./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-17.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-17.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6031d7dbf9253742754a9f33e4106b11959f7720644c83778bf015fc3b49fed8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-06 02:14:22,547 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 02:14:22,614 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-06 02:14:22,621 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 02:14:22,621 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 02:14:22,651 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 02:14:22,652 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 02:14:22,652 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 02:14:22,652 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-06 02:14:22,652 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-06 02:14:22,652 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 02:14:22,653 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 02:14:22,654 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 02:14:22,654 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 02:14:22,655 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 02:14:22,655 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 02:14:22,655 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 02:14:22,655 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 02:14:22,656 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 02:14:22,656 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 02:14:22,656 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 02:14:22,656 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 02:14:22,656 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 02:14:22,656 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 02:14:22,656 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 02:14:22,656 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 02:14:22,656 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 02:14:22,656 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 02:14:22,656 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 02:14:22,657 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 02:14:22,657 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-06 02:14:22,657 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 02:14:22,657 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 02:14:22,657 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 02:14:22,657 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 02:14:22,657 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 02:14:22,657 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 02:14:22,658 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 02:14:22,658 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 02:14:22,658 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 02:14:22,658 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 02:14:22,658 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 02:14:22,658 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 02:14:22,658 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 -> 6031d7dbf9253742754a9f33e4106b11959f7720644c83778bf015fc3b49fed8 [2025-02-06 02:14:22,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 02:14:22,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 02:14:22,953 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 02:14:22,955 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 02:14:22,956 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 02:14:22,957 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-17.i [2025-02-06 02:14:24,297 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/35d64990f/c556e15944e7460587876dcf6ae4fbe1/FLAG74274b866 [2025-02-06 02:14:24,637 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 02:14:24,638 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-17.i [2025-02-06 02:14:24,660 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/35d64990f/c556e15944e7460587876dcf6ae4fbe1/FLAG74274b866 [2025-02-06 02:14:24,679 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/35d64990f/c556e15944e7460587876dcf6ae4fbe1 [2025-02-06 02:14:24,682 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 02:14:24,684 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 02:14:24,685 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 02:14:24,685 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 02:14:24,689 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 02:14:24,690 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:14:24" (1/1) ... [2025-02-06 02:14:24,692 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f7f22ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:24, skipping insertion in model container [2025-02-06 02:14:24,692 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 02:14:24" (1/1) ... [2025-02-06 02:14:24,723 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 02:14:24,864 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-17.i[916,929] [2025-02-06 02:14:25,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 02:14:25,038 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 02:14:25,052 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-17.i[916,929] [2025-02-06 02:14:25,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 02:14:25,163 INFO L204 MainTranslator]: Completed translation [2025-02-06 02:14:25,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:25 WrapperNode [2025-02-06 02:14:25,163 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 02:14:25,164 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 02:14:25,164 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 02:14:25,164 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 02:14:25,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:25" (1/1) ... [2025-02-06 02:14:25,190 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:25" (1/1) ... [2025-02-06 02:14:25,269 INFO L138 Inliner]: procedures = 26, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 361 [2025-02-06 02:14:25,269 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 02:14:25,270 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 02:14:25,270 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 02:14:25,270 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 02:14:25,278 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:25" (1/1) ... [2025-02-06 02:14:25,278 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:25" (1/1) ... [2025-02-06 02:14:25,288 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:25" (1/1) ... [2025-02-06 02:14:25,351 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-06 02:14:25,352 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:25" (1/1) ... [2025-02-06 02:14:25,352 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:25" (1/1) ... [2025-02-06 02:14:25,379 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:25" (1/1) ... [2025-02-06 02:14:25,386 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:25" (1/1) ... [2025-02-06 02:14:25,395 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:25" (1/1) ... [2025-02-06 02:14:25,402 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:25" (1/1) ... [2025-02-06 