./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-15.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-15.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 74819a618e8737460ffe2d5e187bd0878af8b759d0d399e9d2ada8d393705a62 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 02:37:20,435 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 02:37:20,475 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-06 02:37:20,478 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 02:37:20,479 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 02:37:20,493 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 02:37:20,494 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 02:37:20,494 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 02:37:20,494 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 02:37:20,494 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 02:37:20,494 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 02:37:20,494 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 02:37:20,495 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 02:37:20,495 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 02:37:20,495 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 02:37:20,495 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 02:37:20,495 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 02:37:20,495 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 02:37:20,495 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 02:37:20,495 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 02:37:20,495 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 02:37:20,495 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 02:37:20,496 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 02:37:20,496 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 02:37:20,496 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 02:37:20,496 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 02:37:20,496 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 02:37:20,496 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 02:37:20,496 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 02:37:20,496 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 02:37:20,496 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 02:37:20,496 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 02:37:20,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 02:37:20,497 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 02:37:20,497 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 02:37:20,497 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 02:37:20,497 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 02:37:20,497 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 02:37:20,497 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 02:37:20,497 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 02:37:20,497 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 02:37:20,497 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 02:37:20,497 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 02:37:20,497 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 -> 74819a618e8737460ffe2d5e187bd0878af8b759d0d399e9d2ada8d393705a62 [2025-02-06 02:37:20,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 02:37:20,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 02:37:20,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 02:37:20,705 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 02:37:20,705 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 02:37:20,706 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-15.i [2025-02-06 02:37:21,837 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/12fafbc53/8d2e472accd7459f97f25f5d342c9de4/FLAG674b7a85b [2025-02-06 02:37:22,198 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 02:37:22,199 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-15.i [2025-02-06 02:37:22,218 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/12fafbc53/8d2e472accd7459f97f25f5d342c9de4/FLAG674b7a85b [2025-02-06 02:37:22,416 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/12fafbc53/8d2e472accd7459f97f25f5d342c9de4 [2025-02-06 02:37:22,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 02:37:22,420 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 02:37:22,422 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 02:37:22,423 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 02:37:22,426 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 02:37:22,427 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:37:22" (1/1) ... [2025-02-06 02:37:22,428 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e42eceb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:22, skipping insertion in model container [2025-02-06 02:37:22,429 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:37:22" (1/1) ... [2025-02-06 02:37:22,468 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 02:37:22,590 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-15.i[916,929] [2025-02-06 02:37:22,754 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 02:37:22,769 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 02:37:22,780 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-15.i[916,929] [2025-02-06 02:37:22,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 02:37:22,888 INFO L204 MainTranslator]: Completed translation [2025-02-06 02:37:22,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:22 WrapperNode [2025-02-06 02:37:22,889 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 02:37:22,890 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 02:37:22,890 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 02:37:22,890 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 02:37:22,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:22" (1/1) ... [2025-02-06 02:37:22,915 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:22" (1/1) ... [2025-02-06 02:37:22,997 INFO L138 Inliner]: procedures = 26, calls = 105, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 816 [2025-02-06 02:37:22,997 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 02:37:22,998 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 02:37:22,998 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 02:37:22,998 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 02:37:23,007 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:22" (1/1) ... [2025-02-06 02:37:23,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:22" (1/1) ... [2025-02-06 02:37:23,028 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:22" (1/1) ... [2025-02-06 02:37:23,076 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-06 02:37:23,076 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:22" (1/1) ... [2025-02-06 02:37:23,076 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:22" (1/1) ... [2025-02-06 02:37:23,098 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:22" (1/1) ... [2025-02-06 02:37:23,103 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:22" (1/1) ... [2025-02-06 02:37:23,109 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:22" (1/1) ... [2025-02-06 02:37:23,116 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:22" (1/1) ... [2025-02-06 02:37:23,130 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 02:37:23,131 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 02:37:23,131 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 02:37:23,132 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 02:37:23,132 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:22" (1/1) ... [2025-02-06 02:37:23,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 02:37:23,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:37:23,158 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 02:37:23,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 02:37:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 02:37:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 02:37:23,176 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 02:37:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 02:37:23,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 02:37:23,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 02:37:23,303 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 02:37:23,304 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 02:37:24,135 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L694: havoc property_#t~ite60#1;havoc property_#t~bitwise59#1;havoc property_#t~short61#1;havoc property_#t~bitwise62#1;havoc property_#t~short63#1;havoc property_#t~ite65#1;havoc property_#t~bitwise64#1;havoc property_#t~short66#1;havoc property_#t~ite69#1;havoc property_#t~ite68#1;havoc property_#t~bitwise67#1;havoc property_#t~short70#1;havoc property_#t~bitwise71#1;havoc property_#t~short72#1;havoc property_#t~ite74#1;havoc property_#t~bitwise73#1;havoc property_#t~short75#1; [2025-02-06 02:37:24,393 INFO L? ?]: Removed 88 outVars from TransFormulas that were not future-live. [2025-02-06 02:37:24,394 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 02:37:24,418 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 02:37:24,418 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 02:37:24,419 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:37:24 BoogieIcfgContainer [2025-02-06 02:37:24,419 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 02:37:24,420 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 02:37:24,420 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 02:37:24,423 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 02:37:24,427 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 02:37:22" (1/3) ... [2025-02-06 02:37:24,428 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b3131f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:37:24, skipping insertion in model container [2025-02-06 02:37:24,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:37:22" (2/3) ... [2025-02-06 02:37:24,428 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b3131f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:37:24, skipping insertion in model container [2025-02-06 02:37:24,428 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:37:24" (3/3) ... [2025-02-06 02:37:24,429 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-15.i [2025-02-06 02:37:24,439 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 02:37:24,442 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount500_file-15.i that has 2 procedures, 326 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 02:37:24,489 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 02:37:24,496 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;@3f52f8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 02:37:24,496 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 02:37:24,500 INFO L276 IsEmpty]: Start isEmpty. Operand has 326 states, 231 states have (on average 1.5151515151515151) internal successors, (350), 232 states have internal predecessors, (350), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2025-02-06 02:37:24,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2025-02-06 02:37:24,520 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:37:24,521 INFO L218 NwaCegarLoop]: trace histogram [92, 92, 92, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:37:24,522 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:37:24,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:37:24,526 INFO L85 PathProgramCache]: Analyzing trace with hash -80440017, now seen corresponding path program 1 times [2025-02-06 02:37:24,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:37:24,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638016446] [2025-02-06 02:37:24,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:24,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:37:24,649 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 609 statements into 1 equivalence classes. [2025-02-06 02:37:24,681 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 609 of 609 statements. [2025-02-06 02:37:24,682 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:37:24,682 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:37:25,140 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 16562 trivial. 0 not checked. [2025-02-06 02:37:25,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:37:25,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638016446] [2025-02-06 02:37:25,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638016446] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:37:25,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1956940420] [2025-02-06 02:37:25,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:25,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:37:25,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:37:25,147 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 02:37:25,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 02:37:25,310 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 609 statements into 1 equivalence classes. [2025-02-06 02:37:25,526 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 609 of 609 statements. [2025-02-06 02:37:25,527 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:37:25,527 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:37:25,535 INFO L256 TraceCheckSpWp]: Trace formula consists of 1463 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 02:37:25,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:37:25,641 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 16562 trivial. 