./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec1_product32.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec1_product32.cil.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d29c49d66a80c5cce6b00f5730e0d825d56678e7df63108e14ba577a66cb87d7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 03:43:50,829 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 03:43:50,908 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 03:43:50,912 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 03:43:50,913 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 03:43:50,937 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 03:43:50,939 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 03:43:50,939 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 03:43:50,939 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 03:43:50,939 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 03:43:50,940 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 03:43:50,941 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 03:43:50,941 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 03:43:50,941 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 03:43:50,942 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 03:43:50,942 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 03:43:50,942 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 03:43:50,942 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 03:43:50,942 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 03:43:50,943 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 03:43:50,943 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 03:43:50,943 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 03:43:50,943 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 03:43:50,943 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 03:43:50,943 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 03:43:50,943 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 03:43:50,943 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 03:43:50,943 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 03:43:50,944 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 03:43:50,944 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:43:50,944 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:43:50,944 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:43:50,944 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:43:50,944 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 03:43:50,944 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:43:50,944 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:43:50,944 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:43:50,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:43:50,945 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 03:43:50,945 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 03:43:50,945 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 03:43:50,945 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 03:43:50,945 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 03:43:50,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 03:43:50,945 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 03:43:50,945 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 03:43:50,945 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 03:43:50,945 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 03:43:50,945 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 -> d29c49d66a80c5cce6b00f5730e0d825d56678e7df63108e14ba577a66cb87d7 [2025-01-09 03:43:51,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 03:43:51,244 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 03:43:51,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 03:43:51,248 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 03:43:51,248 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 03:43:51,250 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec1_product32.cil.c [2025-01-09 03:43:52,555 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/24d810c72/f390485c52b9440884896a342dba6711/FLAG8cb6c5cda [2025-01-09 03:43:52,966 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 03:43:52,970 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec1_product32.cil.c [2025-01-09 03:43:52,993 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/24d810c72/f390485c52b9440884896a342dba6711/FLAG8cb6c5cda [2025-01-09 03:43:53,007 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/24d810c72/f390485c52b9440884896a342dba6711 [2025-01-09 03:43:53,011 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 03:43:53,013 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 03:43:53,014 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 03:43:53,014 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 03:43:53,018 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 03:43:53,019 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:43:53" (1/1) ... [2025-01-09 03:43:53,020 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69b657fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:43:53, skipping insertion in model container [2025-01-09 03:43:53,020 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:43:53" (1/1) ... [2025-01-09 03:43:53,082 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 03:43:53,280 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec1_product32.cil.c[4316,4329] [2025-01-09 03:43:53,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:43:53,645 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 03:43:53,654 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [48] [2025-01-09 03:43:53,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [169] [2025-01-09 03:43:53,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [185] [2025-01-09 03:43:53,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [194] [2025-01-09 03:43:53,657 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1871] [2025-01-09 03:43:53,657 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2228] [2025-01-09 03:43:53,657 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [2263] [2025-01-09 03:43:53,657 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2444] [2025-01-09 03:43:53,657 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2810] [2025-01-09 03:43:53,658 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3475] [2025-01-09 03:43:53,664 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec1_product32.cil.c[4316,4329] [2025-01-09 03:43:53,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:43:53,811 INFO L204 MainTranslator]: Completed translation [2025-01-09 03:43:53,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:43:53 WrapperNode [2025-01-09 03:43:53,813 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 03:43:53,814 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 03:43:53,815 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 03:43:53,815 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 03:43:53,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:43:53" (1/1) ... [2025-01-09 03:43:53,844 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:43:53" (1/1) ... [2025-01-09 03:43:53,894 INFO L138 Inliner]: procedures = 99, calls = 356, calls flagged for inlining = 29, calls inlined = 25, statements flattened = 966 [2025-01-09 03:43:53,897 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 03:43:53,898 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 03:43:53,898 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 03:43:53,898 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 03:43:53,906 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:43:53" (1/1) ... [2025-01-09 03:43:53,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:43:53" (1/1) ... [2025-01-09 03:43:53,913 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:43:53" (1/1) ... [2025-01-09 03:43:53,957 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2025-01-09 03:43:53,957 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:43:53" (1/1) ... [2025-01-09 03:43:53,959 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:43:53" (1/1) ... [2025-01-09 03:43:53,977 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:43:53" (1/1) ... [2025-01-09 03:43:53,980 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:43:53" (1/1) ... [2025-01-09 03:43:53,994 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:43:53" (1/1) ... [2025-01-09 03:43:54,004 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:43:53" (1/1) ... [2025-01-09 03:43:54,017 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:43:53" (1/1) ... [2025-01-09 03:43:54,031 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 03:43:54,032 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 03:43:54,032 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 03:43:54,032 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 03:43:54,033 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:43:53" (1/1) ... [2025-01-09 03:43:54,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:43:54,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:54,064 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 03:43:54,070 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 03:43:54,087 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2025-01-09 03:43:54,087 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2025-01-09 03:43:54,087 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2025-01-09 03:43:54,087 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2025-01-09 03:43:54,087 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2025-01-09 03:43:54,087 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2025-01-09 03:43:54,088 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2025-01-09 03:43:54,088 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2025-01-09 03:43:54,088 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-01-09 03:43:54,088 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-01-09 03:43:54,088 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2025-01-09 03:43:54,088 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2025-01-09 03:43:54,088 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2025-01-09 03:43:54,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2025-01-09 03:43:54,088 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2025-01-09 03:43:54,088 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2025-01-09 03:43:54,089 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2025-01-09 03:43:54,089 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2025-01-09 03:43:54,089 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2025-01-09 03:43:54,089 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2025-01-09 03:43:54,089 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2025-01-09 03:43:54,089 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2025-01-09 03:43:54,089 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2025-01-09 03:43:54,089 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2025-01-09 03:43:54,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 03:43:54,089 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2025-01-09 03:43:54,089 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2025-01-09 03:43:54,090 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2025-01-09 03:43:54,090 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2025-01-09 03:43:54,090 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2025-01-09 03:43:54,090 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2025-01-09 03:43:54,090 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2025-01-09 03:43:54,090 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2025-01-09 03:43:54,090 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-01-09 03:43:54,090 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-01-09 03:43:54,090 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2025-01-09 03:43:54,090 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2025-01-09 03:43:54,090 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2025-01-09 03:43:54,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2025-01-09 03:43:54,090 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2025-01-09 03:43:54,090 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2025-01-09 03:43:54,090 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2025-01-09 03:43:54,091 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2025-01-09 03:43:54,091 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2025-01-09 03:43:54,091 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2025-01-09 03:43:54,091 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2025-01-09 03:43:54,091 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2025-01-09 03:43:54,091 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2025-01-09 03:43:54,091 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2025-01-09 03:43:54,091 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2025-01-09 03:43:54,091 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2025-01-09 03:43:54,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 03:43:54,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 03:43:54,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 03:43:54,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 03:43:54,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 03:43:54,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 03:43:54,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 03:43:54,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 03:43:54,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-01-09 03:43:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-01-09 03:43:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-01-09 03:43:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-01-09 03:43:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-01-09 03:43:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-01-09 03:43:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-01-09 03:43:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-01-09 03:43:54,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-01-09 03:43:54,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-01-09 03:43:54,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-01-09 03:43:54,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-01-09 03:43:54,093 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2025-01-09 03:43:54,093 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2025-01-09 03:43:54,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 03:43:54,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 03:43:54,093 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2025-01-09 03:43:54,093 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2025-01-09 03:43:54,094 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2025-01-09 03:43:54,094 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2025-01-09 03:43:54,292 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 03:43:54,294 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 03:43:55,652 INFO L? ?]: Removed 485 outVars from TransFormulas that were not future-live. [2025-01-09 03:43:55,652 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 03:43:55,684 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 03:43:55,684 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 03:43:55,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:43:55 BoogieIcfgContainer [2025-01-09 03:43:55,685 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 03:43:55,686 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 03:43:55,686 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 03:43:55,690 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 03:43:55,690 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 03:43:53" (1/3) ... [2025-01-09 03:43:55,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69427201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:43:55, skipping insertion in model container [2025-01-09 03:43:55,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:43:53" (2/3) ... [2025-01-09 03:43:55,691 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69427201 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:43:55, skipping insertion in model container [2025-01-09 03:43:55,691 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:43:55" (3/3) ... [2025-01-09 03:43:55,692 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product32.cil.c [2025-01-09 03:43:55,713 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 03:43:55,718 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec1_product32.cil.c that has 29 procedures, 611 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 03:43:55,805 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 03:43:55,816 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;@20a21f71, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 03:43:55,817 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 03:43:55,823 INFO L276 IsEmpty]: Start isEmpty. Operand has 611 states, 473 states have (on average 1.6723044397463003) internal successors, (791), 496 states have internal predecessors, (791), 108 states have call successors, (108), 28 states have call predecessors, (108), 28 states have return successors, (108), 101 states have call predecessors, (108), 108 states have call successors, (108) [2025-01-09 03:43:55,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2025-01-09 03:43:55,843 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:55,844 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:43:55,844 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:55,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:55,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1692982090, now seen corresponding path program 1 times [2025-01-09 03:43:55,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:55,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120561892] [2025-01-09 03:43:55,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:55,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:56,021 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-01-09 03:43:56,118 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-01-09 03:43:56,119 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:56,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:56,500 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-09 03:43:56,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:56,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120561892] [2025-01-09 03:43:56,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120561892] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:56,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124491528] [2025-01-09 03:43:56,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:56,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:56,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:56,507 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 03:43:56,509 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 03:43:56,701 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 83 statements into 1 equivalence classes. [2025-01-09 03:43:56,960 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 83 of 83 statements. [2025-01-09 03:43:56,960 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:56,960 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:56,969 INFO L256 TraceCheckSpWp]: Trace formula consists of 1723 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 03:43:56,977 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:57,003 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-01-09 03:43:57,004 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:57,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124491528] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:57,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:57,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 4 [2025-01-09 03:43:57,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327864184] [2025-01-09 03:43:57,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:57,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 03:43:57,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:57,039 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 03:43:57,039 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:43:57,044 INFO L87 Difference]: Start difference. First operand has 611 states, 473 states have (on average 1.6723044397463003) internal successors, (791), 496 states have internal predecessors, (791), 108 states have call successors, (108), 28 states have call predecessors, (108), 28 states have return successors, (108), 101 states have call predecessors, (108), 108 states have call successors, (108) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2025-01-09 03:43:57,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:57,146 INFO L93 Difference]: Finished difference Result 632 states and 1037 transitions. [2025-01-09 03:43:57,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 03:43:57,150 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 83 [2025-01-09 03:43:57,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:57,168 INFO L225 Difference]: With dead ends: 632 [2025-01-09 03:43:57,168 INFO L226 Difference]: Without dead ends: 603 [2025-01-09 03:43:57,172 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 84 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 03:43:57,174 INFO L435 NwaCegarLoop]: 999 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 999 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:57,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 999 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:57,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2025-01-09 03:43:57,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 603. [2025-01-09 03:43:57,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 467 states have (on average 1.6723768736616702) internal successors, (781), 488 states have internal predecessors, (781), 108 states have call successors, (108), 28 states have call predecessors, (108), 27 states have return successors, (103), 100 states have call predecessors, (103), 103 states have call successors, (103) [2025-01-09 03:43:57,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 992 transitions. [2025-01-09 03:43:57,284 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 992 transitions. Word has length 83 [2025-01-09 03:43:57,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:57,285 INFO L471 AbstractCegarLoop]: Abstraction has 603 states and 992 transitions. [2025-01-09 03:43:57,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2025-01-09 03:43:57,286 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 992 transitions. [2025-01-09 03:43:57,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2025-01-09 03:43:57,292 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:57,293 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:43:57,304 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 03:43:57,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-01-09 03:43:57,494 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:57,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:57,496 INFO L85 PathProgramCache]: Analyzing trace with hash 2106867624, now seen corresponding path program 1 times [2025-01-09 03:43:57,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:57,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784344449] [2025-01-09 03:43:57,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:57,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:57,532 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-01-09 03:43:57,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-01-09 03:43:57,558 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:57,558 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:57,790 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-09 03:43:57,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:57,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784344449] [2025-01-09 03:43:57,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784344449] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:57,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340192507] [2025-01-09 03:43:57,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:57,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:57,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:57,796 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 03:43:57,805 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 03:43:57,995 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 84 statements into 1 equivalence classes. [2025-01-09 03:43:58,254 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 84 of 84 statements. [2025-01-09 03:43:58,254 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:58,254 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:58,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 1725 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:43:58,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:58,326 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 03:43:58,327 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:58,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340192507] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:58,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:58,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:43:58,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060647276] [2025-01-09 03:43:58,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:58,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:43:58,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:58,329 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:43:58,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:43:58,329 INFO L87 Difference]: Start difference. First operand 603 states and 992 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 03:43:58,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:58,435 INFO L93 Difference]: Finished difference Result 1197 states and 1976 transitions. [2025-01-09 03:43:58,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:43:58,436 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 84 [2025-01-09 03:43:58,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:58,442 INFO L225 Difference]: With dead ends: 1197 [2025-01-09 03:43:58,442 INFO L226 Difference]: Without dead ends: 603 [2025-01-09 03:43:58,449 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:43:58,451 INFO L435 NwaCegarLoop]: 980 mSDtfsCounter, 5 mSDsluCounter, 1954 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2934 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:58,451 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2934 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:58,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2025-01-09 03:43:58,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 603. [2025-01-09 03:43:58,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 467 states have (on average 1.6702355460385439) internal successors, (780), 488 states have internal predecessors, (780), 108 states have call successors, (108), 28 states have call predecessors, (108), 27 states have return successors, (103), 100 states have call predecessors, (103), 103 states have call successors, (103) [2025-01-09 03:43:58,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 991 transitions. [2025-01-09 03:43:58,493 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 991 transitions. Word has length 84 [2025-01-09 03:43:58,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:58,494 INFO L471 AbstractCegarLoop]: Abstraction has 603 states and 991 transitions. [2025-01-09 03:43:58,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 03:43:58,494 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 991 transitions. [2025-01-09 03:43:58,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2025-01-09 03:43:58,497 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:58,497 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:43:58,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-09 03:43:58,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:58,698 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:58,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:58,700 INFO L85 PathProgramCache]: Analyzing trace with hash -890067692, now seen corresponding