./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec2_product23.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_spec2_product23.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 3c1ff6fd56cd2377d464f2b10cb9a0da8b8728fdfad0102577329687d925f1d9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 03:45:06,733 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 03:45:06,823 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 03:45:06,835 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 03:45:06,843 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 03:45:06,885 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 03:45:06,885 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 03:45:06,886 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 03:45:06,886 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 03:45:06,886 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 03:45:06,886 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 03:45:06,886 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 03:45:06,886 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 03:45:06,886 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 03:45:06,886 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 03:45:06,886 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 03:45:06,886 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 03:45:06,886 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 03:45:06,886 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 03:45:06,887 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 03:45:06,887 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 03:45:06,887 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 03:45:06,887 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 03:45:06,887 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 03:45:06,887 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 03:45:06,887 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 03:45:06,887 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 03:45:06,887 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 03:45:06,887 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 03:45:06,887 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:45:06,887 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:45:06,887 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:45:06,887 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:45:06,887 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 03:45:06,887 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:45:06,887 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:45:06,889 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:45:06,889 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:45:06,889 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 03:45:06,889 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 03:45:06,889 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 03:45:06,893 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 03:45:06,893 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 03:45:06,893 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 03:45:06,893 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 03:45:06,894 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 03:45:06,894 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 03:45:06,894 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 03:45:06,894 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 -> 3c1ff6fd56cd2377d464f2b10cb9a0da8b8728fdfad0102577329687d925f1d9 [2025-01-09 03:45:07,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 03:45:07,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 03:45:07,384 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 03:45:07,385 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 03:45:07,385 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 03:45:07,389 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec2_product23.cil.c [2025-01-09 03:45:08,598 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6572e6f73/1a0c043c085d4f6294fd4a05081b5ef7/FLAG52d886ccf [2025-01-09 03:45:08,950 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 03:45:08,950 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec2_product23.cil.c [2025-01-09 03:45:08,963 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6572e6f73/1a0c043c085d4f6294fd4a05081b5ef7/FLAG52d886ccf [2025-01-09 03:45:08,973 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/6572e6f73/1a0c043c085d4f6294fd4a05081b5ef7 [2025-01-09 03:45:08,978 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 03:45:08,979 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 03:45:08,981 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 03:45:08,981 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 03:45:08,984 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 03:45:08,985 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:45:08" (1/1) ... [2025-01-09 03:45:08,985 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12f7260e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:45:08, skipping insertion in model container [2025-01-09 03:45:08,985 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:45:08" (1/1) ... [2025-01-09 03:45:09,015 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 03:45:09,372 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_spec2_product23.cil.c[35995,36008] [2025-01-09 03:45:09,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:45:09,522 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 03:45:09,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [48] [2025-01-09 03:45:09,531 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [235] [2025-01-09 03:45:09,531 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [273] [2025-01-09 03:45:09,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [941] [2025-01-09 03:45:09,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1307] [2025-01-09 03:45:09,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1665] [2025-01-09 03:45:09,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1674] [2025-01-09 03:45:09,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1766] [2025-01-09 03:45:09,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [1778] [2025-01-09 03:45:09,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1898] [2025-01-09 03:45:09,587 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_spec2_product23.cil.c[35995,36008] [2025-01-09 03:45:09,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:45:09,680 INFO L204 MainTranslator]: Completed translation [2025-01-09 03:45:09,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:45:09 WrapperNode [2025-01-09 03:45:09,682 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 03:45:09,683 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 03:45:09,683 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 03:45:09,683 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 03:45:09,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:45:09" (1/1) ... [2025-01-09 03:45:09,704 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:45:09" (1/1) ... [2025-01-09 03:45:09,745 INFO L138 Inliner]: procedures = 96, calls = 347, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 918 [2025-01-09 03:45:09,745 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 03:45:09,746 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 03:45:09,746 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 03:45:09,746 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 03:45:09,753 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:45:09" (1/1) ... [2025-01-09 03:45:09,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:45:09" (1/1) ... [2025-01-09 03:45:09,759 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:45:09" (1/1) ... [2025-01-09 03:45:09,795 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 03:45:09,795 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:45:09" (1/1) ... [2025-01-09 03:45:09,795 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:45:09" (1/1) ... [2025-01-09 03:45:09,812 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:45:09" (1/1) ... [2025-01-09 03:45:09,814 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:45:09" (1/1) ... [2025-01-09 03:45:09,821 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:45:09" (1/1) ... [2025-01-09 03:45:09,825 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:45:09" (1/1) ... [2025-01-09 03:45:09,827 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:45:09" (1/1) ... [2025-01-09 03:45:09,832 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 03:45:09,832 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 03:45:09,832 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 03:45:09,832 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 03:45:09,833 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:45:09" (1/1) ... [2025-01-09 03:45:09,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:45:09,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:45:09,868 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 03:45:09,870 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 03:45:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 03:45:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2025-01-09 03:45:09,886 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2025-01-09 03:45:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2025-01-09 03:45:09,886 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2025-01-09 03:45:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2025-01-09 03:45:09,886 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2025-01-09 03:45:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2025-01-09 03:45:09,886 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2025-01-09 03:45:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2025-01-09 03:45:09,886 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2025-01-09 03:45:09,886 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2025-01-09 03:45:09,886 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2025-01-09 03:45:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2025-01-09 03:45:09,887 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2025-01-09 03:45:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-01-09 03:45:09,887 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-01-09 03:45:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-01-09 03:45:09,887 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-01-09 03:45:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2025-01-09 03:45:09,887 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2025-01-09 03:45:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2025-01-09 03:45:09,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2025-01-09 03:45:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2025-01-09 03:45:09,887 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2025-01-09 03:45:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2025-01-09 03:45:09,887 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2025-01-09 03:45:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2025-01-09 03:45:09,887 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2025-01-09 03:45:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2025-01-09 03:45:09,887 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2025-01-09 03:45:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2025-01-09 03:45:09,887 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2025-01-09 03:45:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2025-01-09 03:45:09,887 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2025-01-09 03:45:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2025-01-09 03:45:09,887 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2025-01-09 03:45:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2025-01-09 03:45:09,887 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2025-01-09 03:45:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2025-01-09 03:45:09,887 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2025-01-09 03:45:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 03:45:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 03:45:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 03:45:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 03:45:09,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 03:45:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 03:45:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 03:45:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 03:45:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-01-09 03:45:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-01-09 03:45:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-01-09 03:45:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-01-09 03:45:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-01-09 03:45:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-01-09 03:45:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-01-09 03:45:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-01-09 03:45:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-01-09 03:45:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-01-09 03:45:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-01-09 03:45:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-01-09 03:45:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2025-01-09 03:45:09,888 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2025-01-09 03:45:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2025-01-09 03:45:09,888 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2025-01-09 03:45:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2025-01-09 03:45:09,888 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2025-01-09 03:45:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2025-01-09 03:45:09,888 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2025-01-09 03:45:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2025-01-09 03:45:09,888 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2025-01-09 03:45:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 03:45:09,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 03:45:09,888 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2025-01-09 03:45:09,889 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2025-01-09 03:45:10,015 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 03:45:10,018 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 03:45:11,027 INFO L? ?]: Removed 471 outVars from TransFormulas that were not future-live. [2025-01-09 03:45:11,028 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 03:45:11,052 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 03:45:11,055 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 03:45:11,056 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:45:11 BoogieIcfgContainer [2025-01-09 03:45:11,056 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 03:45:11,057 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 03:45:11,058 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 03:45:11,061 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 03:45:11,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 03:45:08" (1/3) ... [2025-01-09 03:45:11,061 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f781a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:45:11, skipping insertion in model container [2025-01-09 03:45:11,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:45:09" (2/3) ... [2025-01-09 03:45:11,061 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f781a4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:45:11, skipping insertion in model container [2025-01-09 03:45:11,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:45:11" (3/3) ... [2025-01-09 03:45:11,062 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product23.cil.c [2025-01-09 03:45:11,073 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 03:45:11,075 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec2_product23.cil.c that has 27 procedures, 586 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 03:45:11,134 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 03:45:11,144 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;@2e5d869f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 03:45:11,145 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 03:45:11,149 INFO L276 IsEmpty]: Start isEmpty. Operand has 586 states, 456 states have (on average 1.6776315789473684) internal successors, (765), 477 states have internal predecessors, (765), 102 states have call successors, (102), 26 states have call predecessors, (102), 26 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) [2025-01-09 03:45:11,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-01-09 03:45:11,166 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:11,166 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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 03:45:11,171 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:11,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:11,174 INFO L85 PathProgramCache]: Analyzing trace with hash -752290917, now seen corresponding path program 1 times [2025-01-09 03:45:11,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:11,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214677141] [2025-01-09 03:45:11,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:11,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:11,252 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-01-09 03:45:11,311 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-01-09 03:45:11,311 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:11,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:11,601 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 03:45:11,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:11,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214677141] [2025-01-09 03:45:11,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214677141] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:11,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:45:11,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:45:11,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432318051] [2025-01-09 03:45:11,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:11,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:45:11,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:11,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:45:11,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:45:11,630 INFO L87 Difference]: Start difference. First operand has 586 states, 456 states have (on average 1.6776315789473684) internal successors, (765), 477 states have internal predecessors, (765), 102 states have call successors, (102), 26 states have call predecessors, (102), 26 states have return successors, (102), 96 states have call predecessors, (102), 102 states have call successors, (102) Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (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 03:45:11,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:11,778 INFO L93 Difference]: Finished difference Result 1152 states and 1913 transitions. [2025-01-09 03:45:11,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:45:11,780 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (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 104 [2025-01-09 03:45:11,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:11,799 INFO L225 Difference]: With dead