02:14:25,415 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 02:14:25,416 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 02:14:25,416 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 02:14:25,416 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 02:14:25,419 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:25" (1/1) ... [2025-02-06 02:14:25,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 02:14:25,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:14:25,451 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 02:14:25,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 02:14:25,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 02:14:25,475 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-06 02:14:25,476 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-06 02:14:25,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-06 02:14:25,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 02:14:25,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 02:14:25,566 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 02:14:25,568 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 02:14:26,303 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L349: havoc property_#t~bitwise32#1; [2025-02-06 02:14:26,374 INFO L? ?]: Removed 38 outVars from TransFormulas that were not future-live. [2025-02-06 02:14:26,375 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 02:14:26,398 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 02:14:26,401 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 02:14:26,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:14:26 BoogieIcfgContainer [2025-02-06 02:14:26,401 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 02:14:26,404 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 02:14:26,404 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 02:14:26,408 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 02:14:26,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 02:14:24" (1/3) ... [2025-02-06 02:14:26,409 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36cf3c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:14:26, skipping insertion in model container [2025-02-06 02:14:26,410 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 02:14:25" (2/3) ... [2025-02-06 02:14:26,411 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36cf3c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 02:14:26, skipping insertion in model container [2025-02-06 02:14:26,411 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 02:14:26" (3/3) ... [2025-02-06 02:14:26,412 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-17.i [2025-02-06 02:14:26,425 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 02:14:26,428 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount250_file-17.i that has 2 procedures, 149 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-06 02:14:26,490 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 02:14:26,501 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;@704e7ae7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 02:14:26,503 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-06 02:14:26,508 INFO L276 IsEmpty]: Start isEmpty. Operand has 149 states, 99 states have (on average 1.4646464646464648) internal successors, (145), 100 states have internal predecessors, (145), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2025-02-06 02:14:26,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2025-02-06 02:14:26,526 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:14:26,527 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:14:26,528 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:14:26,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:14:26,534 INFO L85 PathProgramCache]: Analyzing trace with hash -126767221, now seen corresponding path program 1 times [2025-02-06 02:14:26,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:14:26,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049552497] [2025-02-06 02:14:26,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:14:26,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:14:26,646 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 311 statements into 1 equivalence classes. [2025-02-06 02:14:26,689 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 311 of 311 statements. [2025-02-06 02:14:26,689 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:14:26,689 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:14:27,057 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 4232 trivial. 0 not checked. [2025-02-06 02:14:27,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:14:27,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049552497] [2025-02-06 02:14:27,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049552497] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-06 02:14:27,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802357238] [2025-02-06 02:14:27,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:14:27,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-06 02:14:27,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 02:14:27,064 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-06 02:14:27,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-06 02:14:27,214 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 311 statements into 1 equivalence classes. [2025-02-06 02:14:27,351 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 311 of 311 statements. [2025-02-06 02:14:27,351 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:14:27,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:14:27,357 INFO L256 TraceCheckSpWp]: Trace formula consists of 749 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-06 02:14:27,373 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-06 02:14:27,417 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 4232 trivial. 0 not checked. [2025-02-06 02:14:27,417 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-06 02:14:27,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802357238] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:14:27,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-06 02:14:27,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-06 02:14:27,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027255491] [2025-02-06 02:14:27,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:14:27,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 02:14:27,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:14:27,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 02:14:27,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 02:14:27,450 INFO L87 Difference]: Start difference. First operand has 149 states, 99 states have (on average 1.4646464646464648) internal successors, (145), 100 states have internal predecessors, (145), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) Second operand has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 2 states have call successors, (47) [2025-02-06 02:14:27,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:14:27,488 INFO L93 Difference]: Finished difference Result 292 states and 520 transitions. [2025-02-06 