 03:43:22,281 INFO L276 IsEmpty]: Start isEmpty. Operand 4903 states and 8142 transitions. [2025-01-09 03:43:22,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2025-01-09 03:43:22,283 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:22,283 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] [2025-01-09 03:43:22,296 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 03:43:22,488 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,30 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:22,488 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:22,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:22,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1632820275, now seen corresponding path program 1 times [2025-01-09 03:43:22,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:22,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465098292] [2025-01-09 03:43:22,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:22,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:22,507 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 157 statements into 1 equivalence classes. [2025-01-09 03:43:22,566 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 157 of 157 statements. [2025-01-09 03:43:22,566 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:22,566 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:22,706 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 03:43:22,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:22,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465098292] [2025-01-09 03:43:22,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465098292] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:22,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880499222] [2025-01-09 03:43:22,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:22,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:22,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:22,715 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 03:43:22,717 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 03:43:22,851 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 157 statements into 1 equivalence classes. [2025-01-09 03:43:22,988 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 157 of 157 statements. [2025-01-09 03:43:22,988 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:22,988 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:22,995 INFO L256 TraceCheckSpWp]: Trace formula consists of 1907 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:43:22,997 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:23,069 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 03:43:23,069 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:23,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880499222] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:23,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:23,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2025-01-09 03:43:23,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835579414] [2025-01-09 03:43:23,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:23,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:43:23,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:23,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:43:23,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:43:23,074 INFO L87 Difference]: Start difference. First operand 4903 states and 8142 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 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 03:43:23,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:23,376 INFO L93 Difference]: Finished difference Result 9759 states and 16437 transitions. [2025-01-09 03:43:23,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:43:23,377 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 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 157 [2025-01-09 03:43:23,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:23,395 INFO L225 Difference]: With dead ends: 9759 [2025-01-09 03:43:23,395 INFO L226 Difference]: Without dead ends: 4953 [2025-01-09 03:43:23,417 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 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 03:43:23,418 INFO L435 NwaCegarLoop]: 824 mSDtfsCounter, 14 mSDsluCounter, 1614 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 2438 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 03:43:23,418 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 2438 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:43:23,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4953 states. [2025-01-09 03:43:23,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4953 to 4953. [2025-01-09 03:43:23,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4953 states, 3880 states have (on average 1.6252577319587629) internal successors, (6306), 4050 states have internal predecessors, (6306), 836 states have call successors, (836), 197 states have call predecessors, (836), 236 states have return successors, (1039), 827 states have call predecessors, (1039), 831 states have call successors, (1039) [2025-01-09 03:43:23,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4953 states to 4953 states and 8181 transitions. [2025-01-09 03:43:23,712 INFO L78 Accepts]: Start accepts. Automaton has 4953 states and 8181 transitions. Word has length 157 [2025-01-09 03:43:23,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:23,713 INFO L471 AbstractCegarLoop]: Abstraction has 4953 states and 8181 transitions. [2025-01-09 03:43:23,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 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 03:43:23,713 INFO L276 IsEmpty]: Start isEmpty. Operand 4953 states and 8181 transitions. [2025-01-09 03:43:23,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-01-09 03:43:23,719 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:23,719 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] [2025-01-09 03:43:23,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2025-01-09 03:43:23,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2025-01-09 03:43:23,923 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:23,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:23,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1269884420, now seen corresponding path program 1 times [2025-01-09 03:43:23,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:23,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360828595] [2025-01-09 03:43:23,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:23,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:23,946 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-01-09 03:43:23,959 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-01-09 03:43:23,959 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:23,959 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:24,095 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 03:43:24,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:24,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360828595] [2025-01-09 03:43:24,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360828595] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:24,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:43:24,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 