ends: 1152 [2025-01-09 03:45:11,804 INFO L226 Difference]: Without dead ends: 578 [2025-01-09 03:45:11,814 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:45:11,820 INFO L435 NwaCegarLoop]: 949 mSDtfsCounter, 5 mSDsluCounter, 1894 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2843 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:45:11,820 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2843 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:45:11,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2025-01-09 03:45:11,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 578. [2025-01-09 03:45:11,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 450 states have (on average 1.6755555555555555) internal successors, (754), 469 states have internal predecessors, (754), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2025-01-09 03:45:11,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 953 transitions. [2025-01-09 03:45:11,934 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 953 transitions. Word has length 104 [2025-01-09 03:45:11,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:11,934 INFO L471 AbstractCegarLoop]: Abstraction has 578 states and 953 transitions. [2025-01-09 03:45:11,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (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 03:45:11,935 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 953 transitions. [2025-01-09 03:45:11,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2025-01-09 03:45:11,947 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:11,948 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 03:45:11,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 03:45:11,948 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:11,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:11,949 INFO L85 PathProgramCache]: Analyzing trace with hash -2064335190, now seen corresponding path program 1 times [2025-01-09 03:45:11,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:11,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511470577] [2025-01-09 03:45:11,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:11,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:11,993 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-01-09 03:45:12,010 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-01-09 03:45:12,016 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:12,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:12,236 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 03:45:12,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:12,236 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511470577] [2025-01-09 03:45:12,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511470577] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:12,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:45:12,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:45:12,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670101780] [2025-01-09 03:45:12,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:12,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:45:12,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:12,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:45:12,239 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:45:12,239 INFO L87 Difference]: Start difference. First operand 578 states and 953 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 03:45:12,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:12,318 INFO L93 Difference]: Finished difference Result 1138 states and 1883 transitions. [2025-01-09 03:45:12,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:45:12,319 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 106 [2025-01-09 03:45:12,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:12,325 INFO L225 Difference]: With dead ends: 1138 [2025-01-09 03:45:12,326 INFO L226 Difference]: Without dead ends: 578 [2025-01-09 03:45:12,329 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:45:12,330 INFO L435 NwaCegarLoop]: 942 mSDtfsCounter, 4 mSDsluCounter, 1880 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2822 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:45:12,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2822 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:45:12,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2025-01-09 03:45:12,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 578. [2025-01-09 03:45:12,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 450 states have (on average 1.6733333333333333) internal successors, (753), 469 states have internal predecessors, (753), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2025-01-09 03:45:12,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 952 transitions. [2025-01-09 03:45:12,362 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 952 transitions. Word has length 106 [2025-01-09 03:45:12,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:12,363 INFO L471 AbstractCegarLoop]: Abstraction has 578 states and 952 transitions. [2025-01-09 03:45:12,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 03:45:12,363 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 952 transitions. [2025-01-09 03:45:12,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2025-01-09 03:45:12,369 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:12,369 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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 03:45:12,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 03:45:12,369 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:12,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:12,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1105974657, now seen corresponding path program 1 times [2025-01-09 03:45:12,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:12,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293554984] [2025-01-09 03:45:12,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:12,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:12,393 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-01-09 03:45:12,403 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-01-09 03:45:12,405 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:12,405 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:12,497 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 03:45:12,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:12,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293554984] [2025-01-09 03:45:12,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293554984] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:12,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:45:12,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:45:12,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914657343] [2025-01-09 03:45:12,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:12,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:45:12,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:12,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:45:12,499 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:45:12,499 INFO L87 Difference]: Start difference. First operand 578 states and 952 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, (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 03:45:12,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:12,557 INFO L93 Difference]: Finished difference Result 1138 states and 1882 transitions. [2025-01-09 03:45:12,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:45:12,558 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, (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 107 [2025-01-09 03:45:12,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:12,564 INFO L225 Difference]: With dead ends: 1138 [2025-01-09 03:45:12,565 INFO L226 Difference]: Without dead ends: 578 [2025-01-09 03:45:12,567 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:45:12,569 INFO L435 NwaCegarLoop]: 942 mSDtfsCounter, 3 mSDsluCounter, 1880 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2822 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:45:12,570 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2822 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:45:12,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2025-01-09 03:45:12,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 578. [2025-01-09 03:45:12,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 450 states have (on average 1.6711111111111112) internal successors, (752), 469 states have internal predecessors, (752), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2025-01-09 03:45:12,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 951 transitions. [2025-01-09 03:45:12,599 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 951 transitions. Word has length 107 [2025-01-09 03:45:12,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:12,599 INFO L471 AbstractCegarLoop]: Abstraction has 578 states and 951 transitions. [2025-01-09 03:45:12,600 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, (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 03:45:12,600 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 951 transitions. [2025-01-09 03:45:12,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2025-01-09 03:45:12,604 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:12,604 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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 03:45:12,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 03:45:12,605 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:12,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:12,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1165685874, now seen corresponding path program 1 times [2025-01-09 03:45:12,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:12,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648388543] [2025-01-09 03:45:12,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:12,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:12,631 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-01-09 03:45:12,640 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-01-09 03:45:12,641 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:12,641 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:12,795 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 03:45:12,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:12,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648388543] [2025-01-09 03:45:12,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648388543] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:12,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:45:12,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:45:12,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536105321] [2025-01-09 03:45:12,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:12,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:45:12,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:12,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:45:12,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:45:12,798 INFO L87 Difference]: Start difference. First operand 578 states and 951 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 03:45:12,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:12,842 INFO L93 Difference]: Finished difference Result 1138 states and 1881 transitions. [2025-01-09 03:45:12,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:45:12,844 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 108 [2025-01-09 03:45:12,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:12,849 INFO L225 Difference]: With dead ends: 1138 [2025-01-09 03:45:12,849 INFO L226 Difference]: Without dead ends: 578 [2025-01-09 03:45:12,851 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:45:12,852 INFO L435 NwaCegarLoop]: 942 mSDtfsCounter, 2 mSDsluCounter, 1880 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2822 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:45:12,852 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2822 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:45:12,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2025-01-09 03:45:12,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 578. [2025-01-09 03:45:12,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 450 states have (on average 1.6688888888888889) internal successors, (751), 469 states have internal predecessors, (751), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2025-01-09 03:45:12,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 950 transitions. [2025-01-09 03:45:12,878 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 950 transitions. Word has length 108 [2025-01-09 03:45:12,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:12,878 INFO L471 AbstractCegarLoop]: Abstraction has 578 states and 950 transitions. [2025-01-09 03:45:12,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 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 03:45:12,879 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 950 transitions. [2025-01-09 03:45:12,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2025-01-09 03:45:12,882 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:12,882 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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 03:45:12,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 03:45:12,882 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:12,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:12,882 INFO L85 PathProgramCache]: Analyzing trace with hash -339736283, now seen corresponding path program 1 times [2025-01-09 03:45:12,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:12,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214524008] [2025-01-09 03:45:12,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:12,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:12,897 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-01-09 03:45:12,910 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-01-09 03:45:12,910 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:12,910 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:13,012 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 03:45:13,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:13,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214524008] [2025-01-09 03:45:13,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214524008] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:13,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:45:13,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:45:13,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134563095] [2025-01-09 03:45:13,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:13,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:45:13,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:13,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:45:13,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:45:13,014 INFO L87 Difference]: Start difference. First operand 578 states and 950 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, (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 03:45:13,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:13,054 INFO L93 Difference]: Finished difference Result 1138 states and 1880 transitions. [2025-01-09 03:45:13,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:45:13,054 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, (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 109 [2025-01-09 03:45:13,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:13,059 INFO L225 Difference]: With dead ends: 1138 [2025-01-09 03:45:13,059 INFO L226 Difference]: Without dead ends: 578 [2025-01-09 03:45:13,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:45:13,062 INFO L435 NwaCegarLoop]: 942 mSDtfsCounter, 1 mSDsluCounter, 1880 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2822 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 03:45:13,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2822 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:45:13,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578 states. [2025-01-09 03:45:13,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578 to 578. [2025-01-09 03:45:13,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 450 states have (on average 1.6666666666666667) internal successors, (750), 469 states have internal predecessors, (750), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2025-01-09 03:45:13,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 949 transitions. [2025-01-09 03:45:13,082 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 949 transitions. Word has length 109 [2025-01-09 03:45:13,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:13,082 INFO L471 AbstractCegarLoop]: Abstraction has 578 states and 949 transitions. [2025-01-09 03:45:13,083 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, (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 03:45:13,083 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 949 transitions. [2025-01-09 03:45:13,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-01-09 03:45:13,085 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:13,085 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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 03:45:13,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 03:45:13,086 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:13,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:13,087 INFO L85 PathProgramCache]: Analyzing trace with hash 2022846578, now seen corresponding path program 1 times [2025-01-09 03:45:13,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:13,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492128926] [2025-01-09 03:45:13,087 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:13,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:13,105 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-01-09 03:45:13,112 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-01-09 03:45:13,112 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:13,113 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:13,271 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 03:45:13,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:13,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492128926] [2025-01-09 03:45:13,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492128926] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:13,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:45:13,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 03:45:13,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644016383] [2025-01-09 03:45:13,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:13,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:45:13,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:13,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:45:13,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:45:13,273 INFO L87 Difference]: Start difference. First operand 578 states and 949 transitions. Second operand has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (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 03:45:13,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:13,373 INFO L93 Difference]: Finished difference Result 1104 states and 1812 transitions. [2025-01-09 03:45:13,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:45:13,373 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (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 