./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-51.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_amount100_file-51.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 08e5ee5fd1b74638581d9fd74a92533fd5a3cc8616d1def04491c3d930804d87 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 02:01:27,685 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 02:01:27,735 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-06 02:01:27,738 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 02:01:27,739 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 02:01:27,761 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 02:01:27,762 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 02:01:27,762 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 02:01:27,762 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 02:01:27,762 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 02:01:27,763 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 02:01:27,763 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 02:01:27,763 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 02:01:27,763 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 02:01:27,764 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 02:01:27,764 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 02:01:27,764 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 02:01:27,764 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 02:01:27,764 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 02:01:27,764 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 02:01:27,764 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 02:01:27,764 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 02:01:27,764 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 02:01:27,764 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 02:01:27,764 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 02:01:27,764 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 02:01:27,764 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 02:01:27,764 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 02:01:27,764 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 02:01:27,764 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 02:01:27,764 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 02:01:27,764 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 02:01:27,764 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 02:01:27,765 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 02:01:27,765 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 02:01:27,765 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 02:01:27,765 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 02:01:27,765 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 02:01:27,765 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 02:01:27,765 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 02:01:27,765 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 02:01:27,765 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 02:01:27,765 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 02:01:27,765 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 -> 08e5ee5fd1b74638581d9fd74a92533fd5a3cc8616d1def04491c3d930804d87 [2025-02-06 02:01:27,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 02:01:27,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 02:01:27,993 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 02:01:27,994 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 02:01:27,994 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 02:01:27,995 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-51.i [2025-02-06 02:01:29,166 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/96f747ae6/cd9d20cab7e64a65a2529c6b9bff5051/FLAG8bba02596 [2025-02-06 02:01:29,439 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 02:01:29,439 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount100_file-51.i [2025-02-06 02:01:29,445 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/96f747ae6/cd9d20cab7e64a65a2529c6b9bff5051/FLAG8bba02596 [2025-02-06 02:01:29,739 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/96f747ae6/cd9d20cab7e64a65a2529c6b9bff5051 [2025-02-06 02:01:29,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 02:01:29,742 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 02:01:29,743 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 02:01:29,743 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 02:01:29,746 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 02:01:29,746 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:01:29" (1/1) ... [2025-02-06 02:01:29,747 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c65015c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:01:29, skipping insertion in model container [2025-02-06 02:01:29,747 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:01:29" (1/1) ... [2025-02-06 02:01:29,760 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 02:01:29,854 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_amount100_file-51.i[916,929] [2025-02-06 02:01:29,902 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 02:01:29,909 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 02:01:29,915 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_amount100_file-51.i[916,929] [2025-02-06 02:01:29,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 02:01:29,950 INFO L204 MainTranslator]: Completed translation [2025-02-06 02:01:29,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:01:29 WrapperNode [2025-02-06 02:01:29,951 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 02:01:29,952 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 02:01:29,952 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 02:01:29,952 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 02:01:29,956 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:01:29" (1/1) ... [2025-02-06 02:01:29,962 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:01:29" (1/1) ... [2025-02-06 02:01:29,994 INFO L138 Inliner]: procedures = 26, calls = 45, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 206 [2025-02-06 02:01:29,994 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 02:01:29,995 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 02:01:29,995 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 02:01:29,995 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 02:01:30,001 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:01:29" (1/1) ... [2025-02-06 02:01:30,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:01:29" (1/1) ... [2025-02-06 02:01:30,010 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:01:29" (1/1) ... [2025-02-06 02:01:30,031 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 02:01:30,031 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:01:29" (1/1) ... [2025-02-06 02:01:30,031 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:01:29" (1/1) ... [2025-02-06 02:01:30,044 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:01:29" (1/1) ... [2025-02-06 02:01:30,045 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:01:29" (1/1) ... [2025-02-06 02:01:30,046 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:01:29" (1/1) ... [2025-02-06 02:01:30,047 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:01:29" (1/1) ... [2025-02-06 02:01:30,053 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 02:01:30,054 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 