02:14:27,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 02:14:27,491 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 2 states have call successors, (47) Word has length 311 [2025-02-06 02:14:27,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:14:27,499 INFO L225 Difference]: With dead ends: 292 [2025-02-06 02:14:27,499 INFO L226 Difference]: Without dead ends: 146 [2025-02-06 02:14:27,506 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 312 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 02:14:27,508 INFO L435 NwaCegarLoop]: 232 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-06 02:14:27,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 232 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-06 02:14:27,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2025-02-06 02:14:27,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2025-02-06 02:14:27,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 97 states have (on average 1.443298969072165) internal successors, (140), 97 states have internal predecessors, (140), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2025-02-06 02:14:27,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 234 transitions. [2025-02-06 02:14:27,561 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 234 transitions. Word has length 311 [2025-02-06 02:14:27,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:14:27,562 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 234 transitions. [2025-02-06 02:14:27,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (47), 2 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 2 states have call successors, (47) [2025-02-06 02:14:27,562 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 234 transitions. [2025-02-06 02:14:27,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2025-02-06 02:14:27,568 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:14:27,569 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:14:27,576 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-06 02:14:27,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-06 02:14:27,770 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:14:27,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:14:27,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1647530256, now seen corresponding path program 1 times [2025-02-06 02:14:27,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:14:27,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639895909] [2025-02-06 02:14:27,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:14:27,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:14:27,838 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 311 statements into 1 equivalence classes. [2025-02-06 02:14:27,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 311 of 311 statements. [2025-02-06 02:14:27,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:14:27,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:14:28,755 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2025-02-06 02:14:28,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:14:28,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639895909] [2025-02-06 02:14:28,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639895909] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:14:28,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:14:28,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 02:14:28,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752616038] [2025-02-06 02:14:28,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:14:28,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 02:14:28,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:14:28,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 02:14:28,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 02:14:28,758 INFO L87 Difference]: Start difference. First operand 146 states and 234 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2025-02-06 02:14:28,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:14:28,887 INFO L93 Difference]: Finished difference Result 432 states and 696 transitions. [2025-02-06 02:14:28,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 02:14:28,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 311 [2025-02-06 02:14:28,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:14:28,895 INFO L225 Difference]: With dead ends: 432 [2025-02-06 02:14:28,896 INFO L226 Difference]: Without dead ends: 289 [2025-02-06 02:14:28,898 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 02:14:28,899 INFO L435 NwaCegarLoop]: 410 mSDtfsCounter, 226 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-06 02:14:28,900 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 631 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-06 02:14:28,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2025-02-06 02:14:28,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 155. [2025-02-06 02:14:28,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 106 states have (on average 1.4433962264150944) internal successors, (153), 106 states have internal predecessors, (153), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2025-02-06 02:14:28,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 247 transitions. [2025-02-06 02:14:28,936 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 247 transitions. Word has length 311 [2025-02-06 02:14:28,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:14:28,939 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 247 transitions. [2025-02-06 02:14:28,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2025-02-06 02:14:28,940 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 247 transitions. [2025-02-06 02:14:28,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2025-02-06 02:14:28,944 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:14:28,945 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:14:28,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 02:14:28,945 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:14:28,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:14:28,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1650364687, now seen corresponding path program 1 times [2025-02-06 02:14:28,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:14:28,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983860915] [2025-02-06 02:14:28,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:14:28,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:14:28,985 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 311 statements into 1 equivalence classes. [2025-02-06 02:14:30,171 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 311 of 311 statements. [2025-02-06 02:14:30,172 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:14:30,172 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:14:35,585 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2025-02-06 02:14:35,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:14:35,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983860915] [2025-02-06 02:14:35,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983860915] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:14:35,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:14:35,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-02-06 