110 [2025-01-09 03:45:13,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:13,378 INFO L225 Difference]: With dead ends: 1104 [2025-01-09 03:45:13,378 INFO L226 Difference]: Without dead ends: 593 [2025-01-09 03:45:13,380 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:45:13,381 INFO L435 NwaCegarLoop]: 939 mSDtfsCounter, 91 mSDsluCounter, 4614 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5553 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:45:13,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5553 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:45:13,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2025-01-09 03:45:13,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 591. [2025-01-09 03:45:13,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 460 states have (on average 1.6630434782608696) internal successors, (765), 481 states have internal predecessors, (765), 103 states have call successors, (103), 26 states have call predecessors, (103), 27 states have return successors, (100), 96 states have call predecessors, (100), 98 states have call successors, (100) [2025-01-09 03:45:13,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 968 transitions. [2025-01-09 03:45:13,406 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 968 transitions. Word has length 110 [2025-01-09 03:45:13,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:13,407 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 968 transitions. [2025-01-09 03:45:13,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 3 states have call successors, (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 03:45:13,407 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 968 transitions. [2025-01-09 03:45:13,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-01-09 03:45:13,411 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:13,411 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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 03:45:13,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 03:45:13,412 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:13,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:13,412 INFO L85 PathProgramCache]: Analyzing trace with hash 1581092083, now seen corresponding path program 1 times [2025-01-09 03:45:13,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:13,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450694095] [2025-01-09 03:45:13,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:13,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:13,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-01-09 03:45:13,440 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-01-09 03:45:13,441 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:13,441 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:13,513 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 03:45:13,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:13,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450694095] [2025-01-09 03:45:13,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450694095] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:13,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:45:13,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:45:13,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010853773] [2025-01-09 03:45:13,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:13,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:45:13,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:13,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:45:13,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:45:13,516 INFO L87 Difference]: Start difference. First operand 591 states and 968 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, (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 03:45:13,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:13,555 INFO L93 Difference]: Finished difference Result 1156 states and 1906 transitions. [2025-01-09 03:45:13,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:45:13,555 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, (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 110 [2025-01-09 03:45:13,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:13,559 INFO L225 Difference]: With dead ends: 1156 [2025-01-09 03:45:13,560 INFO L226 Difference]: Without dead ends: 572 [2025-01-09 03:45:13,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:45:13,564 INFO L435 NwaCegarLoop]: 943 mSDtfsCounter, 0 mSDsluCounter, 1881 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2824 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:45:13,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2824 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:45:13,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2025-01-09 03:45:13,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2025-01-09 03:45:13,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 444 states have (on average 1.6576576576576576) internal successors, (736), 463 states have internal predecessors, (736), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2025-01-09 03:45:13,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 935 transitions. [2025-01-09 03:45:13,586 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 935 transitions. Word has length 110 [2025-01-09 03:45:13,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:13,586 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 935 transitions. [2025-01-09 03:45:13,586 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, (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 03:45:13,586 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 935 transitions. [2025-01-09 03:45:13,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2025-01-09 03:45:13,589 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:13,589 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 03:45:13,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 03:45:13,590 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:13,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:13,590 INFO L85 PathProgramCache]: Analyzing trace with hash 826597180, now seen corresponding path program 1 times [2025-01-09 03:45:13,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:13,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303263052] [2025-01-09 03:45:13,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:13,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:13,604 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-01-09 03:45:13,612 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-01-09 03:45:13,613 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:13,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:13,714 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 03:45:13,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:13,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303263052] [2025-01-09 03:45:13,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303263052] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:13,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:45:13,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 03:45:13,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978132529] [2025-01-09 03:45:13,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:13,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 03:45:13,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:13,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 03:45:13,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:45:13,716 INFO L87 Difference]: Start difference. First operand 572 states and 935 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:45:13,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:13,901 INFO L93 Difference]: Finished difference Result 1101 states and 1804 transitions. [2025-01-09 03:45:13,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:45:13,901 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 111 [2025-01-09 03:45:13,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:13,905 INFO L225 Difference]: With dead ends: 1101 [2025-01-09 03:45:13,906 INFO L226 Difference]: Without dead ends: 581 [2025-01-09 03:45:13,908 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:45:13,908 INFO L435 NwaCegarLoop]: 892 mSDtfsCounter, 55 mSDsluCounter, 3539 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4431 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:45:13,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4431 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:45:13,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2025-01-09 03:45:13,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 572. [2025-01-09 03:45:13,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 444 states have (on average 1.6486486486486487) internal successors, (732), 463 states have internal predecessors, (732), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2025-01-09 03:45:13,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 931 transitions. [2025-01-09 03:45:13,928 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 931 transitions. Word has length 111 [2025-01-09 03:45:13,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:13,929 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 931 transitions. [2025-01-09 03:45:13,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:45:13,929 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 931 transitions. [2025-01-09 03:45:13,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-01-09 03:45:13,932 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:13,933 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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 03:45:13,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 03:45:13,933 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:13,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:13,933 INFO L85 PathProgramCache]: Analyzing trace with hash -621458129, now seen corresponding path program 1 times [2025-01-09 03:45:13,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:13,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486421886] [2025-01-09 03:45:13,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:13,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:13,947 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-01-09 03:45:13,954 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-01-09 03:45:13,955 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:13,955 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:14,089 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 03:45:14,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:14,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486421886] [2025-01-09 03:45:14,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486421886] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:14,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:45:14,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 03:45:14,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670995225] [2025-01-09 03:45:14,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:14,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 03:45:14,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:14,091 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 03:45:14,091 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:45:14,091 INFO L87 Difference]: Start difference. First operand 572 states and 931 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:45:14,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:14,325 INFO L93 Difference]: Finished difference Result 1101 states and 1800 transitions. [2025-01-09 03:45:14,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:45:14,325 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 112 [2025-01-09 03:45:14,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:14,335 INFO L225 Difference]: With dead ends: 1101 [2025-01-09 03:45:14,335 INFO L226 Difference]: Without dead ends: 581 [2025-01-09 03:45:14,337 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:45:14,342 INFO L435 NwaCegarLoop]: 892 mSDtfsCounter, 54 mSDsluCounter, 3539 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 4431 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 03:45:14,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 4431 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 03:45:14,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2025-01-09 03:45:14,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 572. [2025-01-09 03:45:14,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 444 states have (on average 1.6396396396396395) internal successors, (728), 463 states have internal predecessors, (728), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2025-01-09 03:45:14,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 927 transitions. [2025-01-09 03:45:14,380 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 927 transitions. Word has length 112 [2025-01-09 03:45:14,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:14,380 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 927 transitions. [2025-01-09 03:45:14,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:45:14,381 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 927 transitions. [2025-01-09 03:45:14,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-01-09 03:45:14,386 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:14,387 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 03:45:14,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 03:45:14,387 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:14,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:14,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1015485769, now seen corresponding path program 1 times [2025-01-09 03:45:14,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:14,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34462153] [2025-01-09 03:45:14,388 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:14,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:14,411 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-01-09 03:45:14,417 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-01-09 03:45:14,417 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:14,417 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:14,523 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 03:45:14,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:14,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34462153] [2025-01-09 03:45:14,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34462153] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:14,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:45:14,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 03:45:14,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859700098] [2025-01-09 03:45:14,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:14,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 03:45:14,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:14,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 03:45:14,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:45:14,524 INFO L87 Difference]: Start difference. First operand 572 states and 927 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:45:14,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:14,838 INFO L93 Difference]: Finished difference Result 1101 states and 1796 transitions. [2025-01-09 03:45:14,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:45:14,839 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 113 [2025-01-09 03:45:14,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:14,849 INFO L225 Difference]: With dead ends: 1101 [2025-01-09 03:45:14,852 INFO L226 Difference]: Without dead ends: 581 [2025-01-09 03:45:14,856 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:45:14,860 INFO L435 NwaCegarLoop]: 891 mSDtfsCounter, 53 mSDsluCounter, 3522 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 4413 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 03:45:14,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 4413 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 03:45:14,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2025-01-09 03:45:14,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 572. [2025-01-09 03:45:14,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 444 states have (on average 1.6306306306306306) internal successors, (724), 463 states have internal predecessors, (724), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2025-01-09 03:45:14,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 923 transitions. [2025-01-09 03:45:14,907 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 923 transitions. Word has length 113 [2025-01-09 03:45:14,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:14,907 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 923 transitions. [2025-01-09 03:45:14,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:45:14,908 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 923 transitions. [2025-01-09 03:45:14,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-01-09 03:45:14,914 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:14,915 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 03:45:14,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-09 03:45:14,915 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:14,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:14,916 INFO L85 PathProgramCache]: Analyzing trace with hash 956284471, now seen corresponding path program 1 times [2025-01-09 03:45:14,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:14,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721311026] [2025-01-09 03:45:14,916 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:14,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:14,950 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-01-09 03:45:14,964 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-01-09 03:45:14,964 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:14,968 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:15,248 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 03:45:15,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:15,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721311026] [2025-01-09 03:45:15,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721311026] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:15,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:45:15,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 03:45:15,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961263710] [2025-01-09 03:45:15,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:15,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:45:15,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:15,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:45:15,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:45:15,253 INFO L87 Difference]: Start difference. First operand 572 states and 923 transitions. Second operand has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 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 03:45:15,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:15,403 INFO L93 Difference]: Finished difference Result 1092 states and 1778 transitions. [2025-01-09 03:45:15,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:45:15,404 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 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 