./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec1_product31.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_product31.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 04ae9a4eaad9b026cab167b9d875c53fcb305c3c3f2af8aa4a0b048c8b5ef4cb --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 03:43:50,684 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 03:43:50,740 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 03:43:50,745 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 03:43:50,745 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 03:43:50,764 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 03:43:50,765 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 03:43:50,765 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 03:43:50,766 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 03:43:50,766 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 03:43:50,766 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 03:43:50,766 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 03:43:50,766 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 03:43:50,767 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 03:43:50,767 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 03:43:50,767 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 03:43:50,767 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 03:43:50,767 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 03:43:50,767 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 03:43:50,767 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 03:43:50,768 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 03:43:50,768 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 03:43:50,768 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 03:43:50,768 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 03:43:50,768 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 03:43:50,768 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 03:43:50,768 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 03:43:50,768 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 03:43:50,768 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 03:43:50,769 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:43:50,769 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:43:50,769 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:43:50,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:43:50,769 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 03:43:50,769 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:43:50,769 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:43:50,769 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:43:50,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:43:50,770 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 03:43:50,770 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 03:43:50,770 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 03:43:50,770 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 03:43:50,770 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 03:43:50,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 03:43:50,770 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 03:43:50,770 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 03:43:50,771 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 03:43:50,771 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 03:43:50,771 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 -> 04ae9a4eaad9b026cab167b9d875c53fcb305c3c3f2af8aa4a0b048c8b5ef4cb [2025-01-09 03:43:51,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 03:43:51,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 03:43:51,049 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 03:43:51,050 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 03:43:51,050 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 03:43:51,052 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec1_product31.cil.c [2025-01-09 03:43:52,328 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/149163c62/362aac4427e944518bf58bc78075dc20/FLAGf4d0480a6 [2025-01-09 03:43:52,673 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 03:43:52,673 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec1_product31.cil.c [2025-01-09 03:43:52,703 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/149163c62/362aac4427e944518bf58bc78075dc20/FLAGf4d0480a6 [2025-01-09 03:43:52,719 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/149163c62/362aac4427e944518bf58bc78075dc20 [2025-01-09 03:43:52,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 03:43:52,723 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 03:43:52,724 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 03:43:52,725 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 03:43:52,729 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 03:43:52,730 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:43:52" (1/1) ... [2025-01-09 03:43:52,732 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69796613 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:43:52, skipping insertion in model container [2025-01-09 03:43:52,732 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:43:52" (1/1) ... [2025-01-09 03:43:52,801 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 03:43:53,030 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_product31.cil.c[11232,11245] [2025-01-09 03:43:53,254 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:43:53,275 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 03:43:53,282 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2025-01-09 03:43:53,284 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [414] [2025-01-09 03:43:53,285 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [423] [2025-01-09 03:43:53,285 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2054] [2025-01-09 03:43:53,286 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2148] [2025-01-09 03:43:53,286 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [2164] [2025-01-09 03:43:53,287 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [2282] [2025-01-09 03:43:53,287 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2463] [2025-01-09 03:43:53,287 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2816] [2025-01-09 03:43:53,287 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3481] [2025-01-09 03:43:53,311 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_product31.cil.c[11232,11245] [2025-01-09 03:43:53,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:43:53,412 INFO L204 MainTranslator]: Completed translation [2025-01-09 03:43:53,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:43:53 WrapperNode [2025-01-09 03:43:53,415 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 03:43:53,416 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 03:43:53,416 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 03:43:53,416 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 03:43:53,421 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 03:43:53,443 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 03:43:53,489 INFO L138 Inliner]: procedures = 97, calls = 350, calls flagged for inlining = 28, calls inlined = 25, statements flattened = 951 [2025-01-09 03:43:53,490 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 03:43:53,490 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 03:43:53,491 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 03:43:53,491 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 03:43:53,501 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 03:43:53,501 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 03:43:53,511 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 03:43:53,548 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2025-01-09 03:43:53,551 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 03:43:53,551 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 03:43:53,580 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 03:43:53,586 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 03:43:53,600 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 03:43:53,606 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 03:43:53,609 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 03:43:53,617 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 03:43:53,618 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 03:43:53,618 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 03:43:53,618 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 03:43:53,619 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 03:43:53,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:43:53,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:53,656 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 03:43:53,659 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 03:43:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2025-01-09 03:43:53,682 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2025-01-09 03:43:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2025-01-09 03:43:53,682 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2025-01-09 03:43:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2025-01-09 03:43:53,682 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2025-01-09 03:43:53,682 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__empty [2025-01-09 03:43:53,683 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__empty [2025-01-09 03:43:53,683 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-01-09 03:43:53,683 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-01-09 03:43:53,683 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2025-01-09 03:43:53,683 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2025-01-09 03:43:53,683 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2025-01-09 03:43:53,683 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2025-01-09 03:43:53,683 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2025-01-09 03:43:53,683 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2025-01-09 03:43:53,684 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2025-01-09 03:43:53,684 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2025-01-09 03:43:53,684 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2025-01-09 03:43:53,684 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2025-01-09 03:43:53,684 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2025-01-09 03:43:53,684 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2025-01-09 03:43:53,684 INFO L130 BoogieDeclarations]: Found specification of procedure angelinaCall [2025-01-09 03:43:53,684 INFO L138 BoogieDeclarations]: Found implementation of procedure angelinaCall [2025-01-09 03:43:53,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 03:43:53,684 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2025-01-09 03:43:53,684 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2025-01-09 03:43:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2025-01-09 03:43:53,685 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2025-01-09 03:43:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2025-01-09 03:43:53,685 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2025-01-09 03:43:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2025-01-09 03:43:53,685 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2025-01-09 03:43:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-01-09 03:43:53,685 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-01-09 03:43:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2025-01-09 03:43:53,685 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2025-01-09 03:43:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2025-01-09 03:43:53,685 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2025-01-09 03:43:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2025-01-09 03:43:53,685 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2025-01-09 03:43:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2025-01-09 03:43:53,685 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2025-01-09 03:43:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2025-01-09 03:43:53,685 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2025-01-09 03:43:53,685 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2025-01-09 03:43:53,686 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2025-01-09 03:43:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2025-01-09 03:43:53,686 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2025-01-09 03:43:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2025-01-09 03:43:53,686 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2025-01-09 03:43:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 03:43:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 03:43:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 03:43:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 03:43:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 03:43:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 03:43:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 03:43:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 03:43:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-01-09 03:43:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-01-09 03:43:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-01-09 03:43:53,686 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-01-09 03:43:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-01-09 03:43:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-01-09 03:43:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-01-09 03:43:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-01-09 03:43:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-01-09 03:43:53,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-01-09 03:43:53,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-01-09 03:43:53,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-01-09 03:43:53,688 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2025-01-09 03:43:53,688 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2025-01-09 03:43:53,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 03:43:53,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 03:43:53,688 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2025-01-09 03:43:53,688 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2025-01-09 03:43:53,903 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 03:43:53,906 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 03:43:55,111 INFO L? ?]: Removed 483 outVars from TransFormulas that were not future-live. [2025-01-09 03:43:55,111 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 03:43:55,142 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 03:43:55,142 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 03:43:55,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:43:55 BoogieIcfgContainer [2025-01-09 03:43:55,143 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 03:43:55,145 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 03:43:55,145 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 03:43:55,148 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 03:43:55,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 03:43:52" (1/3) ... [2025-01-09 03:43:55,149 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d47bc28 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 03:43:55,149 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 03:43:55,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d47bc28 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 03:43:55,150 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 03:43:55,151 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product31.cil.c [2025-01-09 03:43:55,164 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 03:43:55,168 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec1_product31.cil.c that has 28 procedures, 602 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 03:43:55,244 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 03:43:55,254 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;@165914f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 03:43:55,255 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 03:43:55,260 INFO L276 IsEmpty]: Start isEmpty. Operand has 602 states, 468 states have (on average 1.6752136752136753) internal successors, (784), 489 states have internal predecessors, (784), 105 states have call successors, (105), 27 states have call predecessors, (105), 27 states have return successors, (105), 99 states have call predecessors, (105), 105 states have call successors, (105) [2025-01-09 03:43:55,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-01-09 03:43:55,297 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:55,298 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:43:55,298 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:55,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:55,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1032321735, now seen corresponding path program 1 times [2025-01-09 03:43:55,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:55,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820902674] [2025-01-09 03:43:55,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:55,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:55,434 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-01-09 03:43:55,523 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-01-09 03:43:55,524 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:55,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:55,955 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-01-09 03:43:55,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:55,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820902674] [2025-01-09 03:43:55,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820902674] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:55,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3466876] [2025-01-09 03:43:55,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:55,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:55,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:55,960 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 03:43:55,963 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 03:43:56,175 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-01-09 03:43:56,434 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-01-09 03:43:56,434 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:56,434 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:56,441 INFO L256 TraceCheckSpWp]: Trace formula consists of 1855 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 03:43:56,448 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:56,478 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-01-09 03:43:56,478 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:56,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3466876] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:56,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:56,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 4 [2025-01-09 03:43:56,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509039290] [2025-01-09 03:43:56,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:56,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 03:43:56,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:56,509 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 03:43:56,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:43:56,516 INFO L87 Difference]: Start difference. First operand has 602 states, 468 states have (on average 1.6752136752136753) internal successors, (784), 489 states have internal predecessors, (784), 105 states have call successors, (105), 27 states have call predecessors, (105), 27 states have return successors, (105), 99 states have call predecessors, (105), 105 states have call successors, (105) Second operand has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2025-01-09 03:43:56,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:56,593 INFO L93 Difference]: Finished difference Result 623 states and 1024 transitions. [2025-01-09 03:43:56,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 03:43:56,599 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 127 [2025-01-09 03:43:56,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:56,626 INFO L225 Difference]: With dead ends: 623 [2025-01-09 03:43:56,627 INFO L226 Difference]: Without dead ends: 594 [2025-01-09 03:43:56,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 128 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 03:43:56,634 INFO L435 NwaCegarLoop]: 986 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, 986 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 03:43:56,635 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 986 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:56,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2025-01-09 03:43:56,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 594. [2025-01-09 03:43:56,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 462 states have (on average 1.6753246753246753) internal successors, (774), 481 states have internal predecessors, (774), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2025-01-09 03:43:56,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 979 transitions. [2025-01-09 03:43:56,741 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 979 transitions. Word has length 127 [2025-01-09 03:43:56,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:56,744 INFO L471 AbstractCegarLoop]: Abstraction has 594 states and 979 transitions. [2025-01-09 03:43:56,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2025-01-09 03:43:56,744 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 979 transitions. [2025-01-09 03:43:56,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-01-09 03:43:56,755 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:56,755 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:43:56,766 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 03:43:56,956 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 03:43:56,956 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:56,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:56,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1056638770, now seen corresponding path program 1 times [2025-01-09 03:43:56,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:56,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452123426] [2025-01-09 03:43:56,957 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:56,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:56,993 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-01-09 03:43:57,018 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-01-09 03:43:57,018 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:57,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:57,245 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-01-09 03:43:57,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:57,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452123426] [2025-01-09 03:43:57,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452123426] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:57,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763278461] [2025-01-09 03:43:57,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:57,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:57,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:57,253 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 03:43:57,256 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 03:43:57,441 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-01-09 03:43:57,690 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-01-09 03:43:57,691 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:57,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:57,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 1857 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:43:57,711 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:57,764 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-01-09 03:43:57,764 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:57,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763278461] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:57,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:57,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:43:57,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027713687] [2025-01-09 03:43:57,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:57,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:43:57,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:57,767 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:43:57,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:43:57,768 INFO L87 Difference]: Start difference. First operand 594 states and 979 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, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 03:43:57,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:57,889 INFO L93 Difference]: Finished difference Result 1179 states and 1950 transitions. [2025-01-09 03:43:57,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:43:57,890 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, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 128 [2025-01-09 03:43:57,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:57,896 INFO L225 Difference]: With dead ends: 1179 [2025-01-09 03:43:57,896 INFO L226 Difference]: Without dead ends: 594 [2025-01-09 03:43:57,901 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 127 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 03:43:57,902 INFO L435 NwaCegarLoop]: 967 mSDtfsCounter, 5 mSDsluCounter, 1928 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2895 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 03:43:57,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2895 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:57,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2025-01-09 03:43:57,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 594. [2025-01-09 03:43:57,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 462 states have (on average 1.673160173160173) internal successors, (773), 481 states have internal predecessors, (773), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2025-01-09 03:43:57,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 978 transitions. [2025-01-09 03:43:57,945 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 978 transitions. Word has length 128 [2025-01-09 03:43:57,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:57,946 INFO L471 AbstractCegarLoop]: Abstraction has 594 states and 978 transitions. [2025-01-09 03:43:57,946 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, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 03:43:57,946 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 978 transitions. [2025-01-09 03:43:57,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2025-01-09 03:43:57,956 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:57,956 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:43:57,968 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 03:43:58,157 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 03:43:58,157 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:58,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:58,158 INFO L85 PathProgramCache]: Analyzing trace with hash -124375876, now seen corresponding path program 1 times [2025-01-09 03:43:58,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:58,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251490893] [2025-01-09 