./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-87.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-87.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 6257c3f163e6ff273e80adb62a710763b7566e9519a02e63ef5b17a79923aac8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 21:40:42,411 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 21:40:42,457 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 21:40:42,461 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 21:40:42,461 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 21:40:42,475 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 21:40:42,475 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 21:40:42,475 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 21:40:42,476 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 21:40:42,476 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 21:40:42,476 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 21:40:42,476 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 21:40:42,476 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 21:40:42,476 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 21:40:42,476 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 21:40:42,477 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 21:40:42,477 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 21:40:42,477 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 21:40:42,477 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 21:40:42,477 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 21:40:42,477 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 21:40:42,477 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 21:40:42,477 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 21:40:42,477 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 21:40:42,477 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 21:40:42,477 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 21:40:42,478 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 21:40:42,478 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 21:40:42,478 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 21:40:42,478 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 21:40:42,478 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 21:40:42,478 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 21:40:42,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 21:40:42,478 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 21:40:42,478 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 21:40:42,478 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 21:40:42,478 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 21:40:42,479 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 21:40:42,479 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 21:40:42,479 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 21:40:42,479 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 21:40:42,479 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 21:40:42,479 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 21:40:42,479 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 -> 6257c3f163e6ff273e80adb62a710763b7566e9519a02e63ef5b17a79923aac8 [2025-02-05 21:40:42,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 21:40:42,707 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 21:40:42,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 21:40:42,709 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 21:40:42,709 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 21:40:42,711 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-87.i [2025-02-05 21:40:43,862 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7b0b60ffc/6d219d86993b4b40abdfdfe9a066aa5a/FLAG179db193f [2025-02-05 21:40:44,196 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 21:40:44,196 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-87.i [2025-02-05 21:40:44,209 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7b0b60ffc/6d219d86993b4b40abdfdfe9a066aa5a/FLAG179db193f [2025-02-05 21:40:44,445 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7b0b60ffc/6d219d86993b4b40abdfdfe9a066aa5a [2025-02-05 21:40:44,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 21:40:44,448 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 21:40:44,450 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 21:40:44,450 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 21:40:44,453 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 21:40:44,453 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 09:40:44" (1/1) ... [2025-02-05 21:40:44,454 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bc95332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:40:44, skipping insertion in model container [2025-02-05 21:40:44,454 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 09:40:44" (1/1) ... [2025-02-05 21:40:44,474 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 21:40:44,571 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-87.i[916,929] [2025-02-05 21:40:44,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 21:40:44,681 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 21:40:44,690 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-87.i[916,929] [2025-02-05 21:40:44,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 21:40:44,752 INFO L204 MainTranslator]: Completed translation [2025-02-05 21:40:44,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:40:44 WrapperNode [2025-02-05 21:40:44,752 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 21:40:44,753 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 21:40:44,753 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 21:40:44,753 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 21:40:44,757 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:40:44" (1/1) ... [2025-02-05 21:40:44,768 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:40:44" (1/1) ... [2025-02-05 21:40:44,805 INFO L138 Inliner]: procedures = 26, calls = 107, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 599 [2025-02-05 21:40:44,805 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 21:40:44,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 21:40:44,806 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 21:40:44,806 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 21:40:44,812 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:40:44" (1/1) ... [2025-02-05 21:40:44,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:40:44" (1/1) ... [2025-02-05 21:40:44,817 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:40:44" (1/1) ... [2025-02-05 21:40:44,844 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-05 21:40:44,845 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:40:44" (1/1) ... [2025-02-05 21:40:44,845 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:40:44" (1/1) ... [2025-02-05 21:40:44,862 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:40:44" (1/1) ... [2025-02-05 21:40:44,865 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:40:44" (1/1) ... [2025-02-05 21:40:44,868 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:40:44" (1/1) ... [2025-02-05 21:40:44,870 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:40:44" (1/1) ... [2025-02-05 21:40:44,878 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 21:40:44,878 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 21:40:44,878 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 21:40:44,878 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 21:40:44,879 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:40:44" (1/1) ... [2025-02-05 21:40:44,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 21:40:44,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 21:40:44,905 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-05 21:40:44,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-05 21:40:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 21:40:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-05 21:40:44,925 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-05 21:40:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 21:40:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 