113 [2025-01-09 03:45:15,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:15,412 INFO L225 Difference]: With dead ends: 1092 [2025-01-09 03:45:15,415 INFO L226 Difference]: Without dead ends: 551 [2025-01-09 03:45:15,418 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:45:15,421 INFO L435 NwaCegarLoop]: 912 mSDtfsCounter, 84 mSDsluCounter, 4487 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 5399 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:45:15,421 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 5399 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:45:15,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2025-01-09 03:45:15,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2025-01-09 03:45:15,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 423 states have (on average 1.6312056737588652) internal successors, (690), 442 states have internal predecessors, (690), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2025-01-09 03:45:15,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 889 transitions. [2025-01-09 03:45:15,457 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 889 transitions. Word has length 113 [2025-01-09 03:45:15,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:15,458 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 889 transitions. [2025-01-09 03:45:15,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 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 03:45:15,458 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 889 transitions. [2025-01-09 03:45:15,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2025-01-09 03:45:15,464 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:15,465 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 03:45:15,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-09 03:45:15,465 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:15,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:15,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1200573258, now seen corresponding path program 1 times [2025-01-09 03:45:15,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:15,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952961887] [2025-01-09 03:45:15,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:15,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:15,490 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 114 statements into 1 equivalence classes. [2025-01-09 03:45:15,504 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 114 of 114 statements. [2025-01-09 03:45:15,505 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:15,506 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:15,702 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 03:45:15,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:15,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952961887] [2025-01-09 03:45:15,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952961887] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:15,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:45:15,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 03:45:15,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993196926] [2025-01-09 03:45:15,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:15,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 03:45:15,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:15,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 03:45:15,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:45:15,703 INFO L87 Difference]: Start difference. First operand 551 states and 889 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:45:15,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:15,895 INFO L93 Difference]: Finished difference Result 1071 states and 1744 transitions. [2025-01-09 03:45:15,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:45:15,896 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 114 [2025-01-09 03:45:15,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:15,900 INFO L225 Difference]: With dead ends: 1071 [2025-01-09 03:45:15,903 INFO L226 Difference]: Without dead ends: 551 [2025-01-09 03:45:15,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:45:15,906 INFO L435 NwaCegarLoop]: 872 mSDtfsCounter, 17 mSDsluCounter, 3479 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 4351 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:45:15,906 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 4351 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:45:15,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2025-01-09 03:45:15,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2025-01-09 03:45:15,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 423 states have (on average 1.6288416075650118) internal successors, (689), 442 states have internal predecessors, (689), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2025-01-09 03:45:15,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 888 transitions. [2025-01-09 03:45:15,940 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 888 transitions. Word has length 114 [2025-01-09 03:45:15,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:15,940 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 888 transitions. [2025-01-09 03:45:15,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:45:15,941 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 888 transitions. [2025-01-09 03:45:15,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2025-01-09 03:45:15,947 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:15,947 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:45:15,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-09 03:45:15,947 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:15,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:15,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1570026958, now seen corresponding path program 1 times [2025-01-09 03:45:15,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:15,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895297960] [2025-01-09 03:45:15,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:15,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:15,965 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-01-09 03:45:15,971 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-01-09 03:45:15,971 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:15,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:16,052 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 03:45:16,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:16,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895297960] [2025-01-09 03:45:16,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895297960] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:16,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:45:16,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 03:45:16,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367904535] [2025-01-09 03:45:16,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:16,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 03:45:16,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:16,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 03:45:16,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:45:16,054 INFO L87 Difference]: Start difference. First operand 551 states and 888 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:45:16,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:16,117 INFO L93 Difference]: Finished difference Result 1071 states and 1743 transitions. [2025-01-09 03:45:16,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:45:16,117 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 115 [2025-01-09 03:45:16,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:16,121 INFO L225 Difference]: With dead ends: 1071 [2025-01-09 03:45:16,121 INFO L226 Difference]: Without dead ends: 551 [2025-01-09 03:45:16,123 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:45:16,123 INFO L435 NwaCegarLoop]: 872 mSDtfsCounter, 16 mSDsluCounter, 3479 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 4351 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:45:16,123 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 4351 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:45:16,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2025-01-09 03:45:16,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2025-01-09 03:45:16,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 423 states have (on average 1.6264775413711583) internal successors, (688), 442 states have internal predecessors, (688), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2025-01-09 03:45:16,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 887 transitions. [2025-01-09 03:45:16,138 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 887 transitions. Word has length 115 [2025-01-09 03:45:16,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:16,138 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 887 transitions. [2025-01-09 03:45:16,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 6 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 4 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:45:16,138 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 887 transitions. [2025-01-09 03:45:16,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-01-09 03:45:16,140 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:16,140 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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 03:45:16,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-01-09 03:45:16,141 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:16,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:16,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1971848541, now seen corresponding path program 1 times [2025-01-09 03:45:16,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:16,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134162584] [2025-01-09 03:45:16,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:16,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:16,153 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-01-09 03:45:16,159 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-01-09 03:45:16,159 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:16,159 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:16,204 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 03:45:16,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:16,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134162584] [2025-01-09 03:45:16,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134162584] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:16,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:45:16,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:45:16,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620565885] [2025-01-09 03:45:16,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:16,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:45:16,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:16,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:45:16,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:45:16,206 INFO L87 Difference]: Start difference. First operand 551 states and 887 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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 03:45:16,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:16,232 INFO L93 Difference]: Finished difference Result 1071 states and 1742 transitions. [2025-01-09 03:45:16,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:45:16,233 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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 116 [2025-01-09 03:45:16,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:16,237 INFO L225 Difference]: With dead ends: 1071 [2025-01-09 03:45:16,237 INFO L226 Difference]: Without dead ends: 551 [2025-01-09 03:45:16,239 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:45:16,239 INFO L435 NwaCegarLoop]: 880 mSDtfsCounter, 9 mSDsluCounter, 1754 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 2634 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:45:16,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 2634 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:45:16,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2025-01-09 03:45:16,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2025-01-09 03:45:16,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 423 states have (on average 1.624113475177305) internal successors, (687), 442 states have internal predecessors, (687), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2025-01-09 03:45:16,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 886 transitions. [2025-01-09 03:45:16,254 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 886 transitions. Word has length 116 [2025-01-09 03:45:16,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:16,254 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 886 transitions. [2025-01-09 03:45:16,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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 03:45:16,255 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 886 transitions. [2025-01-09 03:45:16,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-01-09 03:45:16,257 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:16,257 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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 03:45:16,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-01-09 03:45:16,257 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:16,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:16,258 INFO L85 PathProgramCache]: Analyzing trace with hash -13273755, now seen corresponding path program 1 times [2025-01-09 03:45:16,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:16,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430448407] [2025-01-09 03:45:16,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:16,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:16,270 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-01-09 03:45:16,275 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-01-09 03:45:16,275 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:16,275 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:16,358 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 03:45:16,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:16,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430448407] [2025-01-09 03:45:16,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430448407] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:16,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:45:16,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:45:16,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270285417] [2025-01-09 03:45:16,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:16,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:45:16,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:16,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:45:16,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:45:16,360 INFO L87 Difference]: Start difference. First operand 551 states and 886 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:45:16,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:16,400 INFO L93 Difference]: Finished difference Result 1065 states and 1730 transitions. [2025-01-09 03:45:16,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:45:16,401 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 116 [2025-01-09 03:45:16,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:16,404 INFO L225 Difference]: With dead ends: 1065 [2025-01-09 03:45:16,404 INFO L226 Difference]: Without dead ends: 551 [2025-01-09 03:45:16,406 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:45:16,406 INFO L435 NwaCegarLoop]: 874 mSDtfsCounter, 4 mSDsluCounter, 1739 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2613 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:45:16,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2613 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:45:16,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2025-01-09 03:45:16,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 551. [2025-01-09 03:45:16,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 423 states have (on average 1.6217494089834514) internal successors, (686), 442 states have internal predecessors, (686), 102 states have call successors, (102), 26 states have call predecessors, (102), 25 states have return successors, (97), 95 states have call predecessors, (97), 97 states have call successors, (97) [2025-01-09 03:45:16,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 885 transitions. [2025-01-09 03:45:16,419 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 885 transitions. Word has length 116 [2025-01-09 03:45:16,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:16,420 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 885 transitions. [2025-01-09 03:45:16,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:45:16,420 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 885 transitions. [2025-01-09 03:45:16,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2025-01-09 03:45:16,422 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:16,422 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 03:45:16,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-01-09 03:45:16,422 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:16,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:16,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1515292963, now seen corresponding path program 1 times [2025-01-09 03:45:16,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:16,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487228492] [2025-01-09 03:45:16,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:16,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:16,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-01-09 03:45:16,440 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-01-09 03:45:16,440 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:16,440 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:16,532 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-09 03:45:16,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:16,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487228492] [2025-01-09 03:45:16,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487228492] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:45:16,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455938093] [2025-01-09 03:45:16,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:16,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:45:16,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:45:16,534 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 03:45:16,536 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 03:45:16,656 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-01-09 03:45:16,787 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-01-09 03:45:16,788 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:16,788 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:16,793 INFO L256 TraceCheckSpWp]: Trace formula consists of 1436 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:45:16,799 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:45:16,822 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-09 03:45:16,822 