0 not checked. [2025-02-06 02:37:25,641 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 02:37:25,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1956940420] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:37:25,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 02:37:25,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 02:37:25,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383783446] [2025-02-06 02:37:25,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:37:25,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 02:37:25,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:37:25,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 02:37:25,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 02:37:25,673 INFO L87 Difference]: Start difference. First operand has 326 states, 231 states have (on average 1.5151515151515151) internal successors, (350), 232 states have internal predecessors, (350), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) Second operand has 2 states, 2 states have (on average 77.0) internal successors, (154), 2 states have internal predecessors, (154), 2 states have call successors, (92), 2 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 2 states have call successors, (92) [2025-02-06 02:37:25,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:37:25,771 INFO L93 Difference]: Finished difference Result 646 states and 1155 transitions. [2025-02-06 02:37:25,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 02:37:25,774 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 77.0) internal successors, (154), 2 states have internal predecessors, (154), 2 states have call successors, (92), 2 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 2 states have call successors, (92) Word has length 609 [2025-02-06 02:37:25,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:37:25,780 INFO L225 Difference]: With dead ends: 646 [2025-02-06 02:37:25,781 INFO L226 Difference]: Without dead ends: 323 [2025-02-06 02:37:25,785 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 610 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 02:37:25,787 INFO L435 NwaCegarLoop]: 517 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 02:37:25,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 517 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 02:37:25,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2025-02-06 02:37:25,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 323. [2025-02-06 02:37:25,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 229 states have (on average 1.5065502183406114) internal successors, (345), 229 states have internal predecessors, (345), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2025-02-06 02:37:25,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 529 transitions. [2025-02-06 02:37:25,843 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 529 transitions. Word has length 609 [2025-02-06 02:37:25,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:37:25,844 INFO L471 AbstractCegarLoop]: Abstraction has 323 states and 529 transitions. [2025-02-06 02:37:25,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 77.0) internal successors, (154), 2 states have internal predecessors, (154), 2 states have call successors, (92), 2 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 2 states have call successors, (92) [2025-02-06 02:37:25,844 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 529 transitions. [2025-02-06 02:37:25,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2025-02-06 02:37:25,857 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:37:25,858 INFO L218 NwaCegarLoop]: trace histogram [92, 92, 92, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:37:25,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-02-06 02:37:26,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-06 02:37:26,059 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:37:26,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:37:26,061 INFO L85 PathProgramCache]: Analyzing trace with hash -901123899, now seen corresponding path program 1 times [2025-02-06 02:37:26,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:37:26,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017918147] [2025-02-06 02:37:26,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:26,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:37:26,114 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 609 statements into 1 equivalence classes. [2025-02-06 02:37:26,198 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 609 of 609 statements. [2025-02-06 02:37:26,202 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:37:26,203 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:37:26,770 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2025-02-06 02:37:26,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:37:26,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017918147] [2025-02-06 02:37:26,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017918147] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:37:26,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:37:26,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 02:37:26,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685041369] [2025-02-06 02:37:26,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:37:26,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 02:37:26,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:37:26,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 02:37:26,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 02:37:26,777 INFO L87 Difference]: Start difference. First operand 323 states and 529 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2025-02-06 02:37:26,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:37:26,950 INFO L93 Difference]: Finished difference Result 961 states and 1577 transitions. [2025-02-06 02:37:26,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 02:37:26,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) Word has length 609 [2025-02-06 02:37:26,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:37:26,961 INFO L225 Difference]: With dead ends: 961 [2025-02-06 02:37:26,961 INFO L226 Difference]: Without dead ends: 641 [2025-02-06 02:37:26,963 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 02:37:26,964 INFO L435 NwaCegarLoop]: 677 mSDtfsCounter, 515 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:37:26,964 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 1172 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 02:37:26,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2025-02-06 02:37:27,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 344. [2025-02-06 02:37:27,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 250 states have (on average 1.52) internal successors, (380), 250 states have internal predecessors, (380), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2025-02-06 02:37:27,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 564 transitions. [2025-02-06 02:37:27,028 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 564 transitions. Word has length 609 [2025-02-06 02:37:27,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:37:27,032 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 564 transitions. [2025-02-06 02:37:27,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2025-02-06 02:37:27,033 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 564 transitions. [2025-02-06 02:37:27,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2025-02-06 02:37:27,042 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:37:27,042 INFO L218 NwaCegarLoop]: trace histogram [92, 92, 92, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:37:27,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 02:37:27,042 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:37:27,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:37:27,043 INFO L85 PathProgramCache]: Analyzing trace with hash -331661262, now seen corresponding path program 1 times [2025-02-06 02:37:27,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:37:27,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531149723] [2025-02-06 02:37:27,045 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:27,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:37:27,101 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 610 statements into 1 equivalence classes. [2025-02-06 02:37:27,170 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 610 of 610 statements. [2025-02-06 02:37:27,173 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:37:27,173 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:37:27,440 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2025-02-06 02:37:27,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:37:27,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531149723] [2025-02-06 02:37:27,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531149723] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:37:27,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:37:27,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 02:37:27,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684661412] [2025-02-06 02:37:27,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:37:27,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 02:37:27,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:37:27,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 02:37:27,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 02:37:27,451 INFO L87 Difference]: Start difference. First operand 344 states and 564 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2025-02-06 02:37:27,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:37:27,605 INFO L93 Difference]: Finished difference Result 1022 states and 1678 transitions. [2025-02-06 02:37:27,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 02:37:27,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) Word has length 610 [2025-02-06 02:37:27,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:37:27,614 INFO L225 Difference]: With dead ends: 1022 [2025-02-06 02:37:27,614 INFO L226 Difference]: Without dead ends: 681 [2025-02-06 02:37:27,617 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 02:37:27,617 INFO L435 NwaCegarLoop]: 822 mSDtfsCounter, 476 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1315 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:37:27,617 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 1315 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 02:37:27,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2025-02-06 02:37:27,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 677. [2025-02-06 02:37:27,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 490 states have (on average 1.510204081632653) internal successors, (740), 490 states have internal predecessors, (740), 184 states have call successors, (184), 2 states have call predecessors, (184), 2 states have return successors, (184), 184 states have call predecessors, (184), 184 states have call successors, (184) [2025-02-06 02:37:27,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 1108 transitions. [2025-02-06 02:37:27,715 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 1108 transitions. Word has length 610 [2025-02-06 02:37:27,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:37:27,716 INFO L471 AbstractCegarLoop]: Abstraction has 677 states and 1108 transitions. [2025-02-06 02:37:27,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2025-02-06 02:37:27,717 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 1108 transitions. [2025-02-06 02:37:27,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2025-02-06 02:37:27,726 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:37:27,726 INFO L218 NwaCegarLoop]: trace histogram [92, 92, 92, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:37:27,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 02:37:27,727 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:37:27,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:37:27,727 INFO L85 PathProgramCache]: Analyzing trace with hash 87855569, now seen corresponding path program 1 times [2025-02-06 02:37:27,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:37:27,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913670395] [2025-02-06 02:37:27,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:27,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:37:27,769 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 610 statements into 1 equivalence classes. [2025-02-06 02:37:27,832 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 610 of 610 statements. [2025-02-06 02:37:27,832 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:37:27,832 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:37:28,073 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2025-02-06 02:37:28,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:37:28,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913670395] [2025-02-06 02:37:28,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913670395] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:37:28,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:37:28,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 02:37:28,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061314467] [2025-02-06 02:37:28,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:37:28,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 02:37:28,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:37:28,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 02:37:28,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 02:37:28,076 INFO L87 Difference]: Start difference. First operand 677 states and 1108 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2025-02-06 02:37:28,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:37:28,188 INFO L93 Difference]: Finished difference Result 1358 states and 2223 transitions. [2025-02-06 02:37:28,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 02:37:28,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) Word has length 610 [2025-02-06 02:37:28,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:37:28,194 INFO L225 Difference]: With dead ends: 1358 [2025-02-06 02:37:28,194 INFO L226 Difference]: Without dead ends: 684 [2025-02-06 02:37:28,196 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 02:37:28,197 INFO L435 NwaCegarLoop]: 698 mSDtfsCounter, 466 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:37:28,197 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 1193 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 02:37:28,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2025-02-06 02:37:28,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 680. [2025-02-06 02:37:28,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 493 states have (on average 1.5050709939148073) internal successors, (742), 493 states have internal predecessors, (742), 184 states have call successors, (184), 2 states have call predecessors, (184), 2 states have return successors, (184), 184 states have call predecessors, (184), 184 states have call successors, (184) [2025-02-06 02:37:28,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 1110 transitions. [2025-02-06 02:37:28,262 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 1110 transitions. Word has length 610 [2025-02-06 02:37:28,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:37:28,265 INFO L471 AbstractCegarLoop]: Abstraction has 680 states and 1110 transitions. [2025-02-06 02:37:28,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2025-02-06 02:37:28,266 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 1110 transitions. [2025-02-06 02:37:28,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2025-02-06 02:37:28,270 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:37:28,271 INFO L218 NwaCegarLoop]: trace histogram [92, 92, 92, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:37:28,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 02:37:28,272 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:37:28,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:37:28,273 INFO L85 PathProgramCache]: Analyzing trace with hash -448332148, now seen corresponding path program 1 times [2025-02-06 02:37:28,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:37:28,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455873256] [2025-02-06 02:37:28,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:28,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:37:28,319 