02:14:35,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599951146] [2025-02-06 02:14:35,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:14:35,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-06 02:14:35,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:14:35,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-06 02:14:35,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2025-02-06 02:14:35,589 INFO L87 Difference]: Start difference. First operand 155 states and 247 transitions. Second operand has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 3 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2025-02-06 02:14:39,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:14:39,224 INFO L93 Difference]: Finished difference Result 975 states and 1540 transitions. [2025-02-06 02:14:39,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-06 02:14:39,225 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 3 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 311 [2025-02-06 02:14:39,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:14:39,234 INFO L225 Difference]: With dead ends: 975 [2025-02-06 02:14:39,235 INFO L226 Difference]: Without dead ends: 823 [2025-02-06 02:14:39,236 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=154, Invalid=548, Unknown=0, NotChecked=0, Total=702 [2025-02-06 02:14:39,238 INFO L435 NwaCegarLoop]: 327 mSDtfsCounter, 2060 mSDsluCounter, 1967 mSDsCounter, 0 mSdLazyCounter, 1948 mSolverCounterSat, 418 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2060 SdHoareTripleChecker+Valid, 2294 SdHoareTripleChecker+Invalid, 2366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 418 IncrementalHoareTripleChecker+Valid, 1948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2025-02-06 02:14:39,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2060 Valid, 2294 Invalid, 2366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [418 Valid, 1948 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2025-02-06 02:14:39,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2025-02-06 02:14:39,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 593. [2025-02-06 02:14:39,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 593 states, 457 states have (on average 1.50109409190372) internal successors, (686), 459 states have internal predecessors, (686), 130 states have call successors, (130), 5 states have call predecessors, (130), 5 states have return successors, (130), 128 states have call predecessors, (130), 130 states have call successors, (130) [2025-02-06 02:14:39,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 946 transitions. [2025-02-06 02:14:39,342 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 946 transitions. Word has length 311 [2025-02-06 02:14:39,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:14:39,343 INFO L471 AbstractCegarLoop]: Abstraction has 593 states and 946 transitions. [2025-02-06 02:14:39,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 3 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2025-02-06 02:14:39,344 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 946 transitions. [2025-02-06 02:14:39,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2025-02-06 02:14:39,347 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:14:39,348 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:14:39,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 02:14:39,348 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:14:39,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:14:39,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1583357934, now seen corresponding path program 1 times [2025-02-06 02:14:39,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:14:39,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877727788] [2025-02-06 02:14:39,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:14:39,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:14:39,375 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 311 statements into 1 equivalence classes. [2025-02-06 02:14:39,409 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 311 of 311 statements. [2025-02-06 02:14:39,409 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:14:39,410 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:14:39,744 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2025-02-06 02:14:39,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:14:39,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877727788] [2025-02-06 02:14:39,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877727788] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:14:39,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:14:39,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 02:14:39,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666449720] [2025-02-06 02:14:39,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:14:39,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 02:14:39,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:14:39,747 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 02:14:39,747 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 02:14:39,747 INFO L87 Difference]: Start difference. First operand 593 states and 946 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2025-02-06 02:14:40,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:14:40,572 INFO L93 Difference]: Finished difference Result 1994 states and 3173 transitions. [2025-02-06 02:14:40,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-06 02:14:40,572 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 311 [2025-02-06 02:14:40,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:14:40,588 INFO L225 Difference]: With dead ends: 1994 [2025-02-06 02:14:40,589 INFO L226 Difference]: Without dead ends: 1404 [2025-02-06 02:14:40,592 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-06 02:14:40,593 INFO L435 NwaCegarLoop]: 229 mSDtfsCounter, 251 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 963 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-06 02:14:40,594 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 963 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-06 02:14:40,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1404 states. [2025-02-06 02:14:40,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1404 to 1398. [2025-02-06 02:14:40,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1398 states, 998 states have (on average 1.4448897795591182) internal successors, (1442), 1006 states have internal predecessors, (1442), 384 states have call successors, (384), 15 states have call predecessors, (384), 15 states have return successors, (384), 376 states have call predecessors, (384), 384 states have call successors, (384) [2025-02-06 02:14:40,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1398 states to 1398 states and 2210 transitions. [2025-02-06 02:14:40,793 INFO L78 Accepts]: Start accepts. Automaton has 1398 states and 2210 transitions. Word has length 311 [2025-02-06 02:14:40,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:14:40,795 INFO L471 AbstractCegarLoop]: Abstraction has 1398 states and 2210 transitions. [2025-02-06 