path program 1 times [2025-01-09 03:43:58,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:58,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914341032] [2025-01-09 03:43:58,700 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:58,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:58,729 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-01-09 03:43:58,746 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-01-09 03:43:58,747 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:58,747 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:58,964 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-09 03:43:58,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:58,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914341032] [2025-01-09 03:43:58,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914341032] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:58,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1026161445] [2025-01-09 03:43:58,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:58,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:58,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:58,969 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 03:43:58,977 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 03:43:59,126 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 86 statements into 1 equivalence classes. [2025-01-09 03:43:59,338 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 86 of 86 statements. [2025-01-09 03:43:59,339 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:59,339 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:59,347 INFO L256 TraceCheckSpWp]: Trace formula consists of 1727 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:43:59,353 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:59,385 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 03:43:59,386 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:59,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1026161445] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:59,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:59,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:43:59,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10429345] [2025-01-09 03:43:59,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:59,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:43:59,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:59,389 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:43:59,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:43:59,390 INFO L87 Difference]: Start difference. First operand 603 states and 991 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 03:43:59,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:59,469 INFO L93 Difference]: Finished difference Result 1197 states and 1974 transitions. [2025-01-09 03:43:59,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:43:59,470 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 86 [2025-01-09 03:43:59,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:59,475 INFO L225 Difference]: With dead ends: 1197 [2025-01-09 03:43:59,476 INFO L226 Difference]: Without dead ends: 603 [2025-01-09 03:43:59,478 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:43:59,479 INFO L435 NwaCegarLoop]: 980 mSDtfsCounter, 4 mSDsluCounter, 1954 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2934 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:43:59,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2934 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:59,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2025-01-09 03:43:59,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 603. [2025-01-09 03:43:59,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 467 states have (on average 1.6680942184154175) internal successors, (779), 488 states have internal predecessors, (779), 108 states have call successors, (108), 28 states have call predecessors, (108), 27 states have return successors, (103), 100 states have call predecessors, (103), 103 states have call successors, (103) [2025-01-09 03:43:59,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 990 transitions. [2025-01-09 03:43:59,508 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 990 transitions. Word has length 86 [2025-01-09 03:43:59,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:59,508 INFO L471 AbstractCegarLoop]: Abstraction has 603 states and 990 transitions. [2025-01-09 03:43:59,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 03:43:59,509 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 990 transitions. [2025-01-09 03:43:59,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2025-01-09 03:43:59,513 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:59,513 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:43:59,524 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 03:43:59,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:59,717 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:59,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:59,718 INFO L85 PathProgramCache]: Analyzing trace with hash 912697960, now seen corresponding path program 1 times [2025-01-09 03:43:59,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:59,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756326495] [2025-01-09 03:43:59,718 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:59,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:59,737 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-01-09 03:43:59,753 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-01-09 03:43:59,754 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:59,754 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:59,888 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-09 03:43:59,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:59,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756326495] [2025-01-09 03:43:59,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756326495] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:59,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993308603] [2025-01-09 03:43:59,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:59,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:59,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:59,891 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 03:43:59,893 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 03:44:00,044 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-01-09 03:44:00,239 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-01-09 03:44:00,239 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:00,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:00,246 INFO L256 TraceCheckSpWp]: Trace formula consists of 1729 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:44:00,251 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:00,283 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 03:44:00,285 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:00,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993308603] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:00,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:00,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:44:00,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877711800] [2025-01-09 03:44:00,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:00,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:00,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:00,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:00,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:44:00,288 INFO L87 Difference]: Start difference. First operand 603 states and 990 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 03:44:00,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:00,396 INFO L93 Difference]: Finished difference Result 1204 states and 1981 transitions. [2025-01-09 03:44:00,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:44:00,397 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 88 [2025-01-09 03:44:00,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:00,403 INFO L225 Difference]: With dead ends: 1204 [2025-01-09 03:44:00,403 INFO L226 Difference]: Without dead ends: 612 [2025-01-09 03:44:00,405 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:44:00,406 INFO L435 NwaCegarLoop]: 979 mSDtfsCounter, 13 mSDsluCounter, 1952 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2931 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:00,407 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2931 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:44:00,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2025-01-09 03:44:00,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2025-01-09 03:44:00,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 475 states have (on average 1.6652631578947368) internal successors, (791), 496 states have internal predecessors, (791), 108 states have call successors, (108), 29 states have call predecessors, (108), 28 states have return successors, (103), 100 states have call predecessors, (103), 103 states have call successors, (103) [2025-01-09 03:44:00,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 1002 transitions. [2025-01-09 03:44:00,451 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 1002 transitions. Word has length 88 [2025-01-09 03:44:00,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:00,452 INFO L471 AbstractCegarLoop]: Abstraction has 612 states and 1002 transitions. [2025-01-09 03:44:00,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 03:44:00,453 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 1002 transitions. [2025-01-09 03:44:00,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2025-01-09 03:44:00,455 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:00,455 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:00,465 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-09 03:44:00,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:00,656 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:00,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:00,656 INFO L85 PathProgramCache]: Analyzing trace with hash 1390679615, now seen corresponding path program 1 times [2025-01-09 03:44:00,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:00,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572467135] [2025-01-09 03:44:00,657 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:00,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:00,673 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-01-09 03:44:00,685 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-01-09 03:44:00,685 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:00,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:00,796 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-09 03:44:00,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:00,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572467135] [2025-01-09 03:44:00,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572467135] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:00,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384877154] [2025-01-09 03:44:00,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:00,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:00,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:00,800 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 03:44:00,806 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 03:44:00,940 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 89 statements into 1 equivalence classes. [2025-01-09 03:44:01,122 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 89 of 89 statements. [2025-01-09 03:44:01,123 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:01,123 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:01,131 INFO L256 TraceCheckSpWp]: Trace formula consists of 1730 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:44:01,135 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:01,160 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 03:44:01,163 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:01,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384877154] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:01,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:01,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:44:01,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471148327] [2025-01-09 03:44:01,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:01,167 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:01,167 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:01,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:01,168 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:44:01,168 INFO L87 Difference]: Start difference. First operand 612 states and 1002 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 03:44:01,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:01,249 INFO L93 Difference]: Finished difference Result 1206 states and 1982 transitions. [2025-01-09 03:44:01,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:44:01,249 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 89 [2025-01-09 03:44:01,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:01,256 INFO L225 Difference]: With dead ends: 1206 [2025-01-09 03:44:01,257 INFO L226 Difference]: Without dead ends: 612 [2025-01-09 03:44:01,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:44:01,260 INFO L435 NwaCegarLoop]: 979 mSDtfsCounter, 11 mSDsluCounter, 1952 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2931 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:01,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2931 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:44:01,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2025-01-09 03:44:01,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2025-01-09 03:44:01,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 475 states have (on average 1.6631578947368422) internal successors, (790), 496 states have internal predecessors, (790), 108 states have call successors, (108), 29 states have call predecessors, (108), 28 states have return successors, (103), 100 states have call predecessors, (103), 103 states have call successors, (103) [2025-01-09 03:44:01,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 1001 transitions. [2025-01-09 03:44:01,287 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 1001 transitions. Word has length 89 [2025-01-09 03:44:01,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:01,288 INFO L471 AbstractCegarLoop]: Abstraction has 612 states and 1001 transitions. [2025-01-09 03:44:01,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 03:44:01,288 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 1001 transitions. [2025-01-09 03:44:01,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2025-01-09 03:44:01,293 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:01,293 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:01,303 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-09 03:44:01,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:01,494 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:01,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:01,494 INFO L85 PathProgramCache]: Analyzing trace with hash 802687428, now seen corresponding path program 1 times [2025-01-09 03:44:01,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:01,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886388103] [2025-01-09 03:44:01,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:01,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:01,510 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-01-09 03:44:01,520 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-01-09 03:44:01,520 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:01,520 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:01,630 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-09 03:44:01,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:01,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886388103] [2025-01-09 03:44:01,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886388103] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:01,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223883056] [2025-01-09 03:44:01,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:01,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:01,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:01,633 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 03:44:01,635 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 03:44:01,805 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 90 statements into 1 equivalence classes. [2025-01-09 03:44:01,982 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 90 of 90 statements. [2025-01-09 03:44:01,982 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:01,982 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:01,989 INFO L256 TraceCheckSpWp]: Trace formula consists of 1731 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:44:01,992 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:02,020 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 03:44:02,020 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:02,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223883056] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:02,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:02,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:44:02,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569148292] [2025-01-09 03:44:02,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:02,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:02,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:02,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:02,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:44:02,026 INFO L87 Difference]: Start difference. First operand 612 states and 1001 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 03:44:02,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:02,095 INFO L93 Difference]: Finished difference Result 1206 states and 1981 transitions. [2025-01-09 03:44:02,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:44:02,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 90 [2025-01-09 03:44:02,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:02,101 INFO L225 Difference]: With dead ends: 1206 [2025-01-09 03:44:02,101 INFO L226 Difference]: Without dead ends: 612 [2025-01-09 03:44:02,104 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:44:02,104 INFO L435 NwaCegarLoop]: 979 mSDtfsCounter, 10 mSDsluCounter, 1952 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2931 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:02,105 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2931 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:44:02,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2025-01-09 03:44:02,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2025-01-09 03:44:02,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 612 states, 475 states have (on average 1.6610526315789473) internal successors, (789), 496 states have internal predecessors, (789), 108 states have call successors, (108), 29 states have call predecessors, (108), 28 states have return successors, (103), 100 states have call predecessors, (103), 103 states have call successors, (103) [2025-01-09 03:44:02,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 1000 transitions. [2025-01-09 03:44:02,127 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 1000 transitions. Word has length 90 [2025-01-09 03:44:02,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:02,127 INFO L471 AbstractCegarLoop]: Abstraction has 612 states and 1000 transitions. [2025-01-09 03:44:02,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 03:44:02,128 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 1000 transitions. [2025-01-09 03:44:02,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-01-09 03:44:02,129 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:02,129 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:02,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-09 03:44:02,330 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2025-01-09 03:44:02,330 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:02,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:02,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1529244507, now seen corresponding path program 1 times [2025-01-09 03:44:02,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:02,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382777718] [2025-01-09 03:44:02,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:02,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:02,345 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-01-09 03:44:02,352 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-01-09 03:44:02,353 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:02,353 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:02,563 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-09 03:44:02,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:02,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382777718] [2025-01-09 03:44:02,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382777718] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:02,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947375238] [2025-01-09 03:44:02,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:02,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:02,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:02,566 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 03:44:02,568 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 03:44:02,699 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-01-09 03:44:02,905 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-01-09 03:44:02,905 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:02,905 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:02,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 1732 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 03:44:02,917 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:02,996 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 03:44:02,996 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:02,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947375238] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:02,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:02,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2025-01-09 03:44:02,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815693070] [2025-01-09 03:44:02,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:02,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:44:02,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:02,998 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:44:03,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2025-01-09 03:44:03,002 INFO L87 Difference]: Start difference. First operand 612 states and 1000 transitions. Second operand has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2025-01-09 03:44:03,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:03,120 INFO L93 Difference]: Finished difference Result 1225 states and 2011 transitions. [2025-01-09 03:44:03,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:44:03,121 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 91 [2025-01-09 03:44:03,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:03,126 INFO L225 Difference]: With dead ends: 1225 [2025-01-09 03:44:03,127 INFO L226 Difference]: Without dead ends: 635 [2025-01-09 03:44:03,129 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2025-01-09 03:44:03,130 INFO L435 NwaCegarLoop]: 980 mSDtfsCounter, 100 mSDsluCounter, 4814 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 5794 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:03,131 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 5794 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:44:03,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2025-01-09 03:44:03,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 631. [2025-01-09 03:44:03,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 491 states have (on average 1.659877800407332) internal successors, (815), 514 states have internal predecessors, (815), 109 states have call successors, (109), 29 states have call predecessors, (109), 30 states have return successors, (107), 101 states have call predecessors, (107), 104 states have call successors, (107) [2025-01-09 03:44:03,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 1031 transitions. [2025-01-09 03:44:03,163 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 1031 transitions. Word has length 91 [2025-01-09 03:44:03,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:03,163 INFO L471 AbstractCegarLoop]: Abstraction has 631 states and 1031 transitions. [2025-01-09 03:44:03,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2025-01-09 03:44:03,164 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 1031 transitions. [2025-01-09 03:44:03,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2025-01-09 03:44:03,167 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:03,167 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:03,177 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 03:44:03,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:03,372 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:03,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:03,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1972855930, now seen corresponding path program 1 times [2025-01-09 03:44:03,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:03,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949628601] [2025-01-09 03:44:03,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:03,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:03,389 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-01-09 03:44:03,394 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-01-09 03:44:03,395 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:03,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:03,462 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-09 03:44:03,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:03,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949628601] [2025-01-09 03:44:03,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949628601] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:03,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402484629] [2025-01-09 03:44:03,462 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:03,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:03,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:03,466 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 03:44:03,468 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 03:44:03,609 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 91 statements into 1 equivalence classes. [2025-01-09 03:44:03,785 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 91 of 91 statements. [2025-01-09 03:44:03,785 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:03,785 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:03,793 INFO L256 TraceCheckSpWp]: Trace formula consists of 1731 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:44:03,797 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:03,828 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 03:44:03,829 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:03,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402484629] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:03,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:03,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:44:03,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978819563] [2025-01-09 03:44:03,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:03,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:03,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:03,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:03,830 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:44:03,830 INFO L87 Difference]: Start difference. First operand 631 states and 1031 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, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 03:44:03,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:03,985 INFO L93 