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 611 statements into 1 equivalence classes. [2025-02-06 02:37:28,373 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 611 of 611 statements. [2025-02-06 02:37:28,374 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:37:28,375 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:37:28,630 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2025-02-06 02:37:28,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:37:28,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455873256] [2025-02-06 02:37:28,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455873256] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:37:28,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:37:28,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 02:37:28,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065546618] [2025-02-06 02:37:28,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:37:28,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 02:37:28,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:37:28,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 02:37:28,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 02:37:28,633 INFO L87 Difference]: Start difference. First operand 680 states and 1110 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2025-02-06 02:37:28,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:37:28,767 INFO L93 Difference]: Finished difference Result 1653 states and 2674 transitions. [2025-02-06 02:37:28,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 02:37:28,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) Word has length 611 [2025-02-06 02:37:28,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:37:28,775 INFO L225 Difference]: With dead ends: 1653 [2025-02-06 02:37:28,775 INFO L226 Difference]: Without dead ends: 976 [2025-02-06 02:37:28,778 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 02:37:28,780 INFO L435 NwaCegarLoop]: 603 mSDtfsCounter, 213 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 1085 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:37:28,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 1085 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 02:37:28,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2025-02-06 02:37:28,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 972. [2025-02-06 02:37:28,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 749 states have (on average 1.4966622162883845) internal successors, (1121), 751 states have internal predecessors, (1121), 218 states have call successors, (218), 4 states have call predecessors, (218), 4 states have return successors, (218), 216 states have call predecessors, (218), 218 states have call successors, (218) [2025-02-06 02:37:28,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1557 transitions. [2025-02-06 02:37:28,865 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1557 transitions. Word has length 611 [2025-02-06 02:37:28,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:37:28,866 INFO L471 AbstractCegarLoop]: Abstraction has 972 states and 1557 transitions. [2025-02-06 02:37:28,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2025-02-06 02:37:28,866 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1557 transitions. [2025-02-06 02:37:28,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2025-02-06 02:37:28,870 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:37:28,871 INFO L218 NwaCegarLoop]: trace histogram [92, 92, 92, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:37:28,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 02:37:28,873 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:37:28,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:37:28,873 INFO L85 PathProgramCache]: Analyzing trace with hash 142640359, now seen corresponding path program 1 times [2025-02-06 02:37:28,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:37:28,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938330806] [2025-02-06 02:37:28,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:28,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:37:28,909 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 611 statements into 1 equivalence classes. [2025-02-06 02:37:28,995 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 611 of 611 statements. [2025-02-06 02:37:28,995 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:37:28,995 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:37:29,618 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2025-02-06 02:37:29,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:37:29,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938330806] [2025-02-06 02:37:29,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938330806] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:37:29,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:37:29,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 02:37:29,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180373931] [2025-02-06 02:37:29,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:37:29,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 02:37:29,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:37:29,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 02:37:29,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 02:37:29,621 INFO L87 Difference]: Start difference. First operand 972 states and 1557 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2025-02-06 02:37:29,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:37:29,763 INFO L93 Difference]: Finished difference Result 2910 states and 4665 transitions. [2025-02-06 02:37:29,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 02:37:29,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) Word has length 611 [2025-02-06 02:37:29,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:37:29,775 INFO L225 Difference]: With dead ends: 2910 [2025-02-06 02:37:29,776 INFO L226 Difference]: Without dead ends: 1941 [2025-02-06 02:37:29,779 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 [2025-02-06 02:37:29,780 INFO L435 NwaCegarLoop]: 680 mSDtfsCounter, 367 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:37:29,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 1178 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 02:37:29,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1941 states. [2025-02-06 02:37:29,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1941 to 1939. [2025-02-06 02:37:29,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1939 states, 1494 states have (on average 1.4899598393574298) internal successors, (2226), 1498 states have internal predecessors, (2226), 436 states have call successors, (436), 8 states have call predecessors, (436), 8 states have return successors, (436), 432 states have call predecessors, (436), 436 states have call successors, (436) [2025-02-06 02:37:29,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1939 states to 1939 states and 3098 transitions. [2025-02-06 02:37:29,900 INFO L78 Accepts]: Start accepts. Automaton has 1939 states and 3098 transitions. Word has length 611 [2025-02-06 02:37:29,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:37:29,901 INFO L471 AbstractCegarLoop]: Abstraction has 1939 states and 3098 transitions. [2025-02-06 02:37:29,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2025-02-06 02:37:29,901 INFO L276 IsEmpty]: Start isEmpty. Operand 1939 states and 3098 transitions. [2025-02-06 02:37:29,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2025-02-06 02:37:29,906 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:37:29,906 INFO L218 NwaCegarLoop]: trace histogram [92, 92, 92, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:37:29,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 02:37:29,906 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:37:29,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:37:29,907 INFO L85 PathProgramCache]: Analyzing trace with hash 134639161, now seen corresponding path program 1 times [2025-02-06 02:37:29,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:37:29,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706505120] [2025-02-06 02:37:29,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:29,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:37:29,954 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 612 statements into 1 equivalence classes. [2025-02-06 02:37:30,018 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 612 of 612 statements. [2025-02-06 02:37:30,018 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:37:30,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:37:30,731 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2025-02-06 02:37:30,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:37:30,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706505120] [2025-02-06 02:37:30,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706505120] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:37:30,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:37:30,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 02:37:30,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537269951] [2025-02-06 02:37:30,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:37:30,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 02:37:30,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:37:30,734 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 02:37:30,734 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2025-02-06 02:37:30,734 INFO L87 Difference]: Start difference. First operand 1939 states and 3098 transitions. Second operand has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2025-02-06 02:37:31,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:37:31,128 INFO L93 Difference]: Finished difference Result 5327 states and 8476 transitions. [2025-02-06 02:37:31,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 02:37:31,129 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) Word has length 612 [2025-02-06 02:37:31,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:37:31,151 INFO L225 Difference]: With dead ends: 5327 [2025-02-06 02:37:31,151 INFO L226 Difference]: Without dead ends: 3391 [2025-02-06 02:37:31,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-02-06 02:37:31,159 INFO L435 NwaCegarLoop]: 625 mSDtfsCounter, 306 mSDsluCounter, 1820 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 2445 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 02:37:31,160 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 2445 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 02:37:31,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3391 states. [2025-02-06 02:37:31,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3391 to 3385. [2025-02-06 02:37:31,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3385 states, 2764 states have (on average 1.5065123010130246) internal successors, (4164), 2776 states have internal predecessors, (4164), 604 states have call successors, (604), 16 states have call predecessors, (604), 16 states have return successors, (604), 592 states have call predecessors, (604), 604 states have call successors, (604) [2025-02-06 02:37:31,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3385 states to 3385 states and 5372 transitions. [2025-02-06 02:37:31,378 INFO L78 Accepts]: Start accepts. Automaton has 3385 states and 5372 transitions. Word has length 612 [2025-02-06 02:37:31,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:37:31,379 INFO L471 AbstractCegarLoop]: Abstraction has 3385 states and 5372 transitions. [2025-02-06 02:37:31,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.833333333333332) internal successors, (155), 6 states have internal predecessors, (155), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2025-02-06 02:37:31,380 INFO L276 IsEmpty]: Start isEmpty. Operand 3385 states and 5372 transitions. [2025-02-06 02:37:31,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2025-02-06 02:37:31,386 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:37:31,386 INFO L218 NwaCegarLoop]: trace histogram [92, 92, 92, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:37:31,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 02:37:31,387 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:37:31,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:37:31,387 INFO L85 PathProgramCache]: Analyzing trace with hash -349036166, now seen corresponding path program 1 times [2025-02-06 02:37:31,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:37:31,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331272918] [2025-02-06 02:37:31,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:31,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:37:31,428 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 612 statements into 1 equivalence classes. [2025-02-06 02:37:31,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 612 of 612 statements. [2025-02-06 02:37:31,978 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:37:31,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:37:32,551 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2025-02-06 02:37:32,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:37:32,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331272918] [2025-02-06 02:37:32,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331272918] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:37:32,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:37:32,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 02:37:32,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951597391] [2025-02-06 02:37:32,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:37:32,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 02:37:32,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:37:32,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 02:37:32,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:37:32,553 INFO L87 Difference]: Start difference. First operand 3385 states and 5372 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2025-02-06 02:37:33,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:37:33,047 INFO L93 Difference]: Finished difference Result 11207 states and 17715 transitions. [2025-02-06 02:37:33,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 02:37:33,050 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) Word has length 612 [2025-02-06 02:37:33,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:37:33,087 INFO L225 Difference]: With dead ends: 11207 [2025-02-06 02:37:33,087 INFO L226 Difference]: Without dead ends: 7825 [2025-02-06 02:37:33,096 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:37:33,096 INFO L435 NwaCegarLoop]: 583 mSDtfsCounter, 587 mSDsluCounter, 937 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 1520 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 02:37:33,097 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 1520 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 02:37:33,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7825 states. [2025-02-06 02:37:33,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7825 to 4301. [2025-02-06 02:37:33,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4301 states, 3680 states have (on average 1.5326086956521738) internal successors, (5640), 3692 states have internal predecessors, (5640), 604 states have call successors, (604), 16 states have call predecessors, (604), 16 states have return successors, (604), 592 states have call predecessors, (604), 604 states have call successors, (604) [2025-02-06 02:37:33,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4301 states to 4301 states and 6848 transitions. [2025-02-06 02:37:33,325 INFO L78 Accepts]: Start accepts. Automaton has 4301 states and 6848 transitions. Word has length 612 [2025-02-06 02:37:33,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:37:33,326 INFO L471 AbstractCegarLoop]: Abstraction has 4301 states and 6848 transitions. [2025-02-06 02:37:33,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2025-02-06 02:37:33,327 INFO L276 IsEmpty]: Start isEmpty. Operand 4301 states and 6848 transitions. [2025-02-06 02:37:33,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2025-02-06 02:37:33,334 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:37:33,334 INFO L218 NwaCegarLoop]: trace histogram [92, 92, 92, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:37:33,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 02:37:33,335 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:37:33,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:37:33,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1775331813, now seen corresponding path program 1 times [2025-02-06 02:37:33,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:37:33,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289580191] [2025-02-06 02:37:33,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:33,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:37:33,375 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 612 statements into 1 equivalence classes. [2025-02-06 02:37:33,915 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 612 of 612 statements. [2025-02-06 02:37:33,915 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:37:33,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:37:34,377 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2025-02-06 02:37:34,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:37:34,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289580191] [2025-02-06 02:37:34,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289580191] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:37:34,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:37:34,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 02:37:34,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412352832] [2025-02-06 02:37:34,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:37:34,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 02:37:34,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:37:34,379 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 02:37:34,379 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:37:34,380 INFO L87 Difference]: Start difference. First operand 4301 states and 6848 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2025-02-06 02:37:35,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:37:35,244 INFO L93 Difference]: Finished difference Result 14569 states and 23100 transitions. [2025-02-06 02:37:35,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 02:37:35,248 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) Word has length 612 [2025-02-06 02:37:35,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:37:35,314 INFO L225 Difference]: With dead ends: 14569 [2025-02-06 02:37:35,314 INFO L226 Difference]: Without dead ends: 10271 [2025-02-06 02:37:35,332 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 02:37:35,333 INFO L435 NwaCegarLoop]: 592 mSDtfsCounter, 943 mSDsluCounter, 1109 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 280 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 943 SdHoareTripleChecker+Valid, 1701 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 280 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-06 02:37:35,333 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [943 Valid, 1701 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [280 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-06 02:37:35,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10271 states. [2025-02-06 02:37:35,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10271 to 6205. [2025-02-06 02:37:35,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6205 states, 5100 states have (on average 1.5098039215686274) internal successors, (7700), 5116 states have internal predecessors, (7700), 1072 states have call successors, (1072), 32 states have call predecessors, (1072), 32 states have return successors, (1072), 1056 states have call predecessors, (1072), 1072 states have call successors, (1072) [2025-02-06 02:37:35,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6205 states to 6205 states and 9844 transitions. [2025-02-06 02:37:35,810 INFO L78 Accepts]: Start accepts. Automaton has 6205 states and 9844 transitions. Word has length 612 [2025-02-06 02:37:35,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:37:35,811 INFO L471 AbstractCegarLoop]: Abstraction has 6205 states and 9844 transitions. [2025-02-06 02:37:35,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2025-02-06 02:37:35,815 INFO L276 IsEmpty]: Start isEmpty. Operand 6205 states and 9844 transitions. [2025-02-06 02:37:35,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2025-02-06 02:37:35,828 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:37:35,828 INFO L218 NwaCegarLoop]: trace histogram [92, 92, 92, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:37:35,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 02:37:35,828 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:37:35,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:37:35,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1420227163, now seen corresponding path program 1 times [2025-02-06 02:37:35,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:37:35,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569441106] [2025-02-06 02:37:35,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:35,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:37:35,869 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 612 statements into 1 equivalence classes. [2025-02-06 02:37:35,907 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 612 of 612 statements. [2025-02-06 02:37:35,908 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:37:35,908 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:37:36,134 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2025-02-06 02:37:36,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:37:36,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569441106] [2025-02-06 02:37:36,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569441106] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:37:36,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:37:36,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 02:37:36,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431525355] [2025-02-06 02:37:36,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:37:36,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 02:37:36,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:37:36,136 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 02:37:36,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:37:36,136 INFO L87 Difference]: Start difference. First operand 6205 states and 9844 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2025-02-06 02:37:36,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:37:36,652 INFO L93 Difference]: Finished difference Result 13379 states and 21147 transitions. [2025-02-06 02:37:36,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 02:37:36,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) Word has length 612 [2025-02-06 02:37:36,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:37:36,685 INFO L225 Difference]: With dead ends: 13379 [2025-02-06 02:37:36,686 INFO L226 Difference]: Without dead ends: 7177 [2025-02-06 02:37:36,701 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:37:36,701 INFO L435 NwaCegarLoop]: 600 mSDtfsCounter, 762 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 1273 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 02:37:36,702 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [762 Valid, 1273 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 02:37:36,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7177 states. [2025-02-06 02:37:36,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7177 to 5525. [2025-02-06 02:37:36,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5525 states, 4488 states have (on average 1.5066844919786095) internal successors, (6762), 4500 states have internal predecessors, (6762), 1004 states have call successors, (1004), 32 states have call predecessors, (1004), 32 states have return successors, (1004), 992 states have call predecessors, (1004), 1004 states have call successors, (1004) [2025-02-06 02:37:36,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5525 states to 5525 states and 8770 transitions. [2025-02-06 02:37:36,995 INFO L78 Accepts]: Start accepts. Automaton has 5525 states and 8770 transitions. Word has length 612 [2025-02-06 02:37:36,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:37:36,996 INFO L471 AbstractCegarLoop]: Abstraction has 5525 states and 8770 transitions. [2025-02-06 02:37:36,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2025-02-06 02:37:36,997 INFO L276 IsEmpty]: Start isEmpty. Operand 5525 states and 8770 transitions. [2025-02-06 02:37:37,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2025-02-06 02:37:37,004 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:37:37,004 INFO L218 NwaCegarLoop]: trace histogram [92, 92, 92, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:37:37,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 02:37:37,005 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:37:37,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:37:37,006 INFO L85 PathProgramCache]: Analyzing trace with hash 891308124, now seen corresponding path program 1 times [2025-02-06 02:37:37,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:37:37,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164357697] [2025-02-06 02:37:37,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:37,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:37:37,060 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 612 statements into 1 equivalence classes. [2025-02-06 02:37:37,118 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 612 of 612 statements. [2025-02-06 02:37:37,119 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:37:37,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:37:37,682 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2025-02-06 02:37:37,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:37:37,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164357697] [2025-02-06 02:37:37,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164357697] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:37:37,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:37:37,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 02:37:37,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289878535] [2025-02-06 02:37:37,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:37:37,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 02:37:37,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:37:37,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 02:37:37,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:37:37,686 INFO L87 Difference]: Start difference. First operand 5525 states and 8770 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2025-02-06 02:37:38,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:37:38,031 INFO L93 Difference]: Finished difference Result 14133 states and 22428 transitions. [2025-02-06 02:37:38,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 02:37:38,032 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) Word has length 612 [2025-02-06 02:37:38,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:37:38,061 INFO L225 Difference]: With dead ends: 14133 [2025-02-06 02:37:38,061 INFO L226 Difference]: Without dead ends: 8611 [2025-02-06 02:37:38,075 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 [2025-02-06 02:37:38,076 INFO L435 NwaCegarLoop]: 506 mSDtfsCounter, 478 mSDsluCounter, 1001 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 1507 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 [2025-02-06 02:37:38,076 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 1507 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 02:37:38,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8611 states. [2025-02-06 02:37:38,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8611 to 8573. [2025-02-06 02:37:38,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8573 states, 6984 states have (on average 1.5040091638029782) internal successors, (10504), 7004 states have internal predecessors, (10504), 1540 states have call successors, (1540), 48 states have call predecessors, (1540), 48 states have return successors, (1540), 1520 states have call predecessors, (1540), 1540 states have call successors, (1540) [2025-02-06 02:37:38,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8573 states to 8573 states and 13584 transitions. [2025-02-06 02:37:38,528 INFO L78 Accepts]: Start accepts. Automaton has 8573 states and 13584 transitions. Word has length 612 [2025-02-06 02:37:38,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:37:38,529 INFO L471 AbstractCegarLoop]: Abstraction has 8573 states and 13584 transitions. [2025-02-06 02:37:38,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2025-02-06 02:37:38,529 INFO L276 IsEmpty]: Start isEmpty. Operand 8573 states and 13584 transitions. [2025-02-06 02:37:38,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2025-02-06 02:37:38,541 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:37:38,541 INFO L218 NwaCegarLoop]: trace histogram [92, 92, 92, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:37:38,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-06 02:37:38,541 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:37:38,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:37:38,542 INFO L85 PathProgramCache]: Analyzing trace with hash -133385797, now seen corresponding path program 1 times [2025-02-06 02:37:38,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:37:38,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766341383] [2025-02-06 02:37:38,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:38,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:37:38,580 