21:40:44,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 21:40:45,012 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 21:40:45,014 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 21:40:45,707 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2025-02-05 21:40:45,708 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 21:40:45,736 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 21:40:45,739 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 21:40:45,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 09:40:45 BoogieIcfgContainer [2025-02-05 21:40:45,740 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 21:40:45,741 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 21:40:45,742 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 21:40:45,745 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 21:40:45,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 09:40:44" (1/3) ... [2025-02-05 21:40:45,745 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5418b799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 09:40:45, skipping insertion in model container [2025-02-05 21:40:45,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 09:40:44" (2/3) ... [2025-02-05 21:40:45,745 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5418b799 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 09:40:45, skipping insertion in model container [2025-02-05 21:40:45,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 09:40:45" (3/3) ... [2025-02-05 21:40:45,746 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-87.i [2025-02-05 21:40:45,756 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 21:40:45,759 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-87.i that has 2 procedures, 256 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-05 21:40:45,813 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 21:40:45,820 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;@1aad597b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 21:40:45,821 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 21:40:45,824 INFO L276 IsEmpty]: Start isEmpty. Operand has 256 states, 159 states have (on average 1.5031446540880504) internal successors, (239), 160 states have internal predecessors, (239), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2025-02-05 21:40:45,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 578 [2025-02-05 21:40:45,840 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:40:45,841 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:40:45,841 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:40:45,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:40:45,845 INFO L85 PathProgramCache]: Analyzing trace with hash 893154587, now seen corresponding path program 1 times [2025-02-05 21:40:45,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:40:45,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836505322] [2025-02-05 21:40:45,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:40:45,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:40:45,980 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 577 statements into 1 equivalence classes. [2025-02-05 21:40:46,021 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 577 of 577 statements. [2025-02-05 21:40:46,023 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:40:46,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:40:46,337 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 186 refuted. 0 times theorem prover too weak. 17298 trivial. 0 not checked. [2025-02-05 21:40:46,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:40:46,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836505322] [2025-02-05 21:40:46,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836505322] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 21:40:46,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376391504] [2025-02-05 21:40:46,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:40:46,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 21:40:46,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 21:40:46,341 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 21:40:46,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-05 21:40:46,483 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 577 statements into 1 equivalence classes. [2025-02-05 21:40:46,624 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 577 of 577 statements. [2025-02-05 21:40:46,624 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:40:46,624 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:40:46,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 1253 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-05 21:40:46,650 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 21:40:46,708 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 17298 trivial. 0 not checked. [2025-02-05 21:40:46,711 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 21:40:46,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376391504] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 21:40:46,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 21:40:46,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-05 21:40:46,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765738647] [2025-02-05 21:40:46,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 21:40:46,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-05 21:40:46,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:40:46,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-05 21:40:46,737 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 21:40:46,740 INFO L87 Difference]: Start difference. First operand has 256 states, 159 states have (on average 1.5031446540880504) internal successors, (239), 160 states have internal predecessors, (239), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) Second operand has 2 states, 2 states have (on average 56.0) internal successors, (112), 2 states have internal predecessors, (112), 2 states have call successors, (94), 2 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 2 states have call successors, (94) [2025-02-05 21:40:46,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 21:40:46,795 INFO L93 Difference]: Finished difference Result 506 states and 943 transitions. [2025-02-05 21:40:46,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-05 21:40:46,798 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 56.0) internal successors, (112), 2 states have internal predecessors, (112), 2 states have call successors, (94), 2 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 2 states have call successors, (94) Word has length 577 [2025-02-05 21:40:46,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 21:40:46,807 INFO L225 Difference]: With dead ends: 506 [2025-02-05 21:40:46,808 INFO L226 Difference]: Without dead ends: 253 [2025-02-05 21:40:46,815 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 578 GetRequests, 578 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 21:40:46,817 INFO L435 NwaCegarLoop]: 412 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 21:40:46,817 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 412 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 21:40:46,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2025-02-05 21:40:46,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2025-02-05 21:40:46,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 157 states have (on average 1.4777070063694266) internal successors, (232), 157 states have internal predecessors, (232), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2025-02-05 21:40:46,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 420 transitions. [2025-02-05 21:40:46,887 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 420 transitions. Word has length 577 [2025-02-05 21:40:46,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 21:40:46,888 INFO L471 AbstractCegarLoop]: Abstraction has 253 states and 420 transitions. [2025-02-05 21:40:46,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 56.0) internal successors, (112), 2 states have internal predecessors, (112), 2 states have call successors, (94), 2 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 2 