Difference]: Finished difference Result 1281 states and 2112 transitions. [2025-01-09 03:44:03,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:44:03,986 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, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 91 [2025-01-09 03:44:03,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:03,992 INFO L225 Difference]: With dead ends: 1281 [2025-01-09 03:44:03,992 INFO L226 Difference]: Without dead ends: 646 [2025-01-09 03:44:03,996 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:44:03,996 INFO L435 NwaCegarLoop]: 954 mSDtfsCounter, 76 mSDsluCounter, 1868 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 2822 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:03,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 2822 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:44:03,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2025-01-09 03:44:04,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 631. [2025-01-09 03:44:04,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 491 states have (on average 1.64969450101833) internal successors, (810), 514 states have internal predecessors, (810), 109 states have call successors, (109), 29 states have call predecessors, (109), 30 states have return successors, (107), 101 states have call predecessors, (107), 104 states have call successors, (107) [2025-01-09 03:44:04,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 1026 transitions. [2025-01-09 03:44:04,025 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 1026 transitions. Word has length 91 [2025-01-09 03:44:04,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:04,025 INFO L471 AbstractCegarLoop]: Abstraction has 631 states and 1026 transitions. [2025-01-09 03:44:04,026 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, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 03:44:04,028 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 1026 transitions. [2025-01-09 03:44:04,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2025-01-09 03:44:04,029 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:04,029 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:04,040 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 03:44:04,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:04,234 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:04,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:04,234 INFO L85 PathProgramCache]: Analyzing trace with hash 876053258, now seen corresponding path program 1 times [2025-01-09 03:44:04,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:04,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53732645] [2025-01-09 03:44:04,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:04,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:04,250 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-01-09 03:44:04,256 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-01-09 03:44:04,256 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:04,257 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:04,360 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2025-01-09 03:44:04,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:04,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53732645] [2025-01-09 03:44:04,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53732645] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:04,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641251952] [2025-01-09 03:44:04,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:04,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:04,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:04,363 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 03:44:04,365 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 03:44:04,512 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 93 statements into 1 equivalence classes. [2025-01-09 03:44:04,698 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 93 of 93 statements. [2025-01-09 03:44:04,698 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:04,698 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:04,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 1733 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:44:04,714 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:04,751 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 03:44:04,751 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:04,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641251952] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:04,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:04,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:44:04,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252396902] [2025-01-09 03:44:04,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:04,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:04,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:04,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:04,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:44:04,755 INFO L87 Difference]: Start difference. First operand 631 states and 1026 transitions. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 03:44:04,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:04,896 INFO L93 Difference]: Finished difference Result 1281 states and 2102 transitions. [2025-01-09 03:44:04,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:44:04,896 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 93 [2025-01-09 03:44:04,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:04,904 INFO L225 Difference]: With dead ends: 1281 [2025-01-09 03:44:04,904 INFO L226 Difference]: Without dead ends: 646 [2025-01-09 03:44:04,908 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:44:04,908 INFO L435 NwaCegarLoop]: 954 mSDtfsCounter, 75 mSDsluCounter, 1868 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 2822 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:04,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 2822 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:44:04,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2025-01-09 03:44:04,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 631. [2025-01-09 03:44:04,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 631 states, 491 states have (on average 1.6395112016293278) internal successors, (805), 514 states have internal predecessors, (805), 109 states have call successors, (109), 29 states have call predecessors, (109), 30 states have return successors, (107), 101 states have call predecessors, (107), 104 states have call successors, (107) [2025-01-09 03:44:04,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 1021 transitions. [2025-01-09 03:44:04,943 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 1021 transitions. Word has length 93 [2025-01-09 03:44:04,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:04,944 INFO L471 AbstractCegarLoop]: Abstraction has 631 states and 1021 transitions. [2025-01-09 03:44:04,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 03:44:04,944 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 1021 transitions. [2025-01-09 03:44:04,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2025-01-09 03:44:04,946 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:04,946 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:04,958 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-01-09 03:44:05,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:05,148 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:05,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:05,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1018599386, now seen corresponding path program 1 times [2025-01-09 03:44:05,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:05,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060201412] [2025-01-09 03:44:05,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:05,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:05,167 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-01-09 03:44:05,174 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-01-09 03:44:05,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:05,175 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:05,248 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-09 03:44:05,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:05,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060201412] [2025-01-09 03:44:05,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060201412] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:05,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233755638] [2025-01-09 03:44:05,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:05,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:05,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:05,253 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 03:44:05,255 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 03:44:05,405 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 95 statements into 1 equivalence classes. [2025-01-09 03:44:05,594 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 95 of 95 statements. [2025-01-09 03:44:05,595 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:05,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:05,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 1735 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:44:05,608 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:05,639 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 03:44:05,642 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:05,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233755638] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:05,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:05,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:44:05,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185305088] [2025-01-09 03:44:05,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:05,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:05,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:05,644 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:05,644 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:44:05,644 INFO L87 Difference]: Start difference. First operand 631 states and 1021 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 03:44:05,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:05,854 INFO L93 Difference]: Finished difference Result 1332 states and 2174 transitions. [2025-01-09 03:44:05,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:44:05,855 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 95 [2025-01-09 03:44:05,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:05,862 INFO L225 Difference]: With dead ends: 1332 [2025-01-09 03:44:05,862 INFO L226 Difference]: Without dead ends: 727 [2025-01-09 03:44:05,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 94 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 03:44:05,866 INFO L435 NwaCegarLoop]: 987 mSDtfsCounter, 130 mSDsluCounter, 1866 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 2853 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:05,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 2853 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:44:05,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2025-01-09 03:44:05,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 682. [2025-01-09 03:44:05,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 541 states have (on average 1.645101663585952) internal successors, (890), 564 states have internal predecessors, (890), 109 states have call successors, (109), 30 states have call predecessors, (109), 31 states have return successors, (106), 101 states have call predecessors, (106), 104 states have call successors, (106) [2025-01-09 03:44:05,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1105 transitions. [2025-01-09 03:44:05,894 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1105 transitions. Word has length 95 [2025-01-09 03:44:05,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:05,895 INFO L471 AbstractCegarLoop]: Abstraction has 682 states and 1105 transitions. [2025-01-09 03:44:05,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 03:44:05,895 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1105 transitions. [2025-01-09 03:44:05,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-01-09 03:44:05,898 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:05,898 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:05,908 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 03:44:06,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-01-09 03:44:06,099 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:06,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:06,099 INFO L85 PathProgramCache]: Analyzing trace with hash 1036686702, now seen corresponding path program 1 times [2025-01-09 03:44:06,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:06,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485384025] [2025-01-09 03:44:06,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:06,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:06,118 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-01-09 03:44:06,126 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-01-09 03:44:06,127 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:06,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:06,270 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-09 03:44:06,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:06,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485384025] [2025-01-09 03:44:06,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485384025] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:06,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229206570] [2025-01-09 03:44:06,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:06,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:06,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:06,273 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 03:44:06,276 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 03:44:06,422 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-01-09 03:44:06,591 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-01-09 03:44:06,592 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:06,592 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:06,600 INFO L256 TraceCheckSpWp]: Trace formula consists of 1733 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 03:44:06,603 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:06,675 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 03:44:06,675 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:06,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229206570] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:06,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:06,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-01-09 03:44:06,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940841268] [2025-01-09 03:44:06,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:06,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:44:06,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:06,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:44:06,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:44:06,677 INFO L87 Difference]: Start difference. First operand 682 states and 1105 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2025-01-09 03:44:06,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:06,835 INFO L93 Difference]: Finished difference Result 1294 states and 2103 transitions. [2025-01-09 03:44:06,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 03:44:06,836 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 96 [2025-01-09 03:44:06,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:06,842 INFO L225 Difference]: With dead ends: 1294 [2025-01-09 03:44:06,843 INFO L226 Difference]: Without dead ends: 704 [2025-01-09 03:44:06,846 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2025-01-09 03:44:06,847 INFO L435 NwaCegarLoop]: 960 mSDtfsCounter, 113 mSDsluCounter, 5671 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 6631 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:06,847 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 6631 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:44:06,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 704 states. [2025-01-09 03:44:06,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 704 to 682. [2025-01-09 03:44:06,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 541 states have (on average 1.645101663585952) internal successors, (890), 564 states have internal predecessors, (890), 109 states have call successors, (109), 30 states have call predecessors, (109), 31 states have return successors, (106), 101 states have call predecessors, (106), 104 states have call successors, (106) [2025-01-09 03:44:06,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1105 transitions. [2025-01-09 03:44:06,872 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1105 transitions. Word has length 96 [2025-01-09 03:44:06,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:06,872 INFO L471 AbstractCegarLoop]: Abstraction has 682 states and 1105 transitions. [2025-01-09 03:44:06,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2025-01-09 03:44:06,873 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1105 transitions. [2025-01-09 03:44:06,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-01-09 03:44:06,874 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:06,874 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:06,884 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 03:44:07,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-01-09 03:44:07,075 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:07,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:07,076 INFO L85 PathProgramCache]: Analyzing trace with hash -596753330, now seen corresponding path program 1 times [2025-01-09 03:44:07,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:07,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794879035] [2025-01-09 03:44:07,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:07,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:07,090 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-01-09 03:44:07,096 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-01-09 03:44:07,096 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:07,096 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:07,173 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-09 03:44:07,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:07,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794879035] [2025-01-09 03:44:07,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794879035] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:07,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370927575] [2025-01-09 03:44:07,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:07,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:07,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:07,176 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 03:44:07,179 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 03:44:07,330 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-01-09 03:44:07,543 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-01-09 03:44:07,543 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:07,543 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:07,551 INFO L256 TraceCheckSpWp]: Trace formula consists of 1736 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:44:07,554 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:07,584 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 03:44:07,585 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:07,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370927575] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:07,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:07,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:44:07,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522445863] [2025-01-09 03:44:07,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:07,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:07,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:07,587 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:07,587 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:44:07,587 INFO L87 Difference]: Start difference. First operand 682 states and 1105 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 03:44:07,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:07,771 INFO L93 Difference]: Finished difference Result 1335 states and 2175 transitions. [2025-01-09 03:44:07,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:44:07,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 96 [2025-01-09 03:44:07,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:07,778 INFO L225 Difference]: With dead ends: 1335 [2025-01-09 03:44:07,778 INFO L226 Difference]: Without dead ends: 715 [2025-01-09 03:44:07,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 95 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 03:44:07,782 INFO L435 NwaCegarLoop]: 986 mSDtfsCounter, 124 mSDsluCounter, 1840 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 2826 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:07,782 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 2826 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:44:07,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2025-01-09 03:44:07,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 682. [2025-01-09 03:44:07,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 682 states, 541 states have (on average 1.6358595194085028) internal successors, (885), 564 states have internal predecessors, (885), 109 states have call successors, (109), 30 states have call predecessors, (109), 31 states have return successors, (106), 101 states have call predecessors, (106), 104 states have call successors, (106) [2025-01-09 03:44:07,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 682 states to 682 states and 1100 transitions. [2025-01-09 03:44:07,808 INFO L78 Accepts]: Start accepts. Automaton has 682 states and 1100 transitions. Word has length 96 [2025-01-09 03:44:07,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:07,809 INFO L471 AbstractCegarLoop]: Abstraction has 682 states and 1100 transitions. [2025-01-09 03:44:07,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 03:44:07,809 INFO L276 IsEmpty]: Start isEmpty. Operand 682 states and 1100 transitions. [2025-01-09 03:44:07,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2025-01-09 03:44:07,811 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:07,811 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:07,821 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 03:44:08,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:08,016 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:08,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:08,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1156806575, now seen corresponding path program 1 times [2025-01-09 03:44:08,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:08,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938660599] [2025-01-09 03:44:08,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:08,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:08,035 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-01-09 03:44:08,041 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-01-09 03:44:08,041 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:08,041 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:08,114 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 03:44:08,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:08,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938660599] [2025-01-09 03:44:08,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938660599] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:08,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1750688853] [2025-01-09 03:44:08,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:08,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:08,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:08,117 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 03:44:08,120 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 03:44:08,272 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 96 statements into 1 equivalence classes. [2025-01-09 03:44:08,455 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 96 of 96 statements. [2025-01-09 03:44:08,455 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:08,455 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:08,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 1732 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 03:44:08,472 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:08,532 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-09 03:44:08,534 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:08,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1750688853] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:08,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:08,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2025-01-09 03:44:08,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290833211] [2025-01-09 03:44:08,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:08,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:44:08,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:08,537 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:44:08,537 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:44:08,538 INFO L87 Difference]: Start difference. First operand 682 states and 1100 transitions. Second operand has 7 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-01-09 03:44:08,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:08,637 INFO L93 Difference]: Finished difference Result 1229 states and 1995 transitions. [2025-01-09 03:44:08,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:44:08,638 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 96 [2025-01-09 03:44:08,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:08,645 INFO L225 Difference]: With dead ends: 1229 [2025-01-09 03:44:08,646 INFO L226 Difference]: Without dead ends: 706 [2025-01-09 03:44:08,649 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:44:08,650 INFO L435 NwaCegarLoop]: 973 mSDtfsCounter, 86 mSDsluCounter, 4786 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 5759 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:08,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 5759 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:44:08,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2025-01-09 03:44:08,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 701. [2025-01-09 03:44:08,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 557 states have (on average 1.6355475763016158) internal successors, (911), 582 states have internal predecessors, (911), 110 states have call successors, (110), 30 states have call predecessors, (110), 33 states have return successors, (109), 102 states have call predecessors, (109), 105 states have call successors, (109) [2025-01-09 03:44:08,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 1130 transitions. [2025-01-09 03:44:08,680 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 1130 transitions. Word has length 96 [2025-01-09 03:44:08,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:08,680 INFO L471 AbstractCegarLoop]: Abstraction has 701 states and 1130 transitions. [2025-01-09 03:44:08,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-01-09 03:44:08,681 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 1130 transitions. [2025-01-09 03:44:08,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-01-09 03:44:08,682 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:08,683 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:08,693 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 03:44:08,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:08,884 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:08,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:08,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1852689026, now seen corresponding path program 1 times [2025-01-09 