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:45:16,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455938093] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:16,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:45:16,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2025-01-09 03:45:16,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064129837] [2025-01-09 03:45:16,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:16,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:45:16,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:16,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:45:16,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:45:16,824 INFO L87 Difference]: Start difference. First operand 551 states and 885 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:45:16,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:16,885 INFO L93 Difference]: Finished difference Result 1558 states and 2564 transitions. [2025-01-09 03:45:16,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:45:16,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 117 [2025-01-09 03:45:16,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:16,892 INFO L225 Difference]: With dead ends: 1558 [2025-01-09 03:45:16,892 INFO L226 Difference]: Without dead ends: 1052 [2025-01-09 03:45:16,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:45:16,894 INFO L435 NwaCegarLoop]: 1575 mSDtfsCounter, 826 mSDsluCounter, 874 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 2449 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:45:16,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 2449 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:45:16,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1052 states. [2025-01-09 03:45:16,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1052 to 1032. [2025-01-09 03:45:16,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1032 states, 795 states have (on average 1.6465408805031447) internal successors, (1309), 827 states have internal predecessors, (1309), 190 states have call successors, (190), 46 states have call predecessors, (190), 46 states have return successors, (191), 184 states have call predecessors, (191), 185 states have call successors, (191) [2025-01-09 03:45:16,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1032 states to 1032 states and 1690 transitions. [2025-01-09 03:45:16,927 INFO L78 Accepts]: Start accepts. Automaton has 1032 states and 1690 transitions. Word has length 117 [2025-01-09 03:45:16,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:16,927 INFO L471 AbstractCegarLoop]: Abstraction has 1032 states and 1690 transitions. [2025-01-09 03:45:16,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-01-09 03:45:16,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1032 states and 1690 transitions. [2025-01-09 03:45:16,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2025-01-09 03:45:16,929 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:16,930 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 03:45:16,938 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 03:45:17,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-01-09 03:45:17,134 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:17,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:17,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1453253349, now seen corresponding path program 1 times [2025-01-09 03:45:17,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:17,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907044368] [2025-01-09 03:45:17,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:17,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:17,147 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-01-09 03:45:17,153 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-01-09 03:45:17,153 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:17,153 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:17,239 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-09 03:45:17,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:17,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907044368] [2025-01-09 03:45:17,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907044368] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:45:17,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939611364] [2025-01-09 03:45:17,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:17,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:45:17,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:45:17,241 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 03:45:17,245 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 03:45:17,374 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 117 statements into 1 equivalence classes. [2025-01-09 03:45:17,504 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 117 of 117 statements. [2025-01-09 03:45:17,504 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:17,504 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:17,509 INFO L256 TraceCheckSpWp]: Trace formula consists of 1435 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 03:45:17,512 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:45:17,616 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-09 03:45:17,616 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:45:17,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939611364] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:17,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:45:17,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-01-09 03:45:17,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555652847] [2025-01-09 03:45:17,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:17,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:45:17,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:17,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:45:17,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:45:17,617 INFO L87 Difference]: Start difference. First operand 1032 states and 1690 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 03:45:18,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:18,090 INFO L93 Difference]: Finished difference Result 2035 states and 3401 transitions. [2025-01-09 03:45:18,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:45:18,090 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 117 [2025-01-09 03:45:18,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:18,097 INFO L225 Difference]: With dead ends: 2035 [2025-01-09 03:45:18,097 INFO L226 Difference]: Without dead ends: 1048 [2025-01-09 03:45:18,102 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:45:18,102 INFO L435 NwaCegarLoop]: 867 mSDtfsCounter, 841 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 454 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 2209 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 454 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 03:45:18,102 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [845 Valid, 2209 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 454 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 03:45:18,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2025-01-09 03:45:18,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 1048. [2025-01-09 03:45:18,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1048 states, 809 states have (on average 1.6477132262051917) internal successors, (1333), 841 states have internal predecessors, (1333), 190 states have call successors, (190), 48 states have call predecessors, (190), 48 states have return successors, (193), 184 states have call predecessors, (193), 185 states have call successors, (193) [2025-01-09 03:45:18,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1716 transitions. [2025-01-09 03:45:18,139 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1716 transitions. Word has length 117 [2025-01-09 03:45:18,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:18,139 INFO L471 AbstractCegarLoop]: Abstraction has 1048 states and 1716 transitions. [2025-01-09 03:45:18,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 03:45:18,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1716 transitions. [2025-01-09 03:45:18,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2025-01-09 03:45:18,142 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:18,142 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 03:45:18,150 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 03:45:18,342 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-01-09 03:45:18,343 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:18,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:18,343 INFO L85 PathProgramCache]: Analyzing trace with hash -1558535005, now seen corresponding path program 1 times [2025-01-09 03:45:18,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:18,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902865482] [2025-01-09 03:45:18,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:18,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:18,360 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 119 statements into 1 equivalence classes. [2025-01-09 03:45:18,366 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 119 of 119 statements. [2025-01-09 03:45:18,366 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:18,366 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:18,463 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-09 03:45:18,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:18,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902865482] [2025-01-09 03:45:18,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902865482] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:45:18,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80537845] [2025-01-09 03:45:18,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:18,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:45:18,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:45:18,465 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 03:45:18,466 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 03:45:18,580 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 119 statements into 1 equivalence classes. [2025-01-09 03:45:18,712 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 119 of 119 statements. [2025-01-09 03:45:18,712 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:18,712 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:18,716 INFO L256 TraceCheckSpWp]: Trace formula consists of 1437 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 03:45:18,720 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:45:18,820 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-09 03:45:18,821 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:45:18,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80537845] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:18,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:45:18,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-01-09 03:45:18,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568714299] [2025-01-09 03:45:18,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:18,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:45:18,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:18,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:45:18,822 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:45:18,822 INFO L87 Difference]: Start difference. First operand 1048 states and 1716 transitions. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 03:45:19,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:19,320 INFO L93 Difference]: Finished difference Result 2067 states and 3447 transitions. [2025-01-09 03:45:19,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:45:19,321 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 119 [2025-01-09 03:45:19,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:19,331 INFO L225 Difference]: With dead ends: 2067 [2025-01-09 03:45:19,331 INFO L226 Difference]: Without dead ends: 1064 [2025-01-09 03:45:19,335 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:45:19,336 INFO L435 NwaCegarLoop]: 864 mSDtfsCounter, 839 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 2206 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 03:45:19,336 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 2206 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 03:45:19,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2025-01-09 03:45:19,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1064. [2025-01-09 03:45:19,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1064 states, 823 states have (on average 1.648845686512758) internal successors, (1357), 855 states have internal predecessors, (1357), 190 states have call successors, (190), 50 states have call predecessors, (190), 50 states have return successors, (195), 184 states have call predecessors, (195), 185 states have call successors, (195) [2025-01-09 03:45:19,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1742 transitions. [2025-01-09 03:45:19,372 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1742 transitions. Word has length 119 [2025-01-09 03:45:19,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:19,372 INFO L471 AbstractCegarLoop]: Abstraction has 1064 states and 1742 transitions. [2025-01-09 03:45:19,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 4 states have internal predecessors, (84), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 03:45:19,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1742 transitions. [2025-01-09 03:45:19,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2025-01-09 03:45:19,375 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:19,375 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 03:45:19,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-09 03:45:19,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:45:19,576 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:19,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:19,579 INFO L85 PathProgramCache]: Analyzing trace with hash -2145329957, now seen corresponding path program 1 times [2025-01-09 03:45:19,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:19,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648151059] [2025-01-09 03:45:19,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:19,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:19,590 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 121 statements into 1 equivalence classes. [2025-01-09 03:45:19,597 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 121 of 121 statements. [2025-01-09 03:45:19,598 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:19,598 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:19,670 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-09 03:45:19,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:19,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648151059] [2025-01-09 03:45:19,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648151059] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:45:19,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073945475] [2025-01-09 03:45:19,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:19,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:45:19,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:45:19,673 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 03:45:19,677 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 03:45:19,780 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 121 statements into 1 equivalence classes. [2025-01-09 03:45:19,890 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 121 of 121 statements. [2025-01-09 03:45:19,890 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:19,890 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:19,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 1439 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 03:45:19,897 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:45:20,036 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-09 03:45:20,040 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:45:20,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073945475] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:20,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:45:20,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-01-09 03:45:20,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537695256] [2025-01-09 03:45:20,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:20,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:45:20,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:20,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:45:20,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:45:20,042 INFO L87 Difference]: Start difference. First operand 1064 states and 1742 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 03:45:20,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:20,686 INFO L93 Difference]: Finished difference Result 2099 states and 3493 transitions. [2025-01-09 03:45:20,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:45:20,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 121 [2025-01-09 03:45:20,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:20,693 INFO L225 Difference]: With dead ends: 2099 [2025-01-09 03:45:20,693 INFO L226 Difference]: Without dead ends: 1080 [2025-01-09 03:45:20,698 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:45:20,699 INFO L435 NwaCegarLoop]: 861 mSDtfsCounter, 825 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 2203 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 03:45:20,699 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 2203 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 03:45:20,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1080 states. [2025-01-09 03:45:20,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1080 to 1080. [2025-01-09 03:45:20,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 837 states have (on average 1.6499402628434887) internal successors, (1381), 869 states have internal predecessors, (1381), 190 states have call successors, (190), 52 states have call predecessors, (190), 52 states have return successors, (197), 184 states have call predecessors, (197), 185 states have call successors, (197) [2025-01-09 03:45:20,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1768 transitions. [2025-01-09 03:45:20,737 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1768 transitions. Word has length 121 [2025-01-09 03:45:20,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:20,737 INFO L471 AbstractCegarLoop]: Abstraction has 1080 states and 1768 transitions. [2025-01-09 03:45:20,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 03:45:20,737 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1768 transitions. [2025-01-09 03:45:20,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2025-01-09 03:45:20,740 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:20,740 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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] [2025-01-09 03:45:20,752 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 03:45:20,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:45:20,941 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:20,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:20,942 INFO L85 PathProgramCache]: Analyzing trace with hash 633258987, now seen corresponding path program 1 times [2025-01-09 03:45:20,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:20,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090239673] [2025-01-09 