./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/rlim_exit.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/float-benchs/rlim_exit.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 d77357c243d95f35d00bc89e7fc23b91d82935f320cfab6cb2f6a7d192f5b03f --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 00:55:00,399 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 00:55:00,460 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 00:55:00,463 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 00:55:00,463 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 00:55:00,490 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 00:55:00,490 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 00:55:00,491 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 00:55:00,491 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 00:55:00,491 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 00:55:00,491 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 00:55:00,491 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 00:55:00,491 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 00:55:00,491 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 00:55:00,491 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 00:55:00,492 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 00:55:00,492 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 00:55:00,492 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 00:55:00,492 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 00:55:00,492 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 00:55:00,492 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 00:55:00,492 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 00:55:00,492 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 00:55:00,492 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 00:55:00,492 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 00:55:00,492 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 00:55:00,493 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 00:55:00,493 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 00:55:00,493 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 00:55:00,493 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 00:55:00,493 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 00:55:00,493 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 00:55:00,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:55:00,493 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 00:55:00,493 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 00:55:00,493 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 00:55:00,493 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 00:55:00,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:55:00,494 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 00:55:00,494 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 00:55:00,494 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 00:55:00,494 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 00:55:00,494 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 00:55:00,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 00:55:00,494 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 00:55:00,494 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 00:55:00,494 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 00:55:00,494 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 00:55:00,494 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 -> d77357c243d95f35d00bc89e7fc23b91d82935f320cfab6cb2f6a7d192f5b03f [2025-01-09 00:55:00,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 00:55:00,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 00:55:00,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 00:55:00,724 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 00:55:00,724 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 00:55:00,726 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/rlim_exit.c [2025-01-09 00:55:01,878 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7c9b7f616/a2286413bca04b6d8a01458204649f5e/FLAG8044d0eff [2025-01-09 00:55:02,081 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 00:55:02,082 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-benchs/rlim_exit.c [2025-01-09 00:55:02,091 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7c9b7f616/a2286413bca04b6d8a01458204649f5e/FLAG8044d0eff [2025-01-09 00:55:02,454 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7c9b7f616/a2286413bca04b6d8a01458204649f5e [2025-01-09 00:55:02,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 00:55:02,457 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 00:55:02,458 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 00:55:02,458 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 00:55:02,461 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 00:55:02,461 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:55:02" (1/1) ... [2025-01-09 00:55:02,462 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14d91769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:02, skipping insertion in model container [2025-01-09 00:55:02,462 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 12:55:02" (1/1) ... [2025-01-09 00:55:02,470 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 00:55:02,574 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/float-benchs/rlim_exit.c[446,459] [2025-01-09 00:55:02,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 00:55:02,595 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 00:55:02,603 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/float-benchs/rlim_exit.c[446,459] [2025-01-09 00:55:02,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 00:55:02,618 INFO L204 MainTranslator]: Completed translation [2025-01-09 00:55:02,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:02 WrapperNode [2025-01-09 00:55:02,619 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 00:55:02,620 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 00:55:02,621 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 00:55:02,621 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 00:55:02,626 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:02" (1/1) ... [2025-01-09 00:55:02,631 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:02" (1/1) ... [2025-01-09 00:55:02,640 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 45 [2025-01-09 00:55:02,641 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 00:55:02,642 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 00:55:02,642 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 00:55:02,642 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 00:55:02,647 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:02" (1/1) ... [2025-01-09 00:55:02,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:02" (1/1) ... [2025-01-09 00:55:02,647 