03:44:08,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:08,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765652184] [2025-01-09 03:44:08,885 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:08,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:08,899 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-01-09 03:44:08,905 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-01-09 03:44:08,905 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:08,905 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:08,969 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-01-09 03:44:08,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:08,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765652184] [2025-01-09 03:44:08,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765652184] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:08,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [466750117] [2025-01-09 03:44:08,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:08,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:08,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:08,973 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 03:44:08,975 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 03:44:09,119 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-01-09 03:44:09,311 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-01-09 03:44:09,311 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:09,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:09,319 INFO L256 TraceCheckSpWp]: Trace formula consists of 1733 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 03:44:09,323 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:09,385 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-09 03:44:09,388 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:09,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [466750117] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:09,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:09,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2025-01-09 03:44:09,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051542609] [2025-01-09 03:44:09,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:09,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:44:09,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:09,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:44:09,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:44:09,391 INFO L87 Difference]: Start difference. First operand 701 states and 1130 transitions. Second operand has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-01-09 03:44:09,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:09,482 INFO L93 Difference]: Finished difference Result 1259 states and 2046 transitions. [2025-01-09 03:44:09,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:44:09,483 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 97 [2025-01-09 03:44:09,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:09,489 INFO L225 Difference]: With dead ends: 1259 [2025-01-09 03:44:09,489 INFO L226 Difference]: Without dead ends: 736 [2025-01-09 03:44:09,492 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:44:09,492 INFO L435 NwaCegarLoop]: 973 mSDtfsCounter, 95 mSDsluCounter, 4776 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 5749 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:09,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 5749 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:44:09,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2025-01-09 03:44:09,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 701. [2025-01-09 03:44:09,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 557 states have (on average 1.6355475763016158) internal successors, (911), 582 states have internal predecessors, (911), 110 states have call successors, (110), 30 states have call predecessors, (110), 33 states have return successors, (109), 102 states have call predecessors, (109), 105 states have call successors, (109) [2025-01-09 03:44:09,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 1130 transitions. [2025-01-09 03:44:09,521 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 1130 transitions. Word has length 97 [2025-01-09 03:44:09,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:09,521 INFO L471 AbstractCegarLoop]: Abstraction has 701 states and 1130 transitions. [2025-01-09 03:44:09,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-01-09 03:44:09,522 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 1130 transitions. [2025-01-09 03:44:09,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-01-09 03:44:09,523 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:09,523 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:09,533 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 03:44:09,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2025-01-09 03:44:09,725 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:09,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:09,725 INFO L85 PathProgramCache]: Analyzing trace with hash -334403330, now seen corresponding path program 1 times [2025-01-09 03:44:09,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:09,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924486523] [2025-01-09 03:44:09,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:09,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:09,739 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-01-09 03:44:09,744 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-01-09 03:44:09,745 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:09,745 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:09,803 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-01-09 03:44:09,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:09,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924486523] [2025-01-09 03:44:09,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924486523] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:09,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391484259] [2025-01-09 03:44:09,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:09,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:09,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:09,806 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 03:44:09,808 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 03:44:09,945 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-01-09 03:44:10,121 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-01-09 03:44:10,121 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:10,121 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:10,129 INFO L256 TraceCheckSpWp]: Trace formula consists of 1729 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 03:44:10,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:10,201 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-09 03:44:10,202 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:10,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391484259] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:10,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:10,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4] total 10 [2025-01-09 03:44:10,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829920454] [2025-01-09 03:44:10,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:10,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:44:10,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:10,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:44:10,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:44:10,204 INFO L87 Difference]: Start difference. First operand 701 states and 1130 transitions. Second operand has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-01-09 03:44:10,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:10,342 INFO L93 Difference]: Finished difference Result 1244 states and 2020 transitions. [2025-01-09 03:44:10,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 03:44:10,342 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 97 [2025-01-09 03:44:10,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:10,348 INFO L225 Difference]: With dead ends: 1244 [2025-01-09 03:44:10,348 INFO L226 Difference]: Without dead ends: 721 [2025-01-09 03:44:10,352 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:44:10,352 INFO L435 NwaCegarLoop]: 962 mSDtfsCounter, 113 mSDsluCounter, 5677 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 6639 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:10,353 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 6639 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:44:10,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2025-01-09 03:44:10,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 701. [2025-01-09 03:44:10,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 557 states have (on average 1.6355475763016158) internal successors, (911), 582 states have internal predecessors, (911), 110 states have call successors, (110), 30 states have call predecessors, (110), 33 states have return successors, (109), 102 states have call predecessors, (109), 105 states have call successors, (109) [2025-01-09 03:44:10,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 1130 transitions. [2025-01-09 03:44:10,383 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 1130 transitions. Word has length 97 [2025-01-09 03:44:10,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:10,383 INFO L471 AbstractCegarLoop]: Abstraction has 701 states and 1130 transitions. [2025-01-09 03:44:10,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.428571428571429) internal successors, (73), 7 states have internal predecessors, (73), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-01-09 03:44:10,383 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 1130 transitions. [2025-01-09 03:44:10,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-01-09 03:44:10,385 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:10,385 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:10,395 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-01-09 03:44:10,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-01-09 03:44:10,586 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:10,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:10,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1158743682, now seen corresponding path program 1 times [2025-01-09 03:44:10,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:10,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790839399] [2025-01-09 03:44:10,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:10,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:10,600 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-01-09 03:44:10,605 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-01-09 03:44:10,606 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:10,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:10,666 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 03:44:10,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:10,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790839399] [2025-01-09 03:44:10,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790839399] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:10,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699243714] [2025-01-09 03:44:10,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:10,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:10,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:10,669 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:44:10,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-01-09 03:44:10,824 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-01-09 03:44:10,964 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-01-09 03:44:10,964 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:10,964 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:10,969 INFO L256 TraceCheckSpWp]: Trace formula consists of 1733 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:44:10,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:10,992 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-09 03:44:10,992 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:10,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699243714] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:10,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:10,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:44:10,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257485166] [2025-01-09 03:44:10,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:10,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:10,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:10,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:10,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:44:10,994 INFO L87 Difference]: Start difference. First operand 701 states and 1130 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 03:44:11,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:11,043 INFO L93 Difference]: Finished difference Result 1296 states and 2105 transitions. [2025-01-09 03:44:11,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:44:11,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 97 [2025-01-09 03:44:11,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:11,048 INFO L225 Difference]: With dead ends: 1296 [2025-01-09 03:44:11,048 INFO L226 Difference]: Without dead ends: 701 [2025-01-09 03:44:11,050 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:44:11,051 INFO L435 NwaCegarLoop]: 968 mSDtfsCounter, 13 mSDsluCounter, 1932 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2900 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:11,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2900 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:44:11,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2025-01-09 03:44:11,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 701. [2025-01-09 03:44:11,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 557 states have (on average 1.628366247755835) internal successors, (907), 582 states have internal predecessors, (907), 110 states have call successors, (110), 30 states have call predecessors, (110), 33 states have return successors, (109), 102 states have call predecessors, (109), 105 states have call successors, (109) [2025-01-09 03:44:11,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 1126 transitions. [2025-01-09 03:44:11,076 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 1126 transitions. Word has length 97 [2025-01-09 03:44:11,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:11,078 INFO L471 AbstractCegarLoop]: Abstraction has 701 states and 1126 transitions. [2025-01-09 03:44:11,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 03:44:11,078 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 1126 transitions. [2025-01-09 03:44:11,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-01-09 03:44:11,079 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:11,079 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:11,090 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-01-09 03:44:11,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:11,280 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:11,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:11,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1803534473, now seen corresponding path program 1 times [2025-01-09 03:44:11,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:11,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378574113] [2025-01-09 03:44:11,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:11,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:11,294 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-01-09 03:44:11,299 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-01-09 03:44:11,299 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:11,299 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:11,357 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-01-09 03:44:11,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:11,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378574113] [2025-01-09 03:44:11,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378574113] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:11,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [669984033] [2025-01-09 03:44:11,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:11,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:11,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:11,360 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:44:11,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-01-09 03:44:11,508 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-01-09 03:44:11,652 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-01-09 03:44:11,652 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:11,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:11,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 1730 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 03:44:11,660 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:11,680 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-09 03:44:11,680 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:11,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [669984033] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:11,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:11,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:44:11,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219320352] [2025-01-09 03:44:11,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:11,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:11,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:11,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:11,681 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:44:11,681 INFO L87 Difference]: Start difference. First operand 701 states and 1126 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, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 03:44:11,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:11,736 INFO L93 Difference]: Finished difference Result 1340 states and 2173 transitions. [2025-01-09 03:44:11,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:44:11,736 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, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 98 [2025-01-09 03:44:11,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:11,741 INFO L225 Difference]: With dead ends: 1340 [2025-01-09 03:44:11,741 INFO L226 Difference]: Without dead ends: 725 [2025-01-09 03:44:11,744 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:44:11,744 INFO L435 NwaCegarLoop]: 962 mSDtfsCounter, 7 mSDsluCounter, 1911 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2873 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:11,744 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2873 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:44:11,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2025-01-09 03:44:11,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 725. [2025-01-09 03:44:11,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 581 states have (on average 1.6092943201376937) internal successors, (935), 606 states have internal predecessors, (935), 110 states have call successors, (110), 30 states have call predecessors, (110), 33 states have return successors, (109), 102 states have call predecessors, (109), 105 states have call successors, (109) [2025-01-09 03:44:11,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 1154 transitions. [2025-01-09 03:44:11,768 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 1154 transitions. Word has length 98 [2025-01-09 03:44:11,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:11,768 INFO L471 AbstractCegarLoop]: Abstraction has 725 states and 1154 transitions. [2025-01-09 03:44:11,768 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, (11), 2 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2025-01-09 03:44:11,768 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 1154 transitions. [2025-01-09 03:44:11,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2025-01-09 03:44:11,770 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:11,770 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:11,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-01-09 03:44:11,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-01-09 03:44:11,971 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:11,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:11,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1299348696, now seen corresponding path program 1 times [2025-01-09 03:44:11,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:11,971 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911833359] [2025-01-09 03:44:11,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:11,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:11,983 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-01-09 03:44:11,990 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-01-09 03:44:11,990 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:11,991 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:12,055 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-01-09 03:44:12,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:12,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911833359] [2025-01-09 03:44:12,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911833359] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:12,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624107097] [2025-01-09 03:44:12,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:12,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:12,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:12,059 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:44:12,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-01-09 03:44:12,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-01-09 03:44:12,354 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-01-09 03:44:12,354 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:12,354 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:12,359 INFO L256 TraceCheckSpWp]: Trace formula consists of 1731 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 03:44:12,363 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:12,436 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-01-09 03:44:12,437 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:12,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624107097] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:12,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:12,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4] total 10 [2025-01-09 03:44:12,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643504836] [2025-01-09 03:44:12,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:12,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:44:12,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:12,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:44:12,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:44:12,439 INFO L87 Difference]: Start difference. First operand 725 states and 1154 transitions. Second operand has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-01-09 03:44:12,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:12,583 INFO L93 Difference]: Finished difference Result 1274 states and 2052 transitions. [2025-01-09 03:44:12,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 03:44:12,584 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 99 [2025-01-09 03:44:12,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:12,590 INFO L225 Difference]: With dead ends: 1274 [2025-01-09 03:44:12,590 INFO L226 Difference]: Without dead ends: 751 [2025-01-09 03:44:12,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:44:12,593 INFO L435 NwaCegarLoop]: 956 mSDtfsCounter, 119 mSDsluCounter, 5639 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 6595 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:12,593 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 6595 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:44:12,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2025-01-09 03:44:12,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 725. [2025-01-09 03:44:12,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 581 states have (on average 1.6092943201376937) internal successors, (935), 606 states have internal predecessors, (935), 110 states have call successors, (110), 30 states have call predecessors, (110), 33 states have return successors, (109), 102 states have call predecessors, (109), 105 states have call successors, (109) [2025-01-09 03:44:12,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 1154 transitions. [2025-01-09 03:44:12,620 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 1154 transitions. Word has length 99 [2025-01-09 03:44:12,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:12,621 INFO L471 AbstractCegarLoop]: Abstraction has 725 states and 1154 transitions. [2025-01-09 03:44:12,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 3 states have call successors, (11), 2 states have call predecessors, (11), 4 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2025-01-09 03:44:12,621 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 1154 transitions. [2025-01-09 03:44:12,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2025-01-09 03:44:12,623 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:12,623 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:12,633 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-01-09 03:44:12,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-01-09 03:44:12,824 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:12,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:12,825 INFO L85 PathProgramCache]: Analyzing trace with hash 387493927, now seen corresponding path program 1 times [2025-01-09 03:44:12,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:12,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600118488] [2025-01-09 03:44:12,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:12,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:12,841 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-01-09 03:44:12,849 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-01-09 03:44:12,849 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:12,849 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:12,919 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2025-01-09 03:44:12,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:12,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600118488] [2025-01-09 03:44:12,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600118488] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:12,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565182053] [2025-01-09 03:44:12,920 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:12,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:12,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:12,922 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:44:12,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-01-09 03:44:13,082 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-01-09 03:44:13,242 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-01-09 03:44:13,242 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:13,242 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:13,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 1734 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 03:44:13,252 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:13,574 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 03:44:13,575 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:13,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565182053] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:13,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:13,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 9 [2025-01-09 03:44:13,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427707747] [2025-01-09 03:44:13,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:13,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:44:13,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:13,577 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:44:13,577 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:44:13,578 