03:43:58,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:58,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:58,180 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-01-09 03:43:58,193 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-01-09 03:43:58,194 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:58,194 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:58,395 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-01-09 03:43:58,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:58,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251490893] [2025-01-09 03:43:58,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251490893] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:58,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380078428] [2025-01-09 03:43:58,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:58,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:58,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:58,399 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 03:43:58,402 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 03:43:58,566 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-01-09 03:43:58,809 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-01-09 03:43:58,809 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:58,809 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:58,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 1859 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:43:58,823 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:58,857 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-01-09 03:43:58,857 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:58,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380078428] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:58,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:58,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:43:58,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147180333] [2025-01-09 03:43:58,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:58,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:43:58,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:58,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:43:58,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:43:58,859 INFO L87 Difference]: Start difference. First operand 594 states and 978 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, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 03:43:58,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:58,950 INFO L93 Difference]: Finished difference Result 1179 states and 1948 transitions. [2025-01-09 03:43:58,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:43:58,951 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, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 130 [2025-01-09 03:43:58,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:58,959 INFO L225 Difference]: With dead ends: 1179 [2025-01-09 03:43:58,959 INFO L226 Difference]: Without dead ends: 594 [2025-01-09 03:43:58,962 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 129 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 03:43:58,965 INFO L435 NwaCegarLoop]: 967 mSDtfsCounter, 4 mSDsluCounter, 1928 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2895 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 03:43:58,966 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2895 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:58,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2025-01-09 03:43:58,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 594. [2025-01-09 03:43:58,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 594 states, 462 states have (on average 1.670995670995671) internal successors, (772), 481 states have internal predecessors, (772), 105 states have call successors, (105), 27 states have call predecessors, (105), 26 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2025-01-09 03:43:59,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 594 states to 594 states and 977 transitions. [2025-01-09 03:43:59,001 INFO L78 Accepts]: Start accepts. Automaton has 594 states and 977 transitions. Word has length 130 [2025-01-09 03:43:59,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:59,001 INFO L471 AbstractCegarLoop]: Abstraction has 594 states and 977 transitions. [2025-01-09 03:43:59,002 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, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 03:43:59,002 INFO L276 IsEmpty]: Start isEmpty. Operand 594 states and 977 transitions. [2025-01-09 03:43:59,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-01-09 03:43:59,007 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:59,008 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:43:59,019 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 03:43:59,208 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 03:43:59,209 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:43:59,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:43:59,209 INFO L85 PathProgramCache]: Analyzing trace with hash 2118549362, now seen corresponding path program 1 times [2025-01-09 03:43:59,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:43:59,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562759973] [2025-01-09 03:43:59,209 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:59,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:43:59,231 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-01-09 03:43:59,241 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-01-09 03:43:59,243 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:59,243 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:59,415 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-01-09 03:43:59,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:43:59,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562759973] [2025-01-09 03:43:59,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562759973] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:43:59,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358778227] [2025-01-09 03:43:59,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:43:59,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:43:59,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:43:59,418 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 03:43:59,421 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 03:43:59,573 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-01-09 03:43:59,786 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-01-09 03:43:59,786 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:43:59,786 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:43:59,796 INFO L256 TraceCheckSpWp]: Trace formula consists of 1861 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:43:59,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:43:59,830 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-01-09 03:43:59,833 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:43:59,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358778227] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:43:59,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:43:59,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:43:59,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661021596] [2025-01-09 03:43:59,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:43:59,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:43:59,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:43:59,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:43:59,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:43:59,836 INFO L87 Difference]: Start difference. First operand 594 states and 977 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 03:43:59,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:43:59,917 INFO L93 Difference]: Finished difference Result 1186 states and 1955 transitions. [2025-01-09 03:43:59,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:43:59,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 132 [2025-01-09 03:43:59,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:43:59,923 INFO L225 Difference]: With dead ends: 1186 [2025-01-09 03:43:59,924 INFO L226 Difference]: Without dead ends: 603 [2025-01-09 03:43:59,927 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:43:59,927 INFO L435 NwaCegarLoop]: 966 mSDtfsCounter, 13 mSDsluCounter, 1926 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2892 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 03:43:59,928 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2892 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:43:59,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2025-01-09 03:43:59,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 603. [2025-01-09 03:43:59,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 470 states have (on average 1.6680851063829787) internal successors, (784), 489 states have internal predecessors, (784), 105 states have call successors, (105), 28 states have call predecessors, (105), 27 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2025-01-09 03:43:59,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 989 transitions. [2025-01-09 03:43:59,954 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 989 transitions. Word has length 132 [2025-01-09 03:43:59,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:43:59,955 INFO L471 AbstractCegarLoop]: Abstraction has 603 states and 989 transitions. [2025-01-09 03:43:59,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 03:43:59,955 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 989 transitions. [2025-01-09 03:43:59,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2025-01-09 03:43:59,961 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:43:59,961 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:43:59,972 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 03:44:00,165 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 03:44:00,165 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:00,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:00,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1330340160, now seen corresponding path program 1 times [2025-01-09 03:44:00,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:00,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614071136] [2025-01-09 03:44:00,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:00,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:00,186 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-01-09 03:44:00,203 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-01-09 03:44:00,204 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:00,204 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:00,367 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-01-09 03:44:00,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:00,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614071136] [2025-01-09 03:44:00,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614071136] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:00,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1335260437] [2025-01-09 03:44:00,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:00,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:00,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:00,370 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 03:44:00,373 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 03:44:00,538 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-01-09 03:44:00,741 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-01-09 03:44:00,741 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:00,741 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:00,749 INFO L256 TraceCheckSpWp]: Trace formula consists of 1862 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:44:00,756 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:00,789 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-01-09 03:44:00,789 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:00,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1335260437] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:00,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:00,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:44:00,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982694979] [2025-01-09 03:44:00,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:00,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:00,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:00,793 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:00,793 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:44:00,793 INFO L87 Difference]: Start difference. First operand 603 states and 989 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 03:44:00,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:00,875 INFO L93 Difference]: Finished difference Result 1188 states and 1956 transitions. [2025-01-09 03:44:00,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:44:00,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 133 [2025-01-09 03:44:00,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:00,881 INFO L225 Difference]: With dead ends: 1188 [2025-01-09 03:44:00,882 INFO L226 Difference]: Without dead ends: 603 [2025-01-09 03:44:00,885 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:44:00,886 INFO L435 NwaCegarLoop]: 966 mSDtfsCounter, 11 mSDsluCounter, 1926 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2892 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 03:44:00,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2892 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:44:00,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2025-01-09 03:44:00,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 603. [2025-01-09 03:44:00,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 470 states have (on average 1.6659574468085105) internal successors, (783), 489 states have internal predecessors, (783), 105 states have call successors, (105), 28 states have call predecessors, (105), 27 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2025-01-09 03:44:00,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 988 transitions. [2025-01-09 03:44:00,912 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 988 transitions. Word has length 133 [2025-01-09 03:44:00,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:00,912 INFO L471 AbstractCegarLoop]: Abstraction has 603 states and 988 transitions. [2025-01-09 03:44:00,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 03:44:00,912 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 988 transitions. [2025-01-09 03:44:00,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-01-09 03:44:00,917 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:00,917 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:44:00,927 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 03:44:01,117 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 03:44:01,118 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:01,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:01,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1019292754, now seen corresponding path program 1 times [2025-01-09 03:44:01,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:01,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594005292] [2025-01-09 03:44:01,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:01,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:01,137 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-01-09 03:44:01,168 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-01-09 03:44:01,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:01,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:01,271 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-01-09 03:44:01,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:01,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594005292] [2025-01-09 03:44:01,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594005292] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:01,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277621925] [2025-01-09 03:44:01,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:01,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:01,273 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:01,275 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 03:44:01,278 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 03:44:01,437 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-01-09 03:44:01,643 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-01-09 03:44:01,644 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:01,644 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:01,654 INFO L256 TraceCheckSpWp]: Trace formula consists of 1863 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:44:01,658 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:01,686 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-01-09 03:44:01,686 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:01,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277621925] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:01,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:01,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:44:01,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953453620] [2025-01-09 03:44:01,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:01,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:01,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:01,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:01,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:44:01,688 INFO L87 Difference]: Start difference. First operand 603 states and 988 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 03:44:01,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:01,760 INFO L93 Difference]: Finished difference Result 1188 states and 1955 transitions. [2025-01-09 03:44:01,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:44:01,760 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 134 [2025-01-09 03:44:01,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:01,765 INFO L225 Difference]: With dead ends: 1188 [2025-01-09 03:44:01,766 INFO L226 Difference]: Without dead ends: 603 [2025-01-09 03:44:01,769 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:44:01,770 INFO L435 NwaCegarLoop]: 966 mSDtfsCounter, 10 mSDsluCounter, 1926 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2892 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 03:44:01,771 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2892 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:44:01,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2025-01-09 03:44:01,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 603. [2025-01-09 03:44:01,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 470 states have (on average 1.6638297872340426) internal successors, (782), 489 states have internal predecessors, (782), 105 states have call successors, (105), 28 states have call predecessors, (105), 27 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2025-01-09 03:44:01,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 987 transitions. [2025-01-09 03:44:01,797 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 987 transitions. Word has length 134 [2025-01-09 03:44:01,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:01,798 INFO L471 AbstractCegarLoop]: Abstraction has 603 states and 987 transitions. [2025-01-09 03:44:01,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 03:44:01,798 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 987 transitions. [2025-01-09 03:44:01,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-01-09 03:44:01,802 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:01,803 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:44:01,813 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-01-09 03:44:02,003 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 03:44:02,003 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:02,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:02,004 INFO L85 PathProgramCache]: Analyzing trace with hash -233453188, now seen corresponding path program 1 times [2025-01-09 03:44:02,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:02,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801671725] [2025-01-09 03:44:02,004 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:02,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:02,032 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-01-09 03:44:02,039 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-01-09 03:44:02,039 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:02,039 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:02,253 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-01-09 03:44:02,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:02,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801671725] [2025-01-09 03:44:02,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801671725] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:02,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [411953236] [2025-01-09 03:44:02,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:02,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:02,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:02,256 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 03:44:02,258 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 03:44:02,420 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-01-09 03:44:02,653 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-01-09 03:44:02,653 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:02,653 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:02,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 1864 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:44:02,663 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:02,701 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-01-09 03:44:02,702 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:02,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [411953236] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:02,702 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:02,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2025-01-09 03:44:02,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415576723] [2025-01-09 03:44:02,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:02,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:02,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:02,703 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:02,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:44:02,704 INFO L87 Difference]: Start difference. First operand 603 states and 987 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 03:44:02,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:02,852 INFO L93 Difference]: Finished difference Result 1214 states and 2002 transitions. [2025-01-09 03:44:02,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:44:02,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 135 [2025-01-09 03:44:02,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:02,861 INFO L225 Difference]: With dead ends: 1214 [2025-01-09 03:44:02,861 INFO L226 Difference]: Without dead ends: 618 [2025-01-09 03:44:02,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:44:02,865 INFO L435 NwaCegarLoop]: 941 mSDtfsCounter, 76 mSDsluCounter, 1842 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 2783 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 03:44:02,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 2783 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:44:02,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2025-01-09 03:44:02,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 603. [2025-01-09 03:44:02,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 470 states have (on average 1.6531914893617021) internal successors, (777), 489 states have internal predecessors, (777), 105 states have call successors, (105), 28 states have call predecessors, (105), 27 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2025-01-09 03:44:02,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 982 transitions. [2025-01-09 03:44:02,895 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 982 transitions. Word has length 135 [2025-01-09 03:44:02,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:02,896 INFO L471 AbstractCegarLoop]: Abstraction has 603 states and 982 transitions. [2025-01-09 03:44:02,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 03:44:02,896 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 982 transitions. [2025-01-09 03:44:02,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-01-09 03:44:02,901 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:02,901 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:44:02,913 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 03:44:03,102 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 03:44:03,102 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:03,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:03,102 INFO L85 PathProgramCache]: Analyzing trace with hash 959490350, now seen corresponding path program 1 times [2025-01-09 03:44:03,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:03,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524711221] [2025-01-09 03:44:03,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:03,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:03,120 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-01-09 03:44:03,126 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-01-09 03:44:03,127 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:03,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:03,390 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-01-09 03:44:03,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:03,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524711221] [2025-01-09 03:44:03,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524711221] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:03,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997503496] [2025-01-09 03:44:03,391 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:03,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:03,391 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:03,394 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 03:44:03,396 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 03:44:03,557 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-01-09 03:44:03,771 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-01-09 03:44:03,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:03,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:03,779 INFO L256 TraceCheckSpWp]: Trace formula consists of 1866 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:44:03,784 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:03,824 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-01-09 03:44:03,824 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:03,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1997503496] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:03,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:03,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2025-01-09 03:44:03,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98151958] [2025-01-09 03:44:03,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:03,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:03,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:03,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:03,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:44:03,827 INFO L87 Difference]: Start difference. First operand 603 states and 982 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 03:44:03,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:03,971 INFO L93 Difference]: Finished difference Result 1214 states and 1992 transitions. [2025-01-09 03:44:03,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:44:03,971 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 137 [2025-01-09 03:44:03,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:03,978 INFO L225 Difference]: With dead ends: 1214 [2025-01-09 03:44:03,978 INFO L226 Difference]: Without dead ends: 618 [2025-01-09 03:44:03,981 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:44:03,982 INFO L435 NwaCegarLoop]: 941 mSDtfsCounter, 75 mSDsluCounter, 1842 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 2783 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 03:44:03,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 2783 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:44:03,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2025-01-09 03:44:03,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 603. [2025-01-09 03:44:04,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 603 states, 470 states have (on average 1.6425531914893616) internal successors, (772), 489 states have internal predecessors, (772), 105 states have call successors, (105), 28 states have call predecessors, (105), 27 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2025-01-09 03:44:04,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 603 states to 603 states and 977 transitions. [2025-01-09 03:44:04,004 INFO L78 Accepts]: Start accepts. Automaton has 603 states and 977 transitions. Word has length 137 [2025-01-09 03:44:04,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:04,005 INFO L471 AbstractCegarLoop]: Abstraction has 603 states and 977 transitions. [2025-01-09 03:44:04,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 03:44:04,005 INFO L276 IsEmpty]: Start isEmpty. Operand 603 states and 977 transitions. [2025-01-09 03:44:04,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2025-01-09 03:44:04,009 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:04,009 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] [2025-01-09 03:44:04,020 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 03:44:04,209 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 03:44:04,209 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:04,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:04,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1386260900, now seen corresponding path program 1 times [2025-01-09 03:44:04,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:04,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221259523] [2025-01-09 03:44:04,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:04,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:04,231 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-01-09 03:44:04,238 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-01-09 03:44:04,239 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:04,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:04,471 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-01-09 03:44:04,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:04,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221259523] [2025-01-09 03:44:04,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221259523] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:04,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421058346] [2025-01-09 03:44:04,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:04,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:04,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:04,475 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 03:44:04,477 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 03:44:04,639 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-01-09 03:44:04,847 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-01-09 03:44:04,847 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:04,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:04,853 INFO L256 TraceCheckSpWp]: Trace formula consists of 1868 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:44:04,859 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:04,904 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-01-09 03:44:04,904 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:04,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421058346] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:04,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:04,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2025-01-09 03:44:04,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703626090] [2025-01-09 03:44:04,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:04,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:04,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:04,905 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:04,905 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:44:04,905 INFO L87 Difference]: Start difference. First operand 603 states and 977 transitions. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 03:44:05,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:05,111 INFO L93 Difference]: Finished difference Result 1265 states and 2065 transitions. [2025-01-09 03:44:05,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:44:05,111 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 139 [2025-01-09 03:44:05,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:05,117 INFO L225 Difference]: With dead ends: 1265 [2025-01-09 03:44:05,118 INFO L226 Difference]: Without dead ends: 684 [2025-01-09 03:44:05,122 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:44:05,123 INFO L435 NwaCegarLoop]: 974 mSDtfsCounter, 130 mSDsluCounter, 1840 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 2814 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:05,124 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 2814 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 03:44:05,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2025-01-09 03:44:05,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 654. [2025-01-09 03:44:05,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 520 states have (on average 1.648076923076923) internal successors, (857), 539 states have internal predecessors, (857), 105 states have call successors, (105), 29 states have call predecessors, (105), 28 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2025-01-09 03:44:05,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 1062 transitions. [2025-01-09 03:44:05,153 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 1062 transitions. Word has length 139 [2025-01-09 03:44:05,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:05,154 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 1062 transitions. [2025-01-09 03:44:05,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 03:44:05,154 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 1062 transitions. [2025-01-09 03:44:05,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-01-09 03:44:05,159 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:05,159 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:44:05,172 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 03:44:05,359 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 03:44:05,360 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:05,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:05,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1102754731, now seen corresponding path program 1 times [2025-01-09 03:44:05,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:05,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305722800] [2025-01-09 03:44:05,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:05,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:05,400 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-01-09 03:44:05,406 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-01-09 03:44:05,407 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:05,407 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:05,629 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-01-09 03:44:05,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:05,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305722800] [2025-01-09 03:44:05,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305722800] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:05,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125276002] [2025-01-09 03:44:05,630 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:05,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:05,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:05,632 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 03:44:05,635 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 03:44:05,795 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-01-09 03:44:05,981 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-01-09 03:44:05,982 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:05,982 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:05,990 INFO L256 TraceCheckSpWp]: Trace formula consists of 1869 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:44:05,994 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:06,032 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-01-09 03:44:06,032 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:06,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125276002] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:06,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:06,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2025-01-09 03:44:06,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369504202] [2025-01-09 03:44:06,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:06,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:06,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:06,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:06,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:44:06,035 INFO L87 Difference]: Start difference. First operand 654 states and 1062 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 03:44:06,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:06,244 INFO L93 Difference]: Finished difference Result 1280 states and 2089 transitions. [2025-01-09 03:44:06,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:44:06,245 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 140 [2025-01-09 03:44:06,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:06,252 INFO L225 Difference]: With dead ends: 1280 [2025-01-09 03:44:06,252 INFO L226 Difference]: Without dead ends: 684 [2025-01-09 03:44:06,256 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:44:06,257 INFO L435 NwaCegarLoop]: 973 mSDtfsCounter, 124 mSDsluCounter, 1814 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 2787 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:06,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 2787 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 03:44:06,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2025-01-09 03:44:06,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 654. [2025-01-09 03:44:06,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 654 states, 520 states have (on average 1.6384615384615384) internal successors, (852), 539 states have internal predecessors, (852), 105 states have call successors, (105), 29 states have call predecessors, (105), 28 states have return successors, (100), 98 states have call predecessors, (100), 100 states have call successors, (100) [2025-01-09 03:44:06,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 654 states to 654 states and 1057 transitions. [2025-01-09 03:44:06,284 INFO L78 Accepts]: Start accepts. Automaton has 654 states and 1057 transitions. Word has length 140 [2025-01-09 03:44:06,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:06,284 INFO L471 AbstractCegarLoop]: Abstraction has 654 states and 1057 transitions. [2025-01-09 03:44:06,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 03:44:06,285 INFO L276 IsEmpty]: Start isEmpty. Operand 654 states and 1057 transitions. [2025-01-09 03:44:06,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-01-09 03:44:06,288 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:06,289 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:44:06,300 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 03:44:06,489 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 03:44:06,490 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:06,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:06,491 INFO L85 PathProgramCache]: Analyzing trace with hash -789335498, now seen corresponding path program 1 times [2025-01-09 03:44:06,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:06,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932231997] [2025-01-09 03:44:06,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:06,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:06,509 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-01-09 03:44:06,515 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-01-09 03:44:06,515 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:06,516 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:06,670 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-01-09 03:44:06,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:06,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932231997] [2025-01-09 03:44:06,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932231997] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:06,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487093736] [2025-01-09 03:44:06,671 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:06,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:06,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:06,673 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 03:44:06,676 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 03:44:06,837 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-01-09 03:44:07,022 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-01-09 03:44:07,022 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:07,022 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:07,031 INFO L256 TraceCheckSpWp]: Trace formula consists of 1865 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 03:44:07,035 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:07,118 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-01-09 03:44:07,118 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:07,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487093736] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:07,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:07,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2025-01-09 03:44:07,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269953468] [2025-01-09 03:44:07,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:07,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:44:07,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:07,120 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:44:07,120 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:44:07,120 INFO L87 Difference]: Start difference. First operand 654 states and 1057 transitions. Second operand has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 03:44:07,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:07,308 INFO L93 Difference]: Finished difference Result 1273 states and 2069 transitions. [2025-01-09 03:44:07,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 03:44:07,309 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) Word has length 140 [2025-01-09 03:44:07,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:07,316 INFO L225 Difference]: With dead ends: 1273 [2025-01-09 03:44:07,316 INFO L226 Difference]: Without dead ends: 692 [2025-01-09 03:44:07,320 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 135 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 03:44:07,321 INFO L435 NwaCegarLoop]: 947 mSDtfsCounter, 113 mSDsluCounter, 5593 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 6540 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 03:44:07,321 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 6540 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:44:07,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2025-01-09 03:44:07,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 673. [2025-01-09 03:44:07,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 536 states have (on average 1.6380597014925373) internal successors, (878), 557 states have internal predecessors, (878), 106 states have call successors, (106), 29 states have call predecessors, (106), 30 states have return successors, (103), 99 states have call predecessors, (103), 101 states have call successors, (103) [2025-01-09 03:44:07,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 1087 transitions. [2025-01-09 03:44:07,356 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 1087 transitions. Word has length 140 [2025-01-09 03:44:07,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:07,357 INFO L471 AbstractCegarLoop]: Abstraction has 673 states and 1087 transitions. [2025-01-09 03:44:07,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 3 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 03:44:07,358 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 1087 transitions. [2025-01-09 03:44:07,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-01-09 03:44:07,362 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:07,362 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:44:07,373 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 03:44:07,563 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 03:44:07,563 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:07,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:07,564 INFO L85 PathProgramCache]: Analyzing trace with hash -358418697, now seen corresponding path program 1 times [2025-01-09 03:44:07,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:07,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626540459] [2025-01-09 03:44:07,564 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:07,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:07,584 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-01-09 03:44:07,592 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-01-09 03:44:07,592 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:07,592 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:07,677 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-01-09 03:44:07,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:07,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626540459] [2025-01-09 03:44:07,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626540459] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:07,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880861706] [2025-01-09 03:44:07,678 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:07,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:07,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:07,681 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 03:44:07,683 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 03:44:07,845 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-01-09 03:44:08,052 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-01-09 03:44:08,053 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:08,053 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:08,063 INFO L256 TraceCheckSpWp]: Trace formula consists of 1864 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 03:44:08,067 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:08,132 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-01-09 03:44:08,132 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:08,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [880861706] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:08,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:08,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2025-01-09 03:44:08,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528124838] [2025-01-09 03:44:08,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:08,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:44:08,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:08,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:44:08,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:44:08,136 INFO L87 Difference]: Start difference. First operand 673 states and 1087 transitions. Second operand has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 03:44:08,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:08,241 INFO L93 Difference]: Finished difference Result 1211 states and 1969 transitions. [2025-01-09 03:44:08,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:44:08,242 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 140 [2025-01-09 03:44:08,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:08,249 INFO L225 Difference]: With dead ends: 1211 [2025-01-09 03:44:08,249 INFO L226 Difference]: Without dead ends: 697 [2025-01-09 03:44:08,252 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 136 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 03:44:08,253 INFO L435 NwaCegarLoop]: 960 mSDtfsCounter, 86 mSDsluCounter, 4721 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 5681 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 03:44:08,253 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 5681 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:44:08,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2025-01-09 03:44:08,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 692. [2025-01-09 03:44:08,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 552 states have (on average 1.6376811594202898) internal successors, (904), 575 states have internal predecessors, (904), 107 states have call successors, (107), 29 states have call predecessors, (107), 32 states have return successors, (106), 100 states have call predecessors, (106), 102 states have call successors, (106) [2025-01-09 03:44:08,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1117 transitions. [2025-01-09 03:44:08,282 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1117 transitions. Word has length 140 [2025-01-09 03:44:08,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:08,284 INFO L471 AbstractCegarLoop]: Abstraction has 692 states and 1117 transitions. [2025-01-09 03:44:08,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 6 states have internal predecessors, (92), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 03:44:08,285 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1117 transitions. [2025-01-09 03:44:08,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-01-09 03:44:08,288 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:08,289 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] [2025-01-09 03:44:08,300 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 03:44:08,489 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 03:44:08,490 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:08,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:08,490 INFO L85 PathProgramCache]: Analyzing trace with hash -1482275455, now seen corresponding path program 1 times [2025-01-09 03:44:08,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:08,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788816333] [2025-01-09 03:44:08,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:08,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:08,507 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-01-09 03:44:08,516 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-01-09 03:44:08,516 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:08,516 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:08,610 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-01-09 03:44:08,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:08,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788816333] [2025-01-09 03:44:08,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788816333] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:08,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670517153] [2025-01-09 03:44:08,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:08,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:08,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:08,613 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 03:44:08,615 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 03:44:08,765 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-01-09 03:44:08,947 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-01-09 03:44:08,947 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:08,947 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:08,954 INFO L256 TraceCheckSpWp]: Trace formula consists of 1861 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 03:44:08,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:09,044 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-01-09 03:44:09,045 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:09,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [670517153] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:09,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:09,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4] total 10 [2025-01-09 03:44:09,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113232596] [2025-01-09 03:44:09,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:09,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:44:09,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:09,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:44:09,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:44:09,049 INFO L87 Difference]: Start difference. First operand 692 states and 1117 transitions. Second operand has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 03:44:09,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:09,199 INFO L93 Difference]: Finished difference Result 1211 states and 1969 transitions. [2025-01-09 03:44:09,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 03:44:09,200 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 141 [2025-01-09 03:44:09,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:09,206 INFO L225 Difference]: With dead ends: 1211 [2025-01-09 03:44:09,207 INFO L226 Difference]: Without dead ends: 697 [2025-01-09 03:44:09,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 137 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 03:44:09,210 INFO L435 NwaCegarLoop]: 949 mSDtfsCounter, 113 mSDsluCounter, 5599 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 6548 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 03:44:09,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 6548 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:44:09,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2025-01-09 03:44:09,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 692. [2025-01-09 03:44:09,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 552 states have (on average 1.6376811594202898) internal successors, (904), 575 states have internal predecessors, (904), 107 states have call successors, (107), 29 states have call predecessors, (107), 32 states have return successors, (106), 100 states have call predecessors, (106), 102 states have call successors, (106) [2025-01-09 03:44:09,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1117 transitions. [2025-01-09 03:44:09,238 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1117 transitions. Word has length 141 [2025-01-09 03:44:09,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:09,238 INFO L471 AbstractCegarLoop]: Abstraction has 692 states and 1117 transitions. [2025-01-09 03:44:09,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.285714285714286) internal successors, (93), 7 states have internal predecessors, (93), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 03:44:09,238 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1117 transitions. [2025-01-09 03:44:09,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-01-09 03:44:09,242 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:09,243 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:44:09,253 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 03:44:09,443 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 03:44:09,444 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:09,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:09,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1300579261, now seen corresponding path program 1 times [2025-01-09 03:44:09,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:09,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653546658] [2025-01-09 03:44:09,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:09,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:09,462 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-01-09 03:44:09,469 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-01-09 03:44:09,469 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:09,469 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:09,541 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-01-09 03:44:09,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:09,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653546658] [2025-01-09 03:44:09,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653546658] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:09,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631845499] [2025-01-09 03:44:09,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:09,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:09,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:09,545 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:44:09,548 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 03:44:09,707 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-01-09 03:44:09,922 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-01-09 03:44:09,922 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:09,923 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:09,931 INFO L256 TraceCheckSpWp]: Trace formula consists of 1865 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:44:09,938 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:09,963 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-01-09 03:44:09,963 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:09,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631845499] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:09,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:09,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:44:09,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062201822] [2025-01-09 03:44:09,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:09,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:09,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:09,964 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:09,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:44:09,965 INFO L87 Difference]: Start difference. First operand 692 states and 1117 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 03:44:10,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:10,019 INFO L93 Difference]: Finished difference Result 1278 states and 2079 transitions. [2025-01-09 03:44:10,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:44:10,020 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 141 [2025-01-09 03:44:10,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:10,026 INFO L225 Difference]: With dead ends: 1278 [2025-01-09 03:44:10,026 INFO L226 Difference]: Without dead ends: 692 [2025-01-09 03:44:10,029 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 140 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 03:44:10,030 INFO L435 NwaCegarLoop]: 955 mSDtfsCounter, 13 mSDsluCounter, 1906 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2861 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 03:44:10,031 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2861 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:44:10,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2025-01-09 03:44:10,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 692. [2025-01-09 03:44:10,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 552 states have (on average 1.6304347826086956) internal successors, (900), 575 states have internal predecessors, (900), 107 states have call successors, (107), 29 states have call predecessors, (107), 32 states have return successors, (106), 100 states have call predecessors, (106), 102 states have call successors, (106) [2025-01-09 03:44:10,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1113 transitions. [2025-01-09 03:44:10,059 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1113 transitions. Word has length 141 [2025-01-09 03:44:10,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:10,059 INFO L471 AbstractCegarLoop]: Abstraction has 692 states and 1113 transitions. [2025-01-09 03:44:10,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 03:44:10,060 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1113 transitions. [2025-01-09 03:44:10,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-01-09 03:44:10,064 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:10,065 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] [2025-01-09 03:44:10,075 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 03:44:10,265 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 03:44:10,266 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:10,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:10,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1294718433, now seen corresponding path program 1 times [2025-01-09 03:44:10,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:10,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042375574] [2025-01-09 03:44:10,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:10,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:10,283 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-01-09 03:44:10,292 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-01-09 03:44:10,292 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:10,292 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:10,367 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-01-09 03:44:10,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:10,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042375574] [2025-01-09 03:44:10,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042375574] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:10,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946005612] [2025-01-09 03:44:10,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:10,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:10,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:10,371 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 03:44:10,373 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 03:44:10,525 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-01-09 03:44:10,689 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-01-09 03:44:10,689 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:10,689 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:10,695 INFO L256 TraceCheckSpWp]: Trace formula consists of 1862 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 03:44:10,698 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:10,772 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-01-09 03:44:10,772 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:10,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946005612] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:10,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:10,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4] total 10 [2025-01-09 03:44:10,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706966772] [2025-01-09 03:44:10,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:10,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:44:10,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:10,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:44:10,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:44:10,775 INFO L87 Difference]: Start difference. First operand 692 states and 1113 transitions. Second operand has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 03:44:10,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:10,901 INFO L93 Difference]: Finished difference Result 1238 states and 2013 transitions. [2025-01-09 03:44:10,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 03:44:10,902 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 142 [2025-01-09 03:44:10,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:10,908 INFO L225 Difference]: With dead ends: 1238 [2025-01-09 03:44:10,908 INFO L226 Difference]: Without dead ends: 724 [2025-01-09 03:44:10,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 138 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 03:44:10,911 INFO L435 NwaCegarLoop]: 943 mSDtfsCounter, 121 mSDsluCounter, 5561 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 6504 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 03:44:10,912 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 6504 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:44:10,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2025-01-09 03:44:10,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 692. [2025-01-09 03:44:10,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 552 states have (on average 1.6304347826086956) internal successors, (900), 575 states have internal predecessors, (900), 107 states have call successors, (107), 29 states have call predecessors, (107), 32 states have return successors, (106), 100 states have call predecessors, (106), 102 states have call successors, (106) [2025-01-09 03:44:10,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1113 transitions. [2025-01-09 03:44:10,938 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1113 transitions. Word has length 142 [2025-01-09 03:44:10,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:10,938 INFO L471 AbstractCegarLoop]: Abstraction has 692 states and 1113 transitions. [2025-01-09 03:44:10,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.428571428571429) internal successors, (94), 7 states have internal predecessors, (94), 3 states have call successors, (17), 2 states have call predecessors, (17), 4 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2025-01-09 03:44:10,938 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1113 transitions. [2025-01-09 03:44:10,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2025-01-09 03:44:10,944 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:10,944 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] [2025-01-09 03:44:10,955 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 03:44:11,144 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 03:44:11,145 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:11,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:11,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1969205532, now seen corresponding path program 1 times [2025-01-09 03:44:11,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:11,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503616606] [2025-01-09 03:44:11,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:11,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:11,169 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 143 statements into 1 equivalence classes. [2025-01-09 03:44:11,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 143 of 143 statements. [2025-01-09 03:44:11,175 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:11,175 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:11,249 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-01-09 03:44:11,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:11,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503616606] [2025-01-09 03:44:11,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503616606] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:11,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302052133] [2025-01-09 03:44:11,250 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:11,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:11,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:11,253 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 03:44:11,255 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 03:44:11,422 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 143 statements into 1 equivalence classes. [2025-01-09 03:44:11,605 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 143 of 143 statements. [2025-01-09 03:44:11,606 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:11,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:11,613 INFO L256 TraceCheckSpWp]: Trace formula consists of 1863 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 03:44:11,617 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:11,645 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-01-09 03:44:11,646 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:11,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302052133] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:11,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:11,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-01-09 03:44:11,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105906983] [2025-01-09 03:44:11,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:11,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:11,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:11,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:11,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:44:11,651 INFO L87 Difference]: Start difference. First operand 692 states and 1113 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 03:44:11,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:11,707 INFO L93 Difference]: Finished difference Result 1322 states and 2147 transitions. [2025-01-09 03:44:11,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:44:11,707 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 143 [2025-01-09 03:44:11,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:11,712 INFO L225 Difference]: With dead ends: 1322 [2025-01-09 03:44:11,713 INFO L226 Difference]: Without dead ends: 716 [2025-01-09 03:44:11,715 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 142 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 03:44:11,716 INFO L435 NwaCegarLoop]: 949 mSDtfsCounter, 6 mSDsluCounter, 1885 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2834 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 03:44:11,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2834 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:44:11,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2025-01-09 03:44:11,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2025-01-09 03:44:11,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 576 states have (on average 1.6111111111111112) internal successors, (928), 599 states have internal predecessors, (928), 107 states have call successors, (107), 29 states have call predecessors, (107), 32 states have return successors, (106), 100 states have call predecessors, (106), 102 states have call successors, (106) [2025-01-09 03:44:11,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 1141 transitions. [2025-01-09 03:44:11,745 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 1141 transitions. Word has length 143 [2025-01-09 03:44:11,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:11,746 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 1141 transitions. [2025-01-09 03:44:11,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-01-09 03:44:11,746 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 1141 transitions. [2025-01-09 03:44:11,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2025-01-09 03:44:11,751 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:11,751 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] [2025-01-09 03:44:11,763 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 03:44:11,952 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 03:44:11,953 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:11,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:11,953 INFO L85 PathProgramCache]: Analyzing trace with hash -523942072, now seen corresponding path program 1 times [2025-01-09 03:44:11,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:11,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287821941] [2025-01-09 03:44:11,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:11,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:11,969 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 143 statements into 1 equivalence classes. [2025-01-09 03:44:11,974 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 143 of 143 statements. [2025-01-09 03:44:11,975 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:11,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:12,044 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 03:44:12,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:12,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287821941] [2025-01-09 03:44:12,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287821941] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:12,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554744143] [2025-01-09 03:44:12,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:12,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:12,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:12,048 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 03:44:12,051 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 03:44:12,210 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 143 statements into 1 equivalence classes. [2025-01-09 03:44:12,389 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 143 of 143 statements. [2025-01-09 03:44:12,389 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:12,389 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:12,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 1866 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 03:44:12,398 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:12,511 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 03:44:12,512 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:12,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554744143] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:12,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:12,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2025-01-09 03:44:12,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861396794] [2025-01-09 03:44:12,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:12,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:44:12,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:12,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:44:12,514 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:44:12,514 INFO L87 Difference]: Start difference. First operand 716 states and 1141 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 03:44:13,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:13,038 INFO L93 Difference]: Finished difference Result 1233 states and 2016 transitions. [2025-01-09 03:44:13,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:44:13,039 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 143 [2025-01-09 03:44:13,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:13,044 INFO L225 Difference]: With dead ends: 1233 [2025-01-09 03:44:13,044 INFO L226 Difference]: Without dead ends: 724 [2025-01-09 03:44:13,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 141 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 03:44:13,047 INFO L435 NwaCegarLoop]: 947 mSDtfsCounter, 914 mSDsluCounter, 1490 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 2437 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:13,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [918 Valid, 2437 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 03:44:13,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states. [2025-01-09 03:44:13,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 724. [2025-01-09 03:44:13,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 583 states have (on average 1.6123499142367066) internal successors, (940), 606 states have internal predecessors, (940), 107 states have call successors, (107), 30 states have call predecessors, (107), 33 states have return successors, (107), 100 states have call predecessors, (107), 102 states have call successors, (107) [2025-01-09 03:44:13,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1154 transitions. [2025-01-09 03:44:13,078 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1154 transitions. Word has length 143 [2025-01-09 03:44:13,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:13,078 INFO L471 AbstractCegarLoop]: Abstraction has 724 states and 1154 transitions. [2025-01-09 03:44:13,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 03:44:13,078 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1154 transitions. [2025-01-09 03:44:13,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2025-01-09 03:44:13,083 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:13,083 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] [2025-01-09 03:44:13,094 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-01-09 03:44:13,284 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 03:44:13,285 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:13,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:13,285 INFO L85 PathProgramCache]: Analyzing trace with hash -839793272, now seen corresponding path program 1 times [2025-01-09 03:44:13,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:13,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65435521] [2025-01-09 03:44:13,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:13,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:13,302 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 145 statements into 1 equivalence classes. [2025-01-09 03:44:13,307 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 145 of 145 statements. [2025-01-09 03:44:13,308 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:13,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:13,377 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 03:44:13,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:13,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65435521] [2025-01-09 03:44:13,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65435521] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:13,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [658786045] [2025-01-09 03:44:13,378 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:13,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:13,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:13,380 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 03:44:13,382 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 03:44:13,557 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 145 statements into 1 equivalence classes. [2025-01-09 03:44:13,720 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 145 of 145 statements. [2025-01-09 03:44:13,721 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:13,721 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:13,726 INFO L256 TraceCheckSpWp]: Trace formula consists of 1868 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 03:44:13,729 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:13,842 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 03:44:13,842 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:13,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [658786045] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:13,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:13,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2025-01-09 03:44:13,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108601893] [2025-01-09 03:44:13,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:13,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:44:13,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:13,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:44:13,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:44:13,844 INFO L87 Difference]: Start difference. First operand 724 states and 1154 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 03:44:14,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:14,319 INFO L93 Difference]: Finished difference Result 1249 states and 2039 transitions. [2025-01-09 03:44:14,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:44:14,319 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 145 [2025-01-09 03:44:14,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:14,324 INFO L225 Difference]: With dead ends: 1249 [2025-01-09 03:44:14,324 INFO L226 Difference]: Without dead ends: 732 [2025-01-09 03:44:14,327 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 143 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 03:44:14,327 INFO L435 NwaCegarLoop]: 944 mSDtfsCounter, 911 mSDsluCounter, 1490 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 918 SdHoareTripleChecker+Valid, 2434 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:14,327 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [918 Valid, 2434 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 03:44:14,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2025-01-09 03:44:14,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 732. [2025-01-09 03:44:14,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 590 states have (on average 1.6135593220338984) internal successors, (952), 613 states have internal predecessors, (952), 107 states have call successors, (107), 31 states have call predecessors, (107), 34 states have return successors, (108), 100 states have call predecessors, (108), 102 states have call successors, (108) [2025-01-09 03:44:14,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1167 transitions. [2025-01-09 03:44:14,351 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1167 transitions. Word has length 145 [2025-01-09 03:44:14,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:14,351 INFO L471 AbstractCegarLoop]: Abstraction has 732 states and 1167 transitions. [2025-01-09 03:44:14,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 03:44:14,352 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1167 transitions. [2025-01-09 03:44:14,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-01-09 03:44:14,356 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:14,356 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] [2025-01-09 03:44:14,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2025-01-09 03:44:14,556 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 03:44:14,556 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:14,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:14,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1061632312, now seen corresponding path program 1 times [2025-01-09 