states have call successors, (94) [2025-02-05 21:40:46,888 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 420 transitions. [2025-02-05 21:40:46,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 579 [2025-02-05 21:40:46,897 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:40:46,897 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:40:46,906 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-05 21:40:47,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-05 21:40:47,103 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:40:47,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:40:47,104 INFO L85 PathProgramCache]: Analyzing trace with hash -379263070, now seen corresponding path program 1 times [2025-02-05 21:40:47,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:40:47,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497772865] [2025-02-05 21:40:47,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:40:47,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:40:47,147 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 578 statements into 1 equivalence classes. [2025-02-05 21:40:47,216 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 578 of 578 statements. [2025-02-05 21:40:47,221 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:40:47,221 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:40:47,669 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2025-02-05 21:40:47,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:40:47,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497772865] [2025-02-05 21:40:47,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497772865] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 21:40:47,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 21:40:47,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 21:40:47,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066152656] [2025-02-05 21:40:47,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 21:40:47,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 21:40:47,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:40:47,675 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 21:40:47,676 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 21:40:47,677 INFO L87 Difference]: Start difference. First operand 253 states and 420 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 21:40:47,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 21:40:47,772 INFO L93 Difference]: Finished difference Result 667 states and 1114 transitions. [2025-02-05 21:40:47,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 21:40:47,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 578 [2025-02-05 21:40:47,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 21:40:47,780 INFO L225 Difference]: With dead ends: 667 [2025-02-05 21:40:47,780 INFO L226 Difference]: Without dead ends: 417 [2025-02-05 21:40:47,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 21:40:47,782 INFO L435 NwaCegarLoop]: 518 mSDtfsCounter, 265 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 21:40:47,783 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 913 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 21:40:47,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2025-02-05 21:40:47,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 414. [2025-02-05 21:40:47,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 275 states have (on average 1.5345454545454544) internal successors, (422), 276 states have internal predecessors, (422), 136 states have call successors, (136), 2 states have call predecessors, (136), 2 states have return successors, (136), 135 states have call predecessors, (136), 136 states have call successors, (136) [2025-02-05 21:40:47,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 694 transitions. [2025-02-05 21:40:47,838 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 694 transitions. Word has length 578 [2025-02-05 21:40:47,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 21:40:47,839 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 694 transitions. [2025-02-05 21:40:47,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 21:40:47,839 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 694 transitions. [2025-02-05 21:40:47,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 580 [2025-02-05 21:40:47,845 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:40:47,845 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:40:47,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-05 21:40:47,846 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:40:47,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:40:47,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1235912810, now seen corresponding path program 1 times [2025-02-05 21:40:47,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:40:47,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073688638] [2025-02-05 21:40:47,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:40:47,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:40:47,898 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 579 statements into 1 equivalence classes. [2025-02-05 21:40:47,941 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 579 of 579 statements. [2025-02-05 21:40:47,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:40:47,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:40:48,114 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2025-02-05 21:40:48,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:40:48,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073688638] [2025-02-05 21:40:48,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073688638] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 21:40:48,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 21:40:48,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 21:40:48,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561246720] [2025-02-05 21:40:48,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 21:40:48,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 21:40:48,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:40:48,117 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 21:40:48,117 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 21:40:48,118 INFO L87 Difference]: Start difference. First operand 414 states and 694 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 21:40:48,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 21:40:48,196 INFO L93 Difference]: Finished difference Result 1113 states and 1867 transitions. [2025-02-05 21:40:48,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 21:40:48,197 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 579 [2025-02-05 21:40:48,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 21:40:48,203 INFO L225 Difference]: With dead ends: 1113 [2025-02-05 21:40:48,203 INFO L226 Difference]: Without dead ends: 702 [2025-02-05 21:40:48,205 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 21:40:48,205 INFO L435 NwaCegarLoop]: 520 mSDtfsCounter, 253 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 21:40:48,206 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 914 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 21:40:48,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2025-02-05 21:40:48,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 699. [2025-02-05 21:40:48,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 699 states, 467 states have (on average 1.5331905781584583) internal successors, (716), 470 states have internal predecessors, (716), 227 states have call successors, (227), 4 states have call predecessors, (227), 4 states have return successors, (227), 224 states have call predecessors, (227), 227 states have call successors, (227) [2025-02-05 21:40:48,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 699 states to 699 states and 1170 transitions. [2025-02-05 21:40:48,268 INFO L78 Accepts]: Start accepts. Automaton has 699 states and 1170 transitions. Word has length 579 [2025-02-05 21:40:48,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 21:40:48,269 INFO L471 AbstractCegarLoop]: Abstraction has 699 states and 1170 transitions. [2025-02-05 