./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-17.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_fillercode_fillercodesize_ps-cn-250_file-17.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 d7e06ec6fa537fe85bfdff5997d89760f89bf3ab66b37451471516c2ec0f2efb --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 21:32:38,433 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 21:32:38,499 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 21:32:38,504 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 21:32:38,504 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 21:32:38,531 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 21:32:38,532 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 21:32:38,532 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 21:32:38,532 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 21:32:38,532 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 21:32:38,532 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 21:32:38,532 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 21:32:38,533 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 21:32:38,533 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 21:32:38,533 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 21:32:38,533 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 21:32:38,533 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 21:32:38,533 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 21:32:38,534 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 21:32:38,534 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 21:32:38,534 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 21:32:38,534 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 21:32:38,534 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 21:32:38,534 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 21:32:38,534 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 21:32:38,534 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 21:32:38,535 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 21:32:38,535 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 21:32:38,535 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 21:32:38,535 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 21:32:38,535 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 21:32:38,535 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 21:32:38,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 21:32:38,536 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 21:32:38,536 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 21:32:38,536 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 21:32:38,536 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 21:32:38,536 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 21:32:38,536 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 21:32:38,536 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 21:32:38,536 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 21:32:38,536 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 21:32:38,536 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 21:32:38,536 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 -> d7e06ec6fa537fe85bfdff5997d89760f89bf3ab66b37451471516c2ec0f2efb [2025-02-05 21:32:38,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 21:32:38,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 21:32:38,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 21:32:38,838 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 21:32:38,839 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 21:32:38,840 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-17.i [2025-02-05 21:32:40,180 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b4dcdaa05/50808cc162ac444d85ee8178fd5dbdd3/FLAG70e59fd39 [2025-02-05 21:32:40,549 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 21:32:40,551 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-17.i [2025-02-05 21:32:40,567 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b4dcdaa05/50808cc162ac444d85ee8178fd5dbdd3/FLAG70e59fd39 [2025-02-05 21:32:40,588 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b4dcdaa05/50808cc162ac444d85ee8178fd5dbdd3 [2025-02-05 21:32:40,591 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 21:32:40,592 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 21:32:40,594 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 21:32:40,594 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 21:32:40,598 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 21:32:40,599 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 09:32:40" (1/1) ... [2025-02-05 21:32:40,600 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f4366b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:32:40, skipping insertion in model container [2025-02-05 21:32:40,600 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 09:32:40" (1/1) ... [2025-02-05 21:32:40,632 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 21:32:40,775 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_fillercode_fillercodesize_ps-cn-250_file-17.i[916,929] [2025-02-05 21:32:40,900 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 21:32:40,915 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 21:32:40,928 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_fillercode_fillercodesize_ps-cn-250_file-17.i[916,929] [2025-02-05 21:32:40,989 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 21:32:41,007 INFO L204 MainTranslator]: Completed translation [2025-02-05 21:32:41,008 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:32:41 WrapperNode [2025-02-05 21:32:41,008 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 21:32:41,010 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 21:32:41,010 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 21:32:41,010 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 21:32:41,016 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:32:41" (1/1) ... [2025-02-05 21:32:41,041 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:32:41" (1/1) ... [2025-02-05 21:32:41,119 INFO L138 Inliner]: procedures = 26, calls = 100, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 658 [2025-02-05 21:32:41,119 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 21:32:41,121 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 21:32:41,122 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 21:32:41,122 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 21:32:41,130 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:32:41" (1/1) ... [2025-02-05 21:32:41,131 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:32:41" (1/1) ... [2025-02-05 21:32:41,143 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:32:41" (1/1) ... [2025-02-05 21:32:41,178 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]. [2025-02-05 21:32:41,178 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:32:41" (1/1) ... [2025-02-05 21:32:41,179 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:32:41" (1/1) ... [2025-02-05 21:32:41,195 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:32:41" (1/1) ... [2025-02-05 21:32:41,198 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:32:41" (1/1) ... [2025-02-05 21:32:41,203 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:32:41" (1/1) ... [2025-02-05 21:32:41,207 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:32:41" (1/1) ... [2025-02-05 21:32:41,219 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 21:32:41,221 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 21:32:41,221 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 21:32:41,222 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 21:32:41,222 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:32:41" (1/1) ... [2025-02-05 21:32:41,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 21:32:41,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 21:32:41,254 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) [2025-02-05 21:32:41,258 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 [2025-02-05 21:32:41,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 21:32:41,280 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-05 21:32:41,280 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-05 21:32:41,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 21:32:41,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 21:32:41,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 21:32:41,404 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 21:32:41,406 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 21:32:42,242 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L472: havoc property_#t~ite69#1;havoc property_#t~ite68#1;havoc property_#t~bitwise67#1;havoc property_#t~short70#1; [2025-02-05 21:32:42,392 INFO L? ?]: Removed 35 outVars from TransFormulas that were not future-live. [2025-02-05 21:32:42,392 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 21:32:42,436 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 21:32:42,437 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 21:32:42,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 09:32:42 BoogieIcfgContainer [2025-02-05 21:32:42,437 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 21:32:42,442 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 21:32:42,442 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 21:32:42,447 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 21:32:42,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 09:32:40" (1/3) ... [2025-02-05 21:32:42,448 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f376c61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 09:32:42, skipping insertion in model container [2025-02-05 21:32:42,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:32:41" (2/3) ... [2025-02-05 21:32:42,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f376c61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 09:32:42, skipping insertion in model container [2025-02-05 21:32:42,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 09:32:42" (3/3) ... [2025-02-05 21:32:42,450 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-17.i [2025-02-05 21:32:42,464 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 21:32:42,468 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-17.i that has 2 procedures, 277 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-05 21:32:42,541 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 21:32:42,556 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;@5a875721, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 21:32:42,557 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 21:32:42,564 INFO L276 IsEmpty]: Start isEmpty. Operand has 277 states, 187 states have (on average 1.53475935828877) internal successors, (287), 188 states have internal predecessors, (287), 87 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2025-02-05 21:32:42,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2025-02-05 21:32:42,596 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:32:42,597 INFO L218 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:32:42,598 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:32:42,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:32:42,605 INFO L85 PathProgramCache]: Analyzing trace with hash -931471259, now seen corresponding path program 1 times [2025-02-05 21:32:42,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:32:42,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214417468] [2025-02-05 21:32:42,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:32:42,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:32:42,759 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 540 statements into 1 equivalence classes. [2025-02-05 21:32:42,802 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 540 of 540 statements. [2025-02-05 21:32:42,803 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:32:42,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:32:43,351 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 14792 trivial. 0 not checked. [2025-02-05 21:32:43,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:32:43,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214417468] [2025-02-05 21:32:43,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214417468] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 21:32:43,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564939259] [2025-02-05 21:32:43,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:32:43,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 21:32:43,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 21:32:43,360 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) [2025-02-05 21:32:43,361 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 [2025-02-05 21:32:43,514 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 540 statements into 1 equivalence classes. [2025-02-05 21:32:43,695 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 540 of 540 statements. [2025-02-05 21:32:43,696 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:32:43,696 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:32:43,702 INFO L256 TraceCheckSpWp]: Trace formula consists of 1186 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-05 21:32:43,730 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 21:32:43,794 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 172 proven. 0 refuted. 0 times theorem prover too weak. 14792 trivial. 0 not checked. [2025-02-05 21:32:43,794 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 21:32:43,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564939259] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 21:32:43,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 21:32:43,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-05 21:32:43,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068884467] [2025-02-05 21:32:43,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 21:32:43,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-05 21:32:43,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:32:43,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-05 21:32:43,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 21:32:43,833 INFO L87 Difference]: Start difference. First operand has 277 states, 187 states have (on average 1.53475935828877) internal successors, (287), 188 states have internal predecessors, (287), 87 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) Second operand has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 2 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 2 states have call successors, (87) [2025-02-05 21:32:43,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 21:32:43,921 INFO L93 Difference]: Finished difference Result 546 states and 1000 transitions. [2025-02-05 21:32:43,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-05 21:32:43,924 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 2 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 2 states have call successors, (87) Word has length 540 [2025-02-05 21:32:43,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 21:32:43,932 INFO L225 Difference]: With dead ends: 546 [2025-02-05 21:32:43,932 INFO L226 Difference]: Without dead ends: 272 [2025-02-05 21:32:43,938 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 541 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 21:32:43,941 INFO L435 NwaCegarLoop]: 435 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 21:32:43,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 435 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 21:32:43,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2025-02-05 21:32:44,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 272. [2025-02-05 21:32:44,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 183 states have (on average 1.5136612021857923) internal successors, (277), 183 states have internal predecessors, (277), 87 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2025-02-05 21:32:44,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 451 transitions. [2025-02-05 21:32:44,039 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 451 transitions. Word has length 540 [2025-02-05 21:32:44,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 21:32:44,040 INFO L471 AbstractCegarLoop]: Abstraction has 272 states and 451 transitions. [2025-02-05 21:32:44,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 2 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 2 states have call successors, (87) [2025-02-05 21:32:44,042 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 451 transitions. [2025-02-05 21:32:44,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2025-02-05 21:32:44,058 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:32:44,058 INFO L218 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:32:44,068 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-05 21:32:44,259 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 [2025-02-05 21:32:44,259 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:32:44,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:32:44,260 INFO L85 PathProgramCache]: Analyzing trace with hash 654618822, now seen corresponding path program 1 times [2025-02-05 21:32:44,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:32:44,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134274710] [2025-02-05 21:32:44,261 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:32:44,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:32:44,314 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 540 statements into 1 equivalence classes. [2025-02-05 21:32:44,455 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 540 of 540 statements. [2025-02-05 21:32:44,456 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:32:44,456 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:32:45,457 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2025-02-05 21:32:45,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:32:45,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134274710] [2025-02-05 21:32:45,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134274710] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 21:32:45,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 21:32:45,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 21:32:45,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305185730] [2025-02-05 21:32:45,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 21:32:45,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 21:32:45,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:32:45,464 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 21:32:45,464 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 21:32:45,465 INFO L87 Difference]: Start difference. First operand 272 states and 451 transitions. Second operand has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2025-02-05 21:32:45,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 21:32:45,661 INFO L93 Difference]: Finished difference Result 814 states and 1354 transitions. [2025-02-05 21:32:45,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 21:32:45,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) Word has length 540 [2025-02-05 21:32:45,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 21:32:45,671 INFO L225 Difference]: With dead ends: 814 [2025-02-05 21:32:45,674 INFO L226 Difference]: Without dead ends: 545 [2025-02-05 21:32:45,675 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-05 21:32:45,676 INFO L435 NwaCegarLoop]: 429 mSDtfsCounter, 304 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 21:32:45,676 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 1279 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 21:32:45,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2025-02-05 21:32:45,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 540. [2025-02-05 21:32:45,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 363 states have (on average 1.5151515151515151) internal successors, (550), 363 states have internal predecessors, (550), 174 states have call successors, (174), 2 states have call predecessors, (174), 2 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2025-02-05 21:32:45,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 898 transitions. [2025-02-05 21:32:45,810 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 898 transitions. Word has length 540 [2025-02-05 21:32:45,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 21:32:45,813 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 898 transitions. [2025-02-05 21:32:45,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.0) internal successors, (108), 4 states have internal predecessors, (108), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2025-02-05 21:32:45,814 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 898 transitions. [2025-02-05 21:32:45,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2025-02-05 21:32:45,824 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:32:45,824 INFO L218 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:32:45,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-05 21:32:45,825 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:32:45,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:32:45,826 INFO L85 PathProgramCache]: Analyzing trace with hash 465120620, now seen corresponding path program 1 times [2025-02-05 21:32:45,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:32:45,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146544841] [2025-02-05 21:32:45,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:32:45,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:32:45,863 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 541 statements into 1 equivalence classes. [2025-02-05 21:32:45,921 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 541 of 541 statements. [2025-02-05 21:32:45,922 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:32:45,922 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:32:47,041 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2025-02-05 21:32:47,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:32:47,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146544841] [2025-02-05 21:32:47,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146544841] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 21:32:47,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 21:32:47,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 21:32:47,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696072497] [2025-02-05 21:32:47,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 21:32:47,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 21:32:47,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:32:47,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 21:32:47,045 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-05 21:32:47,046 INFO L87 Difference]: Start difference. First operand 540 states and 898 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2025-02-05 21:32:47,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 21:32:47,758 INFO L93 Difference]: Finished difference Result 1435 states and 2391 transitions. [2025-02-05 21:32:47,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 21:32:47,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) Word has length 541 [2025-02-05 21:32:47,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 21:32:47,773 INFO L225 Difference]: With dead ends: 1435 [2025-02-05 21:32:47,776 INFO L226 Difference]: Without dead ends: 898 [2025-02-05 21:32:47,778 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-02-05 21:32:47,779 INFO L435 NwaCegarLoop]: 429 mSDtfsCounter, 415 mSDsluCounter, 1099 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 1528 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-05 21:32:47,779 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 1528 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-05 21:32:47,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2025-02-05 21:32:47,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 836. [2025-02-05 21:32:47,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 571 states have (on average 1.5359019264448337) internal successors, (877), 571 states have internal predecessors, (877), 261 states have call successors, (261), 3 states have call predecessors, (261), 3 states have return successors, (261), 261 states have call predecessors, (261), 261 states have call successors, (261) [2025-02-05 21:32:47,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1399 transitions. [2025-02-05 21:32:47,967 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1399 transitions. Word has length 541 [2025-02-05 21:32:47,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 21:32:47,969 INFO L471 AbstractCegarLoop]: Abstraction has 836 states and 1399 transitions. [2025-02-05 21:32:47,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2025-02-05 21:32:47,969 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1399 transitions. [2025-02-05 21:32:47,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2025-02-05 21:32:47,978 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:32:47,978 INFO L218 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:32:47,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-05 21:32:47,979 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:32:47,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:32:47,979 INFO L85 PathProgramCache]: Analyzing trace with hash -10410872, now seen corresponding path program 1 times [2025-02-05 21:32:47,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:32:47,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549629362] [2025-02-05 21:32:47,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:32:47,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:32:48,018 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 542 statements into 1 equivalence classes. [2025-02-05 21:32:48,229 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 542 of 542 statements. [2025-02-05 21:32:48,229 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:32:48,229 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:32:50,071 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2025-02-05 21:32:50,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:32:50,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549629362] [2025-02-05 21:32:50,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549629362] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 21:32:50,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 21:32:50,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-05 21:32:50,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807616387] [2025-02-05 21:32:50,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 21:32:50,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 21:32:50,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:32:50,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 21:32:50,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-02-05 21:32:50,075 INFO L87 Difference]: Start difference. First operand 836 states and 1399 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 2 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) [2025-02-05 21:32:52,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 21:32:52,102 INFO L93 Difference]: Finished difference Result 2645 states and 4375 transitions. [2025-02-05 21:32:52,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 21:32:52,103 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 2 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) Word has length 542 [2025-02-05 21:32:52,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 21:32:52,119 INFO L225 Difference]: With dead ends: 2645 [2025-02-05 21:32:52,120 INFO L226 Difference]: Without dead ends: 2099 [2025-02-05 21:32:52,123 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2025-02-05 21:32:52,124 INFO L435 NwaCegarLoop]: 857 mSDtfsCounter, 1619 mSDsluCounter, 1512 mSDsCounter, 0 mSdLazyCounter, 1023 mSolverCounterSat, 257 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1619 SdHoareTripleChecker+Valid, 2369 SdHoareTripleChecker+Invalid, 1280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 257 IncrementalHoareTripleChecker+Valid, 1023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2025-02-05 21:32:52,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1619 Valid, 2369 Invalid, 1280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [257 Valid, 1023 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2025-02-05 21:32:52,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2099 states. [2025-02-05 21:32:52,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2099 to 1866. [2025-02-05 21:32:52,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1866 states, 1332 states have (on average 1.545045045045045) internal successors, (2058), 1336 states have internal predecessors, (2058), 524 states have call successors, (524), 9 states have call predecessors, (524), 9 states have return successors, (524), 520 states have call predecessors, (524), 524 states have call successors, (524) [2025-02-05 21:32:52,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1866 states to 1866 states and 3106 transitions. [2025-02-05 21:32:52,407 INFO L78 Accepts]: Start accepts. Automaton has 1866 states and 3106 transitions. Word has length 542 [2025-02-05 21:32:52,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 21:32:52,409 INFO L471 AbstractCegarLoop]: Abstraction has 1866 states and 3106 transitions. [2025-02-05 21:32:52,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 7 states have internal predecessors, (110), 2 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) [2025-02-05 21:32:52,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1866 states and 3106 transitions. [2025-02-05 21:32:52,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2025-02-05 21:32:52,418 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:32:52,418 INFO L218 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:32:52,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-05 21:32:52,419 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:32:52,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:32:52,419 INFO L85 PathProgramCache]: Analyzing trace with hash -77417625, now seen corresponding path program 1 times [2025-02-05 21:32:52,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:32:52,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901742275] [2025-02-05 21:32:52,420 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:32:52,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:32:52,456 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 542 statements into 1 equivalence classes. [2025-02-05 21:32:52,515 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 542 of 542 statements. [2025-02-05 21:32:52,515 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:32:52,515 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:32:53,011 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2025-02-05 21:32:53,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:32:53,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901742275] [2025-02-05 21:32:53,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901742275] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 21:32:53,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 21:32:53,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 21:32:53,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134882153] [2025-02-05 21:32:53,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 21:32:53,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 21:32:53,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:32:53,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 21:32:53,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-05 21:32:53,016 INFO L87 Difference]: Start difference. First operand 1866 states and 3106 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2025-02-05 21:32:53,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 21:32:53,749 INFO L93 Difference]: Finished difference Result 5285 states and 8753 transitions. [2025-02-05 21:32:53,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 21:32:53,749 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) Word has length 542 [2025-02-05 21:32:53,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 21:32:53,781 INFO L225 Difference]: With dead ends: 5285 [2025-02-05 21:32:53,782 INFO L226 Difference]: Without dead ends: 3843 [2025-02-05 21:32:53,787 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 [2025-02-05 21:32:53,788 INFO L435 NwaCegarLoop]: 651 mSDtfsCounter, 528 mSDsluCounter, 671 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 1322 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-05 21:32:53,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 1322 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-05 21:32:53,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3843 states. [2025-02-05 21:32:54,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3843 to 3834. [2025-02-05 21:32:54,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3834 states, 2739 states have (on average 1.5348667396860167) internal successors, (4204), 2750 states have internal predecessors, (4204), 1075 states have call successors, (1075), 19 states have call predecessors, (1075), 19 states have return successors, (1075), 1064 states have call predecessors, (1075), 1075 states have call successors, (1075) [2025-02-05 21:32:54,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3834 states to 3834 states and 6354 transitions. [2025-02-05 21:32:54,322 INFO L78 Accepts]: Start accepts. Automaton has 3834 states and 6354 transitions. Word has length 542 [2025-02-05 21:32:54,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 21:32:54,323 INFO L471 AbstractCegarLoop]: Abstraction has 3834 states and 6354 transitions. [2025-02-05 21:32:54,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2025-02-05 21:32:54,323 INFO L276 IsEmpty]: Start isEmpty. Operand 3834 states and 6354 transitions. [2025-02-05 21:32:54,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2025-02-05 21:32:54,329 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:32:54,329 INFO L218 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:32:54,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-05 21:32:54,329 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:32:54,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:32:54,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1711151351, now seen corresponding path program 1 times [2025-02-05 21:32:54,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:32:54,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569352563] [2025-02-05 21:32:54,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:32:54,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:32:54,363 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 542 statements into 1 equivalence classes. [2025-02-05 21:32:54,610 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 542 of 542 statements. [2025-02-05 21:32:54,611 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:32:54,611 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:32:55,046 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 129 proven. 129 refuted. 0 times theorem prover too weak. 14706 trivial. 0 not checked. [2025-02-05 21:32:55,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:32:55,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569352563] [2025-02-05 21:32:55,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569352563] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 21:32:55,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72218466] [2025-02-05 21:32:55,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:32:55,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 21:32:55,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 21:32:55,050 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) [2025-02-05 21:32:55,053 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 [2025-02-05 21:32:55,201 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 542 statements into 1 equivalence classes. [2025-02-05 21:32:55,371 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 542 of 542 statements. [2025-02-05 21:32:55,371 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:32:55,371 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:32:55,378 INFO L256 TraceCheckSpWp]: Trace formula consists of 1188 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-05 21:32:55,391 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 21:32:56,031 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 7568 proven. 129 refuted. 0 times theorem prover too weak. 7267 trivial. 0 not checked. [2025-02-05 21:32:56,032 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-05 21:32:56,673 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 129 proven. 129 refuted. 0 times theorem prover too weak. 14706 trivial. 0 not checked. [2025-02-05 21:32:56,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72218466] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-05 21:32:56,674 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-05 21:32:56,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2025-02-05 21:32:56,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162398036] [2025-02-05 21:32:56,674 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-05 21:32:56,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 21:32:56,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:32:56,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 21:32:56,677 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-02-05 21:32:56,677 INFO L87 Difference]: Start difference. First operand 3834 states and 6354 transitions. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 2 states have call successors, (130), 2 states have call predecessors, (130), 4 states have return successors, (131), 2 states have call predecessors, (131), 2 states have call successors, (131) [2025-02-05 21:32:57,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 21:32:57,407 INFO L93 Difference]: Finished difference Result 6012 states and 9916 transitions. [2025-02-05 21:32:57,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-05 21:32:57,408 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 2 states have call successors, (130), 2 states have call predecessors, (130), 4 states have return successors, (131), 2 states have call predecessors, (131), 2 states have call successors, (131) Word has length 542 [2025-02-05 21:32:57,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 21:32:57,430 INFO L225 Difference]: With dead ends: 6012 [2025-02-05 21:32:57,430 INFO L226 Difference]: Without dead ends: 2358 [2025-02-05 21:32:57,443 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1091 GetRequests, 1081 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2025-02-05 21:32:57,445 INFO L435 NwaCegarLoop]: 324 mSDtfsCounter, 443 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-02-05 21:32:57,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 797 Invalid, 593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-02-05 21:32:57,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2358 states. [2025-02-05 21:32:57,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2358 to 2322. [2025-02-05 21:32:57,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2322 states, 1665 states have (on average 1.5075075075075075) internal successors, (2510), 1672 states have internal predecessors, (2510), 638 states have call successors, (638), 18 states have call predecessors, (638), 18 states have return successors, (638), 631 states have call predecessors, (638), 638 states have call successors, (638) [2025-02-05 21:32:57,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2322 states to 2322 states and 3786 transitions. [2025-02-05 21:32:57,732 INFO L78 Accepts]: Start accepts. Automaton has 2322 states and 3786 transitions. Word has length 542 [2025-02-05 21:32:57,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 21:32:57,733 INFO L471 AbstractCegarLoop]: Abstraction has 2322 states and 3786 transitions. [2025-02-05 21:32:57,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 2 states have call successors, (130), 2 states have call predecessors, (130), 4 states have return successors, (131), 2 states have call predecessors, (131), 2 states have call successors, (131) [2025-02-05 21:32:57,734 INFO L276 IsEmpty]: Start isEmpty. Operand 2322 states and 3786 transitions. [2025-02-05 21:32:57,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2025-02-05 21:32:57,738 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:32:57,739 INFO L218 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:32:57,750 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-02-05 21:32:57,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 21:32:57,940 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:32:57,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:32:57,941 INFO L85 PathProgramCache]: Analyzing trace with hash 211371056, now seen corresponding path program 1 times [2025-02-05 21:32:57,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:32:57,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106147722] [2025-02-05 21:32:57,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:32:57,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:32:57,967 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 543 statements into 1 equivalence classes. [2025-02-05 21:32:58,122 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 543 of 543 statements. [2025-02-05 21:32:58,123 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:32:58,123 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:33:01,728 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2025-02-05 21:33:01,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:33:01,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106147722] [2025-02-05 21:33:01,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106147722] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 21:33:01,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 21:33:01,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2025-02-05 21:33:01,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928776778] [2025-02-05 21:33:01,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 21:33:01,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-05 21:33:01,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:33:01,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-05 21:33:01,731 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2025-02-05 21:33:01,731 INFO L87 Difference]: Start difference. First operand 2322 states and 3786 transitions. Second operand has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 3 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 3 states have call predecessors, (87), 3 states have call successors, (87) [2025-02-05 21:33:10,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 21:33:10,574 INFO L93 Difference]: Finished difference Result 10447 states and 16988 transitions. [2025-02-05 21:33:10,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-02-05 21:33:10,574 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 3 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 3 states have call predecessors, (87), 3 states have call successors, (87) Word has length 543 [2025-02-05 21:33:10,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 21:33:10,630 INFO L225 Difference]: With dead ends: 10447 [2025-02-05 21:33:10,630 INFO L226 Difference]: Without dead ends: 9674 [2025-02-05 21:33:10,637 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=282, Invalid=648, Unknown=0, NotChecked=0, Total=930 [2025-02-05 21:33:10,638 INFO L435 NwaCegarLoop]: 998 mSDtfsCounter, 3179 mSDsluCounter, 3426 mSDsCounter, 0 mSdLazyCounter, 3709 mSolverCounterSat, 880 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3179 SdHoareTripleChecker+Valid, 4424 SdHoareTripleChecker+Invalid, 4589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 880 IncrementalHoareTripleChecker+Valid, 3709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2025-02-05 21:33:10,638 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3179 Valid, 4424 Invalid, 4589 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [880 Valid, 3709 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2025-02-05 21:33:10,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9674 states. [2025-02-05 21:33:11,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9674 to 7361. [2025-02-05 21:33:11,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7361 states, 5529 states have (on average 1.5257731958762886) internal successors, (8436), 5565 states have internal predecessors, (8436), 1769 states have call successors, (1769), 62 states have call predecessors, (1769), 62 states have return successors, (1769), 1733 states have call predecessors, (1769), 1769 states have call successors, (1769) [2025-02-05 21:33:11,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7361 states to 7361 states and 11974 transitions. [2025-02-05 21:33:11,645 INFO L78 Accepts]: Start accepts. Automaton has 7361 states and 11974 transitions. Word has length 543 [2025-02-05 21:33:11,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 21:33:11,646 INFO L471 AbstractCegarLoop]: Abstraction has 7361 states and 11974 transitions. [2025-02-05 21:33:11,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 3 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 3 states have call predecessors, (87), 3 states have call successors, (87) [2025-02-05 21:33:11,647 INFO L276 IsEmpty]: Start isEmpty. Operand 7361 states and 11974 transitions. [2025-02-05 21:33:11,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2025-02-05 21:33:11,664 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:33:11,665 INFO L218 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:33:11,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-05 21:33:11,665 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:33:11,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:33:11,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1818743793, now seen corresponding path program 1 times [2025-02-05 21:33:11,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:33:11,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258126985] [2025-02-05 21:33:11,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:33:11,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:33:11,702 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 543 statements into 1 equivalence classes. [2025-02-05 21:33:11,743 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 543 of 543 statements. [2025-02-05 21:33:11,743 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:33:11,743 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:33:12,129 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2025-02-05 21:33:12,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:33:12,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258126985] [2025-02-05 21:33:12,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258126985] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 21:33:12,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 21:33:12,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 21:33:12,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847425511] [2025-02-05 21:33:12,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 21:33:12,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 21:33:12,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:33:12,131 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 21:33:12,131 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-05 21:33:12,133 INFO L87 Difference]: Start difference. First operand 7361 states and 11974 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2025-02-05 21:33:13,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 21:33:13,170 INFO L93 Difference]: Finished difference Result 13818 states and 22421 transitions. [2025-02-05 21:33:13,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 21:33:13,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) Word has length 543 [2025-02-05 21:33:13,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 21:33:13,255 INFO L225 Difference]: With dead ends: 13818 [2025-02-05 21:33:13,256 INFO L226 Difference]: Without dead ends: 7617 [2025-02-05 21:33:13,280 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 [2025-02-05 21:33:13,281 INFO L435 NwaCegarLoop]: 410 mSDtfsCounter, 439 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-05 21:33:13,282 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 640 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-05 21:33:13,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7617 states. [2025-02-05 21:33:14,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7617 to 7425. [2025-02-05 21:33:14,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7425 states, 5593 states have (on average 1.5197568389057752) internal successors, (8500), 5629 states have internal predecessors, (8500), 1769 states have call successors, (1769), 62 states have call predecessors, (1769), 62 states have return successors, (1769), 1733 states have call predecessors, (1769), 1769 states have call successors, (1769) [2025-02-05 21:33:14,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7425 states to 7425 states and 12038 transitions. [2025-02-05 21:33:14,219 INFO L78 Accepts]: Start accepts. Automaton has 7425 states and 12038 transitions. Word has length 543 [2025-02-05 21:33:14,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 21:33:14,220 INFO L471 AbstractCegarLoop]: Abstraction has 7425 states and 12038 transitions. [2025-02-05 21:33:14,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2025-02-05 21:33:14,221 INFO L276 IsEmpty]: Start isEmpty. Operand 7425 states and 12038 transitions. [2025-02-05 21:33:14,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2025-02-05 21:33:14,227 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:33:14,227 INFO L218 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:33:14,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-05 21:33:14,228 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:33:14,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:33:14,232 INFO L85 PathProgramCache]: Analyzing trace with hash 137135657, now seen corresponding path program 1 times [2025-02-05 21:33:14,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:33:14,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818588446] [2025-02-05 21:33:14,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:33:14,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:33:14,257 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 544 statements into 1 equivalence classes. [2025-02-05 21:33:14,280 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 544 of 544 statements. [2025-02-05 21:33:14,280 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:33:14,280 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:33:14,445 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2025-02-05 21:33:14,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:33:14,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818588446] [2025-02-05 21:33:14,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818588446] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 21:33:14,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 21:33:14,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 21:33:14,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500211357] [2025-02-05 21:33:14,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 21:33:14,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 21:33:14,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:33:14,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 21:33:14,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 21:33:14,448 INFO L87 Difference]: Start difference. First operand 7425 states and 12038 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2025-02-05 21:33:16,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 21:33:16,240 INFO L93 Difference]: Finished difference Result 20031 states and 32410 transitions. [2025-02-05 21:33:16,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 21:33:16,241 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) Word has length 544 [2025-02-05 21:33:16,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 21:33:16,384 INFO L225 Difference]: With dead ends: 20031 [2025-02-05 21:33:16,385 INFO L226 Difference]: Without dead ends: 13790 [2025-02-05 21:33:16,405 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 21:33:16,405 INFO L435 NwaCegarLoop]: 405 mSDtfsCounter, 227 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 800 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 21:33:16,406 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 800 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 21:33:16,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13790 states. [2025-02-05 21:33:17,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13790 to 13754. [2025-02-05 21:33:17,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13754 states, 10607 states have (on average 1.5271047421514095) internal successors, (16198), 10683 states have internal predecessors, (16198), 3037 states have call successors, (3037), 109 states have call predecessors, (3037), 109 states have return successors, (3037), 2961 states have call predecessors, (3037), 3037 states have call successors, (3037) [2025-02-05 21:33:17,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13754 states to 13754 states and 22272 transitions. [2025-02-05 21:33:17,886 INFO L78 Accepts]: Start accepts. Automaton has 13754 states and 22272 transitions. Word has length 544 [2025-02-05 21:33:17,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 21:33:17,887 INFO L471 AbstractCegarLoop]: Abstraction has 13754 states and 22272 transitions. [2025-02-05 21:33:17,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2025-02-05 21:33:17,887 INFO L276 IsEmpty]: Start isEmpty. Operand 13754 states and 22272 transitions. [2025-02-05 21:33:17,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2025-02-05 21:33:17,896 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:33:17,897 INFO L218 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:33:17,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-05 21:33:17,897 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:33:17,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:33:17,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1148897189, now seen corresponding path program 1 times [2025-02-05 21:33:17,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:33:17,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905604680] [2025-02-05 21:33:17,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:33:17,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:33:17,923 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 544 statements into 1 equivalence classes. [2025-02-05 21:33:17,943 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 544 of 544 statements. [2025-02-05 21:33:17,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:33:17,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:33:18,036 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2025-02-05 21:33:18,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:33:18,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905604680] [2025-02-05 21:33:18,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905604680] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 21:33:18,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 21:33:18,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 21:33:18,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605755221] [2025-02-05 21:33:18,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 21:33:18,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 21:33:18,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:33:18,038 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 21:33:18,038 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 21:33:18,039 INFO L87 Difference]: Start difference. First operand 13754 states and 22272 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2025-02-05 21:33:19,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 21:33:19,157 INFO L93 Difference]: Finished difference Result 25221 states and 40714 transitions. [2025-02-05 21:33:19,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 21:33:19,157 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) Word has length 544 [2025-02-05 21:33:19,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 21:33:19,220 INFO L225 Difference]: With dead ends: 25221 [2025-02-05 21:33:19,220 INFO L226 Difference]: Without dead ends: 13638 [2025-02-05 21:33:19,254 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 [2025-02-05 21:33:19,255 INFO L435 NwaCegarLoop]: 517 mSDtfsCounter, 195 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 21:33:19,255 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 918 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 21:33:19,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13638 states. [2025-02-05 21:33:20,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13638 to 13626. [2025-02-05 21:33:20,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13626 states, 10479 states have (on average 1.5213283710277699) internal successors, (15942), 10555 states have internal predecessors, (15942), 3037 states have call successors, (3037), 109 states have call predecessors, (3037), 109 states have return successors, (3037), 2961 states have call predecessors, (3037), 3037 states have call successors, (3037) [2025-02-05 21:33:20,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13626 states to 13626 states and 22016 transitions. [2025-02-05 21:33:20,886 INFO L78 Accepts]: Start accepts. Automaton has 13626 states and 22016 transitions. Word has length 544 [2025-02-05 21:33:20,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 21:33:20,887 INFO L471 AbstractCegarLoop]: Abstraction has 13626 states and 22016 transitions. [2025-02-05 21:33:20,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2025-02-05 21:33:20,888 INFO L276 IsEmpty]: Start isEmpty. Operand 13626 states and 22016 transitions. [2025-02-05 21:33:20,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2025-02-05 21:33:20,897 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:33:20,897 INFO L218 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:33:20,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-05 21:33:20,898 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:33:20,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:33:20,899 INFO L85 PathProgramCache]: Analyzing trace with hash 407238508, now seen corresponding path program 1 times [2025-02-05 21:33:20,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:33:20,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256795535] [2025-02-05 21:33:20,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:33:20,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:33:20,923 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 545 statements into 1 equivalence classes. [2025-02-05 21:33:21,090 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 545 of 545 statements. [2025-02-05 21:33:21,090 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:33:21,090 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:33:21,565 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 96 proven. 162 refuted. 0 times theorem prover too weak. 14706 trivial. 0 not checked. [2025-02-05 21:33:21,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:33:21,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256795535] [2025-02-05 21:33:21,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256795535] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 21:33:21,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1746124200] [2025-02-05 21:33:21,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:33:21,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 21:33:21,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 21:33:21,568 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) [2025-02-05 21:33:21,571 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 [2025-02-05 21:33:21,762 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 545 statements into 1 equivalence classes. [2025-02-05 21:33:22,007 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 545 of 545 statements. [2025-02-05 21:33:22,007 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:33:22,007 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:33:22,016 INFO L256 TraceCheckSpWp]: Trace formula consists of 1195 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-05 21:33:22,030 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 21:33:22,761 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 7062 proven. 162 refuted. 0 times theorem prover too weak. 7740 trivial. 0 not checked. [2025-02-05 21:33:22,761 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-05 21:33:23,634 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 96 proven. 162 refuted. 0 times theorem prover too weak. 14706 trivial. 0 not checked. [2025-02-05 21:33:23,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1746124200] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-05 21:33:23,635 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-05 21:33:23,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2025-02-05 21:33:23,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622553888] [2025-02-05 21:33:23,635 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-05 21:33:23,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-02-05 21:33:23,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:33:23,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-02-05 21:33:23,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2025-02-05 21:33:23,638 INFO L87 Difference]: Start difference. First operand 13626 states and 22016 transitions. Second operand has 14 states, 14 states have (on average 13.785714285714286) internal successors, (193), 14 states have internal predecessors, (193), 3 states have call successors, (195), 2 states have call predecessors, (195), 4 states have return successors, (196), 3 states have call predecessors, (196), 3 states have call successors, (196) [2025-02-05 21:33:25,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 21:33:25,743 INFO L93 Difference]: Finished difference Result 25778 states and 41098 transitions. [2025-02-05 21:33:25,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-05 21:33:25,744 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 13.785714285714286) internal successors, (193), 14 states have internal predecessors, (193), 3 states have call successors, (195), 2 states have call predecessors, (195), 4 states have return successors, (196), 3 states have call predecessors, (196), 3 states have call successors, (196) Word has length 545 [2025-02-05 21:33:25,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 21:33:25,817 INFO L225 Difference]: With dead ends: 25778 [2025-02-05 21:33:25,817 INFO L226 Difference]: Without dead ends: 14311 [2025-02-05 21:33:25,843 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1104 GetRequests, 1083 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2025-02-05 21:33:25,844 INFO L435 NwaCegarLoop]: 362 mSDtfsCounter, 769 mSDsluCounter, 1299 mSDsCounter, 0 mSdLazyCounter, 1194 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 1486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 1194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-05 21:33:25,845 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [833 Valid, 1661 Invalid, 1486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 1194 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-05 21:33:25,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14311 states. [2025-02-05 21:33:27,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14311 to 7641. [2025-02-05 21:33:27,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7641 states, 5739 states have (on average 1.4786548179125283) internal successors, (8486), 5775 states have internal predecessors, (8486), 1769 states have call successors, (1769), 132 states have call predecessors, (1769), 132 states have return successors, (1769), 1733 states have call predecessors, (1769), 1769 states have call successors, (1769) [2025-02-05 21:33:27,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7641 states to 7641 states and 12024 transitions. [2025-02-05 21:33:27,182 INFO L78 Accepts]: Start accepts. Automaton has 7641 states and 12024 transitions. Word has length 545 [2025-02-05 21:33:27,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 21:33:27,183 INFO L471 AbstractCegarLoop]: Abstraction has 7641 states and 12024 transitions. [2025-02-05 21:33:27,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 13.785714285714286) internal successors, (193), 14 states have internal predecessors, (193), 3 states have call successors, (195), 2 states have call predecessors, (195), 4 states have return successors, (196), 3 states have call predecessors, (196), 3 states have call successors, (196) [2025-02-05 21:33:27,184 INFO L276 IsEmpty]: Start isEmpty. Operand 7641 states and 12024 transitions. [2025-02-05 21:33:27,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2025-02-05 21:33:27,192 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:33:27,192 INFO L218 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:33:27,204 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-05 21:33:27,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 21:33:27,398 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:33:27,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:33:27,399 INFO L85 PathProgramCache]: Analyzing trace with hash 1285774663, now seen corresponding path program 1 times [2025-02-05 21:33:27,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:33:27,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861569141] [2025-02-05 21:33:27,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:33:27,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:33:27,422 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 545 statements into 1 equivalence classes. [2025-02-05 21:33:27,648 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 545 of 545 statements. [2025-02-05 21:33:27,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:33:27,652 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:33:28,371 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 96 proven. 162 refuted. 0 times theorem prover too weak. 14706 trivial. 0 not checked. [2025-02-05 21:33:28,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:33:28,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861569141] [2025-02-05 21:33:28,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861569141] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 21:33:28,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1575492510] [2025-02-05 21:33:28,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:33:28,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 21:33:28,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 21:33:28,374 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) [2025-02-05 21:33:28,376 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 [2025-02-05 21:33:28,532 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 545 statements into 1 equivalence classes. [2025-02-05 21:33:28,675 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 545 of 545 statements. [2025-02-05 21:33:28,675 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:33:28,675 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:33:28,680 INFO L256 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-02-05 21:33:28,692 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 21:33:30,654 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 7902 proven. 318 refuted. 0 times theorem prover too weak. 6744 trivial. 0 not checked. [2025-02-05 21:33:30,654 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-05 21:33:31,771 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 96 proven. 162 refuted. 0 times theorem prover too weak. 14706 trivial. 0 not checked. [2025-02-05 21:33:31,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1575492510] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-05 21:33:31,771 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-05 21:33:31,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 10] total 26 [2025-02-05 21:33:31,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595459271] [2025-02-05 21:33:31,772 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-05 21:33:31,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2025-02-05 21:33:31,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:33:31,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2025-02-05 21:33:31,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=516, Unknown=0, NotChecked=0, Total=650 [2025-02-05 21:33:31,777 INFO L87 Difference]: Start difference. First operand 7641 states and 12024 transitions. Second operand has 26 states, 26 states have (on average 10.884615384615385) internal successors, (283), 25 states have internal predecessors, (283), 8 states have call successors, (228), 4 states have call predecessors, (228), 6 states have return successors, (229), 8 states have call predecessors, (229), 8 states have call successors, (229) [2025-02-05 21:33:37,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 21:33:37,330 INFO L93 Difference]: Finished difference Result 17858 states and 27749 transitions. [2025-02-05 21:33:37,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2025-02-05 21:33:37,331 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 10.884615384615385) internal successors, (283), 25 states have internal predecessors, (283), 8 states have call successors, (228), 4 states have call predecessors, (228), 6 states have return successors, (229), 8 states have call predecessors, (229), 8 states have call successors, (229) Word has length 545 [2025-02-05 21:33:37,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 21:33:37,391 INFO L225 Difference]: With dead ends: 17858 [2025-02-05 21:33:37,391 INFO L226 Difference]: Without dead ends: 11337 [2025-02-05 21:33:37,413 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1158 GetRequests, 1081 SyntacticMatches, 1 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1514 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1236, Invalid=4770, Unknown=0, NotChecked=0, Total=6006 [2025-02-05 21:33:37,414 INFO L435 NwaCegarLoop]: 340 mSDtfsCounter, 5150 mSDsluCounter, 3108 mSDsCounter, 0 mSdLazyCounter, 2833 mSolverCounterSat, 2588 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5183 SdHoareTripleChecker+Valid, 3448 SdHoareTripleChecker+Invalid, 5421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2588 IncrementalHoareTripleChecker+Valid, 2833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2025-02-05 21:33:37,414 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5183 Valid, 3448 Invalid, 5421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2588 Valid, 2833 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2025-02-05 21:33:37,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11337 states. [2025-02-05 21:33:38,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11337 to 6654. [2025-02-05 21:33:38,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6654 states, 5494 states have (on average 1.5642519111758282) internal successors, (8594), 5510 states have internal predecessors, (8594), 1047 states have call successors, (1047), 112 states have call predecessors, (1047), 112 states have return successors, (1047), 1031 states have call predecessors, (1047), 1047 states have call successors, (1047) [2025-02-05 21:33:38,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6654 states to 6654 states and 10688 transitions. [2025-02-05 21:33:38,277 INFO L78 Accepts]: Start accepts. Automaton has 6654 states and 10688 transitions. Word has length 545 [2025-02-05 21:33:38,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 21:33:38,278 INFO L471 AbstractCegarLoop]: Abstraction has 6654 states and 10688 transitions. [2025-02-05 21:33:38,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 10.884615384615385) internal successors, (283), 25 states have internal predecessors, (283), 8 states have call successors, (228), 4 states have call predecessors, (228), 6 states have return successors, (229), 8 states have call predecessors, (229), 8 states have call successors, (229) [2025-02-05 21:33:38,279 INFO L276 IsEmpty]: Start isEmpty. Operand 6654 states and 10688 transitions. [2025-02-05 21:33:38,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2025-02-05 21:33:38,284 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:33:38,284 INFO L218 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:33:38,295 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-05 21:33:38,485 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,SelfDestructingSolverStorable11 [2025-02-05 21:33:38,485 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:33:38,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:33:38,486 INFO L85 PathProgramCache]: Analyzing trace with hash -644735960, now seen corresponding path program 1 times [2025-02-05 21:33:38,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:33:38,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705586367] [2025-02-05 21:33:38,487 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:33:38,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:33:38,508 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 545 statements into 1 equivalence classes. [2025-02-05 21:33:38,591 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 545 of 545 statements. [2025-02-05 21:33:38,594 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:33:38,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:33:39,127 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2025-02-05 21:33:39,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:33:39,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705586367] [2025-02-05 21:33:39,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705586367] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 21:33:39,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 21:33:39,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-05 21:33:39,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905132878] [2025-02-05 21:33:39,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 21:33:39,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-05 21:33:39,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:33:39,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-05 21:33:39,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2025-02-05 21:33:39,131 INFO L87 Difference]: Start difference. First operand 6654 states and 10688 transitions. Second operand has 8 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 2 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) [2025-02-05 21:33:40,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 21:33:40,663 INFO L93 Difference]: Finished difference Result 12727 states and 20179 transitions. [2025-02-05 21:33:40,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 21:33:40,664 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 2 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) Word has length 545 [2025-02-05 21:33:40,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 21:33:40,700 INFO L225 Difference]: With dead ends: 12727 [2025-02-05 21:33:40,700 INFO L226 Difference]: Without dead ends: 7637 [2025-02-05 21:33:40,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2025-02-05 21:33:40,714 INFO L435 NwaCegarLoop]: 597 mSDtfsCounter, 704 mSDsluCounter, 1948 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 2545 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 415 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-02-05 21:33:40,715 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 2545 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [415 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-02-05 21:33:40,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7637 states. [2025-02-05 21:33:41,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7637 to 6638. [2025-02-05 21:33:41,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6638 states, 5478 states have (on average 1.5629791894852136) internal successors, (8562), 5494 states have internal predecessors, (8562), 1047 states have call successors, (1047), 112 states have call predecessors, (1047), 112 states have return successors, (1047), 1031 states have call predecessors, (1047), 1047 states have call successors, (1047) [2025-02-05 21:33:41,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6638 states to 6638 states and 10656 transitions. [2025-02-05 21:33:41,512 INFO L78 Accepts]: Start accepts. Automaton has 6638 states and 10656 transitions. Word has length 545 [2025-02-05 21:33:41,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 21:33:41,513 INFO L471 AbstractCegarLoop]: Abstraction has 6638 states and 10656 transitions. [2025-02-05 21:33:41,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.125) internal successors, (113), 8 states have internal predecessors, (113), 2 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 2 states have call predecessors, (87), 2 states have call successors, (87) [2025-02-05 21:33:41,513 INFO L276 IsEmpty]: Start isEmpty. Operand 6638 states and 10656 transitions. [2025-02-05 21:33:41,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2025-02-05 21:33:41,518 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:33:41,518 INFO L218 NwaCegarLoop]: trace histogram [87, 87, 87, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:33:41,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-05 21:33:41,519 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:33:41,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:33:41,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1870846603, now seen corresponding path program 1 times [2025-02-05 21:33:41,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:33:41,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083013487] [2025-02-05 21:33:41,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:33:41,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:33:41,542 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 545 statements into 1 equivalence classes. [2025-02-05 21:33:41,559 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 545 of 545 statements. [2025-02-05 21:33:41,560 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:33:41,560 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:33:41,783 INFO L134 CoverageAnalysis]: Checked inductivity of 14964 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14964 trivial. 0 not checked. [2025-02-05 21:33:41,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:33:41,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083013487] [2025-02-05 21:33:41,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083013487] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 21:33:41,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 21:33:41,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 21:33:41,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907820141] [2025-02-05 21:33:41,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 21:33:41,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 21:33:41,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:33:41,785 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 21:33:41,785 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 21:33:41,785 INFO L87 Difference]: Start difference. First operand 6638 states and 10656 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 1 states have call successors, (87), 1 states have call predecessors, (87), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87)