03:44:14,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:14,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668392961] [2025-01-09 03:44:14,557 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:14,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:14,571 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-01-09 03:44:14,576 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-01-09 03:44:14,576 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:14,576 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:14,641 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 03:44:14,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:14,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668392961] [2025-01-09 03:44:14,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668392961] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:14,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825353159] [2025-01-09 03:44:14,642 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:14,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:14,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:14,644 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 03:44:14,646 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 03:44:14,815 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-01-09 03:44:14,971 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-01-09 03:44:14,971 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:14,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:14,976 INFO L256 TraceCheckSpWp]: Trace formula consists of 1870 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 03:44:14,980 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:15,080 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 03:44:15,081 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:15,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825353159] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:15,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:15,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2025-01-09 03:44:15,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028921207] [2025-01-09 03:44:15,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:15,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:44:15,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:15,082 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:44:15,082 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:44:15,082 INFO L87 Difference]: Start difference. First operand 732 states and 1167 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 03:44:15,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:15,536 INFO L93 Difference]: Finished difference Result 1265 states and 2062 transitions. [2025-01-09 03:44:15,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:44:15,536 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2025-01-09 03:44:15,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:15,541 INFO L225 Difference]: With dead ends: 1265 [2025-01-09 03:44:15,541 INFO L226 Difference]: Without dead ends: 740 [2025-01-09 03:44:15,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 145 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 03:44:15,543 INFO L435 NwaCegarLoop]: 941 mSDtfsCounter, 905 mSDsluCounter, 1490 mSDsCounter, 0 mSdLazyCounter, 464 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 2431 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:15,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [915 Valid, 2431 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 464 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 03:44:15,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2025-01-09 03:44:15,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 740. [2025-01-09 03:44:15,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 597 states have (on average 1.6147403685092128) internal successors, (964), 620 states have internal predecessors, (964), 107 states have call successors, (107), 32 states have call predecessors, (107), 35 states have return successors, (109), 100 states have call predecessors, (109), 102 states have call successors, (109) [2025-01-09 03:44:15,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 1180 transitions. [2025-01-09 03:44:15,567 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 1180 transitions. Word has length 147 [2025-01-09 03:44:15,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:15,568 INFO L471 AbstractCegarLoop]: Abstraction has 740 states and 1180 transitions. [2025-01-09 03:44:15,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 03:44:15,568 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 1180 transitions. [2025-01-09 03:44:15,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2025-01-09 03:44:15,572 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:15,572 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] [2025-01-09 03:44:15,582 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-01-09 03:44:15,772 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 03:44:15,773 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:15,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:15,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1106034320, now seen corresponding path program 1 times [2025-01-09 03:44:15,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:15,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326696392] [2025-01-09 03:44:15,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:15,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:15,786 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-01-09 03:44:15,793 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-01-09 03:44:15,794 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:15,794 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:15,859 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 03:44:15,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:15,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326696392] [2025-01-09 03:44:15,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326696392] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:15,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587581098] [2025-01-09 03:44:15,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:15,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:15,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:15,862 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 03:44:15,865 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 03:44:16,040 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 149 statements into 1 equivalence classes. [2025-01-09 03:44:16,228 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 149 of 149 statements. [2025-01-09 03:44:16,228 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:16,228 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:16,234 INFO L256 TraceCheckSpWp]: Trace formula consists of 1872 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 03:44:16,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:16,357 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 03:44:16,357 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:16,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587581098] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:16,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:16,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2025-01-09 03:44:16,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035722403] [2025-01-09 03:44:16,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:16,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:44:16,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:16,359 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:44:16,359 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:44:16,360 INFO L87 Difference]: Start difference. First operand 740 states and 1180 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 03:44:16,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:16,780 INFO L93 Difference]: Finished difference Result 1281 states and 2085 transitions. [2025-01-09 03:44:16,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:44:16,780 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 149 [2025-01-09 03:44:16,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:16,786 INFO L225 Difference]: With dead ends: 1281 [2025-01-09 03:44:16,786 INFO L226 Difference]: Without dead ends: 748 [2025-01-09 03:44:16,787 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 147 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 03:44:16,788 INFO L435 NwaCegarLoop]: 938 mSDtfsCounter, 883 mSDsluCounter, 1490 mSDsCounter, 0 mSdLazyCounter, 463 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 2428 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 463 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:16,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [896 Valid, 2428 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 463 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 03:44:16,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2025-01-09 03:44:16,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 748. [2025-01-09 03:44:16,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 604 states have (on average 1.6158940397350994) internal successors, (976), 627 states have internal predecessors, (976), 107 states have call successors, (107), 33 states have call predecessors, (107), 36 states have return successors, (110), 100 states have call predecessors, (110), 102 states have call successors, (110) [2025-01-09 03:44:16,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1193 transitions. [2025-01-09 03:44:16,813 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1193 transitions. Word has length 149 [2025-01-09 03:44:16,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:16,813 INFO L471 AbstractCegarLoop]: Abstraction has 748 states and 1193 transitions. [2025-01-09 03:44:16,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-01-09 03:44:16,814 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1193 transitions. [2025-01-09 03:44:16,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2025-01-09 03:44:16,817 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:16,817 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] [2025-01-09 03:44:16,829 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-01-09 03:44:17,018 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 03:44:17,018 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:17,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:17,018 INFO L85 PathProgramCache]: Analyzing trace with hash -868685752, now seen corresponding path program 1 times [2025-01-09 03:44:17,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:17,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551150633] [2025-01-09 03:44:17,019 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:17,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:17,030 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 151 statements into 1 equivalence classes. [2025-01-09 03:44:17,034 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 151 of 151 statements. [2025-01-09 03:44:17,035 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:17,035 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:17,099 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 03:44:17,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:17,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551150633] [2025-01-09 03:44:17,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551150633] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:17,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391084978] [2025-01-09 03:44:17,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:17,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:17,100 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:17,104 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 03:44:17,105 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 03:44:17,282 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 151 statements into 1 equivalence classes. [2025-01-09 03:44:17,450 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 151 of 151 statements. [2025-01-09 03:44:17,450 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:17,450 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:17,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 1874 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 03:44:17,460 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:17,640 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 03:44:17,640 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:17,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [391084978] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:17,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:17,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2025-01-09 03:44:17,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378012923] [2025-01-09 03:44:17,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:17,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:44:17,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:17,641 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:44:17,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:44:17,641 INFO L87 Difference]: Start difference. First operand 748 states and 1193 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2025-01-09 03:44:17,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:17,979 INFO L93 Difference]: Finished difference Result 796 states and 1264 transitions. [2025-01-09 03:44:17,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:44:17,979 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) Word has length 151 [2025-01-09 03:44:17,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:17,997 INFO L225 Difference]: With dead ends: 796 [2025-01-09 03:44:17,997 INFO L226 Difference]: Without dead ends: 781 [2025-01-09 03:44:17,998 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 149 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 03:44:17,998 INFO L435 NwaCegarLoop]: 955 mSDtfsCounter, 889 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 897 SdHoareTripleChecker+Valid, 1742 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:17,999 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [897 Valid, 1742 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 03:44:18,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2025-01-09 03:44:18,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 750. [2025-01-09 03:44:18,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 606 states have (on average 1.613861386138614) internal successors, (978), 629 states have internal predecessors, (978), 107 states have call successors, (107), 33 states have call predecessors, (107), 36 states have return successors, (110), 100 states have call predecessors, (110), 102 states have call successors, (110) [2025-01-09 03:44:18,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1195 transitions. [2025-01-09 03:44:18,028 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1195 transitions. Word has length 151 [2025-01-09 03:44:18,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:18,028 INFO L471 AbstractCegarLoop]: Abstraction has 750 states and 1195 transitions. [2025-01-09 03:44:18,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (16), 2 states have call predecessors, (16), 1 states have call successors, (16) [2025-01-09 03:44:18,033 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1195 transitions. [2025-01-09 03:44:18,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2025-01-09 03:44:18,036 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:18,036 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] [2025-01-09 03:44:18,052 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 03:44:18,237 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 03:44:18,237 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:18,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:18,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1912890147, now seen corresponding path program 1 times [2025-01-09 03:44:18,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:18,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265587305] [2025-01-09 03:44:18,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:18,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:18,254 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 157 statements into 1 equivalence classes. [2025-01-09 03:44:18,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 157 of 157 statements. [2025-01-09 03:44:18,259 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:18,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:18,329 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 03:44:18,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:18,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265587305] [2025-01-09 03:44:18,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265587305] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:18,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952336864] [2025-01-09 03:44:18,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:18,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:18,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:18,332 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 03:44:18,334 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 03:44:18,519 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 157 statements into 1 equivalence classes. [2025-01-09 03:44:18,674 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 157 of 157 statements. [2025-01-09 03:44:18,674 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:18,674 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:18,680 INFO L256 TraceCheckSpWp]: Trace formula consists of 1890 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 03:44:18,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:18,710 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 03:44:18,710 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:18,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952336864] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:18,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:18,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2025-01-09 03:44:18,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520468382] [2025-01-09 03:44:18,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:18,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:44:18,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:18,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:44:18,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:44:18,712 INFO L87 Difference]: Start difference. First operand 750 states and 1195 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 1 states have call successors, (17) [2025-01-09 03:44:18,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:18,737 INFO L93 Difference]: Finished difference Result 765 states and 1213 transitions. [2025-01-09 03:44:18,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:44:18,737 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 1 states have call successors, (17) Word has length 157 [2025-01-09 03:44:18,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:18,743 INFO L225 Difference]: With dead ends: 765 [2025-01-09 03:44:18,743 INFO L226 Difference]: Without dead ends: 750 [2025-01-09 03:44:18,744 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:44:18,745 INFO L435 NwaCegarLoop]: 962 mSDtfsCounter, 0 mSDsluCounter, 2882 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3844 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:18,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3844 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:44:18,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2025-01-09 03:44:18,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2025-01-09 03:44:18,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 606 states have (on average 1.6122112211221122) internal successors, (977), 629 states have internal predecessors, (977), 107 states have call successors, (107), 33 states have call predecessors, (107), 36 states have return successors, (110), 100 states have call predecessors, (110), 102 states have call successors, (110) [2025-01-09 03:44:18,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1194 transitions. [2025-01-09 03:44:18,770 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1194 transitions. Word has length 157 [2025-01-09 03:44:18,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:18,770 INFO L471 AbstractCegarLoop]: Abstraction has 750 states and 1194 transitions. [2025-01-09 03:44:18,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 1 states have call successors, (17) [2025-01-09 03:44:18,771 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1194 transitions. [2025-01-09 03:44:18,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2025-01-09 03:44:18,773 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:18,774 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] [2025-01-09 03:44:18,785 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 03:44:18,974 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 03:44:18,974 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:18,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:18,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1590717500, now seen corresponding path program 1 times [2025-01-09 03:44:18,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:18,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880651987] [2025-01-09 03:44:18,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:18,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:18,990 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-01-09 03:44:18,995 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-01-09 03:44:18,996 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:18,996 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:19,088 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 03:44:19,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:19,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880651987] [2025-01-09 03:44:19,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880651987] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:19,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880680075] [2025-01-09 03:44:19,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:19,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:19,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:19,091 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 03:44:19,093 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 03:44:19,280 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-01-09 03:44:19,469 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-01-09 03:44:19,469 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:19,469 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:19,478 INFO L256 TraceCheckSpWp]: Trace formula consists of 1927 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 03:44:19,483 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:19,499 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 03:44:19,499 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:19,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880680075] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:19,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:19,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2025-01-09 03:44:19,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350940143] [2025-01-09 03:44:19,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:19,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:19,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:19,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:19,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:44:19,501 INFO L87 Difference]: Start difference. First operand 750 states and 1194 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2025-01-09 03:44:19,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:19,553 INFO L93 Difference]: Finished difference Result 1474 states and 2358 transitions. [2025-01-09 03:44:19,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:44:19,554 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) Word has length 168 [2025-01-09 03:44:19,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:19,559 INFO L225 Difference]: With dead ends: 1474 [2025-01-09 03:44:19,559 INFO L226 Difference]: Without dead ends: 719 [2025-01-09 03:44:19,562 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 169 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 03:44:19,563 INFO L435 NwaCegarLoop]: 956 mSDtfsCounter, 7 mSDsluCounter, 1905 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2861 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 03:44:19,563 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2861 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:44:19,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2025-01-09 03:44:19,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 719. [2025-01-09 03:44:19,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 719 states, 578 states have (on average 1.6107266435986158) internal successors, (931), 599 states have internal predecessors, (931), 106 states have call successors, (106), 33 states have call predecessors, (106), 34 states have return successors, (107), 99 states have call predecessors, (107), 101 states have call successors, (107) [2025-01-09 03:44:19,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 719 states to 719 states and 1144 transitions. [2025-01-09 03:44:19,595 INFO L78 Accepts]: Start accepts. Automaton has 719 states and 1144 transitions. Word has length 168 [2025-01-09 03:44:19,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:19,595 INFO L471 AbstractCegarLoop]: Abstraction has 719 states and 1144 transitions. [2025-01-09 03:44:19,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 1 states have call predecessors, (18), 2 states have call successors, (18) [2025-01-09 03:44:19,596 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states and 1144 transitions. [2025-01-09 03:44:19,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2025-01-09 03:44:19,599 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:19,600 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] [2025-01-09 03:44:19,612 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2025-01-09 03:44:19,800 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 03:44:19,800 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:19,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:19,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1829642481, now seen corresponding path program 1 times [2025-01-09 03:44:19,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:19,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817094869] [2025-01-09 03:44:19,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:19,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:19,818 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-01-09 03:44:19,824 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-01-09 03:44:19,824 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:19,824 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:19,987 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 03:44:19,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:19,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817094869] [2025-01-09 03:44:19,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817094869] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:19,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472489597] [2025-01-09 03:44:19,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:19,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:19,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:19,990 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 03:44:19,993 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 03:44:20,155 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-01-09 03:44:20,333 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-01-09 03:44:20,333 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:20,333 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:20,339 INFO L256 TraceCheckSpWp]: Trace formula consists of 1930 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-09 03:44:20,343 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:20,369 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 03:44:20,370 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:20,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472489597] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:20,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:20,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 7 [2025-01-09 03:44:20,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585323494] [2025-01-09 03:44:20,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:20,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:44:20,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:20,371 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:44:20,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:44:20,372 INFO L87 Difference]: Start difference. First operand 719 states and 1144 transitions. Second operand has 7 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2025-01-09 03:44:20,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:20,445 INFO L93 Difference]: Finished difference Result 1407 states and 2252 transitions. [2025-01-09 03:44:20,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:44:20,446 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 170 [2025-01-09 03:44:20,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:20,451 INFO L225 Difference]: With dead ends: 1407 [2025-01-09 03:44:20,451 INFO L226 Difference]: Without dead ends: 719 [2025-01-09 03:44:20,454 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 171 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 03:44:20,455 INFO L435 NwaCegarLoop]: 954 mSDtfsCounter, 119 mSDsluCounter, 4664 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 5618 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:20,455 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 5618 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:44:20,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 719 states. [2025-01-09 03:44:20,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 719 to 698. [2025-01-09 03:44:20,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 557 states have (on average 1.6104129263913824) internal successors, (897), 578 states have internal predecessors, (897), 106 states have call successors, (106), 33 states have call predecessors, (106), 34 states have return successors, (107), 99 states have call predecessors, (107), 101 states have call successors, (107) [2025-01-09 03:44:20,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1110 transitions. [2025-01-09 03:44:20,487 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1110 transitions. Word has length 170 [2025-01-09 03:44:20,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:20,487 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 1110 transitions. [2025-01-09 03:44:20,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 3 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2025-01-09 03:44:20,487 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1110 transitions. [2025-01-09 03:44:20,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2025-01-09 03:44:20,491 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:20,491 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] [2025-01-09 03:44:20,502 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 03:44:20,691 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 03:44:20,692 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:20,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:20,692 INFO L85 PathProgramCache]: Analyzing trace with hash -573217578, now seen corresponding path program 1 times [2025-01-09 03:44:20,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:20,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031281419] [2025-01-09 03:44:20,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:20,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:20,708 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 172 statements into 1 equivalence classes. [2025-01-09 03:44:20,714 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 172 of 172 statements. [2025-01-09 03:44:20,716 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:20,716 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:20,838 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 03:44:20,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:20,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031281419] [2025-01-09 03:44:20,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031281419] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:20,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1679568770] [2025-01-09 03:44:20,839 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:20,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:20,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:20,841 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 03:44:20,844 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 03:44:21,032 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 172 statements into 1 equivalence classes. [2025-01-09 03:44:21,194 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 172 of 172 statements. [2025-01-09 03:44:21,195 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:21,195 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:21,202 INFO L256 TraceCheckSpWp]: Trace formula consists of 1936 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:44:21,205 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:21,238 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 03:44:21,238 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:21,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1679568770] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:21,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:21,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2025-01-09 03:44:21,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017632736] [2025-01-09 03:44:21,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:21,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:21,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:21,239 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:21,240 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:44:21,240 INFO L87 Difference]: Start difference. First operand 698 states and 1110 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-01-09 03:44:21,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:21,334 INFO L93 Difference]: Finished difference Result 1389 states and 2222 transitions. [2025-01-09 03:44:21,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:44:21,337 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 172 [2025-01-09 03:44:21,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:21,343 INFO L225 Difference]: With dead ends: 1389 [2025-01-09 03:44:21,343 INFO L226 Difference]: Without dead ends: 722 [2025-01-09 03:44:21,346 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 172 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 03:44:21,346 INFO L435 NwaCegarLoop]: 939 mSDtfsCounter, 128 mSDsluCounter, 1801 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 2740 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 03:44:21,347 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 2740 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:44:21,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2025-01-09 03:44:21,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 698. [2025-01-09 03:44:21,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 557 states have (on average 1.6086175942549372) internal successors, (896), 578 states have internal predecessors, (896), 106 states have call successors, (106), 33 states have call predecessors, (106), 34 states have return successors, (107), 99 states have call predecessors, (107), 101 states have call successors, (107) [2025-01-09 03:44:21,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1109 transitions. [2025-01-09 03:44:21,372 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1109 transitions. Word has length 172 [2025-01-09 03:44:21,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:21,372 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 1109 transitions. [2025-01-09 03:44:21,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 2 states have call successors, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-01-09 03:44:21,372 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1109 transitions. [2025-01-09 03:44:21,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2025-01-09 03:44:21,376 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:21,376 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] [2025-01-09 03:44:21,387 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 03:44:21,576 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 03:44:21,577 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:21,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:21,578 INFO L85 PathProgramCache]: Analyzing trace with hash 31626271, now seen corresponding path program 1 times [2025-01-09 03:44:21,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:21,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [73700321] [2025-01-09 03:44:21,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:21,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:21,593 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 173 statements into 1 equivalence classes. [2025-01-09 03:44:21,602 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 173 of 173 statements. [2025-01-09 03:44:21,605 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:21,605 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:21,675 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 03:44:21,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:21,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [73700321] [2025-01-09 03:44:21,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [73700321] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:21,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:44:21,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:44:21,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369089071] [2025-01-09 03:44:21,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:21,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:21,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:21,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:21,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:44:21,678 INFO L87 Difference]: Start difference. First operand 698 states and 1109 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, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-01-09 03:44:21,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:21,719 INFO L93 Difference]: Finished difference Result 1324 states and 2131 transitions. [2025-01-09 03:44:21,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:44:21,720 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, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 173 [2025-01-09 03:44:21,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:21,727 INFO L225 Difference]: With dead ends: 1324 [2025-01-09 03:44:21,727 INFO L226 Difference]: Without dead ends: 658 [2025-01-09 03:44:21,730 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 03:44:21,730 INFO L435 NwaCegarLoop]: 954 mSDtfsCounter, 8 mSDsluCounter, 1904 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2858 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 03:44:21,730 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2858 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:44:21,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2025-01-09 03:44:21,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 658. [2025-01-09 03:44:21,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 520 states have (on average 1.601923076923077) internal successors, (833), 539 states have internal predecessors, (833), 105 states have call successors, (105), 33 states have call predecessors, (105), 32 states have return successors, (104), 98 states have call predecessors, (104), 100 states have call successors, (104) [2025-01-09 03:44:21,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 1042 transitions. [2025-01-09 03:44:21,751 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 1042 transitions. Word has length 173 [2025-01-09 03:44:21,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:21,751 INFO L471 AbstractCegarLoop]: Abstraction has 658 states and 1042 transitions. [2025-01-09 03:44:21,751 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, (19), 2 states have call predecessors, (19), 3 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2025-01-09 03:44:21,751 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 1042 transitions. [2025-01-09 03:44:21,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2025-01-09 03:44:21,754 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:21,754 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] [2025-01-09 03:44:21,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-01-09 03:44:21,754 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:21,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:21,755 INFO L85 PathProgramCache]: Analyzing trace with hash 52035985, now seen corresponding path program 1 times [2025-01-09 03:44:21,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:21,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35601669] [2025-01-09 03:44:21,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:21,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:21,772 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 174 statements into 1 equivalence classes. [2025-01-09 03:44:21,782 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 174 of 174 statements. [2025-01-09 03:44:21,783 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:21,783 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:21,911 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 03:44:21,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:21,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35601669] [2025-01-09 03:44:21,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35601669] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:21,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:44:21,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 03:44:21,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904394459] [2025-01-09 03:44:21,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:21,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:44:21,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:21,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:44:21,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:44:21,913 INFO L87 Difference]: Start difference. First operand 658 states and 1042 transitions. Second operand has 7 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2025-01-09 03:44:21,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:21,977 INFO L93 Difference]: Finished difference Result 1227 states and 1970 transitions. [2025-01-09 03:44:21,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:44:21,978 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 174 [2025-01-09 03:44:21,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:21,983 INFO L225 Difference]: With dead ends: 1227 [2025-01-09 03:44:21,983 INFO L226 Difference]: Without dead ends: 644 [2025-01-09 03:44:21,985 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 03:44:21,988 INFO L435 NwaCegarLoop]: 937 mSDtfsCounter, 88 mSDsluCounter, 4607 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 5544 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 03:44:21,988 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 5544 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:44:21,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2025-01-09 03:44:22,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 644. [2025-01-09 03:44:22,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 506 states have (on average 1.5968379446640317) internal successors, (808), 525 states have internal predecessors, (808), 105 states have call successors, (105), 33 states have call predecessors, (105), 32 states have return successors, (104), 98 states have call predecessors, (104), 100 states have call successors, (104) [2025-01-09 03:44:22,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 1017 transitions. [2025-01-09 03:44:22,025 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 1017 transitions. Word has length 174 [2025-01-09 03:44:22,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:22,025 INFO L471 AbstractCegarLoop]: Abstraction has 644 states and 1017 transitions. [2025-01-09 03:44:22,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2025-01-09 03:44:22,026 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 1017 transitions. [2025-01-09 03:44:22,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2025-01-09 03:44:22,028 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:22,029 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] [2025-01-09 03:44:22,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-01-09 03:44:22,029 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:22,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:22,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1450263369, now seen corresponding path program 1 times [2025-01-09 03:44:22,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:22,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944910928] [2025-01-09 03:44:22,030 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:22,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:22,045 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 175 statements into 1 equivalence classes. [2025-01-09 03:44:22,054 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 175 of 175 statements. [2025-01-09 03:44:22,054 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:22,055 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:22,307 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 03:44:22,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:22,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944910928] [2025-01-09 03:44:22,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944910928] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:22,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:44:22,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-01-09 03:44:22,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258496145] [2025-01-09 03:44:22,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:22,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 03:44:22,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:22,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 03:44:22,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:44:22,309 INFO L87 Difference]: Start difference. First operand 644 states and 1017 transitions. Second operand has 10 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2025-01-09 03:44:22,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:22,470 INFO L93 Difference]: Finished difference Result 1254 states and 1998 transitions. [2025-01-09 03:44:22,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-09 03:44:22,471 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 175 [2025-01-09 03:44:22,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:22,477 INFO L225 Difference]: With dead ends: 1254 [2025-01-09 03:44:22,477 INFO L226 Difference]: Without dead ends: 635 [2025-01-09 03:44:22,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 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 03:44:22,481 INFO L435 NwaCegarLoop]: 897 mSDtfsCounter, 45 mSDsluCounter, 6236 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 7133 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:22,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 7133 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:44:22,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 635 states. [2025-01-09 03:44:22,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 635 to 635. [2025-01-09 03:44:22,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 497 states have (on average 1.595573440643863) internal successors, (793), 516 states have internal predecessors, (793), 105 states have call successors, (105), 33 states have call predecessors, (105), 32 states have return successors, (104), 98 states have call predecessors, (104), 100 states have call successors, (104) [2025-01-09 03:44:22,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 1002 transitions. [2025-01-09 03:44:22,504 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 1002 transitions. Word has length 175 [2025-01-09 03:44:22,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:22,504 INFO L471 AbstractCegarLoop]: Abstraction has 635 states and 1002 transitions. [2025-01-09 03:44:22,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.333333333333334) internal successors, (120), 9 states have internal predecessors, (120), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2025-01-09 03:44:22,504 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 1002 transitions. [2025-01-09 03:44:22,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-01-09 03:44:22,507 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:22,508 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] [2025-01-09 03:44:22,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2025-01-09 03:44:22,508 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:22,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:22,509 INFO L85 PathProgramCache]: Analyzing trace with hash -638817510, now seen corresponding path program 1 times [2025-01-09 03:44:22,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:22,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933469638] [2025-01-09 03:44:22,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:22,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:22,525 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-01-09 03:44:22,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-01-09 03:44:22,556 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:22,556 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:22,806 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 03:44:22,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:22,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933469638] [2025-01-09 03:44:22,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933469638] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:22,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:44:22,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-01-09 03:44:22,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455049690] [2025-01-09 03:44:22,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:22,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-01-09 03:44:22,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:22,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-01-09 03:44:22,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:44:22,809 INFO L87 Difference]: Start difference. First operand 635 states and 1002 transitions. Second operand has 10 states, 9 states have (on average 13.444444444444445) internal successors, (121), 9 states have internal predecessors, (121), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2025-01-09 03:44:22,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:22,940 INFO L93 Difference]: Finished difference Result 1186 states and 1904 transitions. [2025-01-09 03:44:22,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 03:44:22,941 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 13.444444444444445) internal successors, (121), 9 states have internal predecessors, (121), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 176 [2025-01-09 03:44:22,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:22,946 INFO L225 Difference]: With dead ends: 1186 [2025-01-09 03:44:22,946 INFO L226 Difference]: Without dead ends: 629 [2025-01-09 03:44:22,949 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 03:44:22,950 INFO L435 NwaCegarLoop]: 906 mSDtfsCounter, 31 mSDsluCounter, 6298 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 7204 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 03:44:22,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 7204 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:44:22,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2025-01-09 03:44:22,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 629. [2025-01-09 03:44:22,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 629 states, 491 states have (on average 1.6008146639511203) internal successors, (786), 510 states have internal predecessors, (786), 105 states have call successors, (105), 33 states have call predecessors, (105), 32 states have return successors, (104), 98 states have call predecessors, (104), 100 states have call successors, (104) [2025-01-09 03:44:22,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 995 transitions. [2025-01-09 03:44:22,972 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 995 transitions. Word has length 176 [2025-01-09 03:44:22,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:22,973 INFO L471 AbstractCegarLoop]: Abstraction has 629 states and 995 transitions. [2025-01-09 03:44:22,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 13.444444444444445) internal successors, (121), 9 states have internal predecessors, (121), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2025-01-09 03:44:22,973 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 995 transitions. [2025-01-09 03:44:22,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2025-01-09 03:44:22,976 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:22,976 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] [2025-01-09 03:44:22,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-01-09 03:44:22,976 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:22,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:22,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1654884568, now seen corresponding path program 1 times [2025-01-09 03:44:22,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:22,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013920847] [2025-01-09 03:44:22,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:22,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:22,991 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-01-09 03:44:23,002 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-01-09 03:44:23,004 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:23,005 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:23,342 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 03:44:23,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:23,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013920847] [2025-01-09 03:44:23,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013920847] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:23,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538230458] [2025-01-09 03:44:23,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:23,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:23,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:23,347 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 03:44:23,349 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 03:44:23,525 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 176 statements into 1 equivalence classes. [2025-01-09 03:44:23,690 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 176 of 176 statements. [2025-01-09 03:44:23,690 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:23,691 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:23,696 INFO L256 TraceCheckSpWp]: Trace formula consists of 1941 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-01-09 03:44:23,700 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:23,870 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 03:44:23,871 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:23,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538230458] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:23,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:23,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2025-01-09 03:44:23,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777200697] [2025-01-09 03:44:23,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:23,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:44:23,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:23,872 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:44:23,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2025-01-09 03:44:23,872 INFO L87 Difference]: Start difference. First operand 629 states and 995 transitions. Second operand has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 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 03:44:26,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:26,193 INFO L93 Difference]: Finished difference Result 1898 states and 3099 transitions. [2025-01-09 03:44:26,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-01-09 03:44:26,193 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 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 176 [2025-01-09 03:44:26,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:26,204 INFO L225 Difference]: With dead ends: 1898 [2025-01-09 03:44:26,204 INFO L226 Difference]: Without dead ends: 1355 [2025-01-09 03:44:26,206 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2025-01-09 03:44:26,207 INFO L435 NwaCegarLoop]: 486 mSDtfsCounter, 2221 mSDsluCounter, 1553 mSDsCounter, 0 mSdLazyCounter, 3651 mSolverCounterSat, 508 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2311 SdHoareTripleChecker+Valid, 2039 SdHoareTripleChecker+Invalid, 4159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 508 IncrementalHoareTripleChecker+Valid, 3651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:26,207 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2311 Valid, 2039 Invalid, 4159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [508 Valid, 3651 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-01-09 03:44:26,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1355 states. [2025-01-09 03:44:26,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1355 to 1267. [2025-01-09 03:44:26,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1267 states, 985 states have (on average 1.6233502538071065) internal successors, (1599), 1022 states have internal predecessors, (1599), 215 states have call successors, (215), 61 states have call predecessors, (215), 66 states have return successors, (241), 208 states have call predecessors, (241), 210 states have call successors, (241) [2025-01-09 03:44:26,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1267 states to 1267 states and 2055 transitions. [2025-01-09 03:44:26,255 INFO L78 Accepts]: Start accepts. Automaton has 1267 states and 2055 transitions. Word has length 176 [2025-01-09 03:44:26,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:26,256 INFO L471 AbstractCegarLoop]: Abstraction has 1267 states and 2055 transitions. [2025-01-09 03:44:26,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.571428571428571) internal successors, (109), 7 states have internal predecessors, (109), 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 03:44:26,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1267 states and 2055 transitions. [2025-01-09 03:44:26,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2025-01-09 03:44:26,259 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:26,259 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 03:44:26,286 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 03:44:26,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,27 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:26,461 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:26,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:26,462 INFO L85 PathProgramCache]: Analyzing trace with hash -545215011, now seen corresponding path program 1 times [2025-01-09 03:44:26,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:26,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582168500] [2025-01-09 03:44:26,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:26,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:26,478 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 181 statements into 1 equivalence classes. [2025-01-09 03:44:26,493 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 181 of 181 statements. [2025-01-09 03:44:26,493 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:26,493 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:26,818 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 03:44:26,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:26,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582168500] [2025-01-09 03:44:26,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582168500] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:26,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127301892] [2025-01-09 03:44:26,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:26,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:26,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:26,822 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 03:44:26,824 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 03:44:27,017 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 181 statements into 1 equivalence classes. [2025-01-09 03:44:27,179 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 181 of 181 statements. [2025-01-09 03:44:27,179 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:27,179 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:27,185 INFO L256 TraceCheckSpWp]: Trace formula consists of 1958 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 03:44:27,188 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:27,198 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 03:44:27,198 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:27,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127301892] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:27,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:27,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2025-01-09 03:44:27,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126213707] [2025-01-09 03:44:27,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:27,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:44:27,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:27,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:44:27,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:44:27,200 INFO L87 Difference]: Start difference. First operand 1267 states and 2055 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-01-09 03:44:27,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:27,289 INFO L93 Difference]: Finished difference Result 3010 states and 4959 transitions. [2025-01-09 03:44:27,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:44:27,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 181 [2025-01-09 03:44:27,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:27,303 INFO L225 Difference]: With dead ends: 3010 [2025-01-09 03:44:27,303 INFO L226 Difference]: Without dead ends: 1832 [2025-01-09 03:44:27,308 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 191 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 03:44:27,308 INFO L435 NwaCegarLoop]: 1624 mSDtfsCounter, 830 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 2536 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 03:44:27,309 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 2536 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:44:27,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1832 states. [2025-01-09 03:44:27,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1832 to 1265. [2025-01-09 03:44:27,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 984 states have (on average 1.6229674796747968) internal successors, (1597), 1020 states have internal predecessors, (1597), 215 states have call successors, (215), 61 states have call predecessors, (215), 65 states have return successors, (235), 208 states have call predecessors, (235), 210 states have call successors, (235) [2025-01-09 03:44:27,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 2047 transitions. [2025-01-09 03:44:27,361 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 2047 transitions. Word has length 181 [2025-01-09 03:44:27,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:27,361 INFO L471 AbstractCegarLoop]: Abstraction has 1265 states and 2047 transitions. [2025-01-09 03:44:27,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-01-09 03:44:27,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 2047 transitions. [2025-01-09 03:44:27,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2025-01-09 03:44:27,365 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:27,365 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 03:44:27,377 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 03:44:27,565 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,SelfDestructingSolverStorable30 [2025-01-09 03:44:27,566 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:27,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:27,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1442608289, now seen corresponding path program 1 times [2025-01-09 03:44:27,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:27,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29582551] [2025-01-09 03:44:27,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:27,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:27,582 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 181 statements into 1 equivalence classes. [2025-01-09 03:44:27,593 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 181 of 181 statements. [2025-01-09 03:44:27,593 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:27,593 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:27,928 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 03:44:27,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:27,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29582551] [2025-01-09 03:44:27,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29582551] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:27,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427060338] [2025-01-09 03:44:27,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:27,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:27,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:27,931 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 03:44:27,933 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 03:44:28,103 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 181 statements into 1 equivalence classes. [2025-01-09 03:44:28,279 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 181 of 181 statements. [2025-01-09 03:44:28,279 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:28,279 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:28,288 INFO L256 TraceCheckSpWp]: Trace formula consists of 1957 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-01-09 03:44:28,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:28,425 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 03:44:28,427 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:28,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427060338] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:28,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:28,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-01-09 03:44:28,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433931299] [2025-01-09 03:44:28,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:28,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:28,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:28,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:28,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:44:28,429 INFO L87 Difference]: Start difference. First operand 1265 states and 2047 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2025-01-09 03:44:29,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:29,190 INFO L93 Difference]: Finished difference Result 2428 states and 3973 transitions. [2025-01-09 03:44:29,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:44:29,191 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 181 [2025-01-09 03:44:29,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:29,210 INFO L225 Difference]: With dead ends: 2428 [2025-01-09 03:44:29,210 INFO L226 Difference]: Without dead ends: 1249 [2025-01-09 03:44:29,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 191 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 03:44:29,218 INFO L435 NwaCegarLoop]: 306 mSDtfsCounter, 1346 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1346 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 375 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:29,218 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1346 Valid, 320 Invalid, 989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [375 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-01-09 03:44:29,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2025-01-09 03:44:29,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1249. [2025-01-09 03:44:29,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1249 states, 974 states have (on average 1.6180698151950719) internal successors, (1576), 1009 states have internal predecessors, (1576), 209 states have call successors, (209), 61 states have call predecessors, (209), 65 states have return successors, (230), 203 states have call predecessors, (230), 205 states have call successors, (230) [2025-01-09 03:44:29,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1249 states to 1249 states and 2015 transitions. [2025-01-09 03:44:29,287 INFO L78 Accepts]: Start accepts. Automaton has 1249 states and 2015 transitions. Word has length 181 [2025-01-09 03:44:29,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:29,288 INFO L471 AbstractCegarLoop]: Abstraction has 1249 states and 2015 transitions. [2025-01-09 03:44:29,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 4 states have call successors, (20), 3 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2025-01-09 03:44:29,288 INFO L276 IsEmpty]: Start isEmpty. Operand 1249 states and 2015 transitions. [2025-01-09 03:44:29,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2025-01-09 03:44:29,291 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:29,293 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] [2025-01-09 03:44:29,306 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 03:44:29,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,29 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:29,494 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:29,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:29,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1771305496, now seen corresponding path program 1 times [2025-01-09 03:44:29,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:29,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902887943] [2025-01-09 03:44:29,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:29,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:29,507 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 182 statements into 1 equivalence classes. [2025-01-09 03:44:29,515 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 182 of 182 statements. [2025-01-09 03:44:29,515 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:29,515 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:29,792 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 03:44:29,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:29,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902887943] [2025-01-09 03:44:29,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902887943] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:29,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494942447] [2025-01-09 03:44:29,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:29,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:29,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:29,794 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 03:44:29,796 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 03:44:29,970 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 182 statements into 1 equivalence classes. [2025-01-09 03:44:30,126 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 182 of 182 statements. [2025-01-09 03:44:30,126 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:30,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:30,133 INFO L256 TraceCheckSpWp]: Trace formula consists of 1959 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-09 03:44:30,136 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:30,192 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2025-01-09 03:44:30,192 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 03:44:30,444 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 03:44:30,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494942447] provided 1 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:30,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-01-09 03:44:30,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10, 6] total 15 [2025-01-09 03:44:30,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118410587] [2025-01-09 03:44:30,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:30,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:44:30,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:30,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:44:30,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2025-01-09 03:44:30,446 INFO L87 Difference]: Start difference. First operand 1249 states and 2015 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2025-01-09 03:44:30,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:30,572 INFO L93 Difference]: Finished difference Result 1269 states and 2039 transitions. [2025-01-09 03:44:30,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:44:30,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) Word has length 182 [2025-01-09 03:44:30,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:30,581 INFO L225 Difference]: With dead ends: 1269 [2025-01-09 03:44:30,582 INFO L226 Difference]: Without dead ends: 1255 [2025-01-09 03:44:30,582 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 382 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=182, Unknown=0, NotChecked=0, Total=210 [2025-01-09 03:44:30,583 INFO L435 NwaCegarLoop]: 911 mSDtfsCounter, 0 mSDsluCounter, 2718 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3629 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 03:44:30,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3629 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:44:30,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2025-01-09 03:44:30,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1255. [2025-01-09 03:44:30,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 980 states have (on average 1.6142857142857143) internal successors, (1582), 1015 states have internal predecessors, (1582), 209 states have call successors, (209), 61 states have call predecessors, (209), 65 states have return successors, (230), 203 states have call predecessors, (230), 205 states have call successors, (230) [2025-01-09 03:44:30,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 2021 transitions. [2025-01-09 03:44:30,635 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 2021 transitions. Word has length 182 [2025-01-09 03:44:30,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:30,635 INFO L471 AbstractCegarLoop]: Abstraction has 1255 states and 2021 transitions. [2025-01-09 03:44:30,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 1 states have call successors, (19) [2025-01-09 03:44:30,636 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 2021 transitions. [2025-01-09 03:44:30,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2025-01-09 03:44:30,639 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:30,639 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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 03:44:30,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2025-01-09 03:44:30,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,30 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:30,840 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:30,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:30,841 INFO L85 PathProgramCache]: Analyzing trace with hash 427611148, now seen corresponding path program 1 times [2025-01-09 03:44:30,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:30,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71693258] [2025-01-09 03:44:30,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:30,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:30,861 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 273 statements into 1 equivalence classes. [2025-01-09 03:44:30,871 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 273 of 273 statements. [2025-01-09 03:44:30,871 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:30,871 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:31,413 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2025-01-09 03:44:31,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:31,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71693258] [2025-01-09 03:44:31,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71693258] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:31,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026913693] [2025-01-09 03:44:31,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:31,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:31,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:31,418 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 03:44:31,419 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 03:44:31,653 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 273 statements into 1 equivalence classes. [2025-01-09 03:44:31,908 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 273 of 273 statements. [2025-01-09 03:44:31,908 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:31,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:31,921 INFO L256 TraceCheckSpWp]: Trace formula consists of 2429 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 03:44:31,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:32,066 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 32 proven. 88 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2025-01-09 03:44:32,066 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 03:44:32,473 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2025-01-09 03:44:32,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026913693] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 03:44:32,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 03:44:32,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5] total 14 [2025-01-09 03:44:32,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980765076] [2025-01-09 03:44:32,474 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 03:44:32,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-09 03:44:32,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:32,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-09 03:44:32,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2025-01-09 03:44:32,482 INFO L87 Difference]: Start difference. First operand 1255 states and 2021 transitions. Second operand has 14 states, 14 states have (on average 19.214285714285715) internal successors, (269), 12 states have internal predecessors, (269), 9 states have call successors, (59), 6 states have call predecessors, (59), 8 states have return successors, (58), 11 states have call predecessors, (58), 8 states have call successors, (58) [2025-01-09 03:44:41,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:41,139 INFO L93 Difference]: Finished difference Result 9021 states and 15211 transitions. [2025-01-09 03:44:41,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2025-01-09 03:44:41,140 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 19.214285714285715) internal successors, (269), 12 states have internal predecessors, (269), 9 states have call successors, (59), 6 states have call predecessors, (59), 8 states have return successors, (58), 11 states have call predecessors, (58), 8 states have call successors, (58) Word has length 273 [2025-01-09 03:44:41,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:41,197 INFO L225 Difference]: With dead ends: 9021 [2025-01-09 03:44:41,198 INFO L226 Difference]: Without dead ends: 7852 [2025-01-09 03:44:41,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 634 GetRequests, 564 SyntacticMatches, 2 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1475 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=653, Invalid=4177, Unknown=0, NotChecked=0, Total=4830 [2025-01-09 03:44:41,213 INFO L435 NwaCegarLoop]: 783 mSDtfsCounter, 7859 mSDsluCounter, 5631 mSDsCounter, 0 mSdLazyCounter, 15944 mSolverCounterSat, 2570 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7941 SdHoareTripleChecker+Valid, 6414 SdHoareTripleChecker+Invalid, 18514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2570 IncrementalHoareTripleChecker+Valid, 15944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:41,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7941 Valid, 6414 Invalid, 18514 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2570 Valid, 15944 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2025-01-09 03:44:41,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7852 states. [2025-01-09 03:44:41,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7852 to 6742. [2025-01-09 03:44:41,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6742 states, 5151 states have (on average 1.588623568239177) internal successors, (8183), 5355 states have internal predecessors, (8183), 1181 states have call successors, (1181), 282 states have call predecessors, (1181), 409 states have return successors, (1736), 1196 states have call predecessors, (1736), 1177 states have call successors, (1736) [2025-01-09 03:44:41,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6742 states to 6742 states and 11100 transitions. [2025-01-09 03:44:41,702 INFO L78 Accepts]: Start accepts. Automaton has 6742 states and 11100 transitions. Word has length 273 [2025-01-09 03:44:41,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:41,703 INFO L471 AbstractCegarLoop]: Abstraction has 6742 states and 11100 transitions. [2025-01-09 03:44:41,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 19.214285714285715) internal successors, (269), 12 states have internal predecessors, (269), 9 states have call successors, (59), 6 states have call predecessors, (59), 8 states have return successors, (58), 11 states have call predecessors, (58), 8 states have call successors, (58) [2025-01-09 03:44:41,703 INFO L276 IsEmpty]: Start isEmpty. Operand 6742 states and 11100 transitions. [2025-01-09 03:44:41,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2025-01-09 03:44:41,722 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:41,722 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:41,734 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 03:44:41,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2025-01-09 03:44:41,923 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:41,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:41,924 INFO L85 PathProgramCache]: Analyzing trace with hash -789758749, now seen corresponding path program 1 times [2025-01-09 03:44:41,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:41,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047964610] [2025-01-09 03:44:41,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:41,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:41,943 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 275 statements into 1 equivalence classes. [2025-01-09 03:44:41,955 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 275 of 275 statements. [2025-01-09 03:44:41,955 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:41,955 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:42,143 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2025-01-09 03:44:42,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:42,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047964610] [2025-01-09 03:44:42,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047964610] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:42,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:44:42,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 03:44:42,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442450642] [2025-01-09 03:44:42,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:42,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:44:42,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:42,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:44:42,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:44:42,145 INFO L87 Difference]: Start difference. First operand 6742 states and 11100 transitions. Second operand has 8 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-01-09 03:44:42,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:42,543 INFO L93 Difference]: Finished difference Result 13407 states and 22108 transitions. [2025-01-09 03:44:42,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 03:44:42,544 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 275 [2025-01-09 03:44:42,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:42,593 INFO L225 Difference]: With dead ends: 13407 [2025-01-09 03:44:42,593 INFO L226 Difference]: Without dead ends: 6733 [2025-01-09 03:44:42,620 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:44:42,621 INFO L435 NwaCegarLoop]: 899 mSDtfsCounter, 41 mSDsluCounter, 5342 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 6241 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:42,621 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 6241 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:44:42,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6733 states. [2025-01-09 03:44:42,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6733 to 6733. [2025-01-09 03:44:42,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6733 states, 5144 states have (on average 1.588063763608087) internal successors, (8169), 5347 states have internal predecessors, (8169), 1181 states have call successors, (1181), 282 states have call predecessors, (1181), 407 states have return successors, (1732), 1195 states have call predecessors, (1732), 1177 states have call successors, (1732) [2025-01-09 03:44:42,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6733 states to 6733 states and 11082 transitions. [2025-01-09 03:44:42,997 INFO L78 Accepts]: Start accepts. Automaton has 6733 states and 11082 transitions. Word has length 275 [2025-01-09 03:44:42,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:42,998 INFO L471 AbstractCegarLoop]: Abstraction has 6733 states and 11082 transitions. [2025-01-09 03:44:42,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 19.714285714285715) internal successors, (138), 7 states have internal predecessors, (138), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2025-01-09 03:44:42,998 INFO L276 IsEmpty]: Start isEmpty. Operand 6733 states and 11082 transitions. [2025-01-09 03:44:43,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2025-01-09 03:44:43,013 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:43,013 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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] [2025-01-09 03:44:43,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2025-01-09 03:44:43,013 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:43,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:43,014 INFO L85 PathProgramCache]: Analyzing trace with hash -352890266, now seen corresponding path program 1 times [2025-01-09 03:44:43,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:43,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720634498] [2025-01-09 03:44:43,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:43,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:43,032 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 276 statements into 1 equivalence classes. [2025-01-09 03:44:43,037 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 276 of 276 statements. [2025-01-09 03:44:43,038 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:43,038 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:43,312 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2025-01-09 03:44:43,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:43,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720634498] [2025-01-09 03:44:43,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720634498] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:43,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661355218] [2025-01-09 03:44:43,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:43,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:43,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:43,316 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 03:44:43,318 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 03:44:43,567 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 276 statements into 1 equivalence classes. [2025-01-09 03:44:43,812 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 276 of 276 statements. [2025-01-09 03:44:43,812 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:43,812 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:43,819 INFO L256 TraceCheckSpWp]: Trace formula consists of 2427 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-01-09 03:44:43,826 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:43,866 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2025-01-09 03:44:43,866 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:43,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661355218] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:43,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:43,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2025-01-09 03:44:43,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933971768] [2025-01-09 03:44:43,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:43,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:44:43,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:43,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:44:43,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:44:43,869 INFO L87 Difference]: Start difference. First operand 6733 states and 11082 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2025-01-09 03:44:44,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:44,091 INFO L93 Difference]: Finished difference Result 8797 states and 14432 transitions. [2025-01-09 03:44:44,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:44:44,092 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 276 [2025-01-09 03:44:44,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:44,112 INFO L225 Difference]: With dead ends: 8797 [2025-01-09 03:44:44,113 INFO L226 Difference]: Without dead ends: 2104 [2025-01-09 03:44:44,144 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-01-09 03:44:44,145 INFO L435 NwaCegarLoop]: 888 mSDtfsCounter, 3 mSDsluCounter, 1769 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2657 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:44:44,145 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2657 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:44:44,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2104 states. [2025-01-09 03:44:44,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2104 to 2104. [2025-01-09 03:44:44,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2104 states, 1634 states have (on average 1.587515299877601) internal successors, (2594), 1696 states have internal predecessors, (2594), 340 states have call successors, (340), 98 states have call predecessors, (340), 129 states have return successors, (458), 333 states have call predecessors, (458), 336 states have call successors, (458) [2025-01-09 03:44:44,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2104 states to 2104 states and 3392 transitions. [2025-01-09 03:44:44,331 INFO L78 Accepts]: Start accepts. Automaton has 2104 states and 3392 transitions. Word has length 276 [2025-01-09 03:44:44,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:44,332 INFO L471 AbstractCegarLoop]: Abstraction has 2104 states and 3392 transitions. [2025-01-09 03:44:44,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 2 states have call successors, (23), 2 states have call predecessors, (23), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2025-01-09 03:44:44,332 INFO L276 IsEmpty]: Start isEmpty. Operand 2104 states and 3392 transitions. [2025-01-09 03:44:44,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2025-01-09 03:44:44,339 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:44,339 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 03:44:44,352 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 03:44:44,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2025-01-09 03:44:44,540 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:44,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:44,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1367781496, now seen corresponding path program 1 times [2025-01-09 03:44:44,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:44,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785106210] [2025-01-09 03:44:44,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:44,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:44,570 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 281 statements into 1 equivalence classes. [2025-01-09 03:44:44,584 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 281 of 281 statements. [2025-01-09 03:44:44,585 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:44,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:45,053 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 2 proven. 39 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2025-01-09 03:44:45,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:45,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785106210] [2025-01-09 03:44:45,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785106210] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:45,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560560807] [2025-01-09 03:44:45,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:45,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:45,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:45,056 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 03:44:45,060 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 03:44:45,272 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 281 statements into 1 equivalence classes. [2025-01-09 03:44:45,472 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 281 of 281 statements. [2025-01-09 03:44:45,472 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:45,472 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:45,480 INFO L256 TraceCheckSpWp]: Trace formula consists of 2455 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 03:44:45,485 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:45,551 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2025-01-09 03:44:45,551 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:44:45,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560560807] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:44:45,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:44:45,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2025-01-09 03:44:45,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685596396] [2025-01-09 03:44:45,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:44:45,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:44:45,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:45,554 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:44:45,554 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2025-01-09 03:44:45,554 INFO L87 Difference]: Start difference. First operand 2104 states and 3392 transitions. Second operand has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 6 states have internal predecessors, (144), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2025-01-09 03:44:45,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:44:45,645 INFO L93 Difference]: Finished difference Result 4148 states and 6736 transitions. [2025-01-09 03:44:45,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-01-09 03:44:45,645 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 6 states have internal predecessors, (144), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) Word has length 281 [2025-01-09 03:44:45,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:44:45,660 INFO L225 Difference]: With dead ends: 4148 [2025-01-09 03:44:45,661 INFO L226 Difference]: Without dead ends: 2128 [2025-01-09 03:44:45,668 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2025-01-09 03:44:45,669 INFO L435 NwaCegarLoop]: 904 mSDtfsCounter, 0 mSDsluCounter, 4503 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5407 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 03:44:45,669 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5407 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:44:45,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2128 states. [2025-01-09 03:44:45,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2128 to 2122. [2025-01-09 03:44:45,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2122 states, 1648 states have (on average 1.5825242718446602) internal successors, (2608), 1712 states have internal predecessors, (2608), 340 states have call successors, (340), 98 states have call predecessors, (340), 133 states have return successors, (462), 335 states have call predecessors, (462), 336 states have call successors, (462) [2025-01-09 03:44:45,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2122 states to 2122 states and 3410 transitions. [2025-01-09 03:44:45,778 INFO L78 Accepts]: Start accepts. Automaton has 2122 states and 3410 transitions. Word has length 281 [2025-01-09 03:44:45,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:44:45,779 INFO L471 AbstractCegarLoop]: Abstraction has 2122 states and 3410 transitions. [2025-01-09 03:44:45,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.571428571428573) internal successors, (144), 6 states have internal predecessors, (144), 2 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2025-01-09 03:44:45,779 INFO L276 IsEmpty]: Start isEmpty. Operand 2122 states and 3410 transitions. [2025-01-09 03:44:45,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2025-01-09 03:44:45,784 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:44:45,784 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 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] [2025-01-09 03:44:45,796 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 03:44:45,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2025-01-09 03:44:45,985 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:44:45,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:44:45,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1267466720, now seen corresponding path program 1 times [2025-01-09 03:44:45,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:44:45,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921594690] [2025-01-09 03:44:45,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:45,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:44:46,009 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 287 statements into 1 equivalence classes. [2025-01-09 03:44:46,020 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 287 of 287 statements. [2025-01-09 03:44:46,020 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:46,020 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:46,149 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2025-01-09 03:44:46,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:44:46,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921594690] [2025-01-09 03:44:46,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921594690] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:44:46,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852180527] [2025-01-09 03:44:46,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:44:46,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:44:46,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:44:46,152 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 03:44:46,153 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 03:44:46,356 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 287 statements into 1 equivalence classes. [2025-01-09 03:44:46,584 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 287 of 287 statements. [2025-01-09 03:44:46,585 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:44:46,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:44:46,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 2469 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-01-09 03:44:46,596 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:44:46,837 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 14 proven. 33 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2025-01-09 03:44:46,838 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 03:44:47,869 INFO L134 CoverageAnalysis]: Checked inductivity of 214 backedges. 16 proven. 36 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2025-01-09 03:44:47,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852180527] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 03:44:47,870 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 03:44:47,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 13, 14] total 24 [2025-01-09 03:44:47,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837267523] [2025-01-09 03:44:47,870 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 03:44:47,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-01-09 03:44:47,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:44:47,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-01-09 03:44:47,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2025-01-09 03:44:47,872 INFO L87 Difference]: Start difference. First operand 2122 states and 3410 transitions. Second operand has 24 states, 22 states have (on average 13.5) internal successors, (297), 22 states have internal predecessors, (297), 14 states have call successors, (65), 7 states have call predecessors, (65), 12 states have return successors, (66), 16 states have call predecessors, (66), 13 states have call successors, (66) [2025-01-09 03:45:00,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:45:00,924 INFO L93 Difference]: Finished difference Result 11432 states and 18789 transitions. [2025-01-09 03:45:00,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2025-01-09 03:45:00,924 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 13.5) internal successors, (297), 22 states have internal predecessors, (297), 14 states have call successors, (65), 7 states have call predecessors, (65), 12 states have return successors, (66), 16 states have call predecessors, (66), 13 states have call successors, (66) Word has length 287 [2025-01-09 03:45:00,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:45:00,987 INFO L225 Difference]: With dead ends: 11432 [2025-01-09 03:45:00,987 INFO L226 Difference]: Without dead ends: 8874 [2025-01-09 03:45:01,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 750 GetRequests, 612 SyntacticMatches, 4 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6445 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2360, Invalid=16000, Unknown=0, NotChecked=0, Total=18360 [2025-01-09 03:45:01,021 INFO L435 NwaCegarLoop]: 815 mSDtfsCounter, 14521 mSDsluCounter, 11063 mSDsCounter, 0 mSdLazyCounter, 22016 mSolverCounterSat, 4855 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14556 SdHoareTripleChecker+Valid, 11878 SdHoareTripleChecker+Invalid, 26871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4855 IncrementalHoareTripleChecker+Valid, 22016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2025-01-09 03:45:01,021 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14556 Valid, 11878 Invalid, 26871 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4855 Valid, 22016 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2025-01-09 03:45:01,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8874 states. [2025-01-09 03:45:01,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8874 to 8482. [2025-01-09 03:45:01,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8482 states, 6380 states have (on average 1.547335423197492) internal successors, (9872), 6692 states have internal predecessors, (9872), 1539 states have call successors, (1539), 423 states have call predecessors, (1539), 562 states have return successors, (2141), 1558 states have call predecessors, (2141), 1535 states have call successors, (2141) [2025-01-09 03:45:01,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8482 states to 8482 states and 13552 transitions. [2025-01-09 03:45:01,801 INFO L78 Accepts]: Start accepts. Automaton has 8482 states and 13552 transitions. Word has length 287 [2025-01-09 03:45:01,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:45:01,803 INFO L471 AbstractCegarLoop]: Abstraction has 8482 states and 13552 transitions. [2025-01-09 03:45:01,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 13.5) internal successors, (297), 22 states have internal predecessors, (297), 14 states have call successors, (65), 7 states have call predecessors, (65), 12 states have return successors, (66), 16 states have call predecessors, (66), 13 states have call successors, (66) [2025-01-09 03:45:01,803 INFO L276 IsEmpty]: Start isEmpty. Operand 8482 states and 13552 transitions. [2025-01-09 03:45:01,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2025-01-09 03:45:01,808 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:45:01,808 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 03:45:01,820 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 03:45:02,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,34 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:45:02,010 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:45:02,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:45:02,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1061567122, now seen corresponding path program 1 times [2025-01-09 03:45:02,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:45:02,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912617688] [2025-01-09 03:45:02,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:02,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:45:02,034 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 236 statements into 1 equivalence classes. [2025-01-09 03:45:02,049 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 236 of 236 statements. [2025-01-09 03:45:02,049 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:02,049 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:02,392 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 5 proven. 10 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2025-01-09 03:45:02,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:45:02,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912617688] [2025-01-09 03:45:02,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912617688] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:45:02,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885861837] [2025-01-09 03:45:02,392 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:45:02,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:45:02,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:45:02,395 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 03:45:02,396 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 03:45:02,598 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 236 statements into 1 equivalence classes. [2025-01-09 03:45:02,779 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 236 of 236 statements. [2025-01-09 03:45:02,779 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:45:02,779 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:45:02,786 INFO L256 TraceCheckSpWp]: Trace formula consists of 2100 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-01-09 03:45:02,789 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:45:03,047 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 03:45:03,047 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 03:45:03,654 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 03:45:03,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885861837] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 03:45:03,654 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 03:45:03,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 8] total 23 [2025-01-09 03:45:03,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529939013] [2025-01-09 03:45:03,654 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 03:45:03,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-01-09 03:45:03,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:45:03,656 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-01-09 03:45:03,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=443, Unknown=0, NotChecked=0, Total=506 [2025-01-09 03:45:03,657 INFO L87 Difference]: Start difference. First operand 8482 states and 13552 transitions. Second operand has 23 states, 23 states have (on average 13.608695652173912) internal successors, (313), 19 states have internal predecessors, (313), 11 states have call successors, (62), 6 states have call predecessors, (62), 14 states have return successors, (63), 15 states have call predecessors, (63), 10 states have call successors, (63)