21:40:48,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 21:40:48,269 INFO L276 IsEmpty]: Start isEmpty. Operand 699 states and 1170 transitions. [2025-02-05 21:40:48,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 580 [2025-02-05 21:40:48,272 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:40:48,273 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:40:48,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-05 21:40:48,273 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:40:48,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:40:48,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1204893003, now seen corresponding path program 1 times [2025-02-05 21:40:48,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:40:48,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510669124] [2025-02-05 21:40:48,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:40:48,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:40:48,299 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 579 statements into 1 equivalence classes. [2025-02-05 21:40:48,334 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 579 of 579 statements. [2025-02-05 21:40:48,335 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:40:48,335 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:40:48,495 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2025-02-05 21:40:48,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:40:48,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510669124] [2025-02-05 21:40:48,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510669124] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 21:40:48,495 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 21:40:48,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 21:40:48,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353458253] [2025-02-05 21:40:48,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 21:40:48,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 21:40:48,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:40:48,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 21:40:48,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 21:40:48,497 INFO L87 Difference]: Start difference. First operand 699 states and 1170 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 21:40:48,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 21:40:48,595 INFO L93 Difference]: Finished difference Result 1983 states and 3322 transitions. [2025-02-05 21:40:48,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 21:40:48,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 579 [2025-02-05 21:40:48,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 21:40:48,606 INFO L225 Difference]: With dead ends: 1983 [2025-02-05 21:40:48,606 INFO L226 Difference]: Without dead ends: 1287 [2025-02-05 21:40:48,609 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 21:40:48,609 INFO L435 NwaCegarLoop]: 633 mSDtfsCounter, 261 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 21:40:48,609 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 1032 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 21:40:48,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2025-02-05 21:40:48,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1284. [2025-02-05 21:40:48,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1284 states, 860 states have (on average 1.533720930232558) internal successors, (1319), 867 states have internal predecessors, (1319), 415 states have call successors, (415), 8 states have call predecessors, (415), 8 states have return successors, (415), 408 states have call predecessors, (415), 415 states have call successors, (415) [2025-02-05 21:40:48,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1284 states to 1284 states and 2149 transitions. [2025-02-05 21:40:48,718 INFO L78 Accepts]: Start accepts. Automaton has 1284 states and 2149 transitions. Word has length 579 [2025-02-05 21:40:48,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 21:40:48,719 INFO L471 AbstractCegarLoop]: Abstraction has 1284 states and 2149 transitions. [2025-02-05 21:40:48,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 21:40:48,719 INFO L276 IsEmpty]: Start isEmpty. Operand 1284 states and 2149 transitions. [2025-02-05 21:40:48,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 580 [2025-02-05 21:40:48,724 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:40:48,724 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:40:48,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-05 21:40:48,725 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:40:48,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:40:48,725 INFO L85 PathProgramCache]: Analyzing trace with hash 745407252, now seen corresponding path program 1 times [2025-02-05 21:40:48,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:40:48,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292243027] [2025-02-05 21:40:48,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:40:48,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:40:48,755 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 579 statements into 1 equivalence classes. [2025-02-05 21:40:48,801 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 579 of 579 statements. [2025-02-05 21:40:48,801 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:40:48,801 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:40:49,368 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2025-02-05 21:40:49,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:40:49,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292243027] [2025-02-05 21:40:49,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292243027] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 21:40:49,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 21:40:49,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-05 21:40:49,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472305688] [2025-02-05 21:40:49,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 21:40:49,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 21:40:49,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:40:49,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 21:40:49,371 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-02-05 21:40:49,371 INFO L87 Difference]: Start difference. First operand 1284 states and 2149 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 21:40:50,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 21:40:50,143 INFO L93 Difference]: Finished difference Result 4278 states and 7089 transitions. [2025-02-05 21:40:50,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-05 21:40:50,143 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 579 [2025-02-05 21:40:50,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 21:40:50,160 INFO L225 Difference]: With dead ends: 4278 [2025-02-05 21:40:50,160 INFO L226 Difference]: Without dead ends: 2997 [2025-02-05 21:40:50,165 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2025-02-05 21:40:50,166 INFO L435 NwaCegarLoop]: 668 mSDtfsCounter, 942 mSDsluCounter, 1610 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 333 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 942 SdHoareTripleChecker+Valid, 2278 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 333 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-05 21:40:50,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [942 Valid, 2278 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [333 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-05 21:40:50,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2997 states. [2025-02-05 21:40:50,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2997 to 2563. [2025-02-05 21:40:50,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2563 states, 1787 states have (on average 1.5540011191941803) internal successors, (2777), 1802 states have internal predecessors, (2777), 751 states have call successors, (751), 24 states have call predecessors, (751), 24 states have return successors, (751), 736 states have call predecessors, (751), 751 states have call successors, (751) [2025-02-05 21:40:50,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2563 states to 2563 states