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:02" (1/1) ... [2025-01-09 00:55:02,653 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-01-09 00:55:02,653 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:02" (1/1) ... [2025-01-09 00:55:02,653 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:02" (1/1) ... [2025-01-09 00:55:02,655 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:02" (1/1) ... [2025-01-09 00:55:02,656 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:02" (1/1) ... [2025-01-09 00:55:02,657 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:02" (1/1) ... [2025-01-09 00:55:02,658 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:02" (1/1) ... [2025-01-09 00:55:02,658 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:02" (1/1) ... [2025-01-09 00:55:02,659 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 00:55:02,659 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 00:55:02,659 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 00:55:02,660 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 00:55:02,660 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:02" (1/1) ... [2025-01-09 00:55:02,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 00:55:02,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 00:55:02,689 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 00:55:02,691 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 00:55:02,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 00:55:02,707 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-01-09 00:55:02,707 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-01-09 00:55:02,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 00:55:02,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 00:55:02,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 00:55:02,743 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 00:55:02,744 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 00:55:02,802 INFO L? ?]: Removed 9 outVars from TransFormulas that were not future-live. [2025-01-09 00:55:02,803 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 00:55:02,808 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 00:55:02,808 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-01-09 00:55:02,808 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:55:02 BoogieIcfgContainer [2025-01-09 00:55:02,808 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 00:55:02,810 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 00:55:02,810 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 00:55:02,813 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 00:55:02,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 12:55:02" (1/3) ... [2025-01-09 00:55:02,813 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@191cf35b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:55:02, skipping insertion in model container [2025-01-09 00:55:02,813 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 12:55:02" (2/3) ... [2025-01-09 00:55:02,814 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@191cf35b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 12:55:02, skipping insertion in model container [2025-01-09 00:55:02,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 12:55:02" (3/3) ... [2025-01-09 00:55:02,814 INFO L128 eAbstractionObserver]: Analyzing ICFG rlim_exit.c [2025-01-09 00:55:02,823 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 00:55:02,826 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rlim_exit.c that has 2 procedures, 20 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 00:55:02,864 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 00:55:02,874 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;@485fe8d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 00:55:02,875 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 00:55:02,877 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 00:55:02,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2025-01-09 00:55:02,881 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:55:02,881 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2025-01-09 00:55:02,882 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:55:02,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:55:02,886 INFO L85 PathProgramCache]: Analyzing trace with hash 28711670, now seen corresponding path program 1 times [2025-01-09 00:55:02,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:55:02,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713390395] [2025-01-09 00:55:02,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 00:55:02,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:55:02,942 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-01-09 00:55:02,952 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-01-09 00:55:02,952 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:55:02,953 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:55:03,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 00:55:03,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 00:55:03,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713390395] [2025-01-09 00:55:03,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713390395] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 00:55:03,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 00:55:03,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 00:55:03,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091044114] [2025-01-09 00:55:03,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 00:55:03,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 00:55:03,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 00:55:03,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 00:55:03,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 00:55:03,044 INFO L87 Difference]: Start difference. First operand has 20 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:55:03,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 00:55:03,070 INFO L93 Difference]: Finished difference Result 45 states and 64 transitions. [2025-01-09 00:55:03,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 00:55:03,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2025-01-09 00:55:03,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 00:55:03,077 INFO L225 Difference]: With dead ends: 45 [2025-01-09 00:55:03,077 INFO L226 Difference]: Without dead ends: 23 [2025-01-09 00:55:03,080 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 00:55:03,082 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 6 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 00:55:03,084 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 39 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 00:55:03,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2025-01-09 00:55:03,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 17. [2025-01-09 00:55:03,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 00:55:03,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2025-01-09 00:55:03,111 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 5 [2025-01-09 00:55:03,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 00:55:03,111 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2025-01-09 00:55:03,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 00:55:03,111 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2025-01-09 00:55:03,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2025-01-09 00:55:03,113 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:55:03,113 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 00:55:03,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 00:55:03,114 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:55:03,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:55:03,115 INFO L85 PathProgramCache]: Analyzing trace with hash 40541390, now seen corresponding path program 1 times [2025-01-09 00:55:03,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:55:03,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353874716] [2025-01-09 00:55:03,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 00:55:03,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:55:03,125 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-09 00:55:03,136 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-09 00:55:03,138 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:55:03,138 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:55:03,209 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-09 00:55:03,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 00:55:03,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353874716] [2025-01-09 00:55:03,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353874716] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 00:55:03,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899502519] [2025-01-09 00:55:03,210 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 00:55:03,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 00:55:03,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 00:55:03,221 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 00:55:03,224 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 00:55:03,252 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-01-09 00:55:03,261 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-01-09 00:55:03,261 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:55:03,261 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:55:03,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 00:55:03,265 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 00:55:03,300 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-09 00:55:03,300 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 00:55:03,334 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-01-09 00:55:03,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899502519] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 00:55:03,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 00:55:03,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-01-09 00:55:03,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433092] [2025-01-09 00:55:03,336 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 00:55:03,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 00:55:03,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 00:55:03,337 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 00:55:03,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-01-09 00:55:03,337 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-01-09 00:55:03,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 00:55:03,369 INFO L93 Difference]: Finished difference Result 41 states and 58 transitions. [2025-01-09 00:55:03,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 00:55:03,370 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 19 [2025-01-09 00:55:03,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 00:55:03,370 INFO L225 Difference]: With dead ends: 41 [2025-01-09 00:55:03,370 INFO L226 Difference]: Without dead ends: 38 [2025-01-09 00:55:03,371 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-01-09 00:55:03,371 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 24 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 00:55:03,372 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 53 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 00:55:03,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2025-01-09 00:55:03,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2025-01-09 00:55:03,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 28 states have (on average 1.3214285714285714) internal successors, (37), 28 states have internal predecessors, (37), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2025-01-09 00:55:03,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 53 transitions. [2025-01-09 00:55:03,377 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 53 transitions. Word has length 19 [2025-01-09 00:55:03,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 00:55:03,377 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 53 transitions. [2025-01-09 00:55:03,377 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2025-01-09 00:55:03,377 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2025-01-09 00:55:03,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2025-01-09 00:55:03,378 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:55:03,378 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2025-01-09 00:55:03,385 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 00:55:03,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 00:55:03,579 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:55:03,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:55:03,580 INFO L85 PathProgramCache]: Analyzing trace with hash 700810838, now seen corresponding path program 2 times [2025-01-09 00:55:03,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:55:03,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164232229] [2025-01-09 00:55:03,580 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 00:55:03,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:55:03,600 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 61 statements into 2 equivalence classes. [2025-01-09 00:55:03,628 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 61 of 61 statements. [2025-01-09 00:55:03,628 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-09 00:55:03,628 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:55:03,771 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-01-09 00:55:03,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 00:55:03,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164232229] [2025-01-09 00:55:03,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164232229] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 00:55:03,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146084860] [2025-01-09 00:55:03,772 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-01-09 00:55:03,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 00:55:03,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 00:55:03,777 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 00:55:03,778 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 00:55:03,818 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 61 statements into 2 equivalence classes. [2025-01-09 00:55:03,835 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 61 of 61 statements. [2025-01-09 00:55:03,835 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-01-09 00:55:03,835 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:55:03,836 INFO L256 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-01-09 00:55:03,838 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 00:55:03,902 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-01-09 00:55:03,902 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 00:55:04,001 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2025-01-09 00:55:04,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146084860] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 00:55:04,001 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 00:55:04,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2025-01-09 00:55:04,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258760815] [2025-01-09 00:55:04,002 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 00:55:04,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-01-09 00:55:04,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 00:55:04,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-01-09 00:55:04,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-01-09 00:55:04,003 INFO L87 Difference]: Start difference. First operand 38 states and 53 transitions. Second operand has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 9 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) [2025-01-09 00:55:04,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 00:55:04,063 INFO L93 Difference]: Finished difference Result 83 states and 127 transitions. [2025-01-09 00:55:04,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-09 00:55:04,064 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 9 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) Word has length 61 [2025-01-09 00:55:04,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 00:55:04,065 INFO L225 Difference]: With dead ends: 83 [2025-01-09 00:55:04,065 INFO L226 Difference]: Without dead ends: 80 [2025-01-09 00:55:04,069 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2025-01-09 00:55:04,069 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 69 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 00:55:04,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 86 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 00:55:04,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2025-01-09 00:55:04,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2025-01-09 00:55:04,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 58 states have (on average 1.3620689655172413) internal successors, (79), 58 states have internal predecessors, (79), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2025-01-09 00:55:04,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 119 transitions. [2025-01-09 00:55:04,082 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 119 transitions. Word has length 61 [2025-01-09 00:55:04,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 00:55:04,082 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 119 transitions. [2025-01-09 00:55:04,082 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.6153846153846154) internal successors, (47), 13 states have internal predecessors, (47), 9 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (18), 9 states have call predecessors, (18), 9 states have call successors, (18) [2025-01-09 00:55:04,082 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 119 transitions. [2025-01-09 00:55:04,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2025-01-09 00:55:04,085 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:55:04,085 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 20, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1] [2025-01-09 00:55:04,091 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 00:55:04,289 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 00:55:04,290 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:55:04,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:55:04,290 INFO L85 PathProgramCache]: Analyzing trace with hash -456221850, now seen corresponding path program 3 times [2025-01-09 00:55:04,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:55:04,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972452948] [2025-01-09 00:55:04,290 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-09 00:55:04,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:55:04,306 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 145 statements into 16 equivalence classes. [2025-01-09 00:55:04,332 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) and asserted 140 of 145 statements. [2025-01-09 00:55:04,333 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2025-01-09 00:55:04,333 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:55:04,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-01-09 00:55:04,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 00:55:04,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972452948] [2025-01-09 00:55:04,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972452948] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 00:55:04,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092153471] [2025-01-09 00:55:04,767 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-01-09 00:55:04,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 00:55:04,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 00:55:04,770 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 00:55:04,773 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 00:55:04,819 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 145 statements into 16 equivalence classes. [2025-01-09 00:55:04,855 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) and asserted 140 of 145 statements. [2025-01-09 00:55:04,855 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2025-01-09 00:55:04,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:55:04,857 INFO L256 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-09 00:55:04,860 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 00:55:04,945 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-01-09 00:55:04,945 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 00:55:05,239 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2025-01-09 00:55:05,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092153471] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 00:55:05,239 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 00:55:05,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2025-01-09 00:55:05,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820335356] [2025-01-09 00:55:05,240 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 00:55:05,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-01-09 00:55:05,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 00:55:05,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-01-09 00:55:05,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2025-01-09 00:55:05,241 INFO L87 Difference]: Start difference. First operand 80 states and 119 transitions. Second operand has 25 states, 25 states have (on average 3.8) internal successors, (95), 25 states have internal predecessors, (95), 21 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 21 states have call predecessors, (42), 21 states have call successors, (42) [2025-01-09 00:55:05,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 00:55:05,405 INFO L93 Difference]: Finished difference Result 167 states and 265 transitions. [2025-01-09 00:55:05,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-01-09 00:55:05,406 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.8) internal successors, (95), 25 states have internal predecessors, (95), 21 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 21 states have call predecessors, (42), 21 states have call successors, (42) Word has length 145 [2025-01-09 00:55:05,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 00:55:05,407 INFO L225 Difference]: With dead ends: 167 [2025-01-09 00:55:05,407 INFO L226 Difference]: Without dead ends: 164 [2025-01-09 00:55:05,407 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2025-01-09 00:55:05,408 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 171 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 00:55:05,408 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 159 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 00:55:05,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2025-01-09 00:55:05,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2025-01-09 00:55:05,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 118 states have (on average 1.38135593220339) internal successors, (163), 118 states have internal predecessors, (163), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2025-01-09 00:55:05,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 251 transitions. [2025-01-09 00:55:05,429 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 251 transitions. Word has length 145 [2025-01-09 00:55:05,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 00:55:05,429 INFO L471 AbstractCegarLoop]: Abstraction has 164 states and 251 transitions. [2025-01-09 00:55:05,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.8) internal successors, (95), 25 states have internal predecessors, (95), 21 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 21 states have call predecessors, (42), 21 states have call successors, (42) [2025-01-09 00:55:05,429 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 251 transitions. [2025-01-09 00:55:05,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2025-01-09 00:55:05,439 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:55:05,439 INFO L218 NwaCegarLoop]: trace histogram [44, 44, 44, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1] [2025-01-09 00:55:05,451 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 00:55:05,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 00:55:05,646 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:55:05,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:55:05,648 INFO L85 PathProgramCache]: Analyzing trace with hash 323734918, now seen corresponding path program 4 times [2025-01-09 00:55:05,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:55:05,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767263279] [2025-01-09 00:55:05,648 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-09 00:55:05,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:55:05,676 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 313 statements into 2 equivalence classes. [2025-01-09 00:55:05,742 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 313 of 313 statements. [2025-01-09 00:55:05,742 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-09 00:55:05,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:55:06,476 INFO L134 CoverageAnalysis]: Checked inductivity of 5192 backedges. 0 proven. 1408 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2025-01-09 00:55:06,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 00:55:06,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767263279] [2025-01-09 00:55:06,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767263279] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 00:55:06,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1295735030] [2025-01-09 00:55:06,477 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-01-09 00:55:06,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 00:55:06,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 00:55:06,481 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 00:55:06,485 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 00:55:06,590 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 313 statements into 2 equivalence classes. [2025-01-09 00:55:06,655 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 313 of 313 statements. [2025-01-09 00:55:06,655 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-01-09 00:55:06,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:55:06,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 603 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-01-09 00:55:06,672 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 00:55:06,944 INFO L134 CoverageAnalysis]: Checked inductivity of 5192 backedges. 0 proven. 1408 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2025-01-09 00:55:06,944 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 00:55:07,882 INFO L134 CoverageAnalysis]: Checked inductivity of 5192 backedges. 0 proven. 1408 refuted. 0 times theorem prover too weak. 3784 trivial. 0 not checked. [2025-01-09 00:55:07,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1295735030] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 00:55:07,883 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 00:55:07,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 48 [2025-01-09 00:55:07,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286578111] [2025-01-09 00:55:07,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 00:55:07,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2025-01-09 00:55:07,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 00:55:07,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2025-01-09 00:55:07,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2025-01-09 00:55:07,887 INFO L87 Difference]: Start difference. First operand 164 states and 251 transitions. Second operand has 48 states, 48 states have (on average 3.875) internal successors, (186), 48 states have internal predecessors, (186), 44 states have call successors, (88), 1 states have call predecessors, (88), 1 states have return successors, (88), 44 states have call predecessors, (88), 44 states have call successors, (88) [2025-01-09 00:55:08,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 00:55:08,232 INFO L93 Difference]: Finished difference Result 335 states and 541 transitions. [2025-01-09 00:55:08,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-01-09 00:55:08,233 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 3.875) internal successors, (186), 48 states have internal predecessors, (186), 44 states have call successors, (88), 1 states have call predecessors, (88), 1 states have return successors, (88), 44 states have call predecessors, (88), 44 states have call successors, (88) Word has length 313 [2025-01-09 00:55:08,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 00:55:08,237 INFO L225 Difference]: With dead ends: 335 [2025-01-09 00:55:08,237 INFO L226 Difference]: Without dead ends: 332 [2025-01-09 00:55:08,239 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 649 GetRequests, 603 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2025-01-09 00:55:08,240 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 399 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 00:55:08,240 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 290 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 00:55:08,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2025-01-09 00:55:08,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2025-01-09 00:55:08,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 238 states have (on average 1.3907563025210083) internal successors, (331), 238 states have internal predecessors, (331), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2025-01-09 00:55:08,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 515 transitions. [2025-01-09 00:55:08,271 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 515 transitions. Word has length 313 [2025-01-09 00:55:08,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 00:55:08,272 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 515 transitions. [2025-01-09 00:55:08,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 3.875) internal successors, (186), 48 states have internal predecessors, (186), 44 states have call successors, (88), 1 states have call predecessors, (88), 1 states have return successors, (88), 44 states have call predecessors, (88), 44 states have call successors, (88) [2025-01-09 00:55:08,272 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 515 transitions. [2025-01-09 00:55:08,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 650 [2025-01-09 00:55:08,289 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:55:08,290 INFO L218 NwaCegarLoop]: trace histogram [92, 92, 92, 46, 46, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1] [2025-01-09 00:55:08,297 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 00:55:08,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 00:55:08,490 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:55:08,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:55:08,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1780330042, now seen corresponding path program 5 times [2025-01-09 00:55:08,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:55:08,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183704771] [2025-01-09 00:55:08,491 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-09 00:55:08,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:55:08,534 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 649 statements into 67 equivalence classes. [2025-01-09 00:55:08,681 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 67 check-sat command(s) and asserted 649 of 649 statements. [2025-01-09 00:55:08,681 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 67 check-sat command(s) [2025-01-09 00:55:08,682 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:55:10,714 INFO L134 CoverageAnalysis]: Checked inductivity of 23000 backedges. 0 proven. 6256 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2025-01-09 00:55:10,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 00:55:10,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183704771] [2025-01-09 00:55:10,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183704771] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 00:55:10,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590877276] [2025-01-09 00:55:10,715 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-01-09 00:55:10,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 00:55:10,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 00:55:10,717 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 00:55:10,722 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 00:55:10,821 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 649 statements into 67 equivalence classes. [2025-01-09 00:55:11,024 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 67 check-sat command(s) and asserted 649 of 649 statements. [2025-01-09 00:55:11,024 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 67 check-sat command(s) [2025-01-09 00:55:11,025 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:55:11,028 INFO L256 TraceCheckSpWp]: Trace formula consists of 1227 conjuncts, 48 conjuncts are in the unsatisfiable core [2025-01-09 00:55:11,036 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 00:55:11,287 INFO L134 CoverageAnalysis]: Checked inductivity of 23000 backedges. 0 proven. 6256 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2025-01-09 00:55:11,288 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 00:55:13,729 INFO L134 CoverageAnalysis]: Checked inductivity of 23000 backedges. 0 proven. 6256 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2025-01-09 00:55:13,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590877276] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 00:55:13,730 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 00:55:13,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 96 [2025-01-09 00:55:13,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149229381] [2025-01-09 00:55:13,730 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 00:55:13,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2025-01-09 00:55:13,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 00:55:13,733 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2025-01-09 00:55:13,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2025-01-09 00:55:13,736 INFO L87 Difference]: Start difference. First operand 332 states and 515 transitions. Second operand has 96 states, 96 states have (on average 3.9375) internal successors, (378), 96 states have internal predecessors, (378), 92 states have call successors, (184), 1 states have call predecessors, (184), 1 states have return successors, (184), 92 states have call predecessors, (184), 92 states have call successors, (184) [2025-01-09 00:55:14,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 00:55:14,882 INFO L93 Difference]: Finished difference Result 671 states and 1093 transitions. [2025-01-09 00:55:14,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2025-01-09 00:55:14,882 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 3.9375) internal successors, (378), 96 states have internal predecessors, (378), 92 states have call successors, (184), 1 states have call predecessors, (184), 1 states have return successors, (184), 92 states have call predecessors, (184), 92 states have call successors, (184) Word has length 649 [2025-01-09 00:55:14,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 00:55:14,889 INFO L225 Difference]: With dead ends: 671 [2025-01-09 00:55:14,890 INFO L226 Difference]: Without dead ends: 668 [2025-01-09 00:55:14,892 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1345 GetRequests, 1251 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2025-01-09 00:55:14,893 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 1185 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1189 SdHoareTripleChecker+Valid, 522 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 00:55:14,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1189 Valid, 522 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 00:55:14,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2025-01-09 00:55:14,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 668. [2025-01-09 00:55:14,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 668 states, 478 states have (on average 1.395397489539749) internal successors, (667), 478 states have internal predecessors, (667), 188 states have call successors, (188), 1 states have call predecessors, (188), 1 states have return successors, (188), 188 states have call predecessors, (188), 188 states have call successors, (188) [2025-01-09 00:55:14,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 668 states to 668 states and 1043 transitions. [2025-01-09 00:55:14,917 INFO L78 Accepts]: Start accepts. Automaton has 668 states and 1043 transitions. Word has length 649 [2025-01-09 00:55:14,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 00:55:14,918 INFO L471 AbstractCegarLoop]: Abstraction has 668 states and 1043 transitions. [2025-01-09 00:55:14,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 3.9375) internal successors, (378), 96 states have internal predecessors, (378), 92 states have call successors, (184), 1 states have call predecessors, (184), 1 states have return successors, (184), 92 states have call predecessors, (184), 92 states have call successors, (184) [2025-01-09 00:55:14,919 INFO L276 IsEmpty]: Start isEmpty. Operand 668 states and 1043 transitions. [2025-01-09 00:55:14,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1322 [2025-01-09 00:55:14,947 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:55:14,948 INFO L218 NwaCegarLoop]: trace histogram [188, 188, 188, 94, 94, 94, 94, 94, 94, 94, 94, 1, 1, 1, 1, 1] [2025-01-09 00:55:14,956 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 00:55:15,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 00:55:15,152 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:55:15,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:55:15,153 INFO L85 PathProgramCache]: Analyzing trace with hash 16767558, now seen corresponding path program 6 times [2025-01-09 00:55:15,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:55:15,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164237560] [2025-01-09 00:55:15,153 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-09 00:55:15,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:55:15,220 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 1321 statements into 134 equivalence classes. [2025-01-09 00:55:15,512 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 134 check-sat command(s) and asserted 1321 of 1321 statements. [2025-01-09 00:55:15,512 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 134 check-sat command(s) [2025-01-09 00:55:15,512 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:55:23,088 INFO L134 CoverageAnalysis]: Checked inductivity of 96632 backedges. 0 proven. 26320 refuted. 0 times theorem prover too weak. 70312 trivial. 0 not checked. [2025-01-09 00:55:23,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 00:55:23,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164237560] [2025-01-09 00:55:23,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164237560] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 00:55:23,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143801541] [2025-01-09 00:55:23,089 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-01-09 00:55:23,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 00:55:23,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 00:55:23,091 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 00:55:23,095 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 00:55:23,323 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 1321 statements into 134 equivalence classes. [2025-01-09 00:55:24,080 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 134 check-sat command(s) and asserted 1321 of 1321 statements. [2025-01-09 00:55:24,081 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 134 check-sat command(s) [2025-01-09 00:55:24,081 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:55:24,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 2475 conjuncts, 96 conjuncts are in the unsatisfiable core [2025-01-09 00:55:24,113 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 00:55:24,703 INFO L134 CoverageAnalysis]: Checked inductivity of 96632 backedges. 0 proven. 26320 refuted. 0 times theorem prover too weak. 70312 trivial. 0 not checked. [2025-01-09 00:55:24,704 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 00:55:33,519 INFO L134 CoverageAnalysis]: Checked inductivity of 96632 backedges. 0 proven. 26320 refuted. 0 times theorem prover too weak. 70312 trivial. 0 not checked. [2025-01-09 00:55:33,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143801541] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 00:55:33,520 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 00:55:33,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97, 97] total 193 [2025-01-09 00:55:33,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258002155] [2025-01-09 00:55:33,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 00:55:33,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 193 states [2025-01-09 00:55:33,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 00:55:33,527 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 193 interpolants. [2025-01-09 00:55:33,532 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18528, Invalid=18528, Unknown=0, NotChecked=0, Total=37056 [2025-01-09 00:55:33,534 INFO L87 Difference]: Start difference. First operand 668 states and 1043 transitions. Second operand has 193 states, 193 states have (on average 3.9740932642487046) internal successors, (767), 193 states have internal predecessors, (767), 189 states have call successors, (378), 1 states have call predecessors, (378), 1 states have return successors, (378), 189 states have call predecessors, (378), 189 states have call successors, (378) [2025-01-09 00:55:46,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 00:55:46,210 INFO L93 Difference]: Finished difference Result 1343 states and 2197 transitions. [2025-01-09 00:55:46,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2025-01-09 00:55:46,212 INFO L78 Accepts]: Start accepts. Automaton has has 193 states, 193 states have (on average 3.9740932642487046) internal successors, (767), 193 states have internal predecessors, (767), 189 states have call successors, (378), 1 states have call predecessors, (378), 1 states have return successors, (378), 189 states have call predecessors, (378), 189 states have call successors, (378) Word has length 1321 [2025-01-09 00:55:46,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 00:55:46,237 INFO L225 Difference]: With dead ends: 1343 [2025-01-09 00:55:46,240 INFO L226 Difference]: Without dead ends: 1340 [2025-01-09 00:55:46,244 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2737 GetRequests, 2546 SyntacticMatches, 0 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 376 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=18528, Invalid=18528, Unknown=0, NotChecked=0, Total=37056 [2025-01-09 00:55:46,250 INFO L435 NwaCegarLoop]: 17 mSDtfsCounter, 3252 mSDsluCounter, 998 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3256 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-01-09 00:55:46,250 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3256 Valid, 1015 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-01-09 00:55:46,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2025-01-09 00:55:46,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1340. [2025-01-09 00:55:46,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 958 states have (on average 1.3977035490605427) internal successors, (1339), 958 states have internal predecessors, (1339), 380 states have call successors, (380), 1 states have call predecessors, (380), 1 states have return successors, (380), 380 states have call predecessors, (380), 380 states have call successors, (380) [2025-01-09 00:55:46,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 2099 transitions. [2025-01-09 00:55:46,347 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 2099 transitions. Word has length 1321 [2025-01-09 00:55:46,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 00:55:46,351 INFO L471 AbstractCegarLoop]: Abstraction has 1340 states and 2099 transitions. [2025-01-09 00:55:46,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 193 states, 193 states have (on average 3.9740932642487046) internal successors, (767), 193 states have internal predecessors, (767), 189 states have call successors, (378), 1 states have call predecessors, (378), 1 states have return successors, (378), 189 states have call predecessors, (378), 189 states have call successors, (378) [2025-01-09 00:55:46,352 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 2099 transitions. [2025-01-09 00:55:46,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2666 [2025-01-09 00:55:46,408 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 00:55:46,409 INFO L218 NwaCegarLoop]: trace histogram [380, 380, 380, 190, 190, 190, 190, 190, 190, 190, 190, 1, 1, 1, 1, 1] [2025-01-09 00:55:46,423 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 00:55:46,613 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,SelfDestructingSolverStorable6 [2025-01-09 00:55:46,613 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 00:55:46,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 00:55:46,615 INFO L85 PathProgramCache]: Analyzing trace with hash -352523450, now seen corresponding path program 7 times [2025-01-09 00:55:46,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 00:55:46,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574415425] [2025-01-09 00:55:46,615 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-09 00:55:46,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 00:55:46,719 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2665 statements into 1 equivalence classes. [2025-01-09 00:55:46,835 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2665 of 2665 statements. [2025-01-09 00:55:46,836 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:55:46,836 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:56:24,885 INFO L134 CoverageAnalysis]: Checked inductivity of 395960 backedges. 0 proven. 107920 refuted. 0 times theorem prover too weak. 288040 trivial. 0 not checked. [2025-01-09 00:56:24,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 00:56:24,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574415425] [2025-01-09 00:56:24,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574415425] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 00:56:24,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624021679] [2025-01-09 00:56:24,886 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-01-09 00:56:24,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 00:56:24,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 00:56:24,888 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 00:56:24,890 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 00:56:25,310 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2665 statements into 1 equivalence classes. [2025-01-09 00:56:25,681 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2665 of 2665 statements. [2025-01-09 00:56:25,681 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 00:56:25,682 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 00:56:25,702 INFO L256 TraceCheckSpWp]: Trace formula consists of 4971 conjuncts, 192 conjuncts are in the unsatisfiable core [2025-01-09 00:56:25,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 00:56:26,654 INFO L134 CoverageAnalysis]: Checked inductivity of 395960 backedges. 0 proven. 107920 refuted. 0 times theorem prover too weak. 288040 trivial. 0 not checked. [2025-01-09 00:56:26,655 INFO L312 TraceCheckSpWp]: Computing backward predicates...