03:43:24,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663674747] [2025-01-09 03:43:24,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:24,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:43:24,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:24,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:43:24,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:43:24,096 INFO L87 Difference]: Start difference. First operand 4953 states and 8181 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 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 03:43:25,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:25,768 INFO L93 Difference]: Finished difference Result 9524 states and 15825 transitions. [2025-01-09 03:43:25,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-09 03:43:25,768 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 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 158 [2025-01-09 03:43:25,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:25,792 INFO L225 Difference]: With dead ends: 9524 [2025-01-09 03:43:25,792 INFO L226 Difference]: Without dead ends: 5477 [2025-01-09 03:43:25,804 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2025-01-09 03:43:25,804 INFO L435 NwaCegarLoop]: 380 mSDtfsCounter, 2046 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 3172 mSolverCounterSat, 449 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2122 SdHoareTripleChecker+Valid, 1684 SdHoareTripleChecker+Invalid, 3621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 449 IncrementalHoareTripleChecker+Valid, 3172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:25,804 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2122 Valid, 1684 Invalid, 3621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [449 Valid, 3172 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-01-09 03:43:25,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5477 states. [2025-01-09 03:43:26,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5477 to 5102. [2025-01-09 03:43:26,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5102 states, 3990 states have (on average 1.6160401002506266) internal successors, (6448), 4170 states have internal predecessors, (6448), 850 states have call successors, (850), 212 states have call predecessors, (850), 261 states have return successors, (1090), 841 states have call predecessors, (1090), 845 states have call successors, (1090) [2025-01-09 03:43:26,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5102 states to 5102 states and 8388 transitions. [2025-01-09 03:43:26,094 INFO L78 Accepts]: Start accepts. Automaton has 5102 states and 8388 transitions. Word has length 158 [2025-01-09 03:43:26,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:26,094 INFO L471 AbstractCegarLoop]: Abstraction has 5102 states and 8388 transitions. [2025-01-09 03:43:26,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 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 03:43:26,099 INFO L276 IsEmpty]: Start isEmpty. Operand 5102 states and 8388 transitions. [2025-01-09 03:43:26,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [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 [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] [2025-01-09 03:43:26,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2025-01-09 03:43:26,101 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:26,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:26,101 INFO L85 PathProgramCache]: Analyzing trace with hash -256671088, now seen corresponding path program 1 times [2025-01-09 03:43:26,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:26,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784870280] [2025-01-09 03:43:26,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:26,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:26,114 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-01-09 03:43:26,121 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-01-09 03:43:26,121 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:26,121 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:26,247 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-01-09 03:43:26,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:26,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784870280] [2025-01-09 03:43:26,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784870280] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:26,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600118717] [2025-01-09 03:43:26,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:26,247 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:26,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:26,249 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 03:43:26,251 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 03:43:26,390 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-01-09 03:43:26,522 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-01-09 03:43:26,522 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:26,522 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:26,528 INFO L256 TraceCheckSpWp]: Trace formula consists of 1925 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 03:43:26,530 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:26,540 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-01-09 03:43:26,540 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:26,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600118717] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:26,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:26,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2025-01-09 03:43:26,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556701072] [2025-01-09 03:43:26,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:26,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:43:26,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:26,541 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:43:26,541 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:43:26,541 INFO L87 Difference]: Start difference. First operand 5102 states and 8388 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 03:43:26,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:26,757 INFO L93 Difference]: Finished difference Result 10667 states and 17667 transitions. [2025-01-09 03:43:26,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:43:26,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 163 [2025-01-09 03:43:26,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:26,783 INFO L225 Difference]: With dead ends: 10667 [2025-01-09 03:43:26,784 INFO L226 Difference]: Without dead ends: 6444 [2025-01-09 03:43:26,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:43:26,796 INFO L435 NwaCegarLoop]: 1324 mSDtfsCounter, 745 mSDsluCounter, 827 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 745 SdHoareTripleChecker+Valid, 2151 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:26,796 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [745 Valid, 2151 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:26,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6444 