03:45:20,942 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:20,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:20,969 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-01-09 03:45:20,976 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-01-09 03:45:20,976 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:20,976 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:21,039 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-09 03:45:21,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:21,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090239673] [2025-01-09 03:45:21,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090239673] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:45:21,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701589090] [2025-01-09 03:45:21,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:21,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:45:21,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:45:21,042 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 03:45:21,044 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 03:45:21,145 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-01-09 03:45:21,250 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-01-09 03:45:21,251 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:21,251 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:21,255 INFO L256 TraceCheckSpWp]: Trace formula consists of 1441 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 03:45:21,258 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:45:21,333 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-09 03:45:21,334 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:45:21,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1701589090] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:21,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:45:21,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-01-09 03:45:21,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400562283] [2025-01-09 03:45:21,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:21,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:45:21,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:21,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:45:21,336 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:45:21,336 INFO L87 Difference]: Start difference. First operand 1080 states and 1768 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 03:45:21,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:21,769 INFO L93 Difference]: Finished difference Result 2131 states and 3539 transitions. [2025-01-09 03:45:21,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:45:21,769 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 123 [2025-01-09 03:45:21,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:21,777 INFO L225 Difference]: With dead ends: 2131 [2025-01-09 03:45:21,777 INFO L226 Difference]: Without dead ends: 1096 [2025-01-09 03:45:21,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:45:21,784 INFO L435 NwaCegarLoop]: 858 mSDtfsCounter, 814 mSDsluCounter, 1342 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 2200 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 03:45:21,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 2200 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 03:45:21,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2025-01-09 03:45:21,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1096. [2025-01-09 03:45:21,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1096 states, 851 states have (on average 1.6509988249118683) internal successors, (1405), 883 states have internal predecessors, (1405), 190 states have call successors, (190), 54 states have call predecessors, (190), 54 states have return successors, (199), 184 states have call predecessors, (199), 185 states have call successors, (199) [2025-01-09 03:45:21,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1096 states to 1096 states and 1794 transitions. [2025-01-09 03:45:21,823 INFO L78 Accepts]: Start accepts. Automaton has 1096 states and 1794 transitions. Word has length 123 [2025-01-09 03:45:21,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:21,823 INFO L471 AbstractCegarLoop]: Abstraction has 1096 states and 1794 transitions. [2025-01-09 03:45:21,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-01-09 03:45:21,824 INFO L276 IsEmpty]: Start isEmpty. Operand 1096 states and 1794 transitions. [2025-01-09 03:45:21,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2025-01-09 03:45:21,826 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:21,827 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-01-09 03:45:21,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-09 03:45:22,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:45:22,031 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:22,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:22,032 INFO L85 PathProgramCache]: Analyzing trace with hash 942431899, now seen corresponding path program 1 times [2025-01-09 03:45:22,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:22,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260379518] [2025-01-09 03:45:22,032 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:22,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:22,043 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-01-09 03:45:22,067 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-01-09 03:45:22,068 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:22,068 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:22,259 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-01-09 03:45:22,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:22,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260379518] [2025-01-09 03:45:22,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260379518] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:45:22,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016224207] [2025-01-09 03:45:22,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:22,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:45:22,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:45:22,262 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 03:45:22,264 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 03:45:22,367 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-01-09 03:45:22,480 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-01-09 03:45:22,480 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:22,480 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:22,485 INFO L256 TraceCheckSpWp]: Trace formula consists of 1443 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 03:45:22,489 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:45:22,676 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 03:45:22,677 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:45:22,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2016224207] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:22,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:45:22,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 13 [2025-01-09 03:45:22,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202690005] [2025-01-09 03:45:22,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:22,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:45:22,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:22,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:45:22,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:45:22,679 INFO L87 Difference]: Start difference. First operand 1096 states and 1794 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2025-01-09 03:45:23,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:23,385 INFO L93 Difference]: Finished difference Result 1175 states and 1918 transitions. [2025-01-09 03:45:23,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:45:23,386 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 125 [2025-01-09 03:45:23,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:23,400 INFO L225 Difference]: With dead ends: 1175 [2025-01-09 03:45:23,403 INFO L226 Difference]: Without dead ends: 1160 [2025-01-09 03:45:23,405 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:45:23,405 INFO L435 NwaCegarLoop]: 875 mSDtfsCounter, 862 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 2233 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-09 03:45:23,405 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [870 Valid, 2233 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-09 03:45:23,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2025-01-09 03:45:23,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1100. [2025-01-09 03:45:23,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 855 states have (on average 1.647953216374269) internal successors, (1409), 887 states have internal predecessors, (1409), 190 states have call successors, (190), 54 states have call predecessors, (190), 54 states have return successors, (199), 184 states have call predecessors, (199), 185 states have call successors, (199) [2025-01-09 03:45:23,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1798 transitions. [2025-01-09 03:45:23,507 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1798 transitions. Word has length 125 [2025-01-09 03:45:23,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:23,507 INFO L471 AbstractCegarLoop]: Abstraction has 1100 states and 1798 transitions. [2025-01-09 03:45:23,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2025-01-09 03:45:23,508 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1798 transitions. [2025-01-09 03:45:23,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2025-01-09 03:45:23,510 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:23,510 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-01-09 03:45:23,518 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-09 03:45:23,710 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,SelfDestructingSolverStorable20 [2025-01-09 03:45:23,711 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:23,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:23,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1241180630, now seen corresponding path program 1 times [2025-01-09 03:45:23,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:23,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167126308] [2025-01-09 03:45:23,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:23,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:23,725 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-01-09 03:45:23,732 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-01-09 03:45:23,732 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:23,732 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:23,925 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2025-01-09 03:45:23,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:23,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167126308] [2025-01-09 03:45:23,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167126308] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:45:23,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101312411] [2025-01-09 03:45:23,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:23,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:45:23,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:45:23,927 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 03:45:23,931 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 03:45:24,046 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-01-09 03:45:24,160 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-01-09 03:45:24,160 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:24,160 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:24,164 INFO L256 TraceCheckSpWp]: Trace formula consists of 1459 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 03:45:24,168 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:45:24,204 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 03:45:24,204 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:45:24,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101312411] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:24,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:45:24,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2025-01-09 03:45:24,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523351934] [2025-01-09 03:45:24,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:24,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:45:24,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:24,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:45:24,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:45:24,206 INFO L87 Difference]: Start difference. First operand 1100 states and 1798 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 1 states have call successors, (14) [2025-01-09 03:45:24,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:24,239 INFO L93 Difference]: Finished difference Result 1115 states and 1816 transitions. [2025-01-09 03:45:24,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:45:24,239 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 1 states have call successors, (14) Word has length 131 [2025-01-09 03:45:24,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:24,245 INFO L225 Difference]: With dead ends: 1115 [2025-01-09 03:45:24,245 INFO L226 Difference]: Without dead ends: 1100 [2025-01-09 03:45:24,246 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:45:24,248 INFO L435 NwaCegarLoop]: 882 mSDtfsCounter, 0 mSDsluCounter, 2642 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3524 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 03:45:24,248 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3524 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:45:24,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1100 states. [2025-01-09 03:45:24,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1100 to 1100. [2025-01-09 03:45:24,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1100 states, 855 states have (on average 1.6456140350877193) internal successors, (1407), 887 states have internal predecessors, (1407), 190 states have call successors, (190), 54 states have call predecessors, (190), 54 states have return successors, (199), 184 states have call predecessors, (199), 185 states have call successors, (199) [2025-01-09 03:45:24,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1100 states to 1100 states and 1796 transitions. [2025-01-09 03:45:24,282 INFO L78 Accepts]: Start accepts. Automaton has 1100 states and 1796 transitions. Word has length 131 [2025-01-09 03:45:24,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:24,282 INFO L471 AbstractCegarLoop]: Abstraction has 1100 states and 1796 transitions. [2025-01-09 03:45:24,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 1 states have call successors, (14) [2025-01-09 03:45:24,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1100 states and 1796 transitions. [2025-01-09 03:45:24,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-01-09 03:45:24,286 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:24,286 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 03:45:24,297 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 03:45:24,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:45:24,487 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:24,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:24,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1324719732, now seen corresponding path program 1 times [2025-01-09 03:45:24,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:24,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391941766] [2025-01-09 03:45:24,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:24,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:24,500 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-01-09 03:45:24,541 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-01-09 03:45:24,541 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:24,541 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:24,749 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-01-09 03:45:24,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:24,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391941766] [2025-01-09 03:45:24,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391941766] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:45:24,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294651677] [2025-01-09 03:45:24,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:24,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:45:24,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:45:24,753 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 03:45:24,754 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 03:45:24,863 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-01-09 03:45:24,976 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-01-09 03:45:24,976 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:24,976 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:24,980 INFO L256 TraceCheckSpWp]: Trace formula consists of 1496 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-01-09 03:45:24,983 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:45:25,291 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-01-09 03:45:25,291 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:45:25,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294651677] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:25,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:45:25,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2025-01-09 03:45:25,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672449796] [2025-01-09 03:45:25,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:25,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:45:25,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:25,292 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:45:25,292 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2025-01-09 03:45:25,292 INFO L87 Difference]: Start difference. First operand 1100 states and 1796 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 5 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2025-01-09 03:45:28,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:28,338 INFO L93 Difference]: Finished difference Result 2290 states and 3771 transitions. [2025-01-09 03:45:28,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-09 03:45:28,339 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 5 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) Word has length 142 [2025-01-09 03:45:28,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:28,347 INFO L225 Difference]: With dead ends: 2290 [2025-01-09 03:45:28,347 INFO L226 Difference]: Without dead ends: 1235 [2025-01-09 03:45:28,351 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2025-01-09 03:45:28,352 INFO L435 NwaCegarLoop]: 569 mSDtfsCounter, 2111 mSDsluCounter, 1279 mSDsCounter, 0 mSdLazyCounter, 4707 mSolverCounterSat, 494 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2215 SdHoareTripleChecker+Valid, 1848 SdHoareTripleChecker+Invalid, 5201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 494 IncrementalHoareTripleChecker+Valid, 4707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2025-01-09 03:45:28,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2215 Valid, 1848 Invalid, 5201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [494 Valid, 4707 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2025-01-09 03:45:28,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1235 states. [2025-01-09 03:45:28,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1235 to 1186. [2025-01-09 03:45:28,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1186 states, 919 states have (on average 1.6343852013057671) internal successors, (1502), 955 states have internal predecessors, (1502), 206 states have call successors, (206), 56 states have call predecessors, (206), 60 states have return successors, (223), 200 states have call predecessors, (223), 201 states have call successors, (223) [2025-01-09 03:45:28,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1186 states to 1186 states and 1931 transitions. [2025-01-09 03:45:28,391 INFO L78 Accepts]: Start accepts. Automaton has 1186 states and 1931 transitions. Word has length 142 [2025-01-09 03:45:28,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:28,392 INFO L471 AbstractCegarLoop]: Abstraction has 1186 states and 1931 transitions. [2025-01-09 03:45:28,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 5 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (15), 5 states have call predecessors, (15), 4 states have call successors, (15) [2025-01-09 03:45:28,392 INFO L276 IsEmpty]: Start isEmpty. Operand 1186 states and 1931 transitions. [2025-01-09 03:45:28,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-01-09 03:45:28,395 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:28,395 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2025-01-09 03:45:28,403 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 03:45:28,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:45:28,596 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:28,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:28,596 INFO L85 PathProgramCache]: Analyzing trace with hash -299371920, now seen corresponding path program 1 times [2025-01-09 03:45:28,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:28,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503986028] [2025-01-09 03:45:28,597 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:28,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:28,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-01-09 03:45:28,614 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-01-09 03:45:28,615 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:28,615 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:28,807 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-01-09 03:45:28,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:28,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503986028] [2025-01-09 03:45:28,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503986028] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:45:28,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318402613] [2025-01-09 03:45:28,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:28,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:45:28,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:45:28,810 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 03:45:28,817 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 03:45:28,930 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-01-09 03:45:29,035 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-01-09 03:45:29,036 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:29,036 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:29,040 INFO L256 TraceCheckSpWp]: Trace formula consists of 1516 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-01-09 03:45:29,044 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:45:29,126 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 03:45:29,126 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:45:29,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318402613] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:29,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:45:29,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-01-09 03:45:29,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281163473] [2025-01-09 03:45:29,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:29,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:45:29,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:29,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:45:29,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:45:29,128 INFO L87 Difference]: Start difference. First operand 1186 states and 1931 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 03:45:30,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:30,485 INFO L93 Difference]: Finished difference Result 3736 states and 6207 transitions. [2025-01-09 03:45:30,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:45:30,485 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 147 [2025-01-09 03:45:30,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:30,498 INFO L225 Difference]: With dead ends: 3736 [2025-01-09 03:45:30,499 INFO L226 Difference]: Without dead ends: 2595 [2025-01-09 03:45:30,502 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:45:30,502 INFO L435 NwaCegarLoop]: 393 mSDtfsCounter, 1950 mSDsluCounter, 523 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2034 SdHoareTripleChecker+Valid, 916 SdHoareTripleChecker+Invalid, 1774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-01-09 03:45:30,503 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2034 Valid, 916 Invalid, 1774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-01-09 03:45:30,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2595 states. [2025-01-09 03:45:30,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2595 to 2483. [2025-01-09 03:45:30,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2483 states, 1895 states have (on average 1.6385224274406331) internal successors, (3105), 1977 states have internal predecessors, (3105), 464 states have call successors, (464), 107 states have call predecessors, (464), 123 states have return successors, (550), 460 states have call predecessors, (550), 459 states have call successors, (550) [2025-01-09 03:45:30,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2483 states to 2483 states and 4119 transitions. [2025-01-09 03:45:30,585 INFO L78 Accepts]: Start accepts. Automaton has 2483 states and 4119 transitions. Word has length 147 [2025-01-09 03:45:30,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:30,587 INFO L471 AbstractCegarLoop]: Abstraction has 2483 states and 4119 transitions. [2025-01-09 03:45:30,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 03:45:30,587 INFO L276 IsEmpty]: Start isEmpty. Operand 2483 states and 4119 transitions. [2025-01-09 03:45:30,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2025-01-09 03:45:30,591 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:30,591 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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 03:45:30,599 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-01-09 03:45:30,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:45:30,795 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:30,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:30,796 INFO L85 PathProgramCache]: Analyzing trace with hash -690744498, now seen corresponding path program 1 times [2025-01-09 03:45:30,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:30,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550024650] [2025-01-09 03:45:30,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:30,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:30,807 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-01-09 03:45:30,813 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-01-09 03:45:30,814 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:30,814 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:30,974 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-01-09 03:45:30,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:30,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550024650] [2025-01-09 03:45:30,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550024650] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:45:30,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985302740] [2025-01-09 03:45:30,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:30,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:45:30,975 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:45:30,977 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 03:45:30,984 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 03:45:31,098 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 148 statements into 1 equivalence classes. [2025-01-09 03:45:31,213 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 148 of 148 statements. [2025-01-09 03:45:31,213 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:31,214 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:31,218 INFO L256 TraceCheckSpWp]: Trace formula consists of 1518 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-01-09 03:45:31,221 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:45:31,337 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 03:45:31,337 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:45:31,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985302740] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:31,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:45:31,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-01-09 03:45:31,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842478746] [2025-01-09 03:45:31,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:31,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:45:31,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:31,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:45:31,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:45:31,339 INFO L87 Difference]: Start difference. First operand 2483 states and 4119 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 03:45:32,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:32,802 INFO L93 Difference]: Finished difference Result 8057 states and 13682 transitions. [2025-01-09 03:45:32,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:45:32,803 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 148 [2025-01-09 03:45:32,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:32,840 INFO L225 Difference]: With dead ends: 8057 [2025-01-09 03:45:32,840 INFO L226 Difference]: Without dead ends: 5619 [2025-01-09 03:45:32,853 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:45:32,853 INFO L435 NwaCegarLoop]: 367 mSDtfsCounter, 1957 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 427 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2040 SdHoareTripleChecker+Valid, 876 SdHoareTripleChecker+Invalid, 1760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 427 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-01-09 03:45:32,854 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2040 Valid, 876 Invalid, 1760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [427 Valid, 1333 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-01-09 03:45:32,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5619 states. [2025-01-09 03:45:33,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5619 to 5380. [2025-01-09 03:45:33,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5380 states, 4028 states have (on average 1.63480635551142) internal successors, (6585), 4224 states have internal predecessors, (6585), 1094 states have call successors, (1094), 209 states have call predecessors, (1094), 257 states have return successors, (1444), 1098 states have call predecessors, (1444), 1089 states have call successors, (1444) [2025-01-09 03:45:33,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5380 states to 5380 states and 9123 transitions. [2025-01-09 03:45:33,113 INFO L78 Accepts]: Start accepts. Automaton has 5380 states and 9123 transitions. Word has length 148 [2025-01-09 03:45:33,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:33,114 INFO L471 AbstractCegarLoop]: Abstraction has 5380 states and 9123 transitions. [2025-01-09 03:45:33,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 states have internal predecessors, (97), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 03:45:33,114 INFO L276 IsEmpty]: Start isEmpty. Operand 5380 states and 9123 transitions. [2025-01-09 03:45:33,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-01-09 03:45:33,118 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:33,119 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2025-01-09 03:45:33,128 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-01-09 03:45:33,323 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,SelfDestructingSolverStorable24 [2025-01-09 03:45:33,323 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:33,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:33,324 INFO L85 PathProgramCache]: Analyzing trace with hash 61611378, now seen corresponding path program 1 times [2025-01-09 03:45:33,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:33,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824577835] [2025-01-09 03:45:33,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:33,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:33,335 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-01-09 03:45:33,342 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-01-09 03:45:33,342 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:33,342 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:33,546 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-01-09 03:45:33,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:33,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824577835] [2025-01-09 03:45:33,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [824577835] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:45:33,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177871749] [2025-01-09 03:45:33,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:33,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:45:33,546 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:45:33,549 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 03:45:33,553 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 03:45:33,666 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-01-09 03:45:33,771 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-01-09 03:45:33,772 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:33,772 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:33,776 INFO L256 TraceCheckSpWp]: Trace formula consists of 1520 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-01-09 03:45:33,779 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:45:33,856 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 03:45:33,857 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:45:33,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177871749] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:33,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:45:33,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-01-09 03:45:33,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627691936] [2025-01-09 03:45:33,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:33,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:45:33,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:33,858 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:45:33,858 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:45:33,858 INFO L87 Difference]: Start difference. First operand 5380 states and 9123 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 03:45:35,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:35,612 INFO L93 Difference]: Finished difference Result 17850 states and 31309 transitions. [2025-01-09 03:45:35,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:45:35,612 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 149 [2025-01-09 03:45:35,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:35,811 INFO L225 Difference]: With dead ends: 17850 [2025-01-09 03:45:35,811 INFO L226 Difference]: Without dead ends: 12515 [2025-01-09 03:45:35,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:45:35,850 INFO L435 NwaCegarLoop]: 364 mSDtfsCounter, 1945 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 1332 mSolverCounterSat, 431 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2027 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 1763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 431 IncrementalHoareTripleChecker+Valid, 1332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2025-01-09 03:45:35,854 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2027 Valid, 870 Invalid, 1763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [431 Valid, 1332 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2025-01-09 03:45:35,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12515 states. [2025-01-09 03:45:36,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12515 to 12021. [2025-01-09 03:45:36,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12021 states, 8801 states have (on average 1.6260652198613794) internal successors, (14311), 9283 states have internal predecessors, (14311), 2674 states have call successors, (2674), 413 states have call predecessors, (2674), 545 states have return successors, (4010), 2706 states have call predecessors, (4010), 2669 states have call successors, (4010) [2025-01-09 03:45:36,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12021 states to 12021 states and 20995 transitions. [2025-01-09 03:45:36,688 INFO L78 Accepts]: Start accepts. Automaton has 12021 states and 20995 transitions. Word has length 149 [2025-01-09 03:45:36,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:36,690 INFO L471 AbstractCegarLoop]: Abstraction has 12021 states and 20995 transitions. [2025-01-09 03:45:36,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 03:45:36,690 INFO L276 IsEmpty]: Start isEmpty. Operand 12021 states and 20995 transitions. [2025-01-09 03:45:36,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2025-01-09 03:45:36,695 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:36,695 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:45:36,704 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-01-09 03:45:36,897 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,SelfDestructingSolverStorable25 [2025-01-09 03:45:36,898 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:36,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:36,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1909810960, now seen corresponding path program 1 times [2025-01-09 03:45:36,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:36,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062372446] [2025-01-09 03:45:36,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:36,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:36,915 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes. [2025-01-09 03:45:36,925 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements. [2025-01-09 03:45:36,926 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:36,926 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:37,162 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-01-09 03:45:37,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:37,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062372446] [2025-01-09 03:45:37,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062372446] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:45:37,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1074104876] [2025-01-09 03:45:37,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:37,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:45:37,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:45:37,167 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 03:45:37,174 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 03:45:37,309 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 150 statements into 1 equivalence classes. [2025-01-09 03:45:37,432 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 150 of 150 statements. [2025-01-09 03:45:37,432 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:37,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:37,437 INFO L256 TraceCheckSpWp]: Trace formula consists of 1522 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-01-09 03:45:37,442 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:45:37,568 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 03:45:37,569 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:45:37,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1074104876] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:37,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:45:37,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-01-09 03:45:37,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324732645] [2025-01-09 03:45:37,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:37,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:45:37,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:37,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:45:37,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:45:37,570 INFO L87 Difference]: Start difference. First operand 12021 states and 20995 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 03:45:39,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:39,980 INFO L93 Difference]: Finished difference Result 40603 states and 74840 transitions. [2025-01-09 03:45:39,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:45:39,980 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 150 [2025-01-09 03:45:39,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:40,209 INFO L225 Difference]: With dead ends: 40603 [2025-01-09 03:45:40,209 INFO L226 Difference]: Without dead ends: 28627 [2025-01-09 03:45:40,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:45:40,266 INFO L435 NwaCegarLoop]: 361 mSDtfsCounter, 1933 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 1333 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2014 SdHoareTripleChecker+Valid, 867 SdHoareTripleChecker+Invalid, 1767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 1333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-01-09 03:45:40,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2014 Valid, 867 Invalid, 1767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 1333 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-01-09 03:45:40,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28627 states. [2025-01-09 03:45:41,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28627 to 27678. [2025-01-09 03:45:41,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27678 states, 19778 states have (on average 1.613965011629083) internal successors, (31921), 20986 states have internal predecessors, (31921), 6726 states have call successors, (6726), 821 states have call predecessors, (6726), 1173 states have return successors, (11720), 6850 states have call predecessors, (11720), 6721 states have call successors, (11720) [2025-01-09 03:45:42,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27678 states to 27678 states and 50367 transitions. [2025-01-09 03:45:42,381 INFO L78 Accepts]: Start accepts. Automaton has 27678 states and 50367 transitions. Word has length 150 [2025-01-09 03:45:42,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:42,382 INFO L471 AbstractCegarLoop]: Abstraction has 27678 states and 50367 transitions. [2025-01-09 03:45:42,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 03:45:42,382 INFO L276 IsEmpty]: Start isEmpty. Operand 27678 states and 50367 transitions. [2025-01-09 03:45:42,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2025-01-09 03:45:42,386 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:42,386 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2025-01-09 03:45:42,397 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 03:45:42,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:45:42,591 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:42,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:42,591 INFO L85 PathProgramCache]: Analyzing trace with hash -925540236, now seen corresponding path program 1 times [2025-01-09 03:45:42,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:42,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554664853] [2025-01-09 03:45:42,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:42,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:42,605 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 151 statements into 1 equivalence classes. [2025-01-09 03:45:42,612 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 151 of 151 statements. [2025-01-09 03:45:42,613 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:42,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:42,826 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-01-09 03:45:42,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:42,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554664853] [2025-01-09 03:45:42,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554664853] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:45:42,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786513219] [2025-01-09 03:45:42,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:42,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:45:42,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:45:42,831 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 03:45:42,844 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 03:45:42,989 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 151 statements into 1 equivalence classes. [2025-01-09 03:45:43,106 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 151 of 151 statements. [2025-01-09 03:45:43,107 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:43,107 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:43,111 INFO L256 TraceCheckSpWp]: Trace formula consists of 1524 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-01-09 03:45:43,116 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:45:43,210 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 03:45:43,211 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:45:43,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786513219] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:43,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:45:43,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-01-09 03:45:43,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3600142] [2025-01-09 03:45:43,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:43,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:45:43,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:43,212 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:45:43,212 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:45:43,212 INFO L87 Difference]: Start difference. First operand 27678 states and 50367 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 03:45:47,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:47,688 INFO L93 Difference]: Finished difference Result 94798 states and 188678 transitions. [2025-01-09 03:45:47,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:45:47,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 151 [2025-01-09 03:45:47,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:48,489 INFO L225 Difference]: With dead ends: 94798 [2025-01-09 03:45:48,489 INFO L226 Difference]: Without dead ends: 67155 [2025-01-09 03:45:48,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:45:48,718 INFO L435 NwaCegarLoop]: 450 mSDtfsCounter, 1908 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 1336 mSolverCounterSat, 426 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1988 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 1762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 426 IncrementalHoareTripleChecker+Valid, 1336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:45:48,719 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1988 Valid, 960 Invalid, 1762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [426 Valid, 1336 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-01-09 03:45:48,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67155 states. [2025-01-09 03:45:52,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67155 to 65637. [2025-01-09 03:45:52,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65637 states, 45772 states have (on average 1.5996679192519445) internal successors, (73220), 48842 states have internal predecessors, (73220), 17298 states have call successors, (17298), 1635 states have call predecessors, (17298), 2566 states have return successors, (36009), 17713 states have call predecessors, (36009), 17293 states have call successors, (36009) [2025-01-09 03:45:53,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65637 states to 65637 states and 126527 transitions. [2025-01-09 03:45:54,040 INFO L78 Accepts]: Start accepts. Automaton has 65637 states and 126527 transitions. Word has length 151 [2025-01-09 03:45:54,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:54,040 INFO L471 AbstractCegarLoop]: Abstraction has 65637 states and 126527 transitions. [2025-01-09 03:45:54,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (17), 4 states have call predecessors, (17), 3 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 03:45:54,040 INFO L276 IsEmpty]: Start isEmpty. Operand 65637 states and 126527 transitions. [2025-01-09 03:45:54,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2025-01-09 03:45:54,085 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:54,086 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:45:54,095 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 03:45:54,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2025-01-09 03:45:54,286 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:54,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:54,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1342350490, now seen corresponding path program 1 times [2025-01-09 03:45:54,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:54,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327535329] [2025-01-09 03:45:54,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:54,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:54,310 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 206 statements into 1 equivalence classes. [2025-01-09 03:45:54,324 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 206 of 206 statements. [2025-01-09 03:45:54,324 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:54,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:54,541 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2025-01-09 03:45:54,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:54,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327535329] [2025-01-09 03:45:54,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327535329] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:45:54,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315389651] [2025-01-09 03:45:54,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:54,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:45:54,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:45:54,545 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 03:45:54,546 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 03:45:54,679 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 206 statements into 1 equivalence classes. [2025-01-09 03:45:54,811 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 206 of 206 statements. [2025-01-09 03:45:54,811 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:54,811 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:54,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 1937 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:45:54,820 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:45:54,844 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2025-01-09 03:45:54,844 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:45:54,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315389651] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:45:54,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:45:54,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-01-09 03:45:54,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864688869] [2025-01-09 03:45:54,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:45:54,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:45:54,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:54,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:45:54,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:45:54,846 INFO L87 Difference]: Start difference. First operand 65637 states and 126527 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2025-01-09 03:45:59,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:59,404 INFO L93 Difference]: Finished difference Result 134108 states and 268329 transitions. [2025-01-09 03:45:59,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:45:59,405 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 206 [2025-01-09 03:45:59,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:46:00,265 INFO L225 Difference]: With dead ends: 134108 [2025-01-09 03:46:00,266 INFO L226 Difference]: Without dead ends: 68517 [2025-01-09 03:46:00,763 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:46:00,763 INFO L435 NwaCegarLoop]: 823 mSDtfsCounter, 144 mSDsluCounter, 1623 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 2446 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:46:00,763 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 2446 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:46:00,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68517 states. [2025-01-09 03:46:04,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68517 to 68133. [2025-01-09 03:46:04,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68133 states, 48204 states have (on average 1.615882499377645) internal successors, (77892), 51274 states have internal predecessors, (77892), 17298 states have call successors, (17298), 1699 states have call predecessors, (17298), 2630 states have return successors, (36009), 17713 states have call predecessors, (36009), 17293 states have call successors, (36009) [2025-01-09 03:46:05,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68133 states to 68133 states and 131199 transitions. [2025-01-09 03:46:05,455 INFO L78 Accepts]: Start accepts. Automaton has 68133 states and 131199 transitions. Word has length 206 [2025-01-09 03:46:05,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:46:05,455 INFO L471 AbstractCegarLoop]: Abstraction has 68133 states and 131199 transitions. [2025-01-09 03:46:05,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2025-01-09 03:46:05,456 INFO L276 IsEmpty]: Start isEmpty. Operand 68133 states and 131199 transitions. [2025-01-09 03:46:05,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2025-01-09 03:46:05,472 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:46:05,472 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:46:05,485 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 03:46:05,673 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,SelfDestructingSolverStorable28 [2025-01-09 03:46:05,673 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:46:05,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:46:05,674 INFO L85 PathProgramCache]: Analyzing trace with hash -2111153115, now seen corresponding path program 1 times [2025-01-09 03:46:05,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:46:05,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351391029] [2025-01-09 03:46:05,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:46:05,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:46:05,695 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 302 statements into 1 equivalence classes. [2025-01-09 03:46:05,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 302 of 302 statements. [2025-01-09 03:46:05,703 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:46:05,703 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:46:06,524 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 31 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2025-01-09 03:46:06,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:46:06,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351391029] [2025-01-09 03:46:06,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351391029] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:46:06,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672192665] [2025-01-09 03:46:06,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:46:06,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:46:06,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:46:06,532 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 03:46:06,534 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 03:46:06,775 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 302 statements into 1 equivalence classes. [2025-01-09 03:46:07,019 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 302 of 302 statements. [2025-01-09 03:46:07,019 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:46:07,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:46:07,028 INFO L256 TraceCheckSpWp]: Trace formula consists of 2412 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-09 03:46:07,044 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:46:07,598 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 25 proven. 11 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2025-01-09 03:46:07,599 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 03:46:08,789 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 14 proven. 17 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2025-01-09 03:46:08,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672192665] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 03:46:08,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 03:46:08,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 25 [2025-01-09 03:46:08,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969669682] [2025-01-09 03:46:08,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 03:46:08,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-01-09 03:46:08,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:46:08,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-01-09 03:46:08,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=515, Unknown=0, NotChecked=0, Total=600 [2025-01-09 03:46:08,792 INFO L87 Difference]: Start difference. First operand 68133 states and 131199 transitions. Second operand has 25 states, 25 states have (on average 16.88) internal successors, (422), 23 states have internal predecessors, (422), 14 states have call successors, (92), 8 states have call predecessors, (92), 15 states have return successors, (94), 18 states have call predecessors, (94), 13 states have call successors, (94)