INFO L87 Difference]: Start difference. First operand 725 states and 1154 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2025-01-09 03:44:16,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:16,631 INFO L93 Difference]: Finished difference Result 2366 states and 3883 transitions. [2025-01-09 03:44:16,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:44:16,631 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) Word has length 99 [2025-01-09 03:44:16,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:16,646 INFO L225 Difference]: With dead ends: 2366 [2025-01-09 03:44:16,646 INFO L226 Difference]: Without dead ends: 1848 [2025-01-09 03:44:16,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:44:16,649 INFO L435 NwaCegarLoop]: 620 mSDtfsCounter, 2968 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 4061 mSolverCounterSat, 564 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3164 SdHoareTripleChecker+Valid, 1745 SdHoareTripleChecker+Invalid, 4625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 564 IncrementalHoareTripleChecker+Valid, 4061 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:16,649 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3164 Valid, 1745 Invalid, 4625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [564 Valid, 4061 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2025-01-09 03:44:16,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1848 states. [2025-01-09 03:44:16,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1848 to 1661. [2025-01-09 03:44:16,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1661 states, 1312 states have (on average 1.6448170731707317) internal successors, (2158), 1355 states have internal predecessors, (2158), 277 states have call successors, (277), 66 states have call predecessors, (277), 71 states have return successors, (286), 254 states have call predecessors, (286), 272 states have call successors, (286) [2025-01-09 03:44:16,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1661 states to 1661 states and 2721 transitions. [2025-01-09 03:44:16,731 INFO L78 Accepts]: Start accepts. Automaton has 1661 states and 2721 transitions. Word has length 99 [2025-01-09 03:44:16,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:16,731 INFO L471 AbstractCegarLoop]: Abstraction has 1661 states and 2721 transitions. [2025-01-09 03:44:16,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 6 states have internal predecessors, (63), 4 states have call successors, (11), 5 states have call predecessors, (11), 4 states have return successors, (10), 4 states have call predecessors, (10), 3 states have call successors, (10) [2025-01-09 03:44:16,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1661 states and 2721 transitions. [2025-01-09 03:44:16,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2025-01-09 03:44:16,736 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:16,736 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 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] [2025-01-09 03:44:16,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2025-01-09 03:44:16,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:16,937 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:16,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:16,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1480191572, now seen corresponding path program 1 times [2025-01-09 03:44:16,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:16,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815985329] [2025-01-09 03:44:16,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:16,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:16,955 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-01-09 03:44:16,960 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-01-09 03:44:16,960 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:16,960 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:17,115 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-01-09 03:44:17,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:17,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815985329] [2025-01-09 03:44:17,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815985329] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:17,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502715326] [2025-01-09 03:44:17,116 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:17,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:17,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:17,118 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:44:17,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-01-09 03:44:17,279 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 154 statements into 1 equivalence classes. [2025-01-09 03:44:17,493 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 154 of 154 statements. [2025-01-09 03:44:17,493 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:17,493 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:17,502 INFO L256 TraceCheckSpWp]: Trace formula consists of 2102 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 03:44:17,506 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:17,613 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-01-09 03:44:17,613 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:17,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502715326] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:17,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:17,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2025-01-09 03:44:17,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937759389] [2025-01-09 03:44:17,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:17,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:44:17,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:17,614 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:44:17,614 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:44:17,615 INFO L87 Difference]: Start difference. First operand 1661 states and 2721 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-01-09 03:44:18,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:18,048 INFO L93 Difference]: Finished difference Result 3139 states and 5257 transitions. [2025-01-09 03:44:18,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:44:18,049 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 154 [2025-01-09 03:44:18,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:18,061 INFO L225 Difference]: With dead ends: 3139 [2025-01-09 03:44:18,061 INFO L226 Difference]: Without dead ends: 1685 [2025-01-09 03:44:18,069 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:44:18,069 INFO L435 NwaCegarLoop]: 960 mSDtfsCounter, 921 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 2464 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:18,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 2464 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 03:44:18,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1685 states. [2025-01-09 03:44:18,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1685 to 1685. [2025-01-09 03:44:18,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1685 states, 1333 states have (on average 1.6459114778694675) internal successors, (2194), 1376 states have internal predecessors, (2194), 277 states have call successors, (277), 69 states have call predecessors, (277), 74 states have return successors, (289), 254 states have call predecessors, (289), 272 states have call successors, (289) [2025-01-09 03:44:18,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1685 states to 1685 states and 2760 transitions. [2025-01-09 03:44:18,160 INFO L78 Accepts]: Start accepts. Automaton has 1685 states and 2760 transitions. Word has length 154 [2025-01-09 03:44:18,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:18,160 INFO L471 AbstractCegarLoop]: Abstraction has 1685 states and 2760 transitions. [2025-01-09 03:44:18,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-01-09 03:44:18,161 INFO L276 IsEmpty]: Start isEmpty. Operand 1685 states and 2760 transitions. [2025-01-09 03:44:18,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2025-01-09 03:44:18,167 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:18,167 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 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] [2025-01-09 03:44:18,178 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2025-01-09 03:44:18,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:18,371 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:18,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:18,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1020406315, now seen corresponding path program 1 times [2025-01-09 03:44:18,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:18,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888315522] [2025-01-09 03:44:18,371 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:18,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:18,387 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-01-09 03:44:18,393 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-01-09 03:44:18,393 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:18,393 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:18,480 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-01-09 03:44:18,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:18,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888315522] [2025-01-09 03:44:18,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888315522] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:18,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888972006] [2025-01-09 03:44:18,481 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:18,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:18,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:18,483 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:44:18,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-01-09 03:44:18,698 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-01-09 03:44:18,893 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-01-09 03:44:18,893 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:18,893 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:18,899 INFO L256 TraceCheckSpWp]: Trace formula consists of 2104 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-09 03:44:18,903 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:19,039 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2025-01-09 03:44:19,039 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:19,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888972006] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:19,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:19,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4] total 10 [2025-01-09 03:44:19,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703728863] [2025-01-09 03:44:19,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:19,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:44:19,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:19,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:44:19,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:44:19,042 INFO L87 Difference]: Start difference. First operand 1685 states and 2760 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 5 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2025-01-09 03:44:21,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:21,971 INFO L93 Difference]: Finished difference Result 4531 states and 7469 transitions. [2025-01-09 03:44:21,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-09 03:44:21,972 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 5 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) Word has length 155 [2025-01-09 03:44:21,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:21,995 INFO L225 Difference]: With dead ends: 4531 [2025-01-09 03:44:21,995 INFO L226 Difference]: Without dead ends: 2866 [2025-01-09 03:44:22,005 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2025-01-09 03:44:22,006 INFO L435 NwaCegarLoop]: 429 mSDtfsCounter, 1819 mSDsluCounter, 1702 mSDsCounter, 0 mSdLazyCounter, 5583 mSolverCounterSat, 277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1919 SdHoareTripleChecker+Valid, 2131 SdHoareTripleChecker+Invalid, 5860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 277 IncrementalHoareTripleChecker+Valid, 5583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:22,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1919 Valid, 2131 Invalid, 5860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [277 Valid, 5583 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2025-01-09 03:44:22,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2866 states. [2025-01-09 03:44:22,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2866 to 2647. [2025-01-09 03:44:22,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2647 states, 2067 states have (on average 1.6265118529269473) internal successors, (3362), 2119 states have internal predecessors, (3362), 455 states have call successors, (455), 105 states have call predecessors, (455), 124 states have return successors, (503), 433 states have call predecessors, (503), 450 states have call successors, (503) [2025-01-09 03:44:22,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2647 states to 2647 states and 4320 transitions. [2025-01-09 03:44:22,183 INFO L78 Accepts]: Start accepts. Automaton has 2647 states and 4320 transitions. Word has length 155 [2025-01-09 03:44:22,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:22,183 INFO L471 AbstractCegarLoop]: Abstraction has 2647 states and 4320 transitions. [2025-01-09 03:44:22,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 7 states have internal predecessors, (90), 5 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2025-01-09 03:44:22,184 INFO L276 IsEmpty]: Start isEmpty. Operand 2647 states and 4320 transitions. [2025-01-09 03:44:22,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-01-09 03:44:22,190 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:22,190 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 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] [2025-01-09 03:44:22,202 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-01-09 03:44:22,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2025-01-09 03:44:22,391 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:22,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:22,391 INFO L85 PathProgramCache]: Analyzing trace with hash 264985512, now seen corresponding path program 1 times [2025-01-09 03:44:22,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:22,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630517771] [2025-01-09 03:44:22,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:22,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:22,407 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-01-09 03:44:22,417 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-01-09 03:44:22,417 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:22,417 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:22,508 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-01-09 03:44:22,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:22,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630517771] [2025-01-09 03:44:22,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630517771] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:22,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524314951] [2025-01-09 03:44:22,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:22,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:22,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:22,511 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:44:22,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-01-09 03:44:22,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-01-09 03:44:22,875 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-01-09 03:44:22,875 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:22,875 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:22,881 INFO L256 TraceCheckSpWp]: Trace formula consists of 2101 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 03:44:22,885 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:23,011 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-01-09 03:44:23,011 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:23,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524314951] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:23,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:23,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2025-01-09 03:44:23,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239340872] [2025-01-09 03:44:23,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:23,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:44:23,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:23,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:44:23,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:44:23,012 INFO L87 Difference]: Start difference. First operand 2647 states and 4320 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-01-09 03:44:23,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:23,571 INFO L93 Difference]: Finished difference Result 5135 states and 8559 transitions. [2025-01-09 03:44:23,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:44:23,572 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 156 [2025-01-09 03:44:23,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:23,589 INFO L225 Difference]: With dead ends: 5135 [2025-01-09 03:44:23,589 INFO L226 Difference]: Without dead ends: 2695 [2025-01-09 03:44:23,600 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:44:23,602 INFO L435 NwaCegarLoop]: 957 mSDtfsCounter, 908 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 477 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 2461 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 477 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:23,602 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [915 Valid, 2461 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 477 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 03:44:23,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2695 states. [2025-01-09 03:44:23,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2695 to 2695. [2025-01-09 03:44:23,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2695 states, 2109 states have (on average 1.6282598387861547) internal successors, (3434), 2161 states have internal predecessors, (3434), 455 states have call successors, (455), 111 states have call predecessors, (455), 130 states have return successors, (508), 433 states have call predecessors, (508), 450 states have call successors, (508) [2025-01-09 03:44:23,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2695 states to 2695 states and 4397 transitions. [2025-01-09 03:44:23,725 INFO L78 Accepts]: Start accepts. Automaton has 2695 states and 4397 transitions. Word has length 156 [2025-01-09 03:44:23,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:23,725 INFO L471 AbstractCegarLoop]: Abstraction has 2695 states and 4397 transitions. [2025-01-09 03:44:23,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-01-09 03:44:23,726 INFO L276 IsEmpty]: Start isEmpty. Operand 2695 states and 4397 transitions. [2025-01-09 03:44:23,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2025-01-09 03:44:23,730 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:23,730 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 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] [2025-01-09 03:44:23,742 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-01-09 03:44:23,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2025-01-09 03:44:23,931 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:23,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:23,933 INFO L85 PathProgramCache]: Analyzing trace with hash 152728298, now seen corresponding path program 1 times [2025-01-09 03:44:23,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:23,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943182960] [2025-01-09 03:44:23,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:23,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:23,949 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-01-09 03:44:23,957 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-01-09 03:44:23,957 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:23,957 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:24,039 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-01-09 03:44:24,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:24,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943182960] [2025-01-09 03:44:24,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943182960] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:24,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141167735] [2025-01-09 03:44:24,039 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:24,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:24,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:24,043 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:44:24,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-01-09 03:44:24,206 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 158 statements into 1 equivalence classes. [2025-01-09 03:44:24,382 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 158 of 158 statements. [2025-01-09 03:44:24,382 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:24,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:24,388 INFO L256 TraceCheckSpWp]: Trace formula consists of 2103 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 03:44:24,392 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:24,500 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-01-09 03:44:24,500 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:24,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141167735] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:24,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:24,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2025-01-09 03:44:24,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808148545] [2025-01-09 03:44:24,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:24,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:44:24,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:24,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:44:24,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:44:24,502 INFO L87 Difference]: Start difference. First operand 2695 states and 4397 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-01-09 03:44:24,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:24,988 INFO L93 Difference]: Finished difference Result 5231 states and 8697 transitions. [2025-01-09 03:44:24,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:44:24,989 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 158 [2025-01-09 03:44:24,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:25,011 INFO L225 Difference]: With dead ends: 5231 [2025-01-09 03:44:25,011 INFO L226 Difference]: Without dead ends: 2743 [2025-01-09 03:44:25,020 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:44:25,021 INFO L435 NwaCegarLoop]: 954 mSDtfsCounter, 909 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 919 SdHoareTripleChecker+Valid, 2458 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:25,021 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [919 Valid, 2458 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 03:44:25,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2743 states. [2025-01-09 03:44:25,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2743 to 2743. [2025-01-09 03:44:25,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2743 states, 2151 states have (on average 1.6299395629939564) internal successors, (3506), 2203 states have internal predecessors, (3506), 455 states have call successors, (455), 117 states have call predecessors, (455), 136 states have return successors, (513), 433 states have call predecessors, (513), 450 states have call successors, (513) [2025-01-09 03:44:25,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2743 states to 2743 states and 4474 transitions. [2025-01-09 03:44:25,143 INFO L78 Accepts]: Start accepts. Automaton has 2743 states and 4474 transitions. Word has length 158 [2025-01-09 03:44:25,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:25,143 INFO L471 AbstractCegarLoop]: Abstraction has 2743 states and 4474 transitions. [2025-01-09 03:44:25,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-01-09 03:44:25,144 INFO L276 IsEmpty]: Start isEmpty. Operand 2743 states and 4474 transitions. [2025-01-09 03:44:25,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-01-09 03:44:25,149 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:25,149 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 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] [2025-01-09 03:44:25,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2025-01-09 03:44:25,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2025-01-09 03:44:25,350 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:25,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:25,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1838006480, now seen corresponding path program 1 times [2025-01-09 03:44:25,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:25,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960259158] [2025-01-09 03:44:25,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:25,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:25,367 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-01-09 03:44:25,373 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-01-09 03:44:25,373 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:25,373 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:25,448 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-01-09 03:44:25,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:25,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960259158] [2025-01-09 03:44:25,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960259158] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:25,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1710733227] [2025-01-09 03:44:25,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:25,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:25,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:25,451 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:44:25,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-01-09 03:44:25,619 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-01-09 03:44:25,795 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-01-09 03:44:25,795 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:25,795 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:25,801 INFO L256 TraceCheckSpWp]: Trace formula consists of 2105 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 03:44:25,807 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:25,898 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-01-09 03:44:25,898 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:25,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1710733227] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:25,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:25,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2025-01-09 03:44:25,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036906146] [2025-01-09 03:44:25,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:25,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:44:25,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:25,899 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:44:25,899 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:44:25,900 INFO L87 Difference]: Start difference. First operand 2743 states and 4474 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-01-09 03:44:26,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:26,330 INFO L93 Difference]: Finished difference Result 5327 states and 8835 transitions. [2025-01-09 03:44:26,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:44:26,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 160 [2025-01-09 03:44:26,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:26,348 