states. [2025-01-09 03:43:27,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6444 to 6111. [2025-01-09 03:43:27,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6111 states, 4791 states have (on average 1.6186599874765184) internal successors, (7755), 4994 states have internal predecessors, (7755), 1013 states have call successors, (1013), 255 states have call predecessors, (1013), 306 states have return successors, (1288), 1007 states have call predecessors, (1288), 1008 states have call successors, (1288) [2025-01-09 03:43:27,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6111 states to 6111 states and 10056 transitions. [2025-01-09 03:43:27,041 INFO L78 Accepts]: Start accepts. Automaton has 6111 states and 10056 transitions. Word has length 163 [2025-01-09 03:43:27,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:27,042 INFO L471 AbstractCegarLoop]: Abstraction has 6111 states and 10056 transitions. [2025-01-09 03:43:27,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 03:43:27,042 INFO L276 IsEmpty]: Start isEmpty. Operand 6111 states and 10056 transitions. [2025-01-09 03:43:27,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2025-01-09 03:43:27,044 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:27,044 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] [2025-01-09 03:43:27,053 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 03:43:27,244 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,SelfDestructingSolverStorable36 [2025-01-09 03:43:27,245 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:27,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:27,246 INFO L85 PathProgramCache]: Analyzing trace with hash -2102038254, now seen corresponding path program 1 times [2025-01-09 03:43:27,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:27,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127866508] [2025-01-09 03:43:27,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:27,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:27,258 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-01-09 03:43:27,266 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-01-09 03:43:27,266 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:27,266 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:27,481 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 03:43:27,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:27,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127866508] [2025-01-09 03:43:27,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127866508] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:27,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:43:27,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 03:43:27,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067982819] [2025-01-09 03:43:27,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:27,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:43:27,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:27,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:43:27,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:43:27,484 INFO L87 Difference]: Start difference. First operand 6111 states and 10056 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 4 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 03:43:28,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:28,818 INFO L93 Difference]: Finished difference Result 12149 states and 20107 transitions. [2025-01-09 03:43:28,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 03:43:28,819 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 4 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) Word has length 163 [2025-01-09 03:43:28,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:28,846 INFO L225 Difference]: With dead ends: 12149 [2025-01-09 03:43:28,847 INFO L226 Difference]: Without dead ends: 6145 [2025-01-09 03:43:28,861 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 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 03:43:28,862 INFO L435 NwaCegarLoop]: 402 mSDtfsCounter, 1243 mSDsluCounter, 1311 mSDsCounter, 0 mSdLazyCounter, 2544 mSolverCounterSat, 333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1243 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 2877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 2544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:28,862 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1243 Valid, 1713 Invalid, 2877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 2544 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-01-09 03:43:28,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6145 states. [2025-01-09 03:43:29,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6145 to 6123. [2025-01-09 03:43:29,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6123 states, 4797 states have (on average 1.610381488430269) internal successors, (7725), 5006 states have internal predecessors, (7725), 1013 states have call successors, (1013), 255 states have call predecessors, (1013), 312 states have return successors, (1336), 1007 states have call predecessors, (1336), 1008 states have call successors, (1336) [2025-01-09 03:43:29,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6123 states to 6123 states and 10074 transitions. [2025-01-09 03:43:29,115 INFO L78 Accepts]: Start accepts. Automaton has 6123 states and 10074 transitions. Word has length 163 [2025-01-09 03:43:29,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:29,115 INFO L471 AbstractCegarLoop]: Abstraction has 6123 states and 10074 transitions. [2025-01-09 03:43:29,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 7 states have internal predecessors, (113), 4 states have call successors, (17), 3 states have call predecessors, (17), 4 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 03:43:29,115 INFO L276 IsEmpty]: Start isEmpty. Operand 6123 states and 10074 transitions. [2025-01-09 03:43:29,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-01-09 03:43:29,117 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:29,117 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] [2025-01-09 03:43:29,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2025-01-09 03:43:29,117 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:29,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:29,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1322435021, now seen corresponding path program 1 times [2025-01-09 03:43:29,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:29,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008647412] [2025-01-09 03:43:29,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:29,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:29,128 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-01-09 03:43:29,135 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-01-09 03:43:29,135 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:29,135 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:29,204 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 03:43:29,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:29,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008647412] [2025-01-09 