02:14:40,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2025-02-06 02:14:40,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1398 states and 2210 transitions. [2025-02-06 02:14:40,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2025-02-06 02:14:40,801 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:14:40,801 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:14:40,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 02:14:40,802 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:14:40,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:14:40,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1386844429, now seen corresponding path program 1 times [2025-02-06 02:14:40,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:14:40,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927931144] [2025-02-06 02:14:40,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:14:40,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:14:40,825 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 311 statements into 1 equivalence classes. [2025-02-06 02:14:40,945 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 311 of 311 statements. [2025-02-06 02:14:40,945 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:14:40,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:14:41,428 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2025-02-06 02:14:41,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:14:41,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927931144] [2025-02-06 02:14:41,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927931144] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:14:41,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:14:41,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 02:14:41,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458580234] [2025-02-06 02:14:41,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:14:41,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-06 02:14:41,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:14:41,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-06 02:14:41,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-06 02:14:41,430 INFO L87 Difference]: Start difference. First operand 1398 states and 2210 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2025-02-06 02:14:42,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:14:42,314 INFO L93 Difference]: Finished difference Result 3560 states and 5632 transitions. [2025-02-06 02:14:42,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 02:14:42,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 311 [2025-02-06 02:14:42,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:14:42,330 INFO L225 Difference]: With dead ends: 3560 [2025-02-06 02:14:42,331 INFO L226 Difference]: Without dead ends: 2165 [2025-02-06 02:14:42,336 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2025-02-06 02:14:42,336 INFO L435 NwaCegarLoop]: 437 mSDtfsCounter, 642 mSDsluCounter, 656 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 642 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-06 02:14:42,337 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [642 Valid, 1093 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-06 02:14:42,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2165 states. [2025-02-06 02:14:42,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2165 to 1877. [2025-02-06 02:14:42,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1877 states, 1325 states have (on average 1.4422641509433962) internal successors, (1911), 1334 states have internal predecessors, (1911), 532 states have call successors, (532), 19 states have call predecessors, (532), 19 states have return successors, (532), 523 states have call predecessors, (532), 532 states have call successors, (532) [2025-02-06 02:14:42,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1877 states to 1877 states and 2975 transitions. [2025-02-06 02:14:42,561 INFO L78 Accepts]: Start accepts. Automaton has 1877 states and 2975 transitions. Word has length 311 [2025-02-06 02:14:42,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:14:42,563 INFO L471 AbstractCegarLoop]: Abstraction has 1877 states and 2975 transitions. [2025-02-06 02:14:42,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2025-02-06 02:14:42,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1877 states and 2975 transitions. [2025-02-06 02:14:42,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2025-02-06 02:14:42,571 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:14:42,571 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:14:42,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 02:14:42,574 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:14:42,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:14:42,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1682988592, now seen corresponding path program 1 times [2025-02-06 02:14:42,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:14:42,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983860949] [2025-02-06 02:14:42,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:14:42,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:14:42,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 311 statements into 1 equivalence classes. [2025-02-06 02:14:42,897 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 311 of 311 statements. [2025-02-06 02:14:42,897 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:14:42,897 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:14:51,472 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2025-02-06 02:14:51,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:14:51,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983860949] [2025-02-06 02:14:51,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983860949] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:14:51,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:14:51,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-02-06 02:14:51,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067346729] [2025-02-06 02:14:51,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:14:51,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2025-02-06 02:14:51,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:14:51,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2025-02-06 02:14:51,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2025-02-06 02:14:51,475 INFO L87 Difference]: Start difference. First operand 1877 states and 2975 transitions. Second operand has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 3 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2025-02-06 02:14:56,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:14:56,338 INFO L93 Difference]: Finished difference Result 3388 states and 5360 transitions. [2025-02-06 02:14:56,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-02-06 02:14:56,339 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 3 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 311 [2025-02-06 02:14:56,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:14:56,362 INFO L225 Difference]: With dead ends: 3388 [2025-02-06 02:14:56,362 INFO L226 Difference]: Without dead ends: 2798 [2025-02-06 02:14:56,366 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2025-02-06 02:14:56,368 INFO L435 NwaCegarLoop]: 276 mSDtfsCounter, 798 mSDsluCounter, 1784 mSDsCounter, 0 mSdLazyCounter, 1390 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 2060 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 1390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2025-02-06 02:14:56,368 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [798 Valid, 2060 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 1390 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2025-02-06 02:14:56,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2025-02-06 02:14:56,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2097. [2025-02-06 02:14:56,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2097 states, 1496 states have (on average 1.4512032085561497) internal successors, (2171), 1505 states have internal predecessors, (2171), 579 states have call successors, (579), 21 states have call predecessors, (579), 21 states have return successors, (579), 570 states have call predecessors, (579), 579 states have call successors, (579) [2025-02-06 02:14:56,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2097 states to 2097 states and 3329 transitions. [2025-02-06 02:14:56,598 INFO L78 Accepts]: Start accepts. Automaton has 2097 states and 3329 transitions. Word has length 311 [2025-02-06 02:14:56,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:14:56,599 INFO L471 AbstractCegarLoop]: Abstraction has 2097 states and 3329 transitions. [2025-02-06 02:14:56,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.076923076923077) internal successors, (79), 13 states have internal predecessors, (79), 3 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2025-02-06 02:14:56,599 INFO L276 IsEmpty]: Start isEmpty. Operand 2097 states and 3329 transitions. [2025-02-06 02:14:56,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2025-02-06 02:14:56,605 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:14:56,605 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:14:56,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-06 02:14:56,605 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:14:56,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:14:56,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1320598926, now seen corresponding path program 1 times [2025-02-06 02:14:56,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:14:56,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026665089] [2025-02-06 02:14:56,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:14:56,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:14:56,632 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 311 statements into 1 equivalence classes. [2025-02-06 02:14:57,184 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 311 of 311 statements. [2025-02-06 02:14:57,185 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:14:57,185 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:15:10,446 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2025-02-06 02:15:10,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:15:10,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026665089] [2025-02-06 02:15:10,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026665089] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:15:10,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:15:10,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2025-02-06 02:15:10,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010205954] [2025-02-06 02:15:10,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:15:10,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-06 02:15:10,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:15:10,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-06 02:15:10,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2025-02-06 02:15:10,449 INFO L87 Difference]: Start difference. First operand 2097 states and 3329 transitions. Second operand has 18 states, 18 states have (on average 4.388888888888889) internal successors, (79), 18 states have internal predecessors, (79), 4 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) [2025-02-06 02:15:16,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:15:16,286 INFO L93 Difference]: Finished difference Result 3318 states and 5230 transitions. [2025-02-06 02:15:16,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-06 02:15:16,289 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.388888888888889) internal successors, (79), 18 states have internal predecessors, (79), 4 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) Word has length 311 [2025-02-06 02:15:16,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:15:16,309 INFO L225 Difference]: With dead ends: 3318 [2025-02-06 02:15:16,310 INFO L226 Difference]: Without dead ends: 3166 [2025-02-06 02:15:16,313 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=173, Invalid=697, Unknown=0, NotChecked=0, Total=870 [2025-02-06 02:15:16,314 INFO L435 NwaCegarLoop]: 237 mSDtfsCounter, 1367 mSDsluCounter, 1743 mSDsCounter, 0 mSdLazyCounter, 2138 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1367 SdHoareTripleChecker+Valid, 1980 SdHoareTripleChecker+Invalid, 2382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 2138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2025-02-06 02:15:16,315 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1367 Valid, 1980 Invalid, 2382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 2138 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2025-02-06 02:15:16,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3166 states. [2025-02-06 02:15:16,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3166 to 2142. [2025-02-06 02:15:16,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2142 states, 1540 states have (on average 1.4564935064935065) internal successors, (2243), 1549 states have internal predecessors, (2243), 579 states have call successors, (579), 22 states have call predecessors, (579), 22 states have return successors, (579), 570 states have call predecessors, (579), 579 states have call successors, (579) [2025-02-06 02:15:16,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2142 states to 2142 states and 3401 transitions. [2025-02-06 02:15:16,559 INFO L78 Accepts]: Start accepts. Automaton has 2142 states and 3401 transitions. Word has length 311 [2025-02-06 02:15:16,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:15:16,560 INFO L471 AbstractCegarLoop]: Abstraction has 2142 states and 3401 transitions. [2025-02-06 02:15:16,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.388888888888889) internal successors, (79), 18 states have internal predecessors, (79), 4 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 4 states have call predecessors, (47), 4 states have call successors, (47) [2025-02-06 02:15:16,561 INFO L276 IsEmpty]: Start isEmpty. Operand 2142 states and 3401 transitions. [2025-02-06 02:15:16,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2025-02-06 02:15:16,566 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:15:16,567 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:15:16,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-06 