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 612 statements into 1 equivalence classes. [2025-02-06 02:37:39,193 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 612 of 612 statements. [2025-02-06 02:37:39,193 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:37:39,193 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:37:39,733 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2025-02-06 02:37:39,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:37:39,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766341383] [2025-02-06 02:37:39,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766341383] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:37:39,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:37:39,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 02:37:39,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492484671] [2025-02-06 02:37:39,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:37:39,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 02:37:39,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:37:39,735 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 02:37:39,735 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:37:39,735 INFO L87 Difference]: Start difference. First operand 8573 states and 13584 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2025-02-06 02:37:40,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:37:40,417 INFO L93 Difference]: Finished difference Result 22471 states and 35556 transitions. [2025-02-06 02:37:40,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 02:37:40,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) Word has length 612 [2025-02-06 02:37:40,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:37:40,464 INFO L225 Difference]: With dead ends: 22471 [2025-02-06 02:37:40,464 INFO L226 Difference]: Without dead ends: 13901 [2025-02-06 02:37:40,489 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 02:37:40,489 INFO L435 NwaCegarLoop]: 511 mSDtfsCounter, 460 mSDsluCounter, 1012 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 02:37:40,490 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 1523 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 02:37:40,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13901 states. [2025-02-06 02:37:41,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13901 to 13579. [2025-02-06 02:37:41,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13579 states, 11896 states have (on average 1.535053799596503) internal successors, (18261), 11916 states have internal predecessors, (18261), 1632 states have call successors, (1632), 50 states have call predecessors, (1632), 50 states have return successors, (1632), 1612 states have call predecessors, (1632), 1632 states have call successors, (1632) [2025-02-06 02:37:41,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13579 states to 13579 states and 21525 transitions. [2025-02-06 02:37:41,288 INFO L78 Accepts]: Start accepts. Automaton has 13579 states and 21525 transitions. Word has length 612 [2025-02-06 02:37:41,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:37:41,290 INFO L471 AbstractCegarLoop]: Abstraction has 13579 states and 21525 transitions. [2025-02-06 02:37:41,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2025-02-06 02:37:41,290 INFO L276 IsEmpty]: Start isEmpty. Operand 13579 states and 21525 transitions. [2025-02-06 02:37:41,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2025-02-06 02:37:41,304 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:37:41,305 INFO L218 NwaCegarLoop]: trace histogram [92, 92, 92, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:37:41,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-06 02:37:41,305 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:37:41,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:37:41,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1799699355, now seen corresponding path program 1 times [2025-02-06 02:37:41,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:37:41,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323990676] [2025-02-06 02:37:41,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:41,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:37:41,348 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 614 statements into 1 equivalence classes. [2025-02-06 02:37:41,680 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 614 of 614 statements. [2025-02-06 02:37:41,680 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:37:41,680 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:37:43,204 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2025-02-06 02:37:43,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:37:43,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323990676] [2025-02-06 02:37:43,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323990676] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:37:43,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:37:43,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-06 02:37:43,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758303196] [2025-02-06 02:37:43,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:37:43,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 02:37:43,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:37:43,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 02:37:43,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-06 02:37:43,206 INFO L87 Difference]: Start difference. First operand 13579 states and 21525 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 7 states have internal predecessors, (157), 2 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 2 states have call predecessors, (92), 2 states have call successors, (92) [2025-02-06 02:37:44,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:37:44,994 INFO L93 Difference]: Finished difference Result 38869 states and 61486 transitions. [2025-02-06 02:37:44,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-02-06 02:37:44,994 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 7 states have internal predecessors, (157), 2 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 2 states have call predecessors, (92), 2 states have call successors, (92) Word has length 614 [2025-02-06 02:37:44,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:37:45,059 INFO L225 Difference]: With dead ends: 38869 [2025-02-06 02:37:45,059 INFO L226 Difference]: Without dead ends: 26067 [2025-02-06 02:37:45,078 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2025-02-06 02:37:45,079 INFO L435 NwaCegarLoop]: 589 mSDtfsCounter, 953 mSDsluCounter, 1392 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 1981 SdHoareTripleChecker+Invalid, 1211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:37:45,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [953 Valid, 1981 Invalid, 1211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 1046 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-02-06 02:37:45,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26067 states. [2025-02-06 02:37:46,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26067 to 26053. [2025-02-06 02:37:46,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26053 states, 23381 states have (on average 1.5395406526666953) internal successors, (35996), 23433 states have internal predecessors, (35996), 2560 states have call successors, (2560), 111 states have call predecessors, (2560), 111 states have return successors, (2560), 2508 states have call predecessors, (2560), 2560 states have call successors, (2560) [2025-02-06 02:37:46,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26053 states to 26053 states and 41116 transitions. [2025-02-06 02:37:46,168 INFO L78 Accepts]: Start accepts. Automaton has 26053 states and 41116 transitions. Word has length 614 [2025-02-06 02:37:46,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:37:46,169 INFO L471 AbstractCegarLoop]: Abstraction has 26053 states and 41116 transitions. [2025-02-06 02:37:46,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 7 states have internal predecessors, (157), 2 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 2 states have call predecessors, (92), 2 states have call successors, (92) [2025-02-06 02:37:46,170 INFO L276 IsEmpty]: Start isEmpty. Operand 26053 states and 41116 transitions. [2025-02-06 02:37:46,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 615 [2025-02-06 02:37:46,192 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:37:46,193 INFO L218 NwaCegarLoop]: trace histogram [92, 92, 92, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:37:46,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-02-06 02:37:46,193 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:37:46,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:37:46,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1553386268, now seen corresponding path program 1 times [2025-02-06 02:37:46,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:37:46,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847107420] [2025-02-06 02:37:46,196 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:46,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:37:46,236 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 614 statements into 1 equivalence classes. [2025-02-06 02:37:47,656 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 614 of 614 statements. [2025-02-06 02:37:47,657 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:37:47,657 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:37:47,954 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 51 proven. 222 refuted. 0 times theorem prover too weak. 16471 trivial. 0 not checked. [2025-02-06 02:37:47,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:37:47,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847107420] [2025-02-06 02:37:47,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847107420] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:37:47,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784842280] [2025-02-06 02:37:47,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:47,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:37:47,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:37:47,962 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 02:37:47,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-06 02:37:48,132 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 614 statements into 1 equivalence classes. [2025-02-06 02:37:48,266 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 614 of 614 statements. [2025-02-06 02:37:48,266 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:37:48,266 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:37:48,276 INFO L256 TraceCheckSpWp]: Trace formula consists of 1483 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-02-06 02:37:48,285 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:37:49,741 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 10285 proven. 189 refuted. 0 times theorem prover too weak. 6270 trivial. 0 not checked. [2025-02-06 02:37:49,742 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:37:50,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784842280] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:37:50,117 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-02-06 02:37:50,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 15] total 16 [2025-02-06 02:37:50,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777307872] [2025-02-06 02:37:50,117 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2025-02-06 02:37:50,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-02-06 02:37:50,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:37:50,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-02-06 02:37:50,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=478, Unknown=0, NotChecked=0, Total=552 [2025-02-06 02:37:50,119 INFO L87 Difference]: Start difference. First operand 26053 states and 41116 transitions. Second operand has 16 states, 16 states have (on average 17.875) internal successors, (286), 16 states have internal predecessors, (286), 4 states have call successors, (166), 3 states have call predecessors, (166), 5 states have return successors, (167), 4 states have call predecessors, (167), 4 states have call successors, (167) [2025-02-06 02:37:56,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:37:56,276 INFO L93 Difference]: Finished difference Result 48805 states and 77028 transitions. [2025-02-06 02:37:56,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2025-02-06 02:37:56,277 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 17.875) internal successors, (286), 16 states have internal predecessors, (286), 4 states have call successors, (166), 3 states have call predecessors, (166), 5 states have return successors, (167), 4 states have call predecessors, (167), 4 states have call successors, (167) Word has length 614 [2025-02-06 02:37:56,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:37:56,407 INFO L225 Difference]: With dead ends: 48805 [2025-02-06 02:37:56,407 INFO L226 Difference]: Without dead ends: 24383 [2025-02-06 02:37:56,433 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 756 GetRequests, 701 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 643 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=556, Invalid=2636, Unknown=0, NotChecked=0, Total=3192 [2025-02-06 02:37:56,433 INFO L435 NwaCegarLoop]: 639 mSDtfsCounter, 2368 mSDsluCounter, 4423 mSDsCounter, 0 mSdLazyCounter, 3369 mSolverCounterSat, 357 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2369 SdHoareTripleChecker+Valid, 5062 SdHoareTripleChecker+Invalid, 3726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 357 IncrementalHoareTripleChecker+Valid, 3369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2025-02-06 02:37:56,434 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2369 Valid, 5062 Invalid, 3726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [357 Valid, 3369 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2025-02-06 02:37:56,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24383 states. [2025-02-06 02:37:57,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24383 to 18646. [2025-02-06 02:37:57,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18646 states, 16555 states have (on average 1.5136816671700393) internal successors, (25059), 16597 states have internal predecessors, (25059), 1910 states have call successors, (1910), 180 states have call predecessors, (1910), 180 states have return successors, (1910), 1868 states have call predecessors, (1910), 1910 states have call successors, (1910) [2025-02-06 02:37:57,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18646 states to 18646 states and 28879 transitions. [2025-02-06 02:37:57,592 INFO L78 Accepts]: Start accepts. Automaton has 18646 states and 28879 transitions. Word has length 614 [2025-02-06 02:37:57,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:37:57,593 INFO L471 AbstractCegarLoop]: Abstraction has 18646 states and 28879 transitions. [2025-02-06 02:37:57,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 17.875) internal successors, (286), 16 states have internal predecessors, (286), 4 states have call successors, (166), 3 states have call predecessors, (166), 5 states have return successors, (167), 4 states have call predecessors, (167), 4 states have call successors, (167) [2025-02-06 02:37:57,593 INFO L276 IsEmpty]: Start isEmpty. Operand 18646 states and 28879 transitions. [2025-02-06 02:37:57,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 616 [2025-02-06 02:37:57,603 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:37:57,604 INFO L218 NwaCegarLoop]: trace histogram [92, 92, 92, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:37:57,615 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-06 02:37:57,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:37:57,805 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:37:57,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:37:57,806 INFO L85 PathProgramCache]: Analyzing trace with hash 2068535928, now seen corresponding path program 1 times [2025-02-06 02:37:57,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:37:57,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303151041] [2025-02-06 02:37:57,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:57,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:37:57,844 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 615 statements into 1 equivalence classes. [2025-02-06 02:37:59,274 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 615 of 615 statements. [2025-02-06 02:37:59,275 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:37:59,275 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:37:59,807 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 75 proven. 198 refuted. 0 times theorem prover too weak. 16471 trivial. 0 not checked. [2025-02-06 02:37:59,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:37:59,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303151041] [2025-02-06 02:37:59,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303151041] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:37:59,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138626501] [2025-02-06 02:37:59,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:37:59,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:37:59,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:37:59,811 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 02:37:59,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-06 02:38:00,009 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 615 statements into 1 equivalence classes. [2025-02-06 02:38:00,175 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 615 of 615 statements. [2025-02-06 02:38:00,176 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:38:00,176 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:38:00,182 INFO L256 TraceCheckSpWp]: Trace formula consists of 1475 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 02:38:00,210 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:38:00,574 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 8307 proven. 117 refuted. 0 times theorem prover too weak. 8320 trivial. 0 not checked. [2025-02-06 02:38:00,574 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:38:00,949 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 156 proven. 117 refuted. 0 times theorem prover too weak. 16471 trivial. 0 not checked. [2025-02-06 02:38:00,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138626501] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 02:38:00,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 02:38:00,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 10 [2025-02-06 02:38:00,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279647847] [2025-02-06 02:38:00,950 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 02:38:00,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-02-06 02:38:00,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:38:00,955 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-02-06 02:38:00,955 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2025-02-06 02:38:00,956 INFO L87 Difference]: Start difference. First operand 18646 states and 28879 transitions. Second operand has 10 states, 10 states have (on average 23.7) internal successors, (237), 10 states have internal predecessors, (237), 3 states have call successors, (197), 2 states have call predecessors, (197), 4 states have return successors, (199), 3 states have call predecessors, (199), 3 states have call successors, (199) [2025-02-06 02:38:02,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:38:02,026 INFO L93 Difference]: Finished difference Result 28416 states and 43909 transitions. [2025-02-06 02:38:02,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-02-06 02:38:02,027 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 23.7) internal successors, (237), 10 states have internal predecessors, (237), 3 states have call successors, (197), 2 states have call predecessors, (197), 4 states have return successors, (199), 3 states have call predecessors, (199), 3 states have call successors, (199) Word has length 615 [2025-02-06 02:38:02,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:38:02,052 INFO L225 Difference]: With dead ends: 28416 [2025-02-06 02:38:02,053 INFO L226 Difference]: Without dead ends: 10395 [2025-02-06 02:38:02,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1247 GetRequests, 1227 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2025-02-06 02:38:02,069 INFO L435 NwaCegarLoop]: 391 mSDtfsCounter, 860 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 322 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 1675 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 322 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-06 02:38:02,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [861 Valid, 1675 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [322 Valid, 936 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-06 02:38:02,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10395 states. [2025-02-06 02:38:02,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10395 to 10303. [2025-02-06 02:38:02,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10303 states, 8852 states have (on average 1.494916403072752) internal successors, (13233), 8870 states have internal predecessors, (13233), 1310 states have call successors, (1310), 140 states have call predecessors, (1310), 140 states have return successors, (1310), 1292 states have call predecessors, (1310), 1310 states have call successors, (1310) [2025-02-06 02:38:02,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10303 states to 10303 states and 15853 transitions. [2025-02-06 02:38:02,738 INFO L78 Accepts]: Start accepts. Automaton has 10303 states and 15853 transitions. Word has length 615 [2025-02-06 02:38:02,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:38:02,741 INFO L471 AbstractCegarLoop]: Abstraction has 10303 states and 15853 transitions. [2025-02-06 02:38:02,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 23.7) internal successors, (237), 10 states have internal predecessors, (237), 3 states have call successors, (197), 2 states have call predecessors, (197), 4 states have return successors, (199), 3 states have call predecessors, (199), 3 states have call successors, (199) [2025-02-06 02:38:02,741 INFO L276 IsEmpty]: Start isEmpty. Operand 10303 states and 15853 transitions. [2025-02-06 02:38:02,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 616 [2025-02-06 02:38:02,747 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:38:02,748 INFO L218 NwaCegarLoop]: trace histogram [92, 92, 92, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:38:02,760 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-06 02:38:02,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:38:02,949 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:38:02,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:38:02,950 INFO L85 PathProgramCache]: Analyzing trace with hash -1399489338, now seen corresponding path program 1 times [2025-02-06 02:38:02,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:38:02,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677285169] [2025-02-06 02:38:02,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:38:02,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:38:02,978 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 615 statements into 1 equivalence classes. [2025-02-06 02:38:03,245 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 615 of 615 statements. [2025-02-06 02:38:03,245 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:38:03,245 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:38:03,892 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2025-02-06 02:38:03,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:38:03,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677285169] [2025-02-06 02:38:03,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677285169] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:38:03,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:38:03,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 02:38:03,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129549820] [2025-02-06 02:38:03,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:38:03,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 02:38:03,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:38:03,898 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 02:38:03,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:38:03,898 INFO L87 Difference]: Start difference. First operand 10303 states and 15853 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2025-02-06 02:38:04,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:38:04,361 INFO L93 Difference]: Finished difference Result 19103 states and 29210 transitions. [2025-02-06 02:38:04,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 02:38:04,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) Word has length 615 [2025-02-06 02:38:04,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:38:04,386 INFO L225 Difference]: With dead ends: 19103 [2025-02-06 02:38:04,386 INFO L226 Difference]: Without dead ends: 9631 [2025-02-06 02:38:04,396 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:38:04,397 INFO L435 NwaCegarLoop]: 492 mSDtfsCounter, 510 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 02:38:04,397 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 492 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 02:38:04,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9631 states. [2025-02-06 02:38:04,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9631 to 9631. [2025-02-06 02:38:04,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9631 states, 8180 states have (on average 1.4680929095354522) internal successors, (12009), 8198 states have internal predecessors, (12009), 1310 states have call successors, (1310), 140 states have call predecessors, (1310), 140 states have return successors, (1310), 1292 states have call predecessors, (1310), 1310 states have call successors, (1310) [2025-02-06 02:38:04,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9631 states to 9631 states and 14629 transitions. [2025-02-06 02:38:04,890 INFO L78 Accepts]: Start accepts. Automaton has 9631 states and 14629 transitions. Word has length 615 [2025-02-06 02:38:04,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:38:04,891 INFO L471 AbstractCegarLoop]: Abstraction has 9631 states and 14629 transitions. [2025-02-06 02:38:04,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2025-02-06 02:38:04,891 INFO L276 IsEmpty]: Start isEmpty. Operand 9631 states and 14629 transitions. [2025-02-06 02:38:04,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 616 [2025-02-06 02:38:04,896 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:38:04,897 INFO L218 NwaCegarLoop]: trace histogram [92, 92, 92, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:38:04,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-06 02:38:04,897 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:38:04,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:38:04,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1538092762, now seen corresponding path program 1 times [2025-02-06 02:38:04,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:38:04,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465787086] [2025-02-06 02:38:04,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:38:04,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:38:04,924 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 615 statements into 1 equivalence classes. [2025-02-06 02:38:05,642 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 615 of 615 statements. [2025-02-06 02:38:05,643 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:38:05,643 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:38:06,010 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 81 proven. 192 refuted. 0 times theorem prover too weak. 16471 trivial. 0 not checked. [2025-02-06 02:38:06,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:38:06,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465787086] [2025-02-06 02:38:06,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465787086] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:38:06,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770795008] [2025-02-06 02:38:06,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:38:06,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:38:06,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:38:06,013 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 02:38:06,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-06 02:38:06,181 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 615 statements into 1 equivalence classes. [2025-02-06 02:38:06,334 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 615 of 615 statements. [2025-02-06 02:38:06,334 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:38:06,334 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:38:06,340 INFO L256 TraceCheckSpWp]: Trace formula consists of 1472 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 02:38:06,348 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:38:06,709 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 7057 proven. 192 refuted. 0 times theorem prover too weak. 9495 trivial. 0 not checked. [2025-02-06 02:38:06,709 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:38:07,077 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 81 proven. 192 refuted. 0 times theorem prover too weak. 16471 trivial. 0 not checked. [2025-02-06 02:38:07,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770795008] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 02:38:07,078 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 02:38:07,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2025-02-06 02:38:07,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019684575] [2025-02-06 02:38:07,078 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 02:38:07,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-06 02:38:07,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:38:07,080 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-06 02:38:07,080 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-06 02:38:07,080 INFO L87 Difference]: Start difference. First operand 9631 states and 14629 transitions. Second operand has 8 states, 8 states have (on average 34.625) internal successors, (277), 8 states have internal predecessors, (277), 3 states have call successors, (220), 2 states have call predecessors, (220), 4 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2025-02-06 02:38:07,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:38:07,881 INFO L93 Difference]: Finished difference Result 17609 states and 26563 transitions. [2025-02-06 02:38:07,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-06 02:38:07,882 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 34.625) internal successors, (277), 8 states have internal predecessors, (277), 3 states have call successors, (220), 2 states have call predecessors, (220), 4 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) Word has length 615 [2025-02-06 02:38:07,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:38:07,902 INFO L225 Difference]: With dead ends: 17609 [2025-02-06 02:38:07,902 INFO L226 Difference]: Without dead ends: 9787 [2025-02-06 02:38:07,909 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1236 GetRequests, 1227 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=64, Unknown=0, NotChecked=0, Total=110 [2025-02-06 02:38:07,909 INFO L435 NwaCegarLoop]: 398 mSDtfsCounter, 244 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 02:38:07,909 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 1012 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 02:38:07,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9787 states. [2025-02-06 02:38:08,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9787 to 9695. [2025-02-06 02:38:08,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9695 states, 8219 states have (on average 1.4527314758486434) internal successors, (11940), 8237 states have internal predecessors, (11940), 1310 states have call successors, (1310), 165 states have call predecessors, (1310), 165 states have return successors, (1310), 1292 states have call predecessors, (1310), 1310 states have call successors, (1310) [2025-02-06 02:38:08,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9695 states to 9695 states and 14560 transitions. [2025-02-06 02:38:08,466 INFO L78 Accepts]: Start accepts. Automaton has 9695 states and 14560 transitions. Word has length 615 [2025-02-06 02:38:08,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:38:08,467 INFO L471 AbstractCegarLoop]: Abstraction has 9695 states and 14560 transitions. [2025-02-06 02:38:08,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 34.625) internal successors, (277), 8 states have internal predecessors, (277), 3 states have call successors, (220), 2 states have call predecessors, (220), 4 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2025-02-06 02:38:08,467 INFO L276 IsEmpty]: Start isEmpty. Operand 9695 states and 14560 transitions. [2025-02-06 02:38:08,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2025-02-06 02:38:08,475 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:38:08,476 INFO L218 NwaCegarLoop]: trace histogram [92, 92, 92, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:38:08,486 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-06 02:38:08,678 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,SelfDestructingSolverStorable16 [2025-02-06 02:38:08,679 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:38:08,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:38:08,679 INFO L85 PathProgramCache]: Analyzing trace with hash 958663960, now seen corresponding path program 1 times [2025-02-06 02:38:08,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:38:08,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257352654] [2025-02-06 02:38:08,680 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:38:08,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:38:08,746 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 616 statements into 1 equivalence classes. [2025-02-06 02:38:10,013 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 616 of 616 statements. [2025-02-06 02:38:10,014 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:38:10,014 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:38:10,363 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 162 proven. 111 refuted. 0 times theorem prover too weak. 16471 trivial. 0 not checked. [2025-02-06 02:38:10,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:38:10,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257352654] [2025-02-06 02:38:10,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257352654] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:38:10,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621719981] [2025-02-06 02:38:10,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:38:10,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:38:10,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:38:10,366 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 02:38:10,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-06 02:38:10,584 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 616 statements into 1 equivalence classes. [2025-02-06 02:38:10,725 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 616 of 616 statements. [2025-02-06 02:38:10,725 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:38:10,725 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:38:10,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 1473 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-06 02:38:10,740 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:38:11,022 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 8191 proven. 111 refuted. 0 times theorem prover too weak. 8442 trivial. 0 not checked. [2025-02-06 02:38:11,022 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:38:11,342 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 162 proven. 111 refuted. 0 times theorem prover too weak. 16471 trivial. 0 not checked. [2025-02-06 02:38:11,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621719981] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 02:38:11,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 02:38:11,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2025-02-06 02:38:11,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95074150] [2025-02-06 02:38:11,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 02:38:11,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-06 02:38:11,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:38:11,344 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-06 02:38:11,344 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-02-06 02:38:11,345 INFO L87 Difference]: Start difference. First operand 9695 states and 14560 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 2 states have call successors, (129), 2 states have call predecessors, (129), 4 states have return successors, (130), 2 states have call predecessors, (130), 2 states have call successors, (130) [2025-02-06 02:38:12,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:38:12,240 INFO L93 Difference]: Finished difference Result 19313 states and 28932 transitions. [2025-02-06 02:38:12,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 02:38:12,245 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 2 states have call successors, (129), 2 states have call predecessors, (129), 4 states have return successors, (130), 2 states have call predecessors, (130), 2 states have call successors, (130) Word has length 616 [2025-02-06 02:38:12,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:38:12,289 INFO L225 Difference]: With dead ends: 19313 [2025-02-06 02:38:12,289 INFO L226 Difference]: Without dead ends: 9829 [2025-02-06 02:38:12,300 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1239 GetRequests, 1229 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2025-02-06 02:38:12,300 INFO L435 NwaCegarLoop]: 400 mSDtfsCounter, 652 mSDsluCounter, 616 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 705 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-06 02:38:12,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [705 Valid, 1016 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-06 02:38:12,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9829 states. [2025-02-06 02:38:12,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9829 to 9723. [2025-02-06 02:38:12,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9723 states, 8240 states have (on average 1.4439320388349515) internal successors, (11898), 8258 states have internal predecessors, (11898), 1310 states have call successors, (1310), 172 states have call predecessors, (1310), 172 states have return successors, (1310), 1292 states have call predecessors, (1310), 1310 states have call successors, (1310) [2025-02-06 02:38:13,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9723 states to 9723 states and 14518 transitions. [2025-02-06 02:38:13,011 INFO L78 Accepts]: Start accepts. Automaton has 9723 states and 14518 transitions. Word has length 616 [2025-02-06 02:38:13,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:38:13,012 INFO L471 AbstractCegarLoop]: Abstraction has 9723 states and 14518 transitions. [2025-02-06 02:38:13,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 2 states have call successors, (129), 2 states have call predecessors, (129), 4 states have return successors, (130), 2 states have call predecessors, (130), 2 states have call successors, (130) [2025-02-06 02:38:13,012 INFO L276 IsEmpty]: Start isEmpty. Operand 9723 states and 14518 transitions. [2025-02-06 02:38:13,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2025-02-06 02:38:13,021 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:38:13,022 INFO L218 NwaCegarLoop]: trace histogram [92, 92, 92, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:38:13,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-06 02:38:13,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-02-06 02:38:13,223 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:38:13,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:38:13,224 INFO L85 PathProgramCache]: Analyzing trace with hash -1581538888, now seen corresponding path program 1 times [2025-02-06 02:38:13,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:38:13,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577878444] [2025-02-06 02:38:13,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:38:13,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:38:13,264 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 616 statements into 1 equivalence classes. [2025-02-06 02:38:13,485 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 616 of 616 statements. [2025-02-06 02:38:13,485 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:38:13,486 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:38:13,916 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2025-02-06 02:38:13,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:38:13,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577878444] [2025-02-06 02:38:13,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577878444] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:38:13,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:38:13,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 02:38:13,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807343385] [2025-02-06 02:38:13,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:38:13,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 02:38:13,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:38:13,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 02:38:13,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 02:38:13,918 INFO L87 Difference]: Start difference. First operand 9723 states and 14518 transitions. Second operand has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2025-02-06 02:38:15,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:38:15,412 INFO L93 Difference]: Finished difference Result 26849 states and 39870 transitions. [2025-02-06 02:38:15,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 02:38:15,413 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) Word has length 616 [2025-02-06 02:38:15,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:38:15,452 INFO L225 Difference]: With dead ends: 26849 [2025-02-06 02:38:15,453 INFO L226 Difference]: Without dead ends: 17785 [2025-02-06 02:38:15,474 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-06 02:38:15,475 INFO L435 NwaCegarLoop]: 490 mSDtfsCounter, 1389 mSDsluCounter, 1304 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1389 SdHoareTripleChecker+Valid, 1794 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-06 02:38:15,475 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1389 Valid, 1794 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [327 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-06 02:38:15,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17785 states. [2025-02-06 02:38:15,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17785 to 8248. [2025-02-06 02:38:15,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8248 states, 7272 states have (on average 1.4646589658965896) internal successors, (10651), 7278 states have internal predecessors, (10651), 854 states have call successors, (854), 121 states have call predecessors, (854), 121 states have return successors, (854), 848 states have call predecessors, (854), 854 states have call successors, (854) [2025-02-06 02:38:15,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8248 states to 8248 states and 12359 transitions. [2025-02-06 02:38:15,987 INFO L78 Accepts]: Start accepts. Automaton has 8248 states and 12359 transitions. Word has length 616 [2025-02-06 02:38:15,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:38:15,988 INFO L471 AbstractCegarLoop]: Abstraction has 8248 states and 12359 transitions. [2025-02-06 02:38:15,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 6 states have internal predecessors, (159), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2025-02-06 02:38:15,988 INFO L276 IsEmpty]: Start isEmpty. Operand 8248 states and 12359 transitions. [2025-02-06 02:38:15,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 617 [2025-02-06 02:38:15,993 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:38:15,994 INFO L218 NwaCegarLoop]: trace histogram [92, 92, 92, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:38:15,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2025-02-06 02:38:15,994 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:38:15,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:38:15,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1561201513, now seen corresponding path program 1 times [2025-02-06 02:38:15,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:38:15,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696490840] [2025-02-06 02:38:15,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:38:15,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:38:16,018 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 616 statements into 1 equivalence classes. [2025-02-06 02:38:16,903 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 616 of 616 statements. [2025-02-06 02:38:16,904 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:38:16,904 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:38:17,234 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 198 proven. 75 refuted. 0 times theorem prover too weak. 16471 trivial. 0 not checked. [2025-02-06 02:38:17,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:38:17,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696490840] [2025-02-06 02:38:17,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696490840] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:38:17,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400140605] [2025-02-06 02:38:17,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:38:17,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:38:17,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:38:17,237 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 02:38:17,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-06 02:38:17,469 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 616 statements into 1 equivalence classes. [2025-02-06 02:38:17,651 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 616 of 616 statements. [2025-02-06 02:38:17,651 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:38:17,651 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:38:17,659 INFO L256 TraceCheckSpWp]: Trace formula consists of 1476 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-06 02:38:17,668 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:38:17,868 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 6823 proven. 75 refuted. 0 times theorem prover too weak. 9846 trivial. 0 not checked. [2025-02-06 02:38:17,868 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-06 02:38:18,153 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 198 proven. 75 refuted. 0 times theorem prover too weak. 16471 trivial. 0 not checked. [2025-02-06 02:38:18,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400140605] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-06 02:38:18,154 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-06 02:38:18,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2025-02-06 02:38:18,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340572763] [2025-02-06 02:38:18,154 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-06 02:38:18,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2025-02-06 02:38:18,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:38:18,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2025-02-06 02:38:18,158 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2025-02-06 02:38:18,158 INFO L87 Difference]: Start difference. First operand 8248 states and 12359 transitions. Second operand has 11 states, 11 states have (on average 17.0) internal successors, (187), 11 states have internal predecessors, (187), 3 states have call successors, (142), 2 states have call predecessors, (142), 4 states have return successors, (143), 3 states have call predecessors, (143), 3 states have call successors, (143) [2025-02-06 02:38:19,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:38:19,301 INFO L93 Difference]: Finished difference Result 14491 states and 21595 transitions. [2025-02-06 02:38:19,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-06 02:38:19,301 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 17.0) internal successors, (187), 11 states have internal predecessors, (187), 3 states have call successors, (142), 2 states have call predecessors, (142), 4 states have return successors, (143), 3 states have call predecessors, (143), 3 states have call successors, (143) Word has length 616 [2025-02-06 02:38:19,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:38:19,344 INFO L225 Difference]: With dead ends: 14491 [2025-02-06 02:38:19,347 INFO L226 Difference]: Without dead ends: 7722 [2025-02-06 02:38:19,363 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1239 GetRequests, 1227 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2025-02-06 02:38:19,365 INFO L435 NwaCegarLoop]: 392 mSDtfsCounter, 991 mSDsluCounter, 1481 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 1873 SdHoareTripleChecker+Invalid, 1458 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-06 02:38:19,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1057 Valid, 1873 Invalid, 1458 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 1184 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-06 02:38:19,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7722 states. [2025-02-06 02:38:19,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7722 to 7640. [2025-02-06 02:38:19,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7640 states, 6657 states have (on average 1.4539582394471984) internal successors, (9679), 6663 states have internal predecessors, (9679), 854 states have call successors, (854), 128 states have call predecessors, (854), 128 states have return successors, (854), 848 states have call predecessors, (854), 854 states have call successors, (854) [2025-02-06 02:38:19,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7640 states to 7640 states and 11387 transitions. [2025-02-06 02:38:19,776 INFO L78 Accepts]: Start accepts. Automaton has 7640 states and 11387 transitions. Word has length 616 [2025-02-06 02:38:19,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:38:19,777 INFO L471 AbstractCegarLoop]: Abstraction has 7640 states and 11387 transitions. [2025-02-06 02:38:19,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 17.0) internal successors, (187), 11 states have internal predecessors, (187), 3 states have call successors, (142), 2 states have call predecessors, (142), 4 states have return successors, (143), 3 states have call predecessors, (143), 3 states have call successors, (143) [2025-02-06 02:38:19,777 INFO L276 IsEmpty]: Start isEmpty. Operand 7640 states and 11387 transitions. [2025-02-06 02:38:19,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 618 [2025-02-06 02:38:19,781 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:38:19,781 INFO L218 NwaCegarLoop]: trace histogram [92, 92, 92, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:38:19,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-02-06 02:38:19,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:38:19,982 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:38:19,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:38:19,983 INFO L85 PathProgramCache]: Analyzing trace with hash -520468701, now seen corresponding path program 1 times [2025-02-06 02:38:19,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:38:19,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052022228] [2025-02-06 02:38:19,983 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:38:19,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:38:20,037 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 617 statements into 1 equivalence classes. [2025-02-06 02:38:20,896 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 617 of 617 statements. [2025-02-06 02:38:20,897 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:38:20,897 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:38:27,256 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 471 proven. 330 refuted. 0 times theorem prover too weak. 15943 trivial. 0 not checked. [2025-02-06 02:38:27,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:38:27,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052022228] [2025-02-06 02:38:27,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052022228] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:38:27,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441047732] [2025-02-06 02:38:27,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:38:27,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:38:27,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:38:27,258 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 02:38:27,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-06 02:38:27,449 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 617 statements into 1 equivalence classes. [2025-02-06 02:38:27,578 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 617 of 617 statements. [2025-02-06 02:38:27,579 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:38:27,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:38:27,586 INFO L256 TraceCheckSpWp]: Trace formula consists of 1479 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-06 02:38:27,596 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:38:27,736 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16744 trivial. 0 not checked. [2025-02-06 02:38:27,737 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 02:38:27,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441047732] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:38:27,737 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 02:38:27,737 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [14] total 15 [2025-02-06 02:38:27,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807198380] [2025-02-06 02:38:27,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:38:27,738 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 02:38:27,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:38:27,738 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 02:38:27,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2025-02-06 02:38:27,739 INFO L87 Difference]: Start difference. First operand 7640 states and 11387 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2025-02-06 02:38:28,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:38:28,277 INFO L93 Difference]: Finished difference Result 13986 states and 20824 transitions. [2025-02-06 02:38:28,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 02:38:28,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) Word has length 617 [2025-02-06 02:38:28,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:38:28,302 INFO L225 Difference]: With dead ends: 13986 [2025-02-06 02:38:28,302 INFO L226 Difference]: Without dead ends: 8531 [2025-02-06 02:38:28,312 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 639 GetRequests, 625 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2025-02-06 02:38:28,313 INFO L435 NwaCegarLoop]: 564 mSDtfsCounter, 285 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-06 02:38:28,313 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 1032 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-06 02:38:28,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8531 states. [2025-02-06 02:38:28,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8531 to 7737. [2025-02-06 02:38:28,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7737 states, 6987 states have (on average 1.473736940031487) internal successors, (10297), 6987 states have internal predecessors, (10297), 644 states have call successors, (644), 105 states have call predecessors, (644), 105 states have return successors, (644), 644 states have call predecessors, (644), 644 states have call successors, (644) [2025-02-06 02:38:28,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7737 states to 7737 states and 11585 transitions. [2025-02-06 02:38:28,701 INFO L78 Accepts]: Start accepts. Automaton has 7737 states and 11585 transitions. Word has length 617 [2025-02-06 02:38:28,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:38:28,702 INFO L471 AbstractCegarLoop]: Abstraction has 7737 states and 11585 transitions. [2025-02-06 02:38:28,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 1 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 1 states have call predecessors, (92), 1 states have call successors, (92) [2025-02-06 02:38:28,702 INFO L276 IsEmpty]: Start isEmpty. Operand 7737 states and 11585 transitions. [2025-02-06 02:38:28,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 618 [2025-02-06 02:38:28,706 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:38:28,707 INFO L218 NwaCegarLoop]: trace histogram [92, 92, 92, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:38:28,716 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-06 02:38:28,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:38:28,908 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:38:28,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:38:28,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1034195864, now seen corresponding path program 1 times [2025-02-06 02:38:28,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:38:28,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409921603] [2025-02-06 02:38:28,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:38:28,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:38:28,931 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 617 statements into 1 equivalence classes. [2025-02-06 02:38:30,169 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 617 of 617 statements. [2025-02-06 02:38:30,169 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:38:30,169 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:38:30,876 INFO L134 CoverageAnalysis]: Checked inductivity of 16744 backedges. 288 proven. 252 refuted. 0 times theorem prover too weak. 16204 trivial. 0 not checked. [2025-02-06 02:38:30,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:38:30,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409921603] [2025-02-06 02:38:30,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409921603] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:38:30,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848583468] [2025-02-06 02:38:30,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:38:30,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:38:30,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:38:30,880 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 02:38:30,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-06 02:38:31,090 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 617 statements into 1 equivalence classes. [2025-02-06 02:38:31,328 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 617 of 617 statements. [2025-02-06 02:38:31,328 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:38:31,328 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:38:31,340 INFO L256 TraceCheckSpWp]: Trace formula consists of 1478 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-02-06 02:38:31,347 INFO L279 TraceCheckSpWp]: Computing forward predicates...