03:43:29,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008647412] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:29,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:43:29,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 03:43:29,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506335327] [2025-01-09 03:43:29,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:29,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:43:29,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:29,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:43:29,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:43:29,206 INFO L87 Difference]: Start difference. First operand 6123 states and 10074 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 03:43:31,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:31,642 INFO L93 Difference]: Finished difference Result 21745 states and 36737 transitions. [2025-01-09 03:43:31,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:43:31,643 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) Word has length 164 [2025-01-09 03:43:31,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:31,706 INFO L225 Difference]: With dead ends: 21745 [2025-01-09 03:43:31,706 INFO L226 Difference]: Without dead ends: 15737 [2025-01-09 03:43:31,724 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 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 03:43:31,724 INFO L435 NwaCegarLoop]: 462 mSDtfsCounter, 2190 mSDsluCounter, 847 mSDsCounter, 0 mSdLazyCounter, 2254 mSolverCounterSat, 493 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2287 SdHoareTripleChecker+Valid, 1309 SdHoareTripleChecker+Invalid, 2747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 493 IncrementalHoareTripleChecker+Valid, 2254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:31,725 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2287 Valid, 1309 Invalid, 2747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [493 Valid, 2254 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-01-09 03:43:31,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15737 states. [2025-01-09 03:43:32,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15737 to 15239. [2025-01-09 03:43:32,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15239 states, 11489 states have (on average 1.5992688658717034) internal successors, (18374), 12140 states have internal predecessors, (18374), 3030 states have call successors, (3030), 546 states have call predecessors, (3030), 719 states have return successors, (4267), 3036 states have call predecessors, (4267), 3025 states have call successors, (4267) [2025-01-09 03:43:32,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15239 states to 15239 states and 25671 transitions. [2025-01-09 03:43:32,366 INFO L78 Accepts]: Start accepts. Automaton has 15239 states and 25671 transitions. Word has length 164 [2025-01-09 03:43:32,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:32,366 INFO L471 AbstractCegarLoop]: Abstraction has 15239 states and 25671 transitions. [2025-01-09 03:43:32,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 4 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 4 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 03:43:32,366 INFO L276 IsEmpty]: Start isEmpty. Operand 15239 states and 25671 transitions. [2025-01-09 03:43:32,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2025-01-09 03:43:32,369 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:32,369 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] [2025-01-09 03:43:32,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2025-01-09 03:43:32,371 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:32,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:32,371 INFO L85 PathProgramCache]: Analyzing trace with hash 441657878, now seen corresponding path program 1 times [2025-01-09 03:43:32,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:32,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902668516] [2025-01-09 03:43:32,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:32,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:32,383 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 174 statements into 1 equivalence classes. [2025-01-09 03:43:32,390 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 174 of 174 statements. [2025-01-09 03:43:32,390 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:32,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:32,566 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-09 03:43:32,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:32,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902668516] [2025-01-09 03:43:32,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902668516] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:32,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471830896] [2025-01-09 03:43:32,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:32,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:32,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:32,568 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 03:43:32,570 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 03:43:32,709 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 174 statements into 1 equivalence classes. [2025-01-09 03:43:32,848 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 174 of 174 statements. [2025-01-09 03:43:32,848 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:32,848 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:32,854 INFO L256 TraceCheckSpWp]: Trace formula consists of 1972 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-09 03:43:32,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:33,095 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 03:43:33,095 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:33,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471830896] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:33,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:33,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2025-01-09 03:43:33,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026333899] [2025-01-09 03:43:33,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:33,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:43:33,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:33,096 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:43:33,096 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2025-01-09 03:43:33,096 INFO L87 Difference]: Start difference. First operand 15239 states and 25671 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 5 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2025-01-09 03:43:35,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:35,520 INFO L93 Difference]: Finished difference Result 30008 states and 50920 transitions. [2025-01-09 03:43:35,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-09 03:43:35,520 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 5 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) Word has length 174 [2025-01-09 03:43:35,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:35,608 INFO L225 Difference]: With dead ends: 30008 [2025-01-09 03:43:35,609 INFO L226 Difference]: Without dead ends: 16563 [2025-01-09 