and 4279 transitions. [2025-02-05 21:40:50,348 INFO L78 Accepts]: Start accepts. Automaton has 2563 states and 4279 transitions. Word has length 579 [2025-02-05 21:40:50,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 21:40:50,349 INFO L471 AbstractCegarLoop]: Abstraction has 2563 states and 4279 transitions. [2025-02-05 21:40:50,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 21:40:50,350 INFO L276 IsEmpty]: Start isEmpty. Operand 2563 states and 4279 transitions. [2025-02-05 21:40:50,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 580 [2025-02-05 21:40:50,354 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:40:50,354 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:40:50,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-05 21:40:50,355 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:40:50,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:40:50,355 INFO L85 PathProgramCache]: Analyzing trace with hash 71513268, now seen corresponding path program 1 times [2025-02-05 21:40:50,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:40:50,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579921981] [2025-02-05 21:40:50,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:40:50,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:40:50,379 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 579 statements into 1 equivalence classes. [2025-02-05 21:40:50,404 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 579 of 579 statements. [2025-02-05 21:40:50,405 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:40:50,405 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:40:50,840 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2025-02-05 21:40:50,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:40:50,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579921981] [2025-02-05 21:40:50,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579921981] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 21:40:50,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 21:40:50,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-05 21:40:50,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616413422] [2025-02-05 21:40:50,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 21:40:50,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 21:40:50,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:40:50,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 21:40:50,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2025-02-05 21:40:50,843 INFO L87 Difference]: Start difference. First operand 2563 states and 4279 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 21:40:52,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 21:40:52,107 INFO L93 Difference]: Finished difference Result 7559 states and 12595 transitions. [2025-02-05 21:40:52,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-02-05 21:40:52,108 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 579 [2025-02-05 21:40:52,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 21:40:52,140 INFO L225 Difference]: With dead ends: 7559 [2025-02-05 21:40:52,140 INFO L226 Difference]: Without dead ends: 4999 [2025-02-05 21:40:52,152 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2025-02-05 21:40:52,152 INFO L435 NwaCegarLoop]: 623 mSDtfsCounter, 917 mSDsluCounter, 1367 mSDsCounter, 0 mSdLazyCounter, 923 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 1990 SdHoareTripleChecker+Invalid, 1182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-02-05 21:40:52,153 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [917 Valid, 1990 Invalid, 1182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 923 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-02-05 21:40:52,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4999 states. [2025-02-05 21:40:52,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4999 to 4985. [2025-02-05 21:40:52,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4985 states, 3434 states have (on average 1.539895165987187) internal successors, (5288), 3464 states have internal predecessors, (5288), 1502 states have call successors, (1502), 48 states have call predecessors, (1502), 48 states have return successors, (1502), 1472 states have call predecessors, (1502), 1502 states have call successors, (1502) [2025-02-05 21:40:52,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4985 states to 4985 states and 8292 transitions. [2025-02-05 21:40:52,491 INFO L78 Accepts]: Start accepts. Automaton has 4985 states and 8292 transitions. Word has length 579 [2025-02-05 21:40:52,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 21:40:52,492 INFO L471 AbstractCegarLoop]: Abstraction has 4985 states and 8292 transitions. [2025-02-05 21:40:52,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 7 states have internal predecessors, (112), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 21:40:52,493 INFO L276 IsEmpty]: Start isEmpty. Operand 4985 states and 8292 transitions. [2025-02-05 21:40:52,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 580 [2025-02-05 21:40:52,499 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:40:52,499 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:40:52,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-05 21:40:52,499 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:40:52,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:40:52,500 INFO L85 PathProgramCache]: Analyzing trace with hash 2005576786, now seen corresponding path program 1 times [2025-02-05 21:40:52,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:40:52,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054326681] [2025-02-05 21:40:52,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:40:52,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:40:52,526 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 579 statements into 1 equivalence classes. [2025-02-05 21:40:52,616 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 579 of 579 statements. [2025-02-05 21:40:52,616 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:40:52,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:40:52,995 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2025-02-05 21:40:52,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:40:52,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054326681] [2025-02-05 21:40:52,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054326681] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 21:40:52,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 21:40:52,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 21:40:52,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644601736] [2025-02-05 21:40:52,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 21:40:52,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 21:40:52,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:40:52,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 21:40:52,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 21:40:52,997 INFO L87 Difference]: Start difference. First operand 4985 states and 8292 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 21:40:54,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 21:40:54,054 INFO L93 Difference]: Finished difference Result 24085 states and 39980 transitions. [2025-02-05 21:40:54,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 21:40:54,055 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 579 [2025-02-05 21:40:54,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 21:40:54,143 INFO L225 Difference]: With dead ends: 24085 [2025-02-05 21:40:54,143 INFO L226 Difference]: Without dead ends: 19103 [2025-02-05 21:40:54,165 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 [2025-02-05 21:40:54,166 INFO L435 NwaCegarLoop]: 711 mSDtfsCounter, 899 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 899 SdHoareTripleChecker+Valid, 1910 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-05 21:40:54,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [899 Valid, 1910 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-05 21:40:54,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19103 states. [2025-02-05 