02:15:16,567 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:15:16,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:15:16,568 INFO L85 PathProgramCache]: Analyzing trace with hash -2012754353, now seen corresponding path program 1 times [2025-02-06 02:15:16,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:15:16,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410522403] [2025-02-06 02:15:16,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:15:16,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:15:16,593 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 311 statements into 1 equivalence classes. [2025-02-06 02:15:16,825 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 311 of 311 statements. [2025-02-06 02:15:16,825 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:15:16,825 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:15:23,214 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2025-02-06 02:15:23,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:15:23,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410522403] [2025-02-06 02:15:23,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410522403] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:15:23,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:15:23,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2025-02-06 02:15:23,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166093110] [2025-02-06 02:15:23,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:15:23,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-02-06 02:15:23,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:15:23,216 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-02-06 02:15:23,216 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2025-02-06 02:15:23,216 INFO L87 Difference]: Start difference. First operand 2142 states and 3401 transitions. Second operand has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 3 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2025-02-06 02:15:29,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:15:29,795 INFO L93 Difference]: Finished difference Result 3890 states and 6125 transitions. [2025-02-06 02:15:29,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-02-06 02:15:29,796 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 3 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 311 [2025-02-06 02:15:29,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:15:29,814 INFO L225 Difference]: With dead ends: 3890 [2025-02-06 02:15:29,814 INFO L226 Difference]: Without dead ends: 3738 [2025-02-06 02:15:29,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=149, Invalid=501, Unknown=0, NotChecked=0, Total=650 [2025-02-06 02:15:29,817 INFO L435 NwaCegarLoop]: 287 mSDtfsCounter, 1299 mSDsluCounter, 1673 mSDsCounter, 0 mSdLazyCounter, 2236 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1299 SdHoareTripleChecker+Valid, 1960 SdHoareTripleChecker+Invalid, 2461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 2236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2025-02-06 02:15:29,817 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1299 Valid, 1960 Invalid, 2461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 2236 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2025-02-06 02:15:29,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3738 states. [2025-02-06 02:15:30,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3738 to 2173. [2025-02-06 02:15:30,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2173 states, 1571 states have (on average 1.4614894971355825) internal successors, (2296), 1580 states have internal predecessors, (2296), 579 states have call successors, (579), 22 states have call predecessors, (579), 22 states have return successors, (579), 570 states have call predecessors, (579), 579 states have call successors, (579) [2025-02-06 02:15:30,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2173 states to 2173 states and 3454 transitions. [2025-02-06 02:15:30,049 INFO L78 Accepts]: Start accepts. Automaton has 2173 states and 3454 transitions. Word has length 311 [2025-02-06 02:15:30,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:15:30,051 INFO L471 AbstractCegarLoop]: Abstraction has 2173 states and 3454 transitions. [2025-02-06 02:15:30,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.266666666666667) internal successors, (79), 15 states have internal predecessors, (79), 3 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2025-02-06 02:15:30,051 INFO L276 IsEmpty]: Start isEmpty. Operand 2173 states and 3454 transitions. [2025-02-06 02:15:30,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2025-02-06 02:15:30,056 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:15:30,056 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:15:30,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-06 02:15:30,057 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:15:30,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:15:30,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1359529360, now seen corresponding path program 1 times [2025-02-06 02:15:30,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:15:30,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724227225] [2025-02-06 02:15:30,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:15:30,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:15:30,079 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 311 statements into 1 equivalence classes. [2025-02-06 02:15:30,096 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 311 of 311 statements. [2025-02-06 02:15:30,096 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:15:30,096 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:15:30,251 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2025-02-06 02:15:30,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:15:30,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724227225] [2025-02-06 02:15:30,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724227225] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:15:30,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:15:30,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-06 02:15:30,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102674955] [2025-02-06 02:15:30,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:15:30,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-06 02:15:30,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:15:30,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-06 02:15:30,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-06 02:15:30,255 INFO L87 Difference]: Start difference. First operand 2173 states and 3454 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2025-02-06 02:15:30,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:15:30,760 INFO L93 Difference]: Finished difference Result 4432 states and 7046 transitions. [2025-02-06 02:15:30,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-06 02:15:30,761 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) Word has length 311 [2025-02-06 02:15:30,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:15:30,776 INFO L225 Difference]: With dead ends: 4432 [2025-02-06 02:15:30,777 INFO L226 Difference]: Without dead ends: 2396 [2025-02-06 02:15:30,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-06 02:15:30,784 INFO L435 NwaCegarLoop]: 275 mSDtfsCounter, 237 mSDsluCounter, 440 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-06 02:15:30,784 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 715 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-06 02:15:30,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2396 states. [2025-02-06 02:15:31,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2396 to 2173. [2025-02-06 02:15:31,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2173 states, 1571 states have (on average 1.455760661998727) internal successors, (2287), 1580 states have internal predecessors, (2287), 579 states have call successors, (579), 22 states have call predecessors, (579), 22 states have return successors, (579), 570 states have call predecessors, (579), 579 states have call successors, (579) [2025-02-06 02:15:31,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2173 states to 2173 states and 3445 transitions. [2025-02-06 02:15:31,069 INFO L78 Accepts]: Start accepts. Automaton has 2173 states and 3445 transitions. Word has length 311 [2025-02-06 02:15:31,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:15:31,073 INFO L471 AbstractCegarLoop]: Abstraction has 2173 states and 3445 transitions. [2025-02-06 02:15:31,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 1 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 1 states have call predecessors, (47), 1 states have call successors, (47) [2025-02-06 02:15:31,074 INFO L276 IsEmpty]: Start isEmpty. Operand 2173 states and 3445 transitions. [2025-02-06 02:15:31,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2025-02-06 02:15:31,081 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:15:31,081 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:15:31,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-06 02:15:31,081 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:15:31,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:15:31,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1898425776, now seen corresponding path program 1 times [2025-02-06 02:15:31,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:15:31,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605041043] [2025-02-06 02:15:31,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:15:31,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:15:31,122 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 311 statements into 1 equivalence classes. [2025-02-06 02:15:31,242 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 311 of 311 statements. [2025-02-06 02:15:31,242 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:15:31,242 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 02:15:31,635 INFO L134 CoverageAnalysis]: Checked inductivity of 4324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2025-02-06 02:15:31,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 02:15:31,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605041043] [2025-02-06 02:15:31,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605041043] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 02:15:31,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 02:15:31,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-06 02:15:31,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947529778] [2025-02-06 02:15:31,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 02:15:31,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 02:15:31,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 02:15:31,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 02:15:31,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-02-06 02:15:31,638 INFO L87 Difference]: Start difference. First operand 2173 states and 3445 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2025-02-06 02:15:32,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-06 02:15:32,695 INFO L93 Difference]: Finished difference Result 7769 states and 12438 transitions. [2025-02-06 02:15:32,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 02:15:32,696 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 311 [2025-02-06 02:15:32,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-06 02:15:32,724 INFO L225 Difference]: With dead ends: 7769 [2025-02-06 02:15:32,724 INFO L226 Difference]: Without dead ends: 5733 [2025-02-06 02:15:32,731 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2025-02-06 02:15:32,731 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 612 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-06 02:15:32,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [612 Valid, 1065 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-06 02:15:32,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5733 states. [2025-02-06 02:15:33,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5733 to 3754. [2025-02-06 02:15:33,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3754 states, 2694 states have (on average 1.447290274684484) internal successors, (3899), 2711 states have internal predecessors, (3899), 1020 states have call successors, (1020), 39 states have call predecessors, (1020), 39 states have return successors, (1020), 1003 states have call predecessors, (1020), 1020 states have call successors, (1020) [2025-02-06 02:15:33,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3754 states to 3754 states and 5939 transitions. [2025-02-06 02:15:33,268 INFO L78 Accepts]: Start accepts. Automaton has 3754 states and 5939 transitions. Word has length 311 [2025-02-06 02:15:33,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-06 02:15:33,269 INFO L471 AbstractCegarLoop]: Abstraction has 3754 states and 5939 transitions. [2025-02-06 02:15:33,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2025-02-06 02:15:33,272 INFO L276 IsEmpty]: Start isEmpty. Operand 3754 states and 5939 transitions. [2025-02-06 02:15:33,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2025-02-06 02:15:33,278 INFO L210 NwaCegarLoop]: Found error trace [2025-02-06 02:15:33,279 INFO L218 NwaCegarLoop]: trace histogram [47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-06 02:15:33,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-06 02:15:33,279 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-06 02:15:33,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 02:15:33,280 INFO L85 PathProgramCache]: Analyzing trace with hash 975742193, now seen corresponding path program 1 times [2025-02-06 02:15:33,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 02:15:33,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267407781] [2025-02-06 02:15:33,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 02:15:33,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 02:15:33,300 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 311 statements into 1 equivalence classes. [2025-02-06 02:15:33,559 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 311 of 311 statements. [2025-02-06 02:15:33,559 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 02:15:33,560 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat