./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc 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/hardness-nfm22/hardness_operatoramount_amount500_file-4.i -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 86050a320677a833f953e3d24f630a372e53eb7ac1e89a394e20853921226e93 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 02:40:00,606 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 02:40:00,665 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-06 02:40:00,673 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 02:40:00,673 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 02:40:00,697 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 02:40:00,698 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 02:40:00,698 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 02:40:00,698 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 02:40:00,698 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 02:40:00,699 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 02:40:00,699 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 02:40:00,699 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 02:40:00,700 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 02:40:00,700 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 02:40:00,700 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 02:40:00,700 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 02:40:00,700 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 02:40:00,700 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 02:40:00,701 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 02:40:00,701 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 02:40:00,701 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 02:40:00,701 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 02:40:00,701 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 02:40:00,701 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 02:40:00,701 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 02:40:00,701 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 02:40:00,701 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 02:40:00,701 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 02:40:00,701 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 02:40:00,702 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 02:40:00,702 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 02:40:00,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 02:40:00,702 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 02:40:00,702 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 02:40:00,702 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 02:40:00,702 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 02:40:00,702 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 02:40:00,703 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 02:40:00,703 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 02:40:00,703 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 02:40:00,703 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 02:40:00,703 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 02:40:00,703 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 -> 86050a320677a833f953e3d24f630a372e53eb7ac1e89a394e20853921226e93 [2025-02-06 02:40:00,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 02:40:00,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 02:40:00,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 02:40:00,907 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 02:40:00,907 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 02:40:00,908 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-4.i [2025-02-06 02:40:02,192 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8c92a668e/f62d2d05afc440eb8ffc5c4d5d76d741/FLAGbeafadae6 [2025-02-06 02:40:02,501 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 02:40:02,505 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-4.i [2025-02-06 02:40:02,533 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8c92a668e/f62d2d05afc440eb8ffc5c4d5d76d741/FLAGbeafadae6 [2025-02-06 02:40:02,733 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8c92a668e/f62d2d05afc440eb8ffc5c4d5d76d741 [2025-02-06 02:40:02,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 02:40:02,736 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 02:40:02,737 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 02:40:02,737 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 02:40:02,740 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 02:40:02,741 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:40:02" (1/1) ... [2025-02-06 02:40:02,742 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4414e23c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:40:02, skipping insertion in model container [2025-02-06 02:40:02,743 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:40:02" (1/1) ... [2025-02-06 02:40:02,767 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 02:40:02,886 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/hardness-nfm22/hardness_operatoramount_amount500_file-4.i[915,928] [2025-02-06 02:40:03,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 02:40:03,064 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 02:40:03,074 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/hardness-nfm22/hardness_operatoramount_amount500_file-4.i[915,928] [2025-02-06 02:40:03,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 02:40:03,202 INFO L204 MainTranslator]: Completed translation [2025-02-06 02:40:03,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:40:03 WrapperNode [2025-02-06 02:40:03,203 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 02:40:03,204 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 02:40:03,207 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 02:40:03,207 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 02:40:03,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:40:03" (1/1) ... [2025-02-06 02:40:03,229 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:40:03" (1/1) ... [2025-02-06 02:40:03,297 INFO L138 Inliner]: procedures = 26, calls = 74, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 621 [2025-02-06 02:40:03,298 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 02:40:03,298 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 02:40:03,298 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 02:40:03,298 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 02:40:03,309 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:40:03" (1/1) ... [2025-02-06 02:40:03,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:40:03" (1/1) ... [2025-02-06 02:40:03,329 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:40:03" (1/1) ... [2025-02-06 02:40:03,410 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]. [2025-02-06 02:40:03,410 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:40:03" (1/1) ... [2025-02-06 02:40:03,410 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:40:03" (1/1) ... [2025-02-06 02:40:03,441 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:40:03" (1/1) ... [2025-02-06 02:40:03,451 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:40:03" (1/1) ... [2025-02-06 02:40:03,459 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:40:03" (1/1) ... [2025-02-06 02:40:03,467 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:40:03" (1/1) ... [2025-02-06 02:40:03,478 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 02:40:03,479 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 02:40:03,480 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 02:40:03,480 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 02:40:03,481 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:40:03" (1/1) ... [2025-02-06 02:40:03,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 02:40:03,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:40:03,514 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) [2025-02-06 02:40:03,546 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 [2025-02-06 02:40:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 02:40:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 02:40:03,563 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 02:40:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 02:40:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 02:40:03,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 02:40:03,681 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 02:40:03,682 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 02:40:04,490 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L643: havoc property_#t~bitwise42#1;havoc property_#t~short43#1;havoc property_#t~ite45#1;havoc property_#t~bitwise44#1;havoc property_#t~short46#1; [2025-02-06 02:40:04,622 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2025-02-06 02:40:04,622 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 02:40:04,645 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 02:40:04,645 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 02:40:04,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:40:04 BoogieIcfgContainer [2025-02-06 02:40:04,646 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 02:40:04,647 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 02:40:04,648 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 02:40:04,655 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 02:40:04,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 02:40:02" (1/3) ... [2025-02-06 02:40:04,656 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3567532e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:40:04, skipping insertion in model container [2025-02-06 02:40:04,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:40:03" (2/3) ... [2025-02-06 02:40:04,656 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3567532e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:40:04, skipping insertion in model container [2025-02-06 02:40:04,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:40:04" (3/3) ... [2025-02-06 02:40:04,657 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-4.i [2025-02-06 02:40:04,671 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 02:40:04,673 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount500_file-4.i that has 2 procedures, 241 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 02:40:04,716 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 02:40:04,724 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;@14e159aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 02:40:04,724 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 02:40:04,727 INFO L276 IsEmpty]: Start isEmpty. Operand has 241 states, 177 states have (on average 1.5423728813559323) internal successors, (273), 178 states have internal predecessors, (273), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2025-02-06 02:40:04,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2025-02-06 02:40:04,739 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:40:04,739 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:40:04,739 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:40:04,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:40:04,743 INFO L85 PathProgramCache]: Analyzing trace with hash 765449289, now seen corresponding path program 1 times [2025-02-06 02:40:04,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:40:04,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77583608] [2025-02-06 02:40:04,748 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:40:04,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:40:04,876 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 428 statements into 1 equivalence classes. [2025-02-06 02:40:04,920 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 428 of 428 statements. [2025-02-06 02:40:04,922 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:40:04,922 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:40:05,343 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 7200 trivial. 0 not checked. [2025-02-06 02:40:05,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:40:05,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77583608] [2025-02-06 02:40:05,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77583608] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:40:05,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003147570] [2025-02-06 02:40:05,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:40:05,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:40:05,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:40:05,347 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) [2025-02-06 02:40:05,349 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 [2025-02-06 02:40:05,517 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 428 statements into 1 equivalence classes. [2025-02-06 02:40:05,720 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 428 of 428 statements. [2025-02-06 02:40:05,720 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:40:05,720 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:40:05,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 1139 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 02:40:05,743 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:40:05,780 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 7200 trivial. 0 not checked. [2025-02-06 02:40:05,780 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 02:40:05,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003147570] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:40:05,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 02:40:05,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 02:40:05,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070321667] [2025-02-06 02:40:05,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:40:05,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 02:40:05,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:40:05,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 02:40:05,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 02:40:05,810 INFO L87 Difference]: Start difference. First operand has 241 states, 177 states have (on average 1.5423728813559323) internal successors, (273), 178 states have internal predecessors, (273), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 2 states, 2 states have (on average 64.0) internal successors, (128), 2 states have internal predecessors, (128), 2 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 2 states have call successors, (61) [2025-02-06 02:40:05,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:40:05,880 INFO L93 Difference]: Finished difference Result 474 states and 842 transitions. [2025-02-06 02:40:05,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 02:40:05,883 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 64.0) internal successors, (128), 2 states have internal predecessors, (128), 2 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 2 states have call successors, (61) Word has length 428 [2025-02-06 02:40:05,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:40:05,896 INFO L225 Difference]: With dead ends: 474 [2025-02-06 02:40:05,896 INFO L226 Difference]: Without dead ends: 236 [2025-02-06 02:40:05,908 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 429 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 02:40:05,910 INFO L435 NwaCegarLoop]: 381 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 02:40:05,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 381 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 02:40:05,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2025-02-06 02:40:05,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2025-02-06 02:40:05,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 173 states have (on average 1.5202312138728324) internal successors, (263), 173 states have internal predecessors, (263), 61 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2025-02-06 02:40:05,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 385 transitions. [2025-02-06 02:40:05,984 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 385 transitions. Word has length 428 [2025-02-06 02:40:05,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:40:05,985 INFO L471 AbstractCegarLoop]: Abstraction has 236 states and 385 transitions. [2025-02-06 02:40:05,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 64.0) internal successors, (128), 2 states have internal predecessors, (128), 2 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 2 states have call successors, (61) [2025-02-06 02:40:05,986 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 385 transitions. [2025-02-06 02:40:05,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2025-02-06 02:40:05,996 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:40:05,996 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:40:06,008 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 02:40:06,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-06 02:40:06,197 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:40:06,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:40:06,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1517809774, now seen corresponding path program 1 times [2025-02-06 02:40:06,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:40:06,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957528842] [2025-02-06 02:40:06,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:40:06,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:40:06,266 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 428 statements into 1 equivalence classes. [2025-02-06 02:40:06,445 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 428 of 428 statements. [2025-02-06 02:40:06,448 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:40:06,448 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:40:06,912 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2025-02-06 02:40:06,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:40:06,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957528842] [2025-02-06 02:40:06,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957528842] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:40:06,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:40:06,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 02:40:06,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215071887] [2025-02-06 02:40:06,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:40:06,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 02:40:06,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:40:06,919 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 02:40:06,919 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 02:40:06,919 INFO L87 Difference]: Start difference. First operand 236 states and 385 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2025-02-06 02:40:07,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:40:07,070 INFO L93 Difference]: Finished difference Result 600 states and 981 transitions. [2025-02-06 02:40:07,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 02:40:07,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 428 [2025-02-06 02:40:07,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:40:07,076 INFO L225 Difference]: With dead ends: 600 [2025-02-06 02:40:07,076 INFO L226 Difference]: Without dead ends: 367 [2025-02-06 02:40:07,077 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 [2025-02-06 02:40:07,078 INFO L435 NwaCegarLoop]: 466 mSDtfsCounter, 167 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 812 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:40:07,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 812 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 02:40:07,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2025-02-06 02:40:07,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 364. [2025-02-06 02:40:07,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 296 states have (on average 1.5574324324324325) internal successors, (461), 297 states have internal predecessors, (461), 65 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (65), 64 states have call predecessors, (65), 65 states have call successors, (65) [2025-02-06 02:40:07,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 591 transitions. [2025-02-06 02:40:07,124 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 591 transitions. Word has length 428 [2025-02-06 02:40:07,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:40:07,126 INFO L471 AbstractCegarLoop]: Abstraction has 364 states and 591 transitions. [2025-02-06 02:40:07,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2025-02-06 02:40:07,127 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 591 transitions. [2025-02-06 02:40:07,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2025-02-06 02:40:07,132 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:40:07,132 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:40:07,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 02:40:07,132 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:40:07,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:40:07,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1849110990, now seen corresponding path program 1 times [2025-02-06 02:40:07,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:40:07,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855866742] [2025-02-06 02:40:07,136 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:40:07,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:40:07,192 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 428 statements into 1 equivalence classes. [2025-02-06 02:40:07,965 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 428 of 428 statements. [2025-02-06 02:40:07,965 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:40:07,965 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:40:08,998 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2025-02-06 02:40:08,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:40:08,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855866742] [2025-02-06 02:40:08,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855866742] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:40:08,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:40:08,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 02:40:08,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738209432] [2025-02-06 02:40:08,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:40:08,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 02:40:09,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:40:09,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 02:40:09,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:40:09,002 INFO L87 Difference]: Start difference. First operand 364 states and 591 transitions. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2025-02-06 02:40:09,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:40:09,179 INFO L93 Difference]: Finished difference Result 957 states and 1549 transitions. [2025-02-06 02:40:09,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 02:40:09,184 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 428 [2025-02-06 02:40:09,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:40:09,189 INFO L225 Difference]: With dead ends: 957 [2025-02-06 02:40:09,189 INFO L226 Difference]: Without dead ends: 596 [2025-02-06 02:40:09,190 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:40:09,191 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 527 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:40:09,191 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 746 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 02:40:09,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2025-02-06 02:40:09,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 386. [2025-02-06 02:40:09,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 311 states have (on average 1.5337620578778135) internal successors, (477), 313 states have internal predecessors, (477), 71 states have call successors, (71), 3 states have call predecessors, (71), 3 states have return successors, (71), 69 states have call predecessors, (71), 71 states have call successors, (71) [2025-02-06 02:40:09,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 619 transitions. [2025-02-06 02:40:09,222 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 619 transitions. Word has length 428 [2025-02-06 02:40:09,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:40:09,225 INFO L471 AbstractCegarLoop]: Abstraction has 386 states and 619 transitions. [2025-02-06 02:40:09,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2025-02-06 02:40:09,225 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 619 transitions. [2025-02-06 02:40:09,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2025-02-06 02:40:09,229 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:40:09,229 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:40:09,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 02:40:09,230 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:40:09,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:40:09,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1828773615, now seen corresponding path program 1 times [2025-02-06 02:40:09,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:40:09,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659353229] [2025-02-06 02:40:09,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:40:09,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:40:09,273 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 428 statements into 1 equivalence classes. [2025-02-06 02:40:10,974 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 428 of 428 statements. [2025-02-06 02:40:10,974 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:40:10,974 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:40:12,008 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2025-02-06 02:40:12,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:40:12,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659353229] [2025-02-06 02:40:12,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659353229] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:40:12,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:40:12,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 02:40:12,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978185826] [2025-02-06 02:40:12,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:40:12,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 02:40:12,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:40:12,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 02:40:12,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 02:40:12,010 INFO L87 Difference]: Start difference. First operand 386 states and 619 transitions. Second operand has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2025-02-06 02:40:12,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:40:12,498 INFO L93 Difference]: Finished difference Result 1295 states and 2089 transitions. [2025-02-06 02:40:12,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 02:40:12,502 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 428 [2025-02-06 02:40:12,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:40:12,510 INFO L225 Difference]: With dead ends: 1295 [2025-02-06 02:40:12,510 INFO L226 Difference]: Without dead ends: 922 [2025-02-06 02:40:12,515 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2025-02-06 02:40:12,515 INFO L435 NwaCegarLoop]: 498 mSDtfsCounter, 449 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 449 SdHoareTripleChecker+Valid, 1981 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 02:40:12,516 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [449 Valid, 1981 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 02:40:12,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 922 states. [2025-02-06 02:40:12,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 922 to 757. [2025-02-06 02:40:12,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 757 states, 614 states have (on average 1.5342019543973942) internal successors, (942), 617 states have internal predecessors, (942), 136 states have call successors, (136), 6 states have call predecessors, (136), 6 states have return successors, (136), 133 states have call predecessors, (136), 136 states have call successors, (136) [2025-02-06 02:40:12,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 757 states to 757 states and 1214 transitions. [2025-02-06 02:40:12,605 INFO L78 Accepts]: Start accepts. Automaton has 757 states and 1214 transitions. Word has length 428 [2025-02-06 02:40:12,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:40:12,606 INFO L471 AbstractCegarLoop]: Abstraction has 757 states and 1214 transitions. [2025-02-06 02:40:12,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.0) internal successors, (126), 6 states have internal predecessors, (126), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2025-02-06 02:40:12,606 INFO L276 IsEmpty]: Start isEmpty. Operand 757 states and 1214 transitions. [2025-02-06 02:40:12,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2025-02-06 02:40:12,610 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:40:12,610 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:40:12,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 02:40:12,610 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:40:12,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:40:12,611 INFO L85 PathProgramCache]: Analyzing trace with hash -195660116, now seen corresponding path program 1 times [2025-02-06 02:40:12,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:40:12,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359936332] [2025-02-06 02:40:12,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:40:12,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:40:12,645 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 429 statements into 1 equivalence classes. [2025-02-06 02:40:14,731 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 429 of 429 statements. [2025-02-06 02:40:14,731 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:40:14,731 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:40:15,145 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 12 proven. 168 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2025-02-06 02:40:15,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:40:15,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359936332] [2025-02-06 02:40:15,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359936332] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:40:15,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810888805] [2025-02-06 02:40:15,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:40:15,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:40:15,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:40:15,151 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) [2025-02-06 02:40:15,154 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 [2025-02-06 02:40:15,296 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 429 statements into 1 equivalence classes. [2025-02-06 02:40:15,448 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 429 of 429 statements. [2025-02-06 02:40:15,448 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:40:15,448 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:40:15,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 1142 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 02:40:15,462 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:40:15,841 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 1828 proven. 24 refuted. 0 times theorem prover too weak. 5468 trivial. 0 not checked. [2025-02-06 02:40:15,843 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:40:16,235 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 156 proven. 24 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2025-02-06 02:40:16,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810888805] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 02:40:16,239 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 02:40:16,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2025-02-06 02:40:16,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992032284] [2025-02-06 02:40:16,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 02:40:16,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 02:40:16,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:40:16,241 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 02:40:16,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-02-06 02:40:16,242 INFO L87 Difference]: Start difference. First operand 757 states and 1214 transitions. Second operand has 9 states, 9 states have (on average 33.0) internal successors, (297), 9 states have internal predecessors, (297), 4 states have call successors, (125), 2 states have call predecessors, (125), 4 states have return successors, (127), 4 states have call predecessors, (127), 4 states have call successors, (127) [2025-02-06 02:40:16,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:40:16,889 INFO L93 Difference]: Finished difference Result 1327 states and 2092 transitions. [2025-02-06 02:40:16,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-06 02:40:16,890 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 33.0) internal successors, (297), 9 states have internal predecessors, (297), 4 states have call successors, (125), 2 states have call predecessors, (125), 4 states have return successors, (127), 4 states have call predecessors, (127), 4 states have call successors, (127) Word has length 429 [2025-02-06 02:40:16,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:40:16,894 INFO L225 Difference]: With dead ends: 1327 [2025-02-06 02:40:16,894 INFO L226 Difference]: Without dead ends: 583 [2025-02-06 02:40:16,896 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 871 GetRequests, 855 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=201, Unknown=0, NotChecked=0, Total=306 [2025-02-06 02:40:16,896 INFO L435 NwaCegarLoop]: 291 mSDtfsCounter, 557 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-06 02:40:16,897 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 749 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-06 02:40:16,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2025-02-06 02:40:16,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 515. [2025-02-06 02:40:16,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 375 states have (on average 1.4213333333333333) internal successors, (533), 376 states have internal predecessors, (533), 128 states have call successors, (128), 11 states have call predecessors, (128), 11 states have return successors, (128), 127 states have call predecessors, (128), 128 states have call successors, (128) [2025-02-06 02:40:16,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 789 transitions. [2025-02-06 02:40:16,936 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 789 transitions. Word has length 429 [2025-02-06 02:40:16,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:40:16,936 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 789 transitions. [2025-02-06 02:40:16,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 33.0) internal successors, (297), 9 states have internal predecessors, (297), 4 states have call successors, (125), 2 states have call predecessors, (125), 4 states have return successors, (127), 4 states have call predecessors, (127), 4 states have call successors, (127) [2025-02-06 02:40:16,937 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 789 transitions. [2025-02-06 02:40:16,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2025-02-06 02:40:16,941 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:40:16,941 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:40:16,952 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-06 02:40:17,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:40:17,144 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:40:17,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:40:17,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1492157150, now seen corresponding path program 1 times [2025-02-06 02:40:17,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:40:17,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088213945] [2025-02-06 02:40:17,145 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:40:17,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:40:17,191 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 430 statements into 1 equivalence classes. [2025-02-06 02:40:17,489 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 430 of 430 statements. [2025-02-06 02:40:17,489 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:40:17,489 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:40:18,012 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2025-02-06 02:40:18,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:40:18,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088213945] [2025-02-06 02:40:18,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088213945] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:40:18,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:40:18,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 02:40:18,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174088043] [2025-02-06 02:40:18,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:40:18,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 02:40:18,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:40:18,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 02:40:18,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:40:18,016 INFO L87 Difference]: Start difference. First operand 515 states and 789 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2025-02-06 02:40:18,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:40:18,123 INFO L93 Difference]: Finished difference Result 1237 states and 1893 transitions. [2025-02-06 02:40:18,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 02:40:18,124 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 430 [2025-02-06 02:40:18,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:40:18,129 INFO L225 Difference]: With dead ends: 1237 [2025-02-06 02:40:18,130 INFO L226 Difference]: Without dead ends: 739 [2025-02-06 02:40:18,131 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:40:18,132 INFO L435 NwaCegarLoop]: 375 mSDtfsCounter, 206 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 794 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:40:18,133 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 794 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 02:40:18,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2025-02-06 02:40:18,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 605. [2025-02-06 02:40:18,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 465 states have (on average 1.4623655913978495) internal successors, (680), 466 states have internal predecessors, (680), 128 states have call successors, (128), 11 states have call predecessors, (128), 11 states have return successors, (128), 127 states have call predecessors, (128), 128 states have call successors, (128) [2025-02-06 02:40:18,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 936 transitions. [2025-02-06 02:40:18,177 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 936 transitions. Word has length 430 [2025-02-06 02:40:18,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:40:18,178 INFO L471 AbstractCegarLoop]: Abstraction has 605 states and 936 transitions. [2025-02-06 02:40:18,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2025-02-06 02:40:18,179 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 936 transitions. [2025-02-06 02:40:18,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2025-02-06 02:40:18,184 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:40:18,184 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:40:18,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 02:40:18,184 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:40:18,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:40:18,184 INFO L85 PathProgramCache]: Analyzing trace with hash -545899139, now seen corresponding path program 1 times [2025-02-06 02:40:18,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:40:18,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967150780] [2025-02-06 02:40:18,185 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:40:18,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:40:18,212 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 430 statements into 1 equivalence classes. [2025-02-06 02:40:19,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 430 of 430 statements. [2025-02-06 02:40:19,589 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:40:19,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:40:19,924 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 18 proven. 162 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2025-02-06 02:40:19,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:40:19,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967150780] [2025-02-06 02:40:19,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967150780] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:40:19,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952111048] [2025-02-06 02:40:19,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:40:19,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:40:19,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:40:19,936 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) [2025-02-06 02:40:19,938 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 [2025-02-06 02:40:20,071 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 430 statements into 1 equivalence classes. [2025-02-06 02:40:20,220 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 430 of 430 statements. [2025-02-06 02:40:20,220 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:40:20,220 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:40:20,227 INFO L256 TraceCheckSpWp]: Trace formula consists of 1142 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 02:40:20,235 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:40:20,728 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 1368 proven. 162 refuted. 0 times theorem prover too weak. 5790 trivial. 0 not checked. [2025-02-06 02:40:20,729 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:40:21,123 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 18 proven. 162 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2025-02-06 02:40:21,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952111048] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 02:40:21,124 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 02:40:21,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2025-02-06 02:40:21,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084648233] [2025-02-06 02:40:21,124 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 02:40:21,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 02:40:21,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:40:21,126 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 02:40:21,126 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-02-06 02:40:21,126 INFO L87 Difference]: Start difference. First operand 605 states and 936 transitions. Second operand has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 2 states have call successors, (115), 2 states have call predecessors, (115), 4 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) [2025-02-06 02:40:21,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:40:21,454 INFO L93 Difference]: Finished difference Result 1117 states and 1715 transitions. [2025-02-06 02:40:21,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 02:40:21,455 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 2 states have call successors, (115), 2 states have call predecessors, (115), 4 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) Word has length 430 [2025-02-06 02:40:21,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:40:21,460 INFO L225 Difference]: With dead ends: 1117 [2025-02-06 02:40:21,460 INFO L226 Difference]: Without dead ends: 525 [2025-02-06 02:40:21,462 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 866 GetRequests, 857 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2025-02-06 02:40:21,462 INFO L435 NwaCegarLoop]: 292 mSDtfsCounter, 377 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 356 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 02:40:21,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 750 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 356 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 02:40:21,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2025-02-06 02:40:21,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 515. [2025-02-06 02:40:21,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 373 states have (on average 1.4128686327077749) internal successors, (527), 374 states have internal predecessors, (527), 128 states have call successors, (128), 13 states have call predecessors, (128), 13 states have return successors, (128), 127 states have call predecessors, (128), 128 states have call successors, (128) [2025-02-06 02:40:21,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 783 transitions. [2025-02-06 02:40:21,495 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 783 transitions. Word has length 430 [2025-02-06 02:40:21,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:40:21,496 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 783 transitions. [2025-02-06 02:40:21,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.571428571428573) internal successors, (137), 7 states have internal predecessors, (137), 2 states have call successors, (115), 2 states have call predecessors, (115), 4 states have return successors, (116), 2 states have call predecessors, (116), 2 states have call successors, (116) [2025-02-06 02:40:21,496 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 783 transitions. [2025-02-06 02:40:21,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2025-02-06 02:40:21,502 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:40:21,502 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:40:21,512 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 02:40:21,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:40:21,703 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:40:21,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:40:21,705 INFO L85 PathProgramCache]: Analyzing trace with hash -771279074, now seen corresponding path program 1 times [2025-02-06 02:40:21,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:40:21,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115157928] [2025-02-06 02:40:21,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:40:21,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:40:21,733 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 430 statements into 1 equivalence classes. [2025-02-06 02:40:21,745 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 430 of 430 statements. [2025-02-06 02:40:21,746 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:40:21,746 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:40:21,836 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2025-02-06 02:40:21,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:40:21,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115157928] [2025-02-06 02:40:21,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115157928] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:40:21,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:40:21,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 02:40:21,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263877171] [2025-02-06 02:40:21,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:40:21,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 02:40:21,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:40:21,837 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 02:40:21,837 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 02:40:21,838 INFO L87 Difference]: Start difference. First operand 515 states and 783 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2025-02-06 02:40:21,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:40:21,917 INFO L93 Difference]: Finished difference Result 1144 states and 1748 transitions. [2025-02-06 02:40:21,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 02:40:21,917 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 430 [2025-02-06 02:40:21,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:40:21,923 INFO L225 Difference]: With dead ends: 1144 [2025-02-06 02:40:21,923 INFO L226 Difference]: Without dead ends: 646 [2025-02-06 02:40:21,925 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 [2025-02-06 02:40:21,925 INFO L435 NwaCegarLoop]: 575 mSDtfsCounter, 358 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 793 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 02:40:21,925 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 793 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 02:40:21,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2025-02-06 02:40:21,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 615. [2025-02-06 02:40:21,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 615 states, 415 states have (on average 1.3662650602409638) internal successors, (567), 416 states have internal predecessors, (567), 183 states have call successors, (183), 16 states have call predecessors, (183), 16 states have return successors, (183), 182 states have call predecessors, (183), 183 states have call successors, (183) [2025-02-06 02:40:21,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 615 states to 615 states and 933 transitions. [2025-02-06 02:40:21,963 INFO L78 Accepts]: Start accepts. Automaton has 615 states and 933 transitions. Word has length 430 [2025-02-06 02:40:21,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:40:21,963 INFO L471 AbstractCegarLoop]: Abstraction has 615 states and 933 transitions. [2025-02-06 02:40:21,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2025-02-06 02:40:21,964 INFO L276 IsEmpty]: Start isEmpty. Operand 615 states and 933 transitions. [2025-02-06 02:40:21,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2025-02-06 02:40:21,965 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:40:21,965 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:40:21,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 02:40:21,966 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:40:21,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:40:21,966 INFO L85 PathProgramCache]: Analyzing trace with hash -750941699, now seen corresponding path program 1 times [2025-02-06 02:40:21,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:40:21,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121219184] [2025-02-06 02:40:21,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:40:21,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:40:22,013 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 430 statements into 1 equivalence classes. [2025-02-06 02:40:22,292 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 430 of 430 statements. [2025-02-06 02:40:22,293 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:40:22,293 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:40:22,819 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2025-02-06 02:40:22,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:40:22,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121219184] [2025-02-06 02:40:22,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121219184] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:40:22,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:40:22,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 02:40:22,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981258608] [2025-02-06 02:40:22,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:40:22,820 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 02:40:22,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:40:22,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 02:40:22,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:40:22,821 INFO L87 Difference]: Start difference. First operand 615 states and 933 transitions. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2025-02-06 02:40:23,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:40:23,041 INFO L93 Difference]: Finished difference Result 1237 states and 1859 transitions. [2025-02-06 02:40:23,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 02:40:23,041 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 430 [2025-02-06 02:40:23,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:40:23,045 INFO L225 Difference]: With dead ends: 1237 [2025-02-06 02:40:23,045 INFO L226 Difference]: Without dead ends: 739 [2025-02-06 02:40:23,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 02:40:23,048 INFO L435 NwaCegarLoop]: 372 mSDtfsCounter, 246 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 02:40:23,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 882 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 02:40:23,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2025-02-06 02:40:23,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 526. [2025-02-06 02:40:23,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 385 states have (on average 1.4077922077922078) internal successors, (542), 386 states have internal predecessors, (542), 127 states have call successors, (127), 13 states have call predecessors, (127), 13 states have return successors, (127), 126 states have call predecessors, (127), 127 states have call successors, (127) [2025-02-06 02:40:23,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 796 transitions. [2025-02-06 02:40:23,105 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 796 transitions. Word has length 430 [2025-02-06 02:40:23,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:40:23,107 INFO L471 AbstractCegarLoop]: Abstraction has 526 states and 796 transitions. [2025-02-06 02:40:23,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2025-02-06 02:40:23,107 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 796 transitions. [2025-02-06 02:40:23,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2025-02-06 02:40:23,109 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:40:23,109 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:40:23,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 02:40:23,109 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:40:23,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:40:23,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1748014052, now seen corresponding path program 1 times [2025-02-06 02:40:23,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:40:23,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427900314] [2025-02-06 02:40:23,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:40:23,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:40:23,134 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 430 statements into 1 equivalence classes. [2025-02-06 02:40:24,640 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 430 of 430 statements. [2025-02-06 02:40:24,640 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:40:24,640 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:40:25,224 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 126 proven. 54 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2025-02-06 02:40:25,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:40:25,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427900314] [2025-02-06 02:40:25,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427900314] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:40:25,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390838937] [2025-02-06 02:40:25,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:40:25,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:40:25,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:40:25,227 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) [2025-02-06 02:40:25,229 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 [2025-02-06 02:40:25,368 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 430 statements into 1 equivalence classes. [2025-02-06 02:40:25,536 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 430 of 430 statements. [2025-02-06 02:40:25,536 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:40:25,536 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:40:25,543 INFO L256 TraceCheckSpWp]: Trace formula consists of 1143 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-06 02:40:25,549 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:40:26,217 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 3168 proven. 54 refuted. 0 times theorem prover too weak. 4098 trivial. 0 not checked. [2025-02-06 02:40:26,218 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:40:26,755 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 126 proven. 54 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2025-02-06 02:40:26,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390838937] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 02:40:26,755 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 02:40:26,755 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 16 [2025-02-06 02:40:26,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650010007] [2025-02-06 02:40:26,755 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 02:40:26,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-02-06 02:40:26,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:40:26,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-02-06 02:40:26,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2025-02-06 02:40:26,763 INFO L87 Difference]: Start difference. First operand 526 states and 796 transitions. Second operand has 16 states, 16 states have (on average 19.75) internal successors, (316), 16 states have internal predecessors, (316), 6 states have call successors, (183), 3 states have call predecessors, (183), 6 states have return successors, (183), 6 states have call predecessors, (183), 6 states have call successors, (183) [2025-02-06 02:40:28,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:40:28,220 INFO L93 Difference]: Finished difference Result 1662 states and 2544 transitions. [2025-02-06 02:40:28,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-02-06 02:40:28,221 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 19.75) internal successors, (316), 16 states have internal predecessors, (316), 6 states have call successors, (183), 3 states have call predecessors, (183), 6 states have return successors, (183), 6 states have call predecessors, (183), 6 states have call successors, (183) Word has length 430 [2025-02-06 02:40:28,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:40:28,227 INFO L225 Difference]: With dead ends: 1662 [2025-02-06 02:40:28,227 INFO L226 Difference]: Without dead ends: 1152 [2025-02-06 02:40:28,229 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 877 GetRequests, 854 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=174, Invalid=426, Unknown=0, NotChecked=0, Total=600 [2025-02-06 02:40:28,229 INFO L435 NwaCegarLoop]: 292 mSDtfsCounter, 832 mSDsluCounter, 2501 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 271 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 892 SdHoareTripleChecker+Valid, 2793 SdHoareTripleChecker+Invalid, 1708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 271 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-02-06 02:40:28,230 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [892 Valid, 2793 Invalid, 1708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [271 Valid, 1437 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-02-06 02:40:28,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2025-02-06 02:40:28,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 708. [2025-02-06 02:40:28,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 506 states have (on average 1.391304347826087) internal successors, (704), 506 states have internal predecessors, (704), 183 states have call successors, (183), 18 states have call predecessors, (183), 18 states have return successors, (183), 183 states have call predecessors, (183), 183 states have call successors, (183) [2025-02-06 02:40:28,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 1070 transitions. [2025-02-06 02:40:28,297 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 1070 transitions. Word has length 430 [2025-02-06 02:40:28,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:40:28,297 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 1070 transitions. [2025-02-06 02:40:28,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 19.75) internal successors, (316), 16 states have internal predecessors, (316), 6 states have call successors, (183), 3 states have call predecessors, (183), 6 states have return successors, (183), 6 states have call predecessors, (183), 6 states have call successors, (183) [2025-02-06 02:40:28,298 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 1070 transitions. [2025-02-06 02:40:28,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2025-02-06 02:40:28,300 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:40:28,300 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:40:28,313 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 02:40:28,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-02-06 02:40:28,501 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:40:28,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:40:28,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1877922523, now seen corresponding path program 1 times [2025-02-06 02:40:28,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:40:28,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90392608] [2025-02-06 02:40:28,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:40:28,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:40:28,565 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 431 statements into 1 equivalence classes. [2025-02-06 02:40:30,305 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 431 of 431 statements. [2025-02-06 02:40:30,306 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:40:30,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:40:31,293 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 120 proven. 60 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2025-02-06 02:40:31,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:40:31,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90392608] [2025-02-06 02:40:31,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90392608] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:40:31,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324206327] [2025-02-06 02:40:31,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:40:31,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:40:31,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:40:31,296 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) [2025-02-06 02:40:31,300 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 [2025-02-06 02:40:31,446 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 431 statements into 1 equivalence classes. [2025-02-06 02:40:31,663 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 431 of 431 statements. [2025-02-06 02:40:31,663 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:40:31,663 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:40:31,671 INFO L256 TraceCheckSpWp]: Trace formula consists of 1144 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-06 02:40:31,696 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:40:32,360 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2025-02-06 02:40:32,360 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 02:40:32,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324206327] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:40:32,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 02:40:32,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2025-02-06 02:40:32,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27586894] [2025-02-06 02:40:32,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:40:32,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 02:40:32,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:40:32,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 02:40:32,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2025-02-06 02:40:32,362 INFO L87 Difference]: Start difference. First operand 708 states and 1070 transitions. Second operand has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 7 states have internal predecessors, (129), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2025-02-06 02:40:36,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2025-02-06 02:40:37,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:40:37,630 INFO L93 Difference]: Finished difference Result 1992 states and 3037 transitions. [2025-02-06 02:40:37,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 02:40:37,633 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 7 states have internal predecessors, (129), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) Word has length 431 [2025-02-06 02:40:37,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:40:37,642 INFO L225 Difference]: With dead ends: 1992 [2025-02-06 02:40:37,643 INFO L226 Difference]: Without dead ends: 1736 [2025-02-06 02:40:37,645 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2025-02-06 02:40:37,646 INFO L435 NwaCegarLoop]: 628 mSDtfsCounter, 775 mSDsluCounter, 1579 mSDsCounter, 0 mSdLazyCounter, 1256 mSolverCounterSat, 125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 2207 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 125 IncrementalHoareTripleChecker+Valid, 1256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:40:37,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 2207 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [125 Valid, 1256 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2025-02-06 02:40:37,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1736 states. [2025-02-06 02:40:37,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1736 to 760. [2025-02-06 02:40:37,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 760 states, 558 states have (on average 1.403225806451613) internal successors, (783), 558 states have internal predecessors, (783), 183 states have call successors, (183), 18 states have call predecessors, (183), 18 states have return successors, (183), 183 states have call predecessors, (183), 183 states have call successors, (183) [2025-02-06 02:40:37,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 760 states to 760 states and 1149 transitions. [2025-02-06 02:40:37,742 INFO L78 Accepts]: Start accepts. Automaton has 760 states and 1149 transitions. Word has length 431 [2025-02-06 02:40:37,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:40:37,742 INFO L471 AbstractCegarLoop]: Abstraction has 760 states and 1149 transitions. [2025-02-06 02:40:37,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.428571428571427) internal successors, (129), 7 states have internal predecessors, (129), 1 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 1 states have call predecessors, (61), 1 states have call successors, (61) [2025-02-06 02:40:37,742 INFO L276 IsEmpty]: Start isEmpty. Operand 760 states and 1149 transitions. [2025-02-06 02:40:37,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2025-02-06 02:40:37,744 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:40:37,745 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:40:37,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-06 02:40:37,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-02-06 02:40:37,946 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:40:37,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:40:37,946 INFO L85 PathProgramCache]: Analyzing trace with hash 694575226, now seen corresponding path program 1 times [2025-02-06 02:40:37,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:40:37,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62103181] [2025-02-06 02:40:37,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:40:37,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:40:37,977 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 431 statements into 1 equivalence classes. [2025-02-06 02:40:39,234 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 431 of 431 statements. [2025-02-06 02:40:39,234 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:40:39,234 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:40:40,146 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 120 proven. 60 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2025-02-06 02:40:40,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:40:40,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62103181] [2025-02-06 02:40:40,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62103181] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:40:40,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1490309718] [2025-02-06 02:40:40,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:40:40,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:40:40,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:40:40,150 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) [2025-02-06 02:40:40,151 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 [2025-02-06 02:40:40,297 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 431 statements into 1 equivalence classes. [2025-02-06 02:40:40,543 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 431 of 431 statements. [2025-02-06 02:40:40,543 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:40:40,543 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:40:40,552 INFO L256 TraceCheckSpWp]: Trace formula consists of 1141 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-02-06 02:40:40,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:40:41,407 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 3340 proven. 60 refuted. 0 times theorem prover too weak. 3920 trivial. 0 not checked. [2025-02-06 02:40:41,407 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:40:42,043 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 120 proven. 60 refuted. 0 times theorem prover too weak. 7140 trivial. 0 not checked. [2025-02-06 02:40:42,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1490309718] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 02:40:42,044 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 02:40:42,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 10] total 24 [2025-02-06 02:40:42,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851152170] [2025-02-06 02:40:42,044 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 02:40:42,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-02-06 02:40:42,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:40:42,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-02-06 02:40:42,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2025-02-06 02:40:42,046 INFO L87 Difference]: Start difference. First operand 760 states and 1149 transitions. Second operand has 24 states, 24 states have (on average 13.083333333333334) internal successors, (314), 24 states have internal predecessors, (314), 5 states have call successors, (142), 3 states have call predecessors, (142), 6 states have return successors, (143), 5 states have call predecessors, (143), 5 states have call successors, (143) [2025-02-06 02:40:44,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:40:44,287 INFO L93 Difference]: Finished difference Result 2129 states and 3191 transitions. [2025-02-06 02:40:44,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2025-02-06 02:40:44,288 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 13.083333333333334) internal successors, (314), 24 states have internal predecessors, (314), 5 states have call successors, (142), 3 states have call predecessors, (142), 6 states have return successors, (143), 5 states have call predecessors, (143), 5 states have call successors, (143) Word has length 431 [2025-02-06 02:40:44,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:40:44,295 INFO L225 Difference]: With dead ends: 2129 [2025-02-06 02:40:44,296 INFO L226 Difference]: Without dead ends: 1506 [2025-02-06 02:40:44,299 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 910 GetRequests, 850 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 960 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=791, Invalid=2869, Unknown=0, NotChecked=0, Total=3660 [2025-02-06 02:40:44,300 INFO L435 NwaCegarLoop]: 337 mSDtfsCounter, 3363 mSDsluCounter, 2085 mSDsCounter, 0 mSdLazyCounter, 1814 mSolverCounterSat, 1343 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3365 SdHoareTripleChecker+Valid, 2422 SdHoareTripleChecker+Invalid, 3157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1343 IncrementalHoareTripleChecker+Valid, 1814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-02-06 02:40:44,300 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3365 Valid, 2422 Invalid, 3157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1343 Valid, 1814 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-02-06 02:40:44,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2025-02-06 02:40:44,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1318. [2025-02-06 02:40:44,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1318 states, 973 states have (on average 1.3864337101747173) internal successors, (1349), 973 states have internal predecessors, (1349), 305 states have call successors, (305), 39 states have call predecessors, (305), 39 states have return successors, (305), 305 states have call predecessors, (305), 305 states have call successors, (305) [2025-02-06 02:40:44,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1318 states to 1318 states and 1959 transitions. [2025-02-06 02:40:44,432 INFO L78 Accepts]: Start accepts. Automaton has 1318 states and 1959 transitions. Word has length 431 [2025-02-06 02:40:44,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:40:44,433 INFO L471 AbstractCegarLoop]: Abstraction has 1318 states and 1959 transitions. [2025-02-06 02:40:44,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 13.083333333333334) internal successors, (314), 24 states have internal predecessors, (314), 5 states have call successors, (142), 3 states have call predecessors, (142), 6 states have return successors, (143), 5 states have call predecessors, (143), 5 states have call successors, (143) [2025-02-06 02:40:44,433 INFO L276 IsEmpty]: Start isEmpty. Operand 1318 states and 1959 transitions. [2025-02-06 02:40:44,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2025-02-06 02:40:44,435 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:40:44,435 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:40:44,445 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 02:40:44,636 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,SelfDestructingSolverStorable11 [2025-02-06 02:40:44,637 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:40:44,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:40:44,638 INFO L85 PathProgramCache]: Analyzing trace with hash 762826095, now seen corresponding path program 1 times [2025-02-06 02:40:44,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:40:44,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912402735] [2025-02-06 02:40:44,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:40:44,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:40:44,658 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 432 statements into 1 equivalence classes. [2025-02-06 02:40:45,039 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 432 of 432 statements. [2025-02-06 02:40:45,039 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:40:45,039 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:40:48,591 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2025-02-06 02:40:48,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:40:48,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912402735] [2025-02-06 02:40:48,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912402735] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:40:48,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:40:48,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2025-02-06 02:40:48,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141266185] [2025-02-06 02:40:48,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:40:48,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-02-06 02:40:48,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:40:48,593 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-02-06 02:40:48,593 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2025-02-06 02:40:48,593 INFO L87 Difference]: Start difference. First operand 1318 states and 1959 transitions. Second operand has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 4 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 4 states have call predecessors, (61), 4 states have call successors, (61) [2025-02-06 02:40:55,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:40:55,839 INFO L93 Difference]: Finished difference Result 4443 states and 6590 transitions. [2025-02-06 02:40:55,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2025-02-06 02:40:55,840 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 4 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 4 states have call predecessors, (61), 4 states have call successors, (61) Word has length 432 [2025-02-06 02:40:55,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:40:55,850 INFO L225 Difference]: With dead ends: 4443 [2025-02-06 02:40:55,850 INFO L226 Difference]: Without dead ends: 3345 [2025-02-06 02:40:55,852 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 432 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=613, Invalid=1549, Unknown=0, NotChecked=0, Total=2162 [2025-02-06 02:40:55,853 INFO L435 NwaCegarLoop]: 327 mSDtfsCounter, 4296 mSDsluCounter, 3193 mSDsCounter, 0 mSdLazyCounter, 1554 mSolverCounterSat, 1301 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4296 SdHoareTripleChecker+Valid, 3520 SdHoareTripleChecker+Invalid, 2855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1301 IncrementalHoareTripleChecker+Valid, 1554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:40:55,853 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4296 Valid, 3520 Invalid, 2855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1301 Valid, 1554 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2025-02-06 02:40:55,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3345 states. [2025-02-06 02:40:55,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3345 to 1566. [2025-02-06 02:40:55,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1566 states, 1221 states have (on average 1.425061425061425) internal successors, (1740), 1221 states have internal predecessors, (1740), 305 states have call successors, (305), 39 states have call predecessors, (305), 39 states have return successors, (305), 305 states have call predecessors, (305), 305 states have call successors, (305) [2025-02-06 02:40:55,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1566 states to 1566 states and 2350 transitions. [2025-02-06 02:40:55,978 INFO L78 Accepts]: Start accepts. Automaton has 1566 states and 2350 transitions. Word has length 432 [2025-02-06 02:40:55,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:40:55,979 INFO L471 AbstractCegarLoop]: Abstraction has 1566 states and 2350 transitions. [2025-02-06 02:40:55,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.842105263157895) internal successors, (130), 19 states have internal predecessors, (130), 4 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 4 states have call predecessors, (61), 4 states have call successors, (61) [2025-02-06 02:40:55,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1566 states and 2350 transitions. [2025-02-06 02:40:55,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2025-02-06 02:40:55,981 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:40:55,981 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:40:55,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-06 02:40:55,982 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:40:55,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:40:55,982 INFO L85 PathProgramCache]: Analyzing trace with hash 279150768, now seen corresponding path program 1 times [2025-02-06 02:40:55,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:40:55,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41193316] [2025-02-06 02:40:55,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:40:55,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:40:56,004 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 432 statements into 1 equivalence classes. [2025-02-06 02:40:56,473 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 432 of 432 statements. [2025-02-06 02:40:56,473 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:40:56,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:40:57,685 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7320 trivial. 0 not checked. [2025-02-06 02:40:57,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:40:57,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41193316] [2025-02-06 02:40:57,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41193316] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:40:57,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:40:57,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-02-06 02:40:57,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443475046] [2025-02-06 02:40:57,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:40:57,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-02-06 02:40:57,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:40:57,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-02-06 02:40:57,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-06 02:40:57,687 INFO L87 Difference]: Start difference. First operand 1566 states and 2350 transitions. Second operand has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 9 states have internal predecessors, (130), 2 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2025-02-06 02:40:59,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:40:59,270 INFO L93 Difference]: Finished difference Result 4471 states and 6661 transitions. [2025-02-06 02:40:59,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 02:40:59,271 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 9 states have internal predecessors, (130), 2 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) Word has length 432 [2025-02-06 02:40:59,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:40:59,284 INFO L225 Difference]: With dead ends: 4471 [2025-02-06 02:40:59,284 INFO L226 Difference]: Without dead ends: 3373 [2025-02-06 02:40:59,286 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2025-02-06 02:40:59,287 INFO L435 NwaCegarLoop]: 565 mSDtfsCounter, 935 mSDsluCounter, 2353 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 2918 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:40:59,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 2918 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-02-06 02:40:59,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3373 states. [2025-02-06 02:40:59,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3373 to 3031. [2025-02-06 02:40:59,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3031 states, 2416 states have (on average 1.4325331125827814) internal successors, (3461), 2420 states have internal predecessors, (3461), 539 states have call successors, (539), 75 states have call predecessors, (539), 75 states have return successors, (539), 535 states have call predecessors, (539), 539 states have call successors, (539) [2025-02-06 02:40:59,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3031 states to 3031 states and 4539 transitions. [2025-02-06 02:40:59,530 INFO L78 Accepts]: Start accepts. Automaton has 3031 states and 4539 transitions. Word has length 432 [2025-02-06 02:40:59,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:40:59,530 INFO L471 AbstractCegarLoop]: Abstraction has 3031 states and 4539 transitions. [2025-02-06 02:40:59,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.444444444444445) internal successors, (130), 9 states have internal predecessors, (130), 2 states have call successors, (61), 1 states have call predecessors, (61), 1 states have return successors, (61), 2 states have call predecessors, (61), 2 states have call successors, (61) [2025-02-06 02:40:59,531 INFO L276 IsEmpty]: Start isEmpty. Operand 3031 states and 4539 transitions. [2025-02-06 02:40:59,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2025-02-06 02:40:59,536 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:40:59,536 INFO L218 NwaCegarLoop]: trace histogram [61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:40:59,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-02-06 02:40:59,537 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:40:59,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:40:59,537 INFO L85 PathProgramCache]: Analyzing trace with hash 1129728612, now seen corresponding path program 1 times [2025-02-06 02:40:59,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:40:59,537 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965588355] [2025-02-06 02:40:59,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:40:59,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:40:59,559 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 433 statements into 1 equivalence classes. [2025-02-06 02:41:01,199 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 433 of 433 statements. [2025-02-06 02:41:01,199 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:41:01,199 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:41:08,594 INFO L134 CoverageAnalysis]: Checked inductivity of 7320 backedges. 267 proven. 255 refuted. 0 times theorem prover too weak. 6798 trivial. 0 not checked. [2025-02-06 02:41:08,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:41:08,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965588355] [2025-02-06 02:41:08,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [965588355] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:41:08,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241138075] [2025-02-06 02:41:08,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:41:08,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:41:08,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:41:08,597 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) [2025-02-06 02:41:08,601 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 [2025-02-06 02:41:08,770 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 433 statements into 1 equivalence classes. [2025-02-06 02:41:09,065 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 433 of 433 statements. [2025-02-06 02:41:09,065 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:41:09,065 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:41:09,070 INFO L256 TraceCheckSpWp]: Trace formula consists of 1144 conjuncts, 83 conjuncts are in the unsatisfiable core [2025-02-06 02:41:09,077 INFO L279 TraceCheckSpWp]: Computing forward predicates...