21:40:55,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19103 to 19089. [2025-02-05 21:40:55,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19089 states, 13060 states have (on average 1.5188361408882083) internal successors, (19836), 13184 states have internal predecessors, (19836), 5836 states have call successors, (5836), 192 states have call predecessors, (5836), 192 states have return successors, (5836), 5712 states have call predecessors, (5836), 5836 states have call successors, (5836) [2025-02-05 21:40:55,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19089 states to 19089 states and 31508 transitions. [2025-02-05 21:40:55,167 INFO L78 Accepts]: Start accepts. Automaton has 19089 states and 31508 transitions. Word has length 579 [2025-02-05 21:40:55,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 21:40:55,168 INFO L471 AbstractCegarLoop]: Abstraction has 19089 states and 31508 transitions. [2025-02-05 21:40:55,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 21:40:55,169 INFO L276 IsEmpty]: Start isEmpty. Operand 19089 states and 31508 transitions. [2025-02-05 21:40:55,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 580 [2025-02-05 21:40:55,179 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:40:55,180 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:40:55,180 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-05 21:40:55,180 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:40:55,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:40:55,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1500018161, now seen corresponding path program 1 times [2025-02-05 21:40:55,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:40:55,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807078772] [2025-02-05 21:40:55,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:40:55,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:40:55,204 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 579 statements into 1 equivalence classes. [2025-02-05 21:40:55,312 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 579 of 579 statements. [2025-02-05 21:40:55,312 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:40:55,312 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:40:56,071 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 42 proven. 237 refuted. 0 times theorem prover too weak. 17205 trivial. 0 not checked. [2025-02-05 21:40:56,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:40:56,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807078772] [2025-02-05 21:40:56,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807078772] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 21:40:56,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139159297] [2025-02-05 21:40:56,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:40:56,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 21:40:56,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 21:40:56,074 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 21:40:56,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-05 21:40:56,215 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 579 statements into 1 equivalence classes. [2025-02-05 21:40:56,334 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 579 of 579 statements. [2025-02-05 21:40:56,335 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:40:56,335 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:40:56,340 INFO L256 TraceCheckSpWp]: Trace formula consists of 1253 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-02-05 21:40:56,355 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 21:40:58,669 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 4545 proven. 237 refuted. 0 times theorem prover too weak. 12702 trivial. 0 not checked. [2025-02-05 21:40:58,670 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-05 21:40:59,375 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 42 proven. 237 refuted. 0 times theorem prover too weak. 17205 trivial. 0 not checked. [2025-02-05 21:40:59,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139159297] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-05 21:40:59,376 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-05 21:40:59,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 18 [2025-02-05 21:40:59,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232254488] [2025-02-05 21:40:59,376 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-05 21:40:59,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-05 21:40:59,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:40:59,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-05 21:40:59,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2025-02-05 21:40:59,379 INFO L87 Difference]: Start difference. First operand 19089 states and 31508 transitions. Second operand has 18 states, 18 states have (on average 14.5) internal successors, (261), 18 states have internal predecessors, (261), 4 states have call successors, (188), 3 states have call predecessors, (188), 6 states have return successors, (189), 4 states have call predecessors, (189), 4 states have call successors, (189) [2025-02-05 21:41:01,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 21:41:01,934 INFO L93 Difference]: Finished difference Result 55188 states and 90385 transitions. [2025-02-05 21:41:01,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-02-05 21:41:01,936 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 14.5) internal successors, (261), 18 states have internal predecessors, (261), 4 states have call successors, (188), 3 states have call predecessors, (188), 6 states have return successors, (189), 4 states have call predecessors, (189), 4 states have call successors, (189) Word has length 579 [2025-02-05 21:41:01,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 21:41:02,089 INFO L225 Difference]: With dead ends: 55188 [2025-02-05 21:41:02,090 INFO L226 Difference]: Without dead ends: 36102 [2025-02-05 21:41:02,155 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1185 GetRequests, 1148 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=416, Invalid=916, Unknown=0, NotChecked=0, Total=1332 [2025-02-05 21:41:02,155 INFO L435 NwaCegarLoop]: 368 mSDtfsCounter, 1888 mSDsluCounter, 1129 mSDsCounter, 0 mSdLazyCounter, 1274 mSolverCounterSat, 788 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1888 SdHoareTripleChecker+Valid, 1497 SdHoareTripleChecker+Invalid, 2062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 788 IncrementalHoareTripleChecker+Valid, 1274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-02-05 21:41:02,156 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1888 Valid, 1497 Invalid, 2062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [788 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-02-05 21:41:02,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36102 states. [2025-02-05 21:41:04,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36102 to 32447. [2025-02-05 21:41:04,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32447 states, 24355 states have (on average 1.538205707246972) internal successors, (37463), 24608 states have internal predecessors, (37463), 7642 states have call successors, (7642), 449 states have call predecessors, (7642), 449 states have return successors, (7642), 7389 states have call predecessors, (7642), 7642 states have call successors, (7642) [2025-02-05 21:41:04,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32447 states to 32447 states and 52747 transitions. [2025-02-05 21:41:04,340 INFO L78 Accepts]: Start accepts. Automaton has 32447 states and 52747 transitions. Word has length 579 [2025-02-05 21:41:04,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 21:41:04,341 INFO L471 AbstractCegarLoop]: Abstraction has 32447 states and 52747 transitions. [2025-02-05 21:41:04,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 14.5) internal successors, (261), 18 states have internal predecessors, (261), 4 states have call successors, (188), 3 states have call predecessors, (188), 6 states have return successors, (189), 4 states have call predecessors, (189), 4 states have call successors, (189) [2025-02-05 21:41:04,342 INFO L276 IsEmpty]: Start