03:43:35,665 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2025-01-09 03:43:35,666 INFO L435 NwaCegarLoop]: 491 mSDtfsCounter, 1792 mSDsluCounter, 1843 mSDsCounter, 0 mSdLazyCounter, 3570 mSolverCounterSat, 354 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1876 SdHoareTripleChecker+Valid, 2334 SdHoareTripleChecker+Invalid, 3924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 354 IncrementalHoareTripleChecker+Valid, 3570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:35,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1876 Valid, 2334 Invalid, 3924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [354 Valid, 3570 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-01-09 03:43:35,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16563 states. [2025-01-09 03:43:36,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16563 to 15476. [2025-01-09 03:43:36,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15476 states, 11630 states have (on average 1.5951848667239896) internal successors, (18552), 12314 states have internal predecessors, (18552), 3103 states have call successors, (3103), 546 states have call predecessors, (3103), 742 states have return successors, (4602), 3099 states have call predecessors, (4602), 3098 states have call successors, (4602) [2025-01-09 03:43:36,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15476 states to 15476 states and 26257 transitions. [2025-01-09 03:43:36,639 INFO L78 Accepts]: Start accepts. Automaton has 15476 states and 26257 transitions. Word has length 174 [2025-01-09 03:43:36,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:36,639 INFO L471 AbstractCegarLoop]: Abstraction has 15476 states and 26257 transitions. [2025-01-09 03:43:36,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 5 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2025-01-09 03:43:36,640 INFO L276 IsEmpty]: Start isEmpty. Operand 15476 states and 26257 transitions. [2025-01-09 03:43:36,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2025-01-09 03:43:36,643 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:36,643 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] [2025-01-09 03:43:36,653 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 03:43:36,847 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,SelfDestructingSolverStorable39 [2025-01-09 03:43:36,847 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:36,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:36,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1124088921, now seen corresponding path program 1 times [2025-01-09 03:43:36,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:36,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852986401] [2025-01-09 03:43:36,847 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:36,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:36,864 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 172 statements into 1 equivalence classes. [2025-01-09 03:43:36,873 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 172 of 172 statements. [2025-01-09 03:43:36,873 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:36,873 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:36,989 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 03:43:36,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:36,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852986401] [2025-01-09 03:43:36,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852986401] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:36,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:43:36,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:43:36,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951991451] [2025-01-09 03:43:36,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:36,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:43:36,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:36,990 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:43:36,990 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:43:36,990 INFO L87 Difference]: Start difference. First operand 15476 states and 26257 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 4 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2025-01-09 03:43:39,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:39,227 INFO L93 Difference]: Finished difference Result 46811 states and 80683 transitions. [2025-01-09 03:43:39,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:43:39,227 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 4 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 172 [2025-01-09 03:43:39,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:39,405 INFO L225 Difference]: With dead ends: 46811 [2025-01-09 03:43:39,405 INFO L226 Difference]: Without dead ends: 31439 [2025-01-09 03:43:39,481 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 03:43:39,481 INFO L435 NwaCegarLoop]: 322 mSDtfsCounter, 1857 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 399 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1934 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 1519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 399 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:39,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1934 Valid, 608 Invalid, 1519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [399 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-01-09 03:43:39,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31439 states. [2025-01-09 03:43:41,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31439 to 31437. [2025-01-09 03:43:41,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31437 states, 23644 states have (on average 1.5836998815767214) internal successors, (37445), 25084 states have internal predecessors, (37445), 6226 states have call successors, (6226), 1088 states have call predecessors, (6226), 1566 states have return successors, (10172), 6232 states have call predecessors, (10172), 6221 states have call successors, (10172) [2025-01-09 03:43:41,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31437 states to 31437 states and 53843 transitions. [2025-01-09 03:43:41,394 INFO L78 Accepts]: Start accepts. Automaton has 31437 states and 53843 transitions. Word has length 172 [2025-01-09 03:43:41,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:41,394 INFO L471 AbstractCegarLoop]: Abstraction has 31437 states and 53843 transitions. [2025-01-09 03:43:41,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 4 states have call successors, (18), 3 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2025-01-09 03:43:41,395 INFO L276 IsEmpty]: Start isEmpty. Operand 31437 states and 53843 transitions. [2025-01-09 03:43:41,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2025-01-09 03:43:41,402 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:41,403 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] [2025-01-09 03:43:41,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2025-01-09 03:43:41,403 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:41,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:41,403 INFO L85 PathProgramCache]: Analyzing trace with hash 486889031, now seen corresponding path program 1 times [2025-01-09 03:43:41,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:41,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884406565] [2025-01-09 03:43:41,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:41,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:41,419 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 173 statements into 1 equivalence classes. [2025-01-09 03:43:41,431 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 173 of 173 statements. [2025-01-09 03:43:41,431 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:41,431 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:41,763 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2025-01-09 03:43:41,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:41,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884406565] [2025-01-09 03:43:41,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884406565] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:41,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [182603133] [2025-01-09 03:43:41,764 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:41,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:41,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:41,766 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 03:43:41,767 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 03:43:41,908 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 173 statements into 1 equivalence classes. [2025-01-09 03:43:42,045 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 173 of 173 statements. [2025-01-09 03:43:42,045 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:42,045 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:42,051 INFO L256 TraceCheckSpWp]: Trace formula consists of 1950 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-09 03:43:42,053 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:42,092 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-01-09 03:43:42,092 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 03:43:42,216 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 03:43:42,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [182603133] provided 1 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:42,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-01-09 03:43:42,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11, 6] total 16 [2025-01-09 03:43:42,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170212564] [2025-01-09 03:43:42,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:42,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:43:42,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:42,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:43:42,217 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2025-01-09 03:43:42,217 INFO L87 Difference]: Start difference. First operand 31437 states and 53843 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2025-01-09 03:43:43,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:43,430 INFO L93 Difference]: Finished difference Result 31566 states and 54012 transitions. [2025-01-09 03:43:43,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:43:43,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) Word has length 173 [2025-01-09 03:43:43,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:43,618 INFO L225 Difference]: With dead ends: 31566 [2025-01-09 03:43:43,618 INFO L226 Difference]: Without dead ends: 31545 [2025-01-09 03:43:43,651 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 341 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2025-01-09 03:43:43,652 INFO L435 NwaCegarLoop]: 834 mSDtfsCounter, 0 mSDsluCounter, 2488 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3322 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:43,652 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3322 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:43,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31545 states. [2025-01-09 03:43:45,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31545 to 31545. [2025-01-09 03:43:45,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31545 states, 23752 states have (on average 1.579530144829909) internal successors, (37517), 25192 states have internal predecessors, (37517), 6226 states have call successors, (6226), 1088 states have call predecessors, (6226), 1566 states have return successors, (10172), 6232 states have call predecessors, (10172), 6221 states have call successors, (10172) [2025-01-09 03:43:45,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31545 states to 31545 states and 53915 transitions. [2025-01-09 03:43:45,263 INFO L78 Accepts]: Start accepts. Automaton has 31545 states and 53915 transitions. Word has length 173 [2025-01-09 03:43:45,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:45,263 INFO L471 AbstractCegarLoop]: Abstraction has 31545 states and 53915 transitions. [2025-01-09 03:43:45,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 1 states have call successors, (17) [2025-01-09 03:43:45,263 INFO L276 IsEmpty]: Start isEmpty. Operand 31545 states and 53915 transitions. [2025-01-09 03:43:45,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2025-01-09 03:43:45,275 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:45,275 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 5, 5, 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, 1, 1, 1, 1] [2025-01-09 03:43:45,283 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 03:43:45,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,34 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:45,475 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:45,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:45,476 INFO L85 PathProgramCache]: Analyzing trace with hash 125889068, now seen corresponding path program 1 times [2025-01-09 03:43:45,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:45,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460427457] [2025-01-09 03:43:45,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:45,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:45,489 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 204 statements into 1 equivalence classes. [2025-01-09 03:43:45,493 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 204 of 204 statements. [2025-01-09 03:43:45,493 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:45,493 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:45,563 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2025-01-09 03:43:45,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:45,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460427457] [2025-01-09 03:43:45,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460427457] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:45,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106855188] [2025-01-09 03:43:45,563 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:45,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:45,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:45,565 INFO L229 MonitoredProcess]: Starting monitored process 35 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 03:43:45,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2025-01-09 03:43:45,709 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 204 statements into 1 equivalence classes. [2025-01-09 03:43:45,856 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 204 of 204 statements. [2025-01-09 03:43:45,856 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:45,856 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:45,861 INFO L256 TraceCheckSpWp]: Trace formula consists of 2027 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 03:43:45,864 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:45,887 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2025-01-09 03:43:45,888 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:45,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106855188] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:45,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:45,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:43:45,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379635543] [2025-01-09 03:43:45,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:45,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:43:45,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:45,888 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:43:45,888 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:43:45,888 INFO L87 Difference]: Start difference. First operand 31545 states and 53915 transitions. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-01-09 03:43:46,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:46,679 INFO L93 Difference]: Finished difference Result 46676 states and 79506 transitions. [2025-01-09 03:43:46,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:43:46,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 204 [2025-01-09 03:43:46,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:46,763 INFO L225 Difference]: With dead ends: 46676 [2025-01-09 03:43:46,763 INFO L226 Difference]: Without dead ends: 15232 [2025-01-09 03:43:46,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 203 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 03:43:46,866 INFO L435 NwaCegarLoop]: 818 mSDtfsCounter, 15 mSDsluCounter, 1613 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2431 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:46,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2431 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:46,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15232 states. [2025-01-09 03:43:47,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15232 to 15232. [2025-01-09 03:43:47,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15232 states, 11479 states have (on average 1.5857653105671226) internal successors, (18203), 12162 states have internal predecessors, (18203), 3010 states have call successors, (3010), 546 states have call predecessors, (3010), 742 states have return successors, (4510), 3007 states have call predecessors, (4510), 3006 states have call successors, (4510) [2025-01-09 03:43:48,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15232 states to 15232 states and 25723 transitions. [2025-01-09 03:43:48,110 INFO L78 Accepts]: Start accepts. Automaton has 15232 states and 25723 transitions. Word has length 204 [2025-01-09 03:43:48,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:48,110 INFO L471 AbstractCegarLoop]: Abstraction has 15232 states and 25723 transitions. [2025-01-09 03:43:48,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-01-09 03:43:48,111 INFO L276 IsEmpty]: Start isEmpty. Operand 15232 states and 25723 transitions. [2025-01-09 03:43:48,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2025-01-09 03:43:48,117 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:48,117 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 5, 5, 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, 1] [2025-01-09 03:43:48,126 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2025-01-09 03:43:48,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,35 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:48,318 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:48,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:48,319 INFO L85 PathProgramCache]: Analyzing trace with hash -1350994899, now seen corresponding path program 1 times [2025-01-09 03:43:48,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:48,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937152320] [2025-01-09 03:43:48,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:48,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:48,335 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 201 statements into 1 equivalence classes. [2025-01-09 03:43:48,345 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 201 of 201 statements. [2025-01-09 03:43:48,346 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:48,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:48,681 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 7 proven. 19 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2025-01-09 03:43:48,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:48,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937152320] [2025-01-09 03:43:48,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937152320] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:48,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876339495] [2025-01-09 03:43:48,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:48,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:48,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:48,683 INFO L229 MonitoredProcess]: Starting monitored process 36 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 03:43:48,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2025-01-09 03:43:48,862 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 201 statements into 1 equivalence classes. [2025-01-09 03:43:49,004 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 201 of 201 statements. [2025-01-09 03:43:49,004 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:49,004 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:49,013 INFO L256 TraceCheckSpWp]: Trace formula consists of 2025 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-01-09 03:43:49,016 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:49,236 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 63 proven. 