INFO L225 Difference]: With dead ends: 5327 [2025-01-09 03:44:26,348 INFO L226 Difference]: Without dead ends: 2791 [2025-01-09 03:44:26,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:44:26,359 INFO L435 NwaCegarLoop]: 951 mSDtfsCounter, 887 mSDsluCounter, 1504 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 900 SdHoareTripleChecker+Valid, 2455 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:26,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [900 Valid, 2455 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 03:44:26,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2791 states. [2025-01-09 03:44:26,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2791 to 2791. [2025-01-09 03:44:26,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2791 states, 2193 states have (on average 1.6315549475604194) internal successors, (3578), 2245 states have internal predecessors, (3578), 455 states have call successors, (455), 123 states have call predecessors, (455), 142 states have return successors, (518), 433 states have call predecessors, (518), 450 states have call successors, (518) [2025-01-09 03:44:26,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2791 states to 2791 states and 4551 transitions. [2025-01-09 03:44:26,507 INFO L78 Accepts]: Start accepts. Automaton has 2791 states and 4551 transitions. Word has length 160 [2025-01-09 03:44:26,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:26,509 INFO L471 AbstractCegarLoop]: Abstraction has 2791 states and 4551 transitions. [2025-01-09 03:44:26,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-01-09 03:44:26,509 INFO L276 IsEmpty]: Start isEmpty. Operand 2791 states and 4551 transitions. [2025-01-09 03:44:26,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2025-01-09 03:44:26,514 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:26,514 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 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] [2025-01-09 03:44:26,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2025-01-09 03:44:26,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2025-01-09 03:44:26,716 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:26,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:26,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1788592022, now seen corresponding path program 1 times [2025-01-09 03:44:26,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:26,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176705882] [2025-01-09 03:44:26,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:26,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:26,732 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 162 statements into 1 equivalence classes. [2025-01-09 03:44:26,737 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 162 of 162 statements. [2025-01-09 03:44:26,737 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:26,737 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:26,821 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-01-09 03:44:26,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:26,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176705882] [2025-01-09 03:44:26,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176705882] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:26,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948463543] [2025-01-09 03:44:26,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:26,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:26,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:26,825 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:44:26,827 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-01-09 03:44:27,002 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 162 statements into 1 equivalence classes. [2025-01-09 03:44:27,205 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 162 of 162 statements. [2025-01-09 03:44:27,205 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:27,206 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:27,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 2107 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 03:44:27,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:27,402 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-01-09 03:44:27,402 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:27,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948463543] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:27,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:27,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2025-01-09 03:44:27,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901432140] [2025-01-09 03:44:27,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:27,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:44:27,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:27,404 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:44:27,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:44:27,404 INFO L87 Difference]: Start difference. First operand 2791 states and 4551 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2025-01-09 03:44:27,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:27,752 INFO L93 Difference]: Finished difference Result 2903 states and 4738 transitions. [2025-01-09 03:44:27,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:44:27,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 162 [2025-01-09 03:44:27,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:27,771 INFO L225 Difference]: With dead ends: 2903 [2025-01-09 03:44:27,771 INFO L226 Difference]: Without dead ends: 2888 [2025-01-09 03:44:27,773 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:44:27,774 INFO L435 NwaCegarLoop]: 968 mSDtfsCounter, 933 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 941 SdHoareTripleChecker+Valid, 1762 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:27,774 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [941 Valid, 1762 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 03:44:27,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2888 states. [2025-01-09 03:44:27,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2888 to 2797. [2025-01-09 03:44:27,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2797 states, 2199 states have (on average 1.629831741700773) internal successors, (3584), 2251 states have internal predecessors, (3584), 455 states have call successors, (455), 123 states have call predecessors, (455), 142 states have return successors, (518), 433 states have call predecessors, (518), 450 states have call successors, (518) [2025-01-09 03:44:27,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2797 states to 2797 states and 4557 transitions. [2025-01-09 03:44:27,911 INFO L78 Accepts]: Start accepts. Automaton has 2797 states and 4557 transitions. Word has length 162 [2025-01-09 03:44:27,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:27,912 INFO L471 AbstractCegarLoop]: Abstraction has 2797 states and 4557 transitions. [2025-01-09 03:44:27,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2025-01-09 03:44:27,913 INFO L276 IsEmpty]: Start isEmpty. Operand 2797 states and 4557 transitions. [2025-01-09 03:44:27,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2025-01-09 03:44:27,919 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:27,919 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 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] [2025-01-09 03:44:27,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2025-01-09 03:44:28,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2025-01-09 03:44:28,119 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:28,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:28,120 INFO L85 PathProgramCache]: Analyzing trace with hash 607493701, now seen corresponding path program 1 times [2025-01-09 03:44:28,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:28,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898481170] [2025-01-09 03:44:28,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:28,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:28,131 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-01-09 03:44:28,136 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-01-09 03:44:28,136 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:28,136 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:28,209 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-01-09 03:44:28,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:28,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898481170] [2025-01-09 03:44:28,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898481170] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:28,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736742566] [2025-01-09 03:44:28,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:28,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:28,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:28,212 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:44:28,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2025-01-09 03:44:28,399 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-01-09 03:44:28,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-01-09 03:44:28,595 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:28,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:28,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 2123 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 03:44:28,610 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:28,715 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-01-09 03:44:28,715 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:28,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736742566] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:28,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:28,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 8 [2025-01-09 03:44:28,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132472020] [2025-01-09 03:44:28,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:28,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 03:44:28,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:28,716 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 03:44:28,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:44:28,716 INFO L87 Difference]: Start difference. First operand 2797 states and 4557 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (19), 4 states have call predecessors, (19), 2 states have call successors, (19) [2025-01-09 03:44:29,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:29,038 INFO L93 Difference]: Finished difference Result 2997 states and 4843 transitions. [2025-01-09 03:44:29,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:44:29,040 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (19), 4 states have call predecessors, (19), 2 states have call successors, (19) Word has length 168 [2025-01-09 03:44:29,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:29,059 INFO L225 Difference]: With dead ends: 2997 [2025-01-09 03:44:29,059 INFO L226 Difference]: Without dead ends: 2982 [2025-01-09 03:44:29,061 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:44:29,062 INFO L435 NwaCegarLoop]: 975 mSDtfsCounter, 906 mSDsluCounter, 2850 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 3825 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:29,062 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [907 Valid, 3825 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 03:44:29,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2982 states. [2025-01-09 03:44:29,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2982 to 2961. [2025-01-09 03:44:29,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2961 states, 2331 states have (on average 1.6241956241956241) internal successors, (3786), 2383 states have internal predecessors, (3786), 471 states have call successors, (471), 141 states have call predecessors, (471), 158 states have return successors, (537), 447 states have call predecessors, (537), 466 states have call successors, (537) [2025-01-09 03:44:29,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2961 states to 2961 states and 4794 transitions. [2025-01-09 03:44:29,237 INFO L78 Accepts]: Start accepts. Automaton has 2961 states and 4794 transitions. Word has length 168 [2025-01-09 03:44:29,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:29,239 INFO L471 AbstractCegarLoop]: Abstraction has 2961 states and 4794 transitions. [2025-01-09 03:44:29,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 3 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (19), 4 states have call predecessors, (19), 2 states have call successors, (19) [2025-01-09 03:44:29,240 INFO L276 IsEmpty]: Start isEmpty. Operand 2961 states and 4794 transitions. [2025-01-09 03:44:29,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2025-01-09 03:44:29,245 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:29,246 INFO L218 NwaCegarLoop]: trace histogram [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, 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 03:44:29,258 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2025-01-09 03:44:29,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2025-01-09 03:44:29,448 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:29,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:29,449 INFO L85 PathProgramCache]: Analyzing trace with hash 375937115, now seen corresponding path program 1 times [2025-01-09 03:44:29,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:29,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687855626] [2025-01-09 03:44:29,449 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:29,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:29,471 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-01-09 03:44:29,478 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-01-09 03:44:29,478 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:29,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:29,578 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-01-09 03:44:29,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:29,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687855626] [2025-01-09 03:44:29,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687855626] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:29,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987001608] [2025-01-09 03:44:29,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:29,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:29,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:29,582 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:44:29,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2025-01-09 03:44:29,757 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-01-09 03:44:29,939 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-01-09 03:44:29,939 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:29,939 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:29,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 2160 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 03:44:29,950 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:29,960 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-01-09 03:44:29,960 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:29,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987001608] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:29,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:29,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2025-01-09 03:44:29,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296189187] [2025-01-09 03:44:29,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:29,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:29,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:29,962 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:29,962 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:44:29,962 INFO L87 Difference]: Start difference. First operand 2961 states and 4794 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-01-09 03:44:30,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:30,067 INFO L93 Difference]: Finished difference Result 5896 states and 9558 transitions. [2025-01-09 03:44:30,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:44:30,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) Word has length 179 [2025-01-09 03:44:30,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:30,085 INFO L225 Difference]: With dead ends: 5896 [2025-01-09 03:44:30,085 INFO L226 Difference]: Without dead ends: 2930 [2025-01-09 03:44:30,094 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:44:30,095 INFO L435 NwaCegarLoop]: 970 mSDtfsCounter, 7 mSDsluCounter, 1933 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2903 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:30,095 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2903 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:44:30,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2025-01-09 03:44:30,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 2930. [2025-01-09 03:44:30,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2930 states, 2303 states have (on average 1.6239687364307425) internal successors, (3740), 2353 states have internal predecessors, (3740), 470 states have call successors, (470), 141 states have call predecessors, (470), 156 states have return successors, (534), 446 states have call predecessors, (534), 465 states have call successors, (534) [2025-01-09 03:44:30,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2930 states to 2930 states and 4744 transitions. [2025-01-09 03:44:30,214 INFO L78 Accepts]: Start accepts. Automaton has 2930 states and 4744 transitions. Word has length 179 [2025-01-09 03:44:30,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:30,215 INFO L471 AbstractCegarLoop]: Abstraction has 2930 states and 4744 transitions. [2025-01-09 03:44:30,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 1 states have call predecessors, (20), 2 states have call successors, (20) [2025-01-09 03:44:30,215 INFO L276 IsEmpty]: Start isEmpty. Operand 2930 states and 4744 transitions. [2025-01-09 03:44:30,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2025-01-09 03:44:30,220 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:30,221 INFO L218 NwaCegarLoop]: trace histogram [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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:30,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2025-01-09 03:44:30,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-01-09 03:44:30,422 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:30,422 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:30,422 INFO L85 PathProgramCache]: Analyzing trace with hash 266390438, now seen corresponding path program 1 times [2025-01-09 03:44:30,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:30,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319533120] [2025-01-09 03:44:30,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:30,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:30,440 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 181 statements into 1 equivalence classes. [2025-01-09 03:44:30,447 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 181 of 181 statements. [2025-01-09 03:44:30,447 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:30,447 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:30,627 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-01-09 03:44:30,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:30,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319533120] [2025-01-09 03:44:30,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319533120] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:30,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105733254] [2025-01-09 03:44:30,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:30,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:30,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:30,630 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:44:30,632 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2025-01-09 03:44:30,884 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 181 statements into 1 equivalence classes. [2025-01-09 03:44:31,067 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 181 of 181 statements. [2025-01-09 03:44:31,067 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:31,067 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:31,073 INFO L256 TraceCheckSpWp]: Trace formula consists of 2163 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-09 03:44:31,078 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:31,107 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-01-09 03:44:31,108 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:31,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105733254] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:31,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:31,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 7 [2025-01-09 03:44:31,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805895687] [2025-01-09 03:44:31,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:31,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:44:31,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:31,110 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:44:31,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:44:31,110 INFO L87 Difference]: Start difference. First operand 2930 states and 4744 transitions. Second operand has 7 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2025-01-09 03:44:31,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:31,281 INFO L93 Difference]: Finished difference Result 5829 states and 9452 transitions. [2025-01-09 03:44:31,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:44:31,282 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) Word has length 181 [2025-01-09 03:44:31,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:31,298 INFO L225 Difference]: With dead ends: 5829 [2025-01-09 03:44:31,298 INFO L226 Difference]: Without dead ends: 2930 [2025-01-09 03:44:31,306 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 182 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 03:44:31,307 INFO L435 NwaCegarLoop]: 988 mSDtfsCounter, 119 mSDsluCounter, 4814 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 5802 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:31,307 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 5802 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:44:31,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2930 states. [2025-01-09 03:44:31,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2930 to 2909. [2025-01-09 03:44:31,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2909 states, 2282 states have (on average 1.624014022787029) internal successors, (3706), 2332 states have internal predecessors, (3706), 470 states have call successors, (470), 141 states have call predecessors, (470), 156 states have return successors, (534), 446 states have call predecessors, (534), 465 states have call successors, (534) [2025-01-09 03:44:31,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2909 states to 2909 states and 4710 transitions. [2025-01-09 03:44:31,420 INFO L78 Accepts]: Start accepts. Automaton has 2909 states and 4710 transitions. Word has length 181 [2025-01-09 03:44:31,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:31,420 INFO L471 AbstractCegarLoop]: Abstraction has 2909 states and 4710 transitions. [2025-01-09 03:44:31,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 20.333333333333332) internal successors, (122), 6 states have internal predecessors, (122), 3 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 3 states have call successors, (20) [2025-01-09 03:44:31,421 INFO L276 IsEmpty]: Start isEmpty. Operand 2909 states and 4710 transitions. [2025-01-09 03:44:31,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2025-01-09 03:44:31,426 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:31,426 INFO L218 NwaCegarLoop]: trace histogram [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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:31,439 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2025-01-09 03:44:31,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2025-01-09 03:44:31,627 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:31,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:31,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1449326143, now seen corresponding path program 1 times [2025-01-09 03:44:31,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:31,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782057296] [2025-01-09 03:44:31,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:31,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:31,646 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 183 statements into 1 equivalence classes. [2025-01-09 03:44:31,678 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 183 of 183 statements. [2025-01-09 03:44:31,678 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:31,679 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:31,796 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-01-09 03:44:31,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:31,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782057296] [2025-01-09 03:44:31,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782057296] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:31,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465499601] [2025-01-09 03:44:31,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:31,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:31,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:31,801 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:44:31,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2025-01-09 03:44:31,988 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 183 statements into 1 equivalence classes. [2025-01-09 03:44:32,172 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 183 of 183 statements. [2025-01-09 03:44:32,173 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:32,173 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:32,179 INFO L256 TraceCheckSpWp]: Trace formula consists of 2169 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:44:32,182 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:32,208 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-01-09 03:44:32,208 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:32,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465499601] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:32,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:32,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2025-01-09 03:44:32,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899210374] [2025-01-09 03:44:32,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:32,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:32,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:32,210 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:32,210 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:44:32,210 INFO L87 Difference]: Start difference. First operand 2909 states and 4710 transitions. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-01-09 03:44:32,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:32,367 INFO L93 Difference]: Finished difference Result 5811 states and 9422 transitions. [2025-01-09 03:44:32,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:44:32,368 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 183 [2025-01-09 03:44:32,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:32,382 INFO L225 Difference]: With dead ends: 5811 [2025-01-09 03:44:32,382 INFO L226 Difference]: Without dead ends: 2933 [2025-01-09 03:44:32,394 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:44:32,395 INFO L435 NwaCegarLoop]: 953 mSDtfsCounter, 128 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 2782 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:32,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 2782 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:44:32,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2025-01-09 03:44:32,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 2909. [2025-01-09 03:44:32,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2909 states, 2282 states have (on average 1.623575810692375) internal successors, (3705), 2332 states have internal predecessors, (3705), 470 states have call successors, (470), 141 states have call predecessors, (470), 156 states have return successors, (534), 446 states have call predecessors, (534), 465 states have call successors, (534) [2025-01-09 03:44:32,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2909 states to 2909 states and 4709 transitions. [2025-01-09 03:44:32,550 INFO L78 Accepts]: Start accepts. Automaton has 2909 states and 4709 transitions. Word has length 183 [2025-01-09 03:44:32,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:32,551 INFO L471 AbstractCegarLoop]: Abstraction has 2909 states and 4709 transitions. [2025-01-09 03:44:32,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-01-09 03:44:32,551 INFO L276 IsEmpty]: Start isEmpty. Operand 2909 states and 4709 transitions. [2025-01-09 03:44:32,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2025-01-09 03:44:32,556 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:32,556 INFO L218 NwaCegarLoop]: trace histogram [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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:32,568 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2025-01-09 03:44:32,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2025-01-09 03:44:32,757 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:32,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:32,759 INFO L85 PathProgramCache]: Analyzing trace with hash 1137998447, now seen corresponding path program 1 times [2025-01-09 03:44:32,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:32,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147492229] [2025-01-09 03:44:32,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:32,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:32,775 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-01-09 03:44:32,785 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-01-09 03:44:32,785 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:32,785 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:32,904 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-01-09 03:44:32,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:32,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147492229] [2025-01-09 03:44:32,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147492229] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:32,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926293695] [2025-01-09 03:44:32,905 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:32,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:32,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:32,908 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:44:32,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2025-01-09 03:44:33,101 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-01-09 03:44:33,313 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-01-09 03:44:33,313 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:33,313 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:33,321 INFO L256 TraceCheckSpWp]: Trace formula consists of 2167 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 03:44:33,324 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:33,351 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-01-09 03:44:33,351 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:33,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926293695] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:33,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:33,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2025-01-09 03:44:33,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298571149] [2025-01-09 03:44:33,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:33,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:33,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:33,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:33,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:44:33,354 INFO L87 Difference]: Start difference. First operand 2909 states and 4709 transitions. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-01-09 03:44:33,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:33,504 INFO L93 Difference]: Finished difference Result 5811 states and 9425 transitions. [2025-01-09 03:44:33,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:44:33,504 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 184 [2025-01-09 03:44:33,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:33,521 INFO L225 Difference]: With dead ends: 5811 [2025-01-09 03:44:33,521 INFO L226 Difference]: Without dead ends: 2933 [2025-01-09 03:44:33,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:44:33,532 INFO L435 NwaCegarLoop]: 953 mSDtfsCounter, 122 mSDsluCounter, 1829 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 2782 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:33,533 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 2782 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:44:33,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2025-01-09 03:44:33,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 2909. [2025-01-09 03:44:33,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2909 states, 2282 states have (on average 1.6209465381244523) internal successors, (3699), 2332 states have internal predecessors, (3699), 470 states have call successors, (470), 141 states have call predecessors, (470), 156 states have return successors, (534), 446 states have call predecessors, (534), 465 states have call successors, (534) [2025-01-09 03:44:33,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2909 states to 2909 states and 4703 transitions. [2025-01-09 03:44:33,671 INFO L78 Accepts]: Start accepts. Automaton has 2909 states and 4703 transitions. Word has length 184 [2025-01-09 03:44:33,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:33,672 INFO L471 AbstractCegarLoop]: Abstraction has 2909 states and 4703 transitions. [2025-01-09 03:44:33,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-01-09 03:44:33,672 INFO L276 IsEmpty]: Start isEmpty. Operand 2909 states and 4703 transitions. [2025-01-09 03:44:33,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2025-01-09 03:44:33,676 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:33,676 INFO L218 NwaCegarLoop]: trace histogram [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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:33,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2025-01-09 03:44:33,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,31 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:33,878 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:33,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:33,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1749267505, now seen corresponding path program 1 times [2025-01-09 03:44:33,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:33,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614496003] [2025-01-09 03:44:33,879 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:33,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:33,895 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-01-09 03:44:33,901 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-01-09 03:44:33,902 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:33,902 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:33,975 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-01-09 03:44:33,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:33,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614496003] [2025-01-09 03:44:33,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614496003] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:33,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:44:33,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:44:33,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348094602] [2025-01-09 03:44:33,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:33,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:33,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:33,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:33,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:44:33,978 INFO L87 Difference]: Start difference. First operand 2909 states and 4703 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-01-09 03:44:34,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:34,121 INFO L93 Difference]: Finished difference Result 5746 states and 9320 transitions. [2025-01-09 03:44:34,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:44:34,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 184 [2025-01-09 03:44:34,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:34,138 INFO L225 Difference]: With dead ends: 5746 [2025-01-09 03:44:34,138 INFO L226 Difference]: Without dead ends: 2869 [2025-01-09 03:44:34,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 03:44:34,147 INFO L435 NwaCegarLoop]: 964 mSDtfsCounter, 8 mSDsluCounter, 1924 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2888 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:34,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2888 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:44:34,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2869 states. [2025-01-09 03:44:34,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2869 to 2869. [2025-01-09 03:44:34,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2869 states, 2245 states have (on average 1.620489977728285) internal successors, (3638), 2293 states have internal predecessors, (3638), 469 states have call successors, (469), 141 states have call predecessors, (469), 154 states have return successors, (531), 445 states have call predecessors, (531), 464 states have call successors, (531) [2025-01-09 03:44:34,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2869 states to 2869 states and 4638 transitions. [2025-01-09 03:44:34,256 INFO L78 Accepts]: Start accepts. Automaton has 2869 states and 4638 transitions. Word has length 184 [2025-01-09 03:44:34,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:34,257 INFO L471 AbstractCegarLoop]: Abstraction has 2869 states and 4638 transitions. [2025-01-09 03:44:34,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 4 states have internal predecessors, (120), 2 states have call successors, (21), 2 states have call predecessors, (21), 3 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2025-01-09 03:44:34,257 INFO L276 IsEmpty]: Start isEmpty. Operand 2869 states and 4638 transitions. [2025-01-09 03:44:34,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2025-01-09 03:44:34,261 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:34,261 INFO L218 NwaCegarLoop]: trace histogram [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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:34,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-01-09 03:44:34,262 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:34,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:34,262 INFO L85 PathProgramCache]: Analyzing trace with hash -261440506, now seen corresponding path program 1 times [2025-01-09 03:44:34,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:34,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386629004] [2025-01-09 03:44:34,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:34,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:34,279 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 185 statements into 1 equivalence classes. [2025-01-09 03:44:34,289 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 185 of 185 statements. [2025-01-09 03:44:34,289 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:34,289 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:34,452 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2025-01-09 03:44:34,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:34,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386629004] [2025-01-09 03:44:34,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386629004] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:34,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:44:34,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 03:44:34,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330338532] [2025-01-09 03:44:34,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:34,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:44:34,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:34,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:44:34,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:44:34,454 INFO L87 Difference]: Start difference. First operand 2869 states and 4638 transitions. Second operand has 7 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2025-01-09 03:44:34,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:34,642 INFO L93 Difference]: Finished difference Result 5649 states and 9166 transitions. [2025-01-09 03:44:34,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:44:34,643 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 185 [2025-01-09 03:44:34,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:34,664 INFO L225 Difference]: With dead ends: 5649 [2025-01-09 03:44:34,664 INFO L226 Difference]: Without dead ends: 2855 [2025-01-09 03:44:34,675 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:44:34,676 INFO L435 NwaCegarLoop]: 947 mSDtfsCounter, 81 mSDsluCounter, 4664 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 5611 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:34,676 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 5611 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:44:34,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2855 states. [2025-01-09 03:44:34,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2855 to 2855. [2025-01-09 03:44:34,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2855 states, 2231 states have (on average 1.6203496190049305) internal successors, (3615), 2279 states have internal predecessors, (3615), 469 states have call successors, (469), 141 states have call predecessors, (469), 154 states have return successors, (531), 445 states have call predecessors, (531), 464 states have call successors, (531) [2025-01-09 03:44:34,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2855 states to 2855 states and 4615 transitions. [2025-01-09 03:44:34,852 INFO L78 Accepts]: Start accepts. Automaton has 2855 states and 4615 transitions. Word has length 185 [2025-01-09 03:44:34,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:34,853 INFO L471 AbstractCegarLoop]: Abstraction has 2855 states and 4615 transitions. [2025-01-09 03:44:34,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 20.5) internal successors, (123), 6 states have internal predecessors, (123), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2025-01-09 03:44:34,854 INFO L276 IsEmpty]: Start isEmpty. Operand 2855 states and 4615 transitions. [2025-01-09 03:44:34,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2025-01-09 03:44:34,858 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:34,858 INFO L218 NwaCegarLoop]: trace histogram [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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:34,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2025-01-09 03:44:34,858 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:34,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:34,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1926791067, now seen corresponding path program 1 times [2025-01-09 03:44:34,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:34,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203785088] [2025-01-09 03:44:34,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:34,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:34,879 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 186 statements into 1 equivalence classes. [2025-01-09 03:44:34,891 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 186 of 186 statements. [2025-01-09 03:44:34,892 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:34,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:35,178 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-01-09 03:44:35,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:35,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203785088] [2025-01-09 03:44:35,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203785088] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:35,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:44:35,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-01-09 03:44:35,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434210213] [2025-01-09 03:44:35,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:35,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 03:44:35,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:35,180 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 03:44:35,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:44:35,181 INFO L87 Difference]: Start difference. First operand 2855 states and 4615 transitions. Second operand has 10 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2025-01-09 03:44:35,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:35,346 INFO L93 Difference]: Finished difference Result 5676 states and 9195 transitions. [2025-01-09 03:44:35,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-09 03:44:35,347 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 186 [2025-01-09 03:44:35,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:35,359 INFO L225 Difference]: With dead ends: 5676 [2025-01-09 03:44:35,359 INFO L226 Difference]: Without dead ends: 2846 [2025-01-09 03:44:35,369 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:44:35,369 INFO L435 NwaCegarLoop]: 909 mSDtfsCounter, 42 mSDsluCounter, 7228 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 8137 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:35,369 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 8137 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:44:35,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states. [2025-01-09 03:44:35,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 2846. [2025-01-09 03:44:35,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2846 states, 2222 states have (on average 1.6201620162016201) internal successors, (3600), 2270 states have internal predecessors, (3600), 469 states have call successors, (469), 141 states have call predecessors, (469), 154 states have return successors, (531), 445 states have call predecessors, (531), 464 states have call successors, (531) [2025-01-09 03:44:35,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2846 states to 2846 states and 4600 transitions. [2025-01-09 03:44:35,474 INFO L78 Accepts]: Start accepts. Automaton has 2846 states and 4600 transitions. Word has length 186 [2025-01-09 03:44:35,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:35,474 INFO L471 AbstractCegarLoop]: Abstraction has 2846 states and 4600 transitions. [2025-01-09 03:44:35,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.11111111111111) internal successors, (127), 9 states have internal predecessors, (127), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2025-01-09 03:44:35,475 INFO L276 IsEmpty]: Start isEmpty. Operand 2846 states and 4600 transitions. [2025-01-09 03:44:35,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2025-01-09 03:44:35,479 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:35,479 INFO L218 NwaCegarLoop]: trace histogram [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] [2025-01-09 03:44:35,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2025-01-09 03:44:35,479 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:35,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:35,480 INFO L85 PathProgramCache]: Analyzing trace with hash 909596093, now seen corresponding path program 1 times [2025-01-09 03:44:35,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:35,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412392205] [2025-01-09 03:44:35,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:35,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:35,501 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-01-09 03:44:35,550 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-01-09 03:44:35,553 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:35,554 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:35,816 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-01-09 03:44:35,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:35,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412392205] [2025-01-09 03:44:35,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412392205] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:35,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:44:35,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-01-09 03:44:35,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841871082] [2025-01-09 03:44:35,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:35,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 03:44:35,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:35,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 03:44:35,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:44:35,819 INFO L87 Difference]: Start difference. First operand 2846 states and 4600 transitions. Second operand has 10 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2025-01-09 03:44:36,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:36,009 INFO L93 Difference]: Finished difference Result 5608 states and 9102 transitions. [2025-01-09 03:44:36,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 03:44:36,010 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 187 [2025-01-09 03:44:36,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:36,030 INFO L225 Difference]: With dead ends: 5608 [2025-01-09 03:44:36,030 INFO L226 Difference]: Without dead ends: 2840 [2025-01-09 03:44:36,038 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:44:36,039 INFO L435 NwaCegarLoop]: 918 mSDtfsCounter, 29 mSDsluCounter, 6384 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 7302 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:36,039 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 7302 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:44:36,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2840 states. [2025-01-09 03:44:36,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2840 to 2840. [2025-01-09 03:44:36,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2840 states, 2216 states have (on average 1.6213898916967509) internal successors, (3593), 2264 states have internal predecessors, (3593), 469 states have call successors, (469), 141 states have call predecessors, (469), 154 states have return successors, (531), 445 states have call predecessors, (531), 464 states have call successors, (531) [2025-01-09 03:44:36,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2840 states to 2840 states and 4593 transitions. [2025-01-09 03:44:36,190 INFO L78 Accepts]: Start accepts. Automaton has 2840 states and 4593 transitions. Word has length 187 [2025-01-09 03:44:36,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:36,191 INFO L471 AbstractCegarLoop]: Abstraction has 2840 states and 4593 transitions. [2025-01-09 03:44:36,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2025-01-09 03:44:36,191 INFO L276 IsEmpty]: Start isEmpty. Operand 2840 states and 4593 transitions. [2025-01-09 03:44:36,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2025-01-09 03:44:36,196 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:36,196 INFO L218 NwaCegarLoop]: trace histogram [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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:36,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2025-01-09 03:44:36,196 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:36,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:36,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1162554049, now seen corresponding path program 1 times [2025-01-09 03:44:36,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:36,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847488881] [2025-01-09 03:44:36,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:36,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:36,212 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-01-09 03:44:36,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-01-09 03:44:36,226 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:36,226 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:36,632 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-01-09 03:44:36,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:36,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847488881] [2025-01-09 03:44:36,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847488881] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:36,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051850925] [2025-01-09 03:44:36,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:36,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:36,633 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:36,635 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:44:36,638 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2025-01-09 03:44:36,835 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-01-09 03:44:37,053 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-01-09 03:44:37,053 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:37,053 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:37,061 INFO L256 TraceCheckSpWp]: Trace formula consists of 2174 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-01-09 03:44:37,065 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:37,336 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-01-09 03:44:37,336 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:37,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051850925] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:37,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:37,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2025-01-09 03:44:37,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037897249] [2025-01-09 03:44:37,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:37,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 03:44:37,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:37,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 03:44:37,338 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2025-01-09 03:44:37,338 INFO L87 Difference]: Start difference. First operand 2840 states and 4593 transitions. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 6 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (21), 6 states have call predecessors, (21), 5 states have call successors, (21) [2025-01-09 03:44:38,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:38,732 INFO L93 Difference]: Finished difference Result 5648 states and 9182 transitions. [2025-01-09 03:44:38,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:44:38,732 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 6 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (21), 6 states have call predecessors, (21), 5 states have call successors, (21) Word has length 187 [2025-01-09 03:44:38,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:38,752 INFO L225 Difference]: With dead ends: 5648 [2025-01-09 03:44:38,753 INFO L226 Difference]: Without dead ends: 2900 [2025-01-09 03:44:38,763 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2025-01-09 03:44:38,764 INFO L435 NwaCegarLoop]: 468 mSDtfsCounter, 2112 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 1721 mSolverCounterSat, 531 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2223 SdHoareTripleChecker+Valid, 1069 SdHoareTripleChecker+Invalid, 2252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 531 IncrementalHoareTripleChecker+Valid, 1721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:38,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2223 Valid, 1069 Invalid, 2252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [531 Valid, 1721 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-01-09 03:44:38,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2900 states. [2025-01-09 03:44:38,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2900 to 2728. [2025-01-09 03:44:38,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2728 states, 2088 states have (on average 1.60727969348659) internal successors, (3356), 2150 states have internal predecessors, (3356), 495 states have call successors, (495), 131 states have call predecessors, (495), 144 states have return successors, (544), 468 states have call predecessors, (544), 490 states have call successors, (544) [2025-01-09 03:44:38,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2728 states to 2728 states and 4395 transitions. [2025-01-09 03:44:38,964 INFO L78 Accepts]: Start accepts. Automaton has 2728 states and 4395 transitions. Word has length 187 [2025-01-09 03:44:38,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:38,965 INFO L471 AbstractCegarLoop]: Abstraction has 2728 states and 4395 transitions. [2025-01-09 03:44:38,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 6 states have internal predecessors, (128), 6 states have call successors, (22), 5 states have call predecessors, (22), 4 states have return successors, (21), 6 states have call predecessors, (21), 5 states have call successors, (21) [2025-01-09 03:44:38,965 INFO L276 IsEmpty]: Start isEmpty. Operand 2728 states and 4395 transitions. [2025-01-09 03:44:38,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2025-01-09 03:44:38,969 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:38,969 INFO L218 NwaCegarLoop]: trace histogram [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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:38,980 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2025-01-09 03:44:39,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2025-01-09 03:44:39,171 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:39,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:39,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1189619651, now seen corresponding path program 1 times [2025-01-09 03:44:39,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:39,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389395883] [2025-01-09 03:44:39,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:39,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:39,189 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-01-09 03:44:39,201 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-01-09 03:44:39,201 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:39,201 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:39,589 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-01-09 03:44:39,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:39,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389395883] [2025-01-09 03:44:39,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389395883] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:39,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584321215] [2025-01-09 03:44:39,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:39,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:39,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:39,592 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:44:39,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2025-01-09 03:44:39,784 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-01-09 03:44:40,006 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-01-09 03:44:40,006 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:40,006 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:40,019 INFO L256 TraceCheckSpWp]: Trace formula consists of 2177 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-01-09 03:44:40,023 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:40,184 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2025-01-09 03:44:40,184 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:40,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584321215] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:40,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:40,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2025-01-09 03:44:40,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700532410] [2025-01-09 03:44:40,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:40,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:44:40,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:40,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:44:40,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2025-01-09 03:44:40,185 INFO L87 Difference]: Start difference. First operand 2728 states and 4395 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 5 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (20), 5 states have call predecessors, (20), 4 states have call successors, (20) [2025-01-09 03:44:42,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:42,466 INFO L93 Difference]: Finished difference Result 8823 states and 14478 transitions. [2025-01-09 03:44:42,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-09 03:44:42,467 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 5 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (20), 5 states have call predecessors, (20), 4 states have call successors, (20) Word has length 187 [2025-01-09 03:44:42,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:42,506 INFO L225 Difference]: With dead ends: 8823 [2025-01-09 03:44:42,506 INFO L226 Difference]: Without dead ends: 6187 [2025-01-09 03:44:42,521 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2025-01-09 03:44:42,521 INFO L435 NwaCegarLoop]: 505 mSDtfsCounter, 2231 mSDsluCounter, 1608 mSDsCounter, 0 mSdLazyCounter, 3690 mSolverCounterSat, 523 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2321 SdHoareTripleChecker+Valid, 2113 SdHoareTripleChecker+Invalid, 4213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 523 IncrementalHoareTripleChecker+Valid, 3690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:42,522 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2321 Valid, 2113 Invalid, 4213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [523 Valid, 3690 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2025-01-09 03:44:42,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6187 states. [2025-01-09 03:44:42,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6187 to 5745. [2025-01-09 03:44:42,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5745 states, 4385 states have (on average 1.607981755986317) internal successors, (7051), 4518 states have internal predecessors, (7051), 1037 states have call successors, (1037), 263 states have call predecessors, (1037), 322 states have return successors, (1281), 1007 states have call predecessors, (1281), 1032 states have call successors, (1281) [2025-01-09 03:44:42,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5745 states to 5745 states and 9369 transitions. [2025-01-09 03:44:42,814 INFO L78 Accepts]: Start accepts. Automaton has 5745 states and 9369 transitions. Word has length 187 [2025-01-09 03:44:42,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:42,814 INFO L471 AbstractCegarLoop]: Abstraction has 5745 states and 9369 transitions. [2025-01-09 03:44:42,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 5 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (20), 5 states have call predecessors, (20), 4 states have call successors, (20) [2025-01-09 03:44:42,815 INFO L276 IsEmpty]: Start isEmpty. Operand 5745 states and 9369 transitions. [2025-01-09 03:44:42,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2025-01-09 03:44:42,819 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:42,819 INFO L218 NwaCegarLoop]: trace histogram [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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:42,830 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2025-01-09 03:44:43,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2025-01-09 03:44:43,020 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:43,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:43,021 INFO L85 PathProgramCache]: Analyzing trace with hash -2095580937, now seen corresponding path program 1 times [2025-01-09 03:44:43,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:43,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846246192] [2025-01-09 03:44:43,021 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:43,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:43,036 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 192 statements into 1 equivalence classes. [2025-01-09 03:44:43,049 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 192 of 192 statements. [2025-01-09 03:44:43,050 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:43,050 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:43,459 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-01-09 03:44:43,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:43,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846246192] [2025-01-09 03:44:43,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846246192] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:43,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902802279] [2025-01-09 03:44:43,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:43,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:43,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:43,462 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:44:43,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2025-01-09 03:44:43,660 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 192 statements into 1 equivalence classes. [2025-01-09 03:44:43,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 192 of 192 statements. [2025-01-09 03:44:43,877 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:43,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:43,886 INFO L256 TraceCheckSpWp]: Trace formula consists of 2194 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 03:44:43,890 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:43,904 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2025-01-09 03:44:43,904 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:43,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902802279] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:43,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:43,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2025-01-09 03:44:43,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137263173] [2025-01-09 03:44:43,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:43,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:44:43,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:43,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:44:43,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:44:43,907 INFO L87 Difference]: Start difference. First operand 5745 states and 9369 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 03:44:44,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:44,277 INFO L93 Difference]: Finished difference Result 14004 states and 23051 transitions. [2025-01-09 03:44:44,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:44:44,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 192 [2025-01-09 03:44:44,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:44,313 INFO L225 Difference]: With dead ends: 14004 [2025-01-09 03:44:44,313 INFO L226 Difference]: Without dead ends: 8354 [2025-01-09 03:44:44,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:44:44,326 INFO L435 NwaCegarLoop]: 1649 mSDtfsCounter, 845 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 2574 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 03:44:44,326 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [845 Valid, 2574 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:44:44,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8354 states. [2025-01-09 03:44:44,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8354 to 5739. [2025-01-09 03:44:44,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5739 states, 4382 states have (on average 1.6077133728890918) internal successors, (7045), 4512 states have internal predecessors, (7045), 1037 states have call successors, (1037), 263 states have call predecessors, (1037), 319 states have return successors, (1251), 1007 states have call predecessors, (1251), 1032 states have call successors, (1251) [2025-01-09 03:44:44,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5739 states to 5739 states and 9333 transitions. [2025-01-09 03:44:44,637 INFO L78 Accepts]: Start accepts. Automaton has 5739 states and 9333 transitions. Word has length 192 [2025-01-09 03:44:44,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:44,638 INFO L471 AbstractCegarLoop]: Abstraction has 5739 states and 9333 transitions. [2025-01-09 03:44:44,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2025-01-09 03:44:44,638 INFO L276 IsEmpty]: Start isEmpty. Operand 5739 states and 9333 transitions. [2025-01-09 03:44:44,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2025-01-09 03:44:44,642 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:44,642 INFO L218 NwaCegarLoop]: trace histogram [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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:44,653 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2025-01-09 03:44:44,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,34 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:44,843 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:44,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:44,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1202094599, now seen corresponding path program 1 times [2025-01-09 03:44:44,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:44,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225206939] [2025-01-09 03:44:44,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:44,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:44,857 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 192 statements into 1 equivalence classes. [2025-01-09 03:44:44,868 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 192 of 192 statements. [2025-01-09 03:44:44,868 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:44,868 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:45,330 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-01-09 03:44:45,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:45,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225206939] [2025-01-09 03:44:45,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225206939] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:45,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884325157] [2025-01-09 03:44:45,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:45,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:45,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:45,333 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:44:45,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2025-01-09 03:44:45,546 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 192 statements into 1 equivalence classes. [2025-01-09 03:44:45,744 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 192 of 192 statements. [2025-01-09 03:44:45,744 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:45,744 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:45,750 INFO L256 TraceCheckSpWp]: Trace formula consists of 2193 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-01-09 03:44:45,754 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:45,854 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2025-01-09 03:44:45,854 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:45,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884325157] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:45,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:45,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-01-09 03:44:45,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14907901] [2025-01-09 03:44:45,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:45,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:45,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:45,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:45,856 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:44:45,856 INFO L87 Difference]: Start difference. First operand 5739 states and 9333 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 4 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2025-01-09 03:44:46,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:46,934 INFO L93 Difference]: Finished difference Result 11271 states and 18442 transitions. [2025-01-09 03:44:46,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:44:46,934 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 4 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 192 [2025-01-09 03:44:46,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:46,971 INFO L225 Difference]: With dead ends: 11271 [2025-01-09 03:44:46,971 INFO L226 Difference]: Without dead ends: 5618 [2025-01-09 03:44:46,994 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 204 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 03:44:46,994 INFO L435 NwaCegarLoop]: 171 mSDtfsCounter, 1364 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 389 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1364 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 389 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:46,995 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1364 Valid, 185 Invalid, 1150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [389 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-01-09 03:44:46,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5618 states. [2025-01-09 03:44:47,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5618 to 5618. [2025-01-09 03:44:47,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5618 states, 4302 states have (on average 1.600185960018596) internal successors, (6884), 4431 states have internal predecessors, (6884), 996 states have call successors, (996), 263 states have call predecessors, (996), 319 states have return successors, (1211), 967 states have call predecessors, (1211), 992 states have call successors, (1211) [2025-01-09 03:44:47,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5618 states to 5618 states and 9091 transitions. [2025-01-09 03:44:47,356 INFO L78 Accepts]: Start accepts. Automaton has 5618 states and 9091 transitions. Word has length 192 [2025-01-09 03:44:47,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:47,356 INFO L471 AbstractCegarLoop]: Abstraction has 5618 states and 9091 transitions. [2025-01-09 03:44:47,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 4 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2025-01-09 03:44:47,356 INFO L276 IsEmpty]: Start isEmpty. Operand 5618 states and 9091 transitions. [2025-01-09 03:44:47,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2025-01-09 03:44:47,359 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:47,359 INFO L218 NwaCegarLoop]: trace histogram [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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:47,370 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2025-01-09 03:44:47,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2025-01-09 03:44:47,560 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:47,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:47,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1389509071, now seen corresponding path program 1 times [2025-01-09 03:44:47,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:47,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017002992] [2025-01-09 03:44:47,561 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:47,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:47,573 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 193 statements into 1 equivalence classes. [2025-01-09 03:44:47,581 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 193 of 193 statements. [2025-01-09 03:44:47,581 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:47,581 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:47,832 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-01-09 03:44:47,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:47,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017002992] [2025-01-09 03:44:47,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017002992] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:47,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756401843] [2025-01-09 03:44:47,832 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:47,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:47,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:47,834 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:44:47,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2025-01-09 03:44:48,012 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 193 statements into 1 equivalence classes. [2025-01-09 03:44:48,192 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 193 of 193 statements. [2025-01-09 03:44:48,192 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:48,192 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:48,200 INFO L256 TraceCheckSpWp]: Trace formula consists of 2195 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-09 03:44:48,204 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:48,241 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2025-01-09 03:44:48,242 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:48,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756401843] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:48,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:48,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2025-01-09 03:44:48,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897413450] [2025-01-09 03:44:48,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:48,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:44:48,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:48,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:44:48,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:44:48,243 INFO L87 Difference]: Start difference. First operand 5618 states and 9091 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2025-01-09 03:44:48,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:48,430 INFO L93 Difference]: Finished difference Result 5680 states and 9171 transitions. [2025-01-09 03:44:48,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:44:48,431 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) Word has length 193 [2025-01-09 03:44:48,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:48,458 INFO L225 Difference]: With dead ends: 5680 [2025-01-09 03:44:48,458 INFO L226 Difference]: Without dead ends: 5666 [2025-01-09 03:44:48,462 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:44:48,463 INFO L435 NwaCegarLoop]: 923 mSDtfsCounter, 0 mSDsluCounter, 2754 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3677 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:48,463 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3677 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:44:48,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5666 states. [2025-01-09 03:44:48,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5666 to 5666. [2025-01-09 03:44:48,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5666 states, 4350 states have (on average 1.5935632183908046) internal successors, (6932), 4479 states have internal predecessors, (6932), 996 states have call successors, (996), 263 states have call predecessors, (996), 319 states have return successors, (1211), 967 states have call predecessors, (1211), 992 states have call successors, (1211) [2025-01-09 03:44:48,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5666 states to 5666 states and 9139 transitions. [2025-01-09 03:44:48,709 INFO L78 Accepts]: Start accepts. Automaton has 5666 states and 9139 transitions. Word has length 193 [2025-01-09 03:44:48,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:48,709 INFO L471 AbstractCegarLoop]: Abstraction has 5666 states and 9139 transitions. [2025-01-09 03:44:48,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (21), 2 states have call predecessors, (21), 1 states have call successors, (21) [2025-01-09 03:44:48,709 INFO L276 IsEmpty]: Start isEmpty. Operand 5666 states and 9139 transitions. [2025-01-09 03:44:48,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2025-01-09 03:44:48,713 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:48,713 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 6, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:48,721 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2025-01-09 03:44:48,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2025-01-09 03:44:48,913 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:48,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:48,914 INFO L85 PathProgramCache]: Analyzing trace with hash 249222848, now seen corresponding path program 1 times [2025-01-09 03:44:48,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:48,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138956777] [2025-01-09 03:44:48,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:48,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:48,927 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 236 statements into 1 equivalence classes. [2025-01-09 03:44:48,934 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 236 of 236 statements. [2025-01-09 03:44:48,934 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:48,934 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:49,266 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2025-01-09 03:44:49,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:49,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138956777] [2025-01-09 03:44:49,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138956777] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:49,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868644981] [2025-01-09 03:44:49,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:49,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:49,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:49,270 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:44:49,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2025-01-09 03:44:49,455 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 236 statements into 1 equivalence classes. [2025-01-09 03:44:49,640 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 236 of 236 statements. [2025-01-09 03:44:49,640 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:49,641 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:49,647 INFO L256 TraceCheckSpWp]: Trace formula consists of 2300 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-09 03:44:49,651 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:49,893 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 78 proven. 9 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2025-01-09 03:44:49,893 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 03:44:50,639 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2025-01-09 03:44:50,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868644981] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 03:44:50,640 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 03:44:50,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 8] total 22 [2025-01-09 03:44:50,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960535573] [2025-01-09 03:44:50,640 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 03:44:50,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-01-09 03:44:50,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:50,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-01-09 03:44:50,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2025-01-09 03:44:50,642 INFO L87 Difference]: Start difference. First operand 5666 states and 9139 transitions. Second operand has 22 states, 22 states have (on average 14.590909090909092) internal successors, (321), 18 states have internal predecessors, (321), 10 states have call successors, (65), 6 states have call predecessors, (65), 13 states have return successors, (65), 14 states have call predecessors, (65), 9 states have call successors, (65)