isEmpty. Operand 32447 states and 52747 transitions. [2025-02-05 21:41:04,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 581 [2025-02-05 21:41:04,362 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:41:04,362 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:41:04,371 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 [2025-02-05 21:41:04,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 21:41:04,568 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:41:04,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:41:04,569 INFO L85 PathProgramCache]: Analyzing trace with hash 313870904, now seen corresponding path program 1 times [2025-02-05 21:41:04,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:41:04,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026135706] [2025-02-05 21:41:04,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:41:04,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:41:04,589 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 580 statements into 1 equivalence classes. [2025-02-05 21:41:04,654 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 580 of 580 statements. [2025-02-05 21:41:04,655 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:41:04,655 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:41:04,911 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 147 proven. 132 refuted. 0 times theorem prover too weak. 17205 trivial. 0 not checked. [2025-02-05 21:41:04,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:41:04,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026135706] [2025-02-05 21:41:04,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026135706] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 21:41:04,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998733983] [2025-02-05 21:41:04,912 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:41:04,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 21:41:04,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 21:41:04,913 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 21:41:04,916 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-05 21:41:05,043 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 580 statements into 1 equivalence classes. [2025-02-05 21:41:05,139 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 580 of 580 statements. [2025-02-05 21:41:05,140 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:41:05,140 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:41:05,144 INFO L256 TraceCheckSpWp]: Trace formula consists of 1253 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-05 21:41:05,152 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 21:41:05,979 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 5643 proven. 54 refuted. 0 times theorem prover too weak. 11787 trivial. 0 not checked. [2025-02-05 21:41:05,979 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-05 21:41:06,713 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 225 proven. 54 refuted. 0 times theorem prover too weak. 17205 trivial. 0 not checked. [2025-02-05 21:41:06,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998733983] provided 0 perfect and 2 imperfect interpolant sequences [2025-02-05 21:41:06,714 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-02-05 21:41:06,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 8] total 17 [2025-02-05 21:41:06,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70738546] [2025-02-05 21:41:06,714 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-02-05 21:41:06,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-02-05 21:41:06,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:41:06,716 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-02-05 21:41:06,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2025-02-05 21:41:06,717 INFO L87 Difference]: Start difference. First operand 32447 states and 52747 transitions. Second operand has 17 states, 17 states have (on average 18.352941176470587) internal successors, (312), 17 states have internal predecessors, (312), 6 states have call successors, (282), 3 states have call predecessors, (282), 6 states have return successors, (282), 6 states have call predecessors, (282), 6 states have call successors, (282) [2025-02-05 21:41:15,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 21:41:15,059 INFO L93 Difference]: Finished difference Result 115169 states and 183193 transitions. [2025-02-05 21:41:15,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2025-02-05 21:41:15,060 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 18.352941176470587) internal successors, (312), 17 states have internal predecessors, (312), 6 states have call successors, (282), 3 states have call predecessors, (282), 6 states have return successors, (282), 6 states have call predecessors, (282), 6 states have call successors, (282) Word has length 580 [2025-02-05 21:41:15,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 21:41:15,400 INFO L225 Difference]: With dead ends: 115169 [2025-02-05 21:41:15,400 INFO L226 Difference]: Without dead ends: 82751 [2025-02-05 21:41:15,481 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1224 GetRequests, 1160 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1294 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1045, Invalid=3245, Unknown=0, NotChecked=0, Total=4290 [2025-02-05 21:41:15,485 INFO L435 NwaCegarLoop]: 416 mSDtfsCounter, 2945 mSDsluCounter, 3699 mSDsCounter, 0 mSdLazyCounter, 4006 mSolverCounterSat, 1745 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2997 SdHoareTripleChecker+Valid, 4115 SdHoareTripleChecker+Invalid, 5751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1745 IncrementalHoareTripleChecker+Valid, 4006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2025-02-05 21:41:15,485 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2997 Valid, 4115 Invalid, 5751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1745 Valid, 4006 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2025-02-05 21:41:15,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82751 states. [2025-02-05 21:41:19,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82751 to 52926. [2025-02-05 21:41:19,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52926 states, 38373 states have (on average 1.4816407369765199) internal successors, (56855), 38775 states have internal predecessors, (56855), 13617 states have call successors, (13617), 935 states have call predecessors, (13617), 935 states have return successors, (13617), 13215 states have call predecessors, (13617), 13617 states have call successors, (13617) [2025-02-05 21:41:19,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52926 states to 52926 states and 84089 transitions. [2025-02-05 21:41:19,327 INFO L78 Accepts]: Start accepts. Automaton has 52926 states and 84089 transitions. Word has length 580 [2025-02-05 21:41:19,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 21:41:19,328 INFO L471 AbstractCegarLoop]: Abstraction has 52926 states and 84089 transitions. [2025-02-05 21:41:19,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 18.352941176470587) internal successors, (312), 17 states have internal predecessors, (312), 6 states have call successors, (282), 3 states have call predecessors, (282), 6 states have return successors, (282), 6 states have call predecessors, (282), 6 states have call successors, (282) [2025-02-05 21:41:19,328 INFO L276 IsEmpty]: Start isEmpty. Operand 52926 states and 84089 transitions. [2025-02-05 21:41:19,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 582 [2025-02-05 21:41:19,352 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:41:19,352 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:41:19,360 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-05 21:41:19,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 21:41:19,553 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:41:19,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:41:19,554 INFO L85 PathProgramCache]: Analyzing trace with hash 718063083, now seen corresponding path program 1 times [2025-02-05 21:41:19,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:41:19,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205481339] [2025-02-05 21:41:19,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:41:19,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:41:19,578 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 581 statements into 1 equivalence classes. [2025-02-05 21:41:19,601 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 581 of 581 statements. [2025-02-05 21:41:19,602 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:41:19,602 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:41:20,120 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2025-02-05 21:41:20,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:41:20,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205481339] [2025-02-05 21:41:20,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205481339] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 21:41:20,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 21:41:20,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 21:41:20,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255456498] [2025-02-05 21:41:20,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 21:41:20,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 21:41:20,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:41:20,123 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 21:41:20,123 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 21:41:20,123 INFO L87 Difference]: Start difference. First operand 52926 states and 84089 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 21:41:24,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 21:41:24,400 INFO L93 Difference]: Finished difference Result 98790 states and 155795 transitions. [2025-02-05 21:41:24,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 21:41:24,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 581 [2025-02-05 21:41:24,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 21:41:24,679 INFO L225 Difference]: With dead ends: 98790 [2025-02-05 21:41:24,679 INFO L226 Difference]: Without dead ends: 62980 [2025-02-05 21:41:24,897 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 21:41:24,898 INFO L435 NwaCegarLoop]: 392 mSDtfsCounter, 407 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 21:41:24,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 777 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 21:41:24,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62980 states. [2025-02-05 21:41:30,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62980 to 62978. [2025-02-05 21:41:30,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62978 states, 42929 states have (on average 1.4308043513708681) internal successors, (61423), 43327 states have internal predecessors, (61423), 18681 states have call successors, (18681), 1367 states have call predecessors, (18681), 1367 states have return successors, (18681), 18283 states have call predecessors, (18681), 18681 states have call successors, (18681) [2025-02-05 21:41:30,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62978 states to 62978 states and 98785 transitions. [2025-02-05 21:41:30,432 INFO L78 Accepts]: Start accepts. Automaton has 62978 states and 98785 transitions. Word has length 581 [2025-02-05 21:41:30,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 21:41:30,433 INFO L471 AbstractCegarLoop]: Abstraction has 62978 states and 98785 transitions. [2025-02-05 21:41:30,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 21:41:30,434 INFO L276 IsEmpty]: Start isEmpty. Operand 62978 states and 98785 transitions. [2025-02-05 21:41:30,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 582 [2025-02-05 21:41:30,454 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 21:41:30,455 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 21:41:30,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-05 21:41:30,455 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 21:41:30,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 21:41:30,456 INFO L85 PathProgramCache]: Analyzing trace with hash -465284214, now seen corresponding path program 1 times [2025-02-05 21:41:30,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 21:41:30,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118567650] [2025-02-05 21:41:30,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 21:41:30,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 21:41:30,482 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 581 statements into 1 equivalence classes. [2025-02-05 21:41:30,551 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 581 of 581 statements. [2025-02-05 21:41:30,551 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 21:41:30,551 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 21:41:31,394 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2025-02-05 21:41:31,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 21:41:31,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118567650] [2025-02-05 21:41:31,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118567650] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 21:41:31,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 21:41:31,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-05 21:41:31,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918679248] [2025-02-05 21:41:31,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 21:41:31,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 21:41:31,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 21:41:31,396 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 21:41:31,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-02-05 21:41:31,397 INFO L87 Difference]: Start difference. First operand 62978 states and 98785 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 21:41:47,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 21:41:47,256 INFO L93 Difference]: Finished difference Result 217915 states and 341985 transitions. [2025-02-05 21:41:47,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-05 21:41:47,256 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 581 [2025-02-05 21:41:47,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 21:41:48,206 INFO L225 Difference]: With dead ends: 217915 [2025-02-05 21:41:48,206 INFO L226 Difference]: Without dead ends: 189991 [2025-02-05 21:41:48,342 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2025-02-05 21:41:48,342 INFO L435 NwaCegarLoop]: 636 mSDtfsCounter, 2061 mSDsluCounter, 1770 mSDsCounter, 0 mSdLazyCounter, 1055 mSolverCounterSat, 894 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2061 SdHoareTripleChecker+Valid, 2406 SdHoareTripleChecker+Invalid, 1949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 894 IncrementalHoareTripleChecker+Valid, 1055 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-02-05 21:41:48,343 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2061 Valid, 2406 Invalid, 1949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [894 Valid, 1055 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-02-05 21:41:48,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189991 states. [2025-02-05 21:42:00,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189991 to 134026. [2025-02-05 21:42:00,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134026 states, 93961 states have (on average 1.4618299081533828) internal successors, (137355), 94755 states have internal predecessors, (137355), 37333 states have call successors, (37333), 2731 states have call predecessors, (37333), 2731 states have return successors, (37333), 36539 states have call predecessors, (37333), 37333 states have call successors, (37333) [2025-02-05 21:42:01,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134026 states to 134026 states and 212021 transitions. [2025-02-05 21:42:01,827 INFO L78 Accepts]: Start accepts. Automaton has 134026 states and 212021 transitions. Word has length 581 [2025-02-05 21:42:01,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 21:42:01,829 INFO L471 AbstractCegarLoop]: Abstraction has 134026 states and 212021 transitions. [2025-02-05 21:42:01,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 21:42:01,829 INFO L276 IsEmpty]: Start isEmpty. Operand 134026 states and 212021 transitions.