9 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-01-09 03:43:49,236 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 03:43:49,674 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2025-01-09 03:43:49,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876339495] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 03:43:49,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 03:43:49,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 8] total 26 [2025-01-09 03:43:49,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619887060] [2025-01-09 03:43:49,675 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 03:43:49,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-01-09 03:43:49,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:49,676 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-01-09 03:43:49,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=566, Unknown=0, NotChecked=0, Total=650 [2025-01-09 03:43:49,676 INFO L87 Difference]: Start difference. First operand 15232 states and 25723 transitions. Second operand has 26 states, 25 states have (on average 11.84) internal successors, (296), 22 states have internal predecessors, (296), 11 states have call successors, (50), 6 states have call predecessors, (50), 15 states have return successors, (51), 14 states have call predecessors, (51), 10 states have call successors, (51) [2025-01-09 03:44:02,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:02,664 INFO L93 Difference]: Finished difference Result 85487 states and 148193 transitions. [2025-01-09 03:44:02,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2025-01-09 03:44:02,665 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 11.84) internal successors, (296), 22 states have internal predecessors, (296), 11 states have call successors, (50), 6 states have call predecessors, (50), 15 states have return successors, (51), 14 states have call predecessors, (51), 10 states have call successors, (51) Word has length 201 [2025-01-09 03:44:02,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:03,186 INFO L225 Difference]: With dead ends: 85487 [2025-01-09 03:44:03,186 INFO L226 Difference]: Without dead ends: 70377 [2025-01-09 03:44:03,312 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 406 SyntacticMatches, 2 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 753 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=580, Invalid=3202, Unknown=0, NotChecked=0, Total=3782 [2025-01-09 03:44:03,312 INFO L435 NwaCegarLoop]: 1478 mSDtfsCounter, 6235 mSDsluCounter, 17203 mSDsCounter, 0 mSdLazyCounter, 26156 mSolverCounterSat, 1798 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6303 SdHoareTripleChecker+Valid, 18681 SdHoareTripleChecker+Invalid, 27954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1798 IncrementalHoareTripleChecker+Valid, 26156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:03,312 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6303 Valid, 18681 Invalid, 27954 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1798 Valid, 26156 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2025-01-09 03:44:03,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70377 states. [2025-01-09 03:44:06,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70377 to 69763. [2025-01-09 03:44:06,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69763 states, 51164 states have (on average 1.5735087170666875) internal successors, (80507), 54456 states have internal predecessors, (80507), 15369 states have call successors, (15369), 2164 states have call predecessors, (15369), 3229 states have return successors, (25265), 15558 states have call predecessors, (25265), 15365 states have call successors, (25265) [2025-01-09 03:44:07,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69763 states to 69763 states and 121141 transitions. [2025-01-09 03:44:07,301 INFO L78 Accepts]: Start accepts. Automaton has 69763 states and 121141 transitions. Word has length 201 [2025-01-09 03:44:07,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:07,302 INFO L471 AbstractCegarLoop]: Abstraction has 69763 states and 121141 transitions. [2025-01-09 03:44:07,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 11.84) internal successors, (296), 22 states have internal predecessors, (296), 11 states have call successors, (50), 6 states have call predecessors, (50), 15 states have return successors, (51), 14 states have call predecessors, (51), 10 states have call successors, (51) [2025-01-09 03:44:07,302 INFO L276 IsEmpty]: Start isEmpty. Operand 69763 states and 121141 transitions. [2025-01-09 03:44:07,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2025-01-09 03:44:07,323 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:07,323 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 4, 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, 1, 1, 1, 1, 1] [2025-01-09 03:44:07,334 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2025-01-09 03:44:07,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2025-01-09 03:44:07,527 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:07,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:07,527 INFO L85 PathProgramCache]: Analyzing trace with hash 462787756, now seen corresponding path program 1 times [2025-01-09 03:44:07,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:07,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938531942] [2025-01-09 03:44:07,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:07,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:07,542 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 204 statements into 1 equivalence classes. [2025-01-09 03:44:07,552 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 204 of 204 statements. [2025-01-09 03:44:07,552 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:07,552 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:07,601 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2025-01-09 03:44:07,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:07,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938531942] [2025-01-09 03:44:07,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938531942] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:07,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805261235] [2025-01-09 03:44:07,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:07,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:07,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:07,605 INFO L229 MonitoredProcess]: Starting monitored process 37 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 03:44:07,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2025-01-09 03:44:07,763 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 204 statements into 1 equivalence classes. [2025-01-09 03:44:07,908 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 204 of 204 statements. [2025-01-09 03:44:07,908 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:07,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:07,914 INFO L256 TraceCheckSpWp]: Trace formula consists of 2049 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:44:07,916 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:07,930 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-01-09 03:44:07,930 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:07,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805261235] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:07,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:07,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:44:07,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160901421] [2025-01-09 03:44:07,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:07,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:07,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:07,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:07,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:44:07,931 INFO L87 Difference]: Start difference. First operand 69763 states and 121141 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 2 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21)