02:01:30,054 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 02:01:30,054 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 02:01:30,057 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:01:29" (1/1) ... [2025-02-06 02:01:30,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 02:01:30,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:01:30,085 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 02:01:30,089 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 02:01:30,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 02:01:30,103 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 02:01:30,103 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 02:01:30,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 02:01:30,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 02:01:30,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 02:01:30,159 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 02:01:30,160 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 02:01:30,526 INFO L? ?]: Removed 22 outVars from TransFormulas that were not future-live. [2025-02-06 02:01:30,526 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 02:01:30,539 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 02:01:30,540 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 02:01:30,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:01:30 BoogieIcfgContainer [2025-02-06 02:01:30,540 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 02:01:30,541 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 02:01:30,541 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 02:01:30,547 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 02:01:30,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 02:01:29" (1/3) ... [2025-02-06 02:01:30,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2620e06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:01:30, skipping insertion in model container [2025-02-06 02:01:30,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:01:29" (2/3) ... [2025-02-06 02:01:30,551 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2620e06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:01:30, skipping insertion in model container [2025-02-06 02:01:30,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:01:30" (3/3) ... [2025-02-06 02:01:30,552 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount100_file-51.i [2025-02-06 02:01:30,561 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 02:01:30,562 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount100_file-51.i that has 2 procedures, 93 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 02:01:30,593 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 02:01:30,600 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;@59d22dc9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 02:01:30,600 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 02:01:30,602 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 58 states have (on average 1.4137931034482758) internal successors, (82), 59 states have internal predecessors, (82), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2025-02-06 02:01:30,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2025-02-06 02:01:30,610 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:01:30,610 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:01:30,611 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:01:30,613 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:01:30,614 INFO L85 PathProgramCache]: Analyzing trace with hash 25760842, now seen corresponding path program 1 times [2025-02-06 02:01:30,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:01:30,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540619362] [2025-02-06 02:01:30,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:01:30,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:01:30,696 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 203 statements into 1 equivalence classes. [2025-02-06 02:01:30,712 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 203 of 203 statements. [2025-02-06 02:01:30,712 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:01:30,712 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:01:30,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 1922 trivial. 0 not checked. [2025-02-06 02:01:30,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:01:30,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540619362] [2025-02-06 02:01:30,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540619362] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:01:30,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015144046] [2025-02-06 02:01:30,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:01:30,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:01:30,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:01:30,864 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 02:01:30,873 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 02:01:30,940 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 203 statements into 1 equivalence classes. [2025-02-06 02:01:30,998 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 203 of 203 statements. [2025-02-06 02:01:30,998 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:01:30,998 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:01:31,000 INFO L256 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 02:01:31,005 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:01:31,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 1922 trivial. 0 not checked. [2025-02-06 02:01:31,027 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 02:01:31,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015144046] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:01:31,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 02:01:31,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 02:01:31,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101270665] [2025-02-06 02:01:31,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:01:31,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 02:01:31,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:01:31,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 02:01:31,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 02:01:31,044 INFO L87 Difference]: Start difference. First operand has 93 states, 58 states have (on average 1.4137931034482758) internal successors, (82), 59 states have internal predecessors, (82), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 2 states have call successors, (32) [2025-02-06 02:01:31,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:01:31,061 INFO L93 Difference]: Finished difference Result 180 states and 319 transitions. [2025-02-06 02:01:31,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 02:01:31,062 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 2 states have call successors, (32) Word has length 203 [2025-02-06 02:01:31,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:01:31,066 INFO L225 Difference]: With dead ends: 180 [2025-02-06 02:01:31,066 INFO L226 Difference]: Without dead ends: 90 [2025-02-06 02:01:31,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 204 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 02:01:31,069 INFO L435 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 02:01:31,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 02:01:31,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2025-02-06 02:01:31,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2025-02-06 02:01:31,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 56 states have (on average 1.375) internal successors, (77), 56 states have internal predecessors, (77), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2025-02-06 02:01:31,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 141 transitions. [2025-02-06 02:01:31,098 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 141 transitions. Word has length 203 [2025-02-06 02:01:31,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:01:31,098 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 141 transitions. [2025-02-06 02:01:31,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 2 states have call successors, (32) [2025-02-06 02:01:31,099 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 141 transitions. [2025-02-06 02:01:31,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2025-02-06 02:01:31,101 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:01:31,101 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:01:31,108 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 02:01:31,302 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 02:01:31,302 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:01:31,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:01:31,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1813854488, now seen corresponding path program 1 times [2025-02-06 02:01:31,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:01:31,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104844364] [2025-02-06 02:01:31,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:01:31,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:01:31,325 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 203 statements into 1 equivalence classes. [2025-02-06 02:01:31,767 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 203 of 203 statements. [2025-02-06 02:01:31,767 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:01:31,768 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:01:32,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 42 proven. 51 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2025-02-06 02:01:32,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:01:32,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104844364] [2025-02-06 02:01:32,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104844364] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:01:32,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784172499] [2025-02-06 02:01:32,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:01:32,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:01:32,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:01:32,246 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 02:01:32,247 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 02:01:32,320 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 203 statements into 1 equivalence classes. [2025-02-06 02:01:32,392 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 203 of 203 statements. [2025-02-06 02:01:32,392 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:01:32,392 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:01:32,395 INFO L256 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 02:01:32,404 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:01:32,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 1011 proven. 51 refuted. 0 times theorem prover too weak. 922 trivial. 0 not checked. [2025-02-06 02:01:32,665 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:01:32,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 42 proven. 51 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2025-02-06 02:01:32,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784172499] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 02:01:32,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 02:01:32,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2025-02-06 02:01:32,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052410283] [2025-02-06 02:01:32,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 02:01:32,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 02:01:32,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:01:32,923 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 02:01:32,923 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-02-06 02:01:32,923 INFO L87 Difference]: Start difference. First operand 90 states and 141 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2025-02-06 02:01:33,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:01:33,131 INFO L93 Difference]: Finished difference Result 185 states and 286 transitions. [2025-02-06 02:01:33,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 02:01:33,132 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 203 [2025-02-06 02:01:33,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:01:33,134 INFO L225 Difference]: With dead ends: 185 [2025-02-06 02:01:33,134 INFO L226 Difference]: Without dead ends: 98 [2025-02-06 02:01:33,135 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 403 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2025-02-06 02:01:33,135 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 128 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 02:01:33,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 242 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 02:01:33,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2025-02-06 02:01:33,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 94. [2025-02-06 02:01:33,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 59 states have (on average 1.3389830508474576) internal successors, (79), 59 states have internal predecessors, (79), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2025-02-06 02:01:33,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 143 transitions. [2025-02-06 02:01:33,148 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 143 transitions. Word has length 203 [2025-02-06 02:01:33,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:01:33,149 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 143 transitions. [2025-02-06 02:01:33,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (49), 2 states have call predecessors, (49), 4 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2025-02-06 02:01:33,149 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 143 transitions. [2025-02-06 02:01:33,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2025-02-06 02:01:33,151 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:01:33,151 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:01:33,158 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 02:01:33,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:01:33,354 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:01:33,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:01:33,355 INFO L85 PathProgramCache]: Analyzing trace with hash -306302679, now seen corresponding path program 1 times [2025-02-06 02:01:33,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:01:33,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662062049] [2025-02-06 02:01:33,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:01:33,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:01:33,375 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 203 statements into 1 equivalence classes. [2025-02-06 02:01:33,441 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 203 of 203 statements. [2025-02-06 02:01:33,442 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:01:33,442 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:01:33,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2025-02-06 02:01:33,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:01:33,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662062049] [2025-02-06 02:01:33,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662062049] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:01:33,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:01:33,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 02:01:33,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063034422] [2025-02-06 02:01:33,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:01:33,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 02:01:33,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:01:33,934 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 02:01:33,934 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-06 02:01:33,934 INFO L87 Difference]: Start difference. First operand 94 states and 143 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-06 02:01:34,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:01:34,110 INFO L93 Difference]: Finished difference Result 277 states and 424 transitions. [2025-02-06 02:01:34,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 02:01:34,111 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 203 [2025-02-06 02:01:34,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:01:34,113 INFO L225 Difference]: With dead ends: 277 [2025-02-06 02:01:34,113 INFO L226 Difference]: Without dead ends: 186 [2025-02-06 02:01:34,113 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-02-06 02:01:34,114 INFO L435 NwaCegarLoop]: 140 mSDtfsCounter, 184 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:01:34,114 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 463 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 02:01:34,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2025-02-06 02:01:34,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 183. [2025-02-06 02:01:34,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 114 states have (on average 1.3157894736842106) internal successors, (150), 114 states have internal predecessors, (150), 64 states have call successors, (64), 4 states have call predecessors, (64), 4 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2025-02-06 02:01:34,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 278 transitions. [2025-02-06 02:01:34,136 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 278 transitions. Word has length 203 [2025-02-06 02:01:34,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:01:34,136 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 278 transitions. [2025-02-06 02:01:34,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-06 02:01:34,137 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 278 transitions. [2025-02-06 02:01:34,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2025-02-06 02:01:34,138 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:01:34,138 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:01:34,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 02:01:34,138 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:01:34,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:01:34,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1645253445, now seen corresponding path program 1 times [2025-02-06 02:01:34,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:01:34,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077230682] [2025-02-06 02:01:34,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:01:34,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:01:34,150 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 204 statements into 1 equivalence classes. [2025-02-06 02:01:34,195 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 204 of 204 statements. [2025-02-06 02:01:34,196 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:01:34,196 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:01:34,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2025-02-06 02:01:34,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:01:34,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077230682] [2025-02-06 02:01:34,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077230682] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:01:34,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:01:34,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 02:01:34,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963332946] [2025-02-06 02:01:34,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:01:34,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 02:01:34,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:01:34,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 02:01:34,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-06 02:01:34,589 INFO L87 Difference]: Start difference. First operand 183 states and 278 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-06 02:01:34,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:01:34,925 INFO L93 Difference]: Finished difference Result 345 states and 513 transitions. [2025-02-06 02:01:34,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 02:01:34,926 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 204 [2025-02-06 02:01:34,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:01:34,928 INFO L225 Difference]: With dead ends: 345 [2025-02-06 02:01:34,928 INFO L226 Difference]: Without dead ends: 254 [2025-02-06 02:01:34,929 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2025-02-06 02:01:34,929 INFO L435 NwaCegarLoop]: 133 mSDtfsCounter, 164 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 02:01:34,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 286 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 02:01:34,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2025-02-06 02:01:34,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 194. [2025-02-06 02:01:34,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 123 states have (on average 1.2764227642276422) internal successors, (157), 123 states have internal predecessors, (157), 64 states have call successors, (64), 6 states have call predecessors, (64), 6 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2025-02-06 02:01:34,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 285 transitions. [2025-02-06 02:01:34,966 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 285 transitions. Word has length 204 [2025-02-06 02:01:34,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:01:34,967 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 285 transitions. [2025-02-06 02:01:34,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2025-02-06 02:01:34,967 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 285 transitions. [2025-02-06 02:01:34,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2025-02-06 02:01:34,968 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:01:34,969 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:01:34,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 02:01:34,969 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:01:34,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:01:34,969 INFO L85 PathProgramCache]: Analyzing trace with hash -816728900, now seen corresponding path program 1 times [2025-02-06 02:01:34,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:01:34,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654258844] [2025-02-06 02:01:34,969 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:01:34,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:01:34,980 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 204 statements into 1 equivalence classes. [2025-02-06 02:01:35,069 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 204 of 204 statements. [2025-02-06 02:01:35,070 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:01:35,070 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:01:35,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 27 proven. 66 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2025-02-06 02:01:35,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:01:35,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654258844] [2025-02-06 02:01:35,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654258844] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:01:35,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1638281504] [2025-02-06 02:01:35,581 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:01:35,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:01:35,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:01:35,584 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 02:01:35,587 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 02:01:35,644 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 204 statements into 1 equivalence classes. [2025-02-06 02:01:35,705 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 204 of 204 statements. [2025-02-06 02:01:35,706 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:01:35,706 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:01:35,708 INFO L256 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-02-06 02:01:35,713 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:01:36,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 876 proven. 90 refuted. 0 times theorem prover too weak. 1018 trivial. 0 not checked. [2025-02-06 02:01:36,531 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:01:40,650 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 (mod c_~var_1_28~0 65536))) (and (forall ((~var_1_6~0 Int)) (let ((.cse1 (* c_~var_1_1~0 ~var_1_6~0))) (or (< 0 (+ .cse0 (div .cse1 64))) (< .cse1 0)))) (forall ((~var_1_6~0 Int)) (let ((.cse2 (* c_~var_1_1~0 ~var_1_6~0))) (or (< 0 (+ .cse0 (div .cse2 64) 1)) (= (mod .cse2 64) 0)))) (forall ((~var_1_6~0 Int)) (let ((.cse3 (* c_~var_1_1~0 ~var_1_6~0))) (or (not (= (mod .cse3 64) 0)) (< 0 (+ .cse0 (div .cse3 64)))))))) is different from false [2025-02-06 02:02:06,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1638281504] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:02:06,286 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 02:02:06,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 11] total 17 [2025-02-06 02:02:06,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750281159] [2025-02-06 02:02:06,286 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 02:02:06,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-02-06 02:02:06,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:02:06,289 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-02-06 02:02:06,289 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=282, Unknown=7, NotChecked=34, Total=380 [2025-02-06 02:02:06,289 INFO L87 Difference]: Start difference. First operand 194 states and 285 transitions. Second operand has 17 states, 17 states have (on average 5.705882352941177) internal successors, (97), 17 states have internal predecessors, (97), 5 states have call successors, (64), 4 states have call predecessors, (64), 7 states have return successors, (64), 5 states have call predecessors, (64), 5 states have call successors, (64) [2025-02-06 02:02:08,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:02:08,538 INFO L93 Difference]: Finished difference Result 556 states and 793 transitions. [2025-02-06 02:02:08,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-02-06 02:02:08,540 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.705882352941177) internal successors, (97), 17 states have internal predecessors, (97), 5 states have call successors, (64), 4 states have call predecessors, (64), 7 states have return successors, (64), 5 states have call predecessors, (64), 5 states have call successors, (64) Word has length 204 [2025-02-06 02:02:08,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:02:08,543 INFO L225 Difference]: With dead ends: 556 [2025-02-06 02:02:08,544 INFO L226 Difference]: Without dead ends: 365 [2025-02-06 02:02:08,546 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 30.2s TimeCoverageRelationStatistics Valid=303, Invalid=1026, Unknown=7, NotChecked=70, Total=1406 [2025-02-06 02:02:08,551 INFO L435 NwaCegarLoop]: 91 mSDtfsCounter, 402 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-02-06 02:02:08,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 845 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-02-06 02:02:08,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2025-02-06 02:02:08,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 291. [2025-02-06 02:02:08,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 182 states have (on average 1.2527472527472527) internal successors, (228), 182 states have internal predecessors, (228), 96 states have call successors, (96), 12 states have call predecessors, (96), 12 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2025-02-06 02:02:08,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 420 transitions. [2025-02-06 02:02:08,614 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 420 transitions. Word has length 204 [2025-02-06 02:02:08,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:02:08,616 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 420 transitions. [2025-02-06 02:02:08,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.705882352941177) internal successors, (97), 17 states have internal predecessors, (97), 5 states have call successors, (64), 4 states have call predecessors, (64), 7 states have return successors, (64), 5 states have call predecessors, (64), 5 states have call successors, (64) [2025-02-06 02:02:08,617 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 420 transitions. [2025-02-06 02:02:08,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2025-02-06 02:02:08,618 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:02:08,619 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:02:08,629 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 02:02:08,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:02:08,823 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:02:08,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:02:08,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1412585975, now seen corresponding path program 1 times [2025-02-06 02:02:08,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:02:08,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483297047] [2025-02-06 02:02:08,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:02:08,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:02:08,839 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 205 statements into 1 equivalence classes. [2025-02-06 02:02:08,971 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 205 of 205 statements. [2025-02-06 02:02:08,971 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:02:08,971 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 02:02:08,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [734083459] [2025-02-06 02:02:08,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:02:08,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:02:08,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:02:08,978 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 02:02:08,979 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 02:02:09,039 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 205 statements into 1 equivalence classes. [2025-02-06 02:02:09,087 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 205 of 205 statements. [2025-02-06 02:02:09,088 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:02:09,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:02:09,090 INFO L256 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-02-06 02:02:09,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:02:10,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 1258 proven. 93 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2025-02-06 02:02:10,800 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:02:29,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:02:29,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483297047] [2025-02-06 02:02:29,386 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2025-02-06 02:02:29,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [734083459] [2025-02-06 02:02:29,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [734083459] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:02:29,386 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2025-02-06 02:02:29,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2025-02-06 02:02:29,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516255928] [2025-02-06 02:02:29,386 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2025-02-06 02:02:29,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-06 02:02:29,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:02:29,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-06 02:02:29,388 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=264, Unknown=4, NotChecked=0, Total=342 [2025-02-06 02:02:29,388 INFO L87 Difference]: Start difference. First operand 291 states and 420 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 13 states have internal predecessors, (60), 3 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2025-02-06 02:02:37,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:02:37,480 INFO L93 Difference]: Finished difference Result 1422 states and 2000 transitions. [2025-02-06 02:02:37,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2025-02-06 02:02:37,481 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 13 states have internal predecessors, (60), 3 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 205 [2025-02-06 02:02:37,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:02:37,489 INFO L225 Difference]: With dead ends: 1422 [2025-02-06 02:02:37,493 INFO L226 Difference]: Without dead ends: 1221 [2025-02-06 02:02:37,496 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1319 ImplicationChecksByTransitivity, 21.8s TimeCoverageRelationStatistics Valid=1062, Invalid=3764, Unknown=4, NotChecked=0, Total=4830 [2025-02-06 02:02:37,498 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 521 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 1719 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 534 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 2021 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 1719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2025-02-06 02:02:37,498 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [534 Valid, 1286 Invalid, 2021 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 1719 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2025-02-06 02:02:37,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2025-02-06 02:02:37,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 540. [2025-02-06 02:02:37,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 355 states have (on average 1.2732394366197184) internal successors, (452), 355 states have internal predecessors, (452), 160 states have call successors, (160), 24 states have call predecessors, (160), 24 states have return successors, (160), 160 states have call predecessors, (160), 160 states have call successors, (160) [2025-02-06 02:02:37,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 772 transitions. [2025-02-06 02:02:37,577 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 772 transitions. Word has length 205 [2025-02-06 02:02:37,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:02:37,578 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 772 transitions. [2025-02-06 02:02:37,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 13 states have internal predecessors, (60), 3 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2025-02-06 02:02:37,578 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 772 transitions. [2025-02-06 02:02:37,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2025-02-06 02:02:37,584 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:02:37,584 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:02:37,592 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-06 02:02:37,788 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,SelfDestructingSolverStorable5 [2025-02-06 02:02:37,788 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:02:37,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:02:37,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1923120152, now seen corresponding path program 1 times [2025-02-06 02:02:37,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:02:37,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207041208] [2025-02-06 02:02:37,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:02:37,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:02:37,798 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 205 statements into 1 equivalence classes. [2025-02-06 02:02:37,874 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 205 of 205 statements. [2025-02-06 02:02:37,874 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:02:37,874 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unknown [2025-02-06 02:02:37,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1607122802] [2025-02-06 02:02:37,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:02:37,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:02:37,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:02:37,880 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 02:02:37,883 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 02:02:37,945 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 205 statements into 1 equivalence classes. [2025-02-06 02:02:37,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 205 of 205 statements. [2025-02-06 02:02:37,997 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:02:37,997 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:02:38,002 INFO L256 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-02-06 02:02:38,005 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:02:39,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 1258 proven. 93 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2025-02-06 02:02:39,529 INFO L312 TraceCheckSpWp]: Computing backward predicates...