./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-78.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-78.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 9c24cf8614122b4c7261c0b63b81d3256f2a3b6068da6913f88528a2638cc015 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 22:01:16,531 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 22:01:16,599 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 22:01:16,603 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 22:01:16,603 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 22:01:16,620 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 22:01:16,620 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 22:01:16,620 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 22:01:16,621 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 22:01:16,621 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 22:01:16,621 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 22:01:16,621 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 22:01:16,621 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 22:01:16,621 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 22:01:16,621 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 22:01:16,622 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 22:01:16,622 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 22:01:16,622 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 22:01:16,622 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 22:01:16,622 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 22:01:16,622 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 22:01:16,622 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 22:01:16,622 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 22:01:16,622 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 22:01:16,622 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 22:01:16,622 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 22:01:16,623 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 22:01:16,623 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 22:01:16,623 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 22:01:16,623 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 22:01:16,623 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 22:01:16,623 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 22:01:16,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 22:01:16,623 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 22:01:16,623 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 22:01:16,623 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 22:01:16,623 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 22:01:16,623 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 22:01:16,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 22:01:16,623 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 22:01:16,623 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 22:01:16,623 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 22:01:16,623 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 22:01:16,623 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 -> 9c24cf8614122b4c7261c0b63b81d3256f2a3b6068da6913f88528a2638cc015 [2025-02-05 22:01:16,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 22:01:16,856 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 22:01:16,858 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 22:01:16,859 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 22:01:16,859 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 22:01:16,860 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-78.i [2025-02-05 22:01:18,061 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/358ec04a5/986db31f87e9411c9ffbf4102bc4657e/FLAG0992a8c3c [2025-02-05 22:01:18,351 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 22:01:18,358 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-78.i [2025-02-05 22:01:18,375 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/358ec04a5/986db31f87e9411c9ffbf4102bc4657e/FLAG0992a8c3c [2025-02-05 22:01:18,630 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/358ec04a5/986db31f87e9411c9ffbf4102bc4657e [2025-02-05 22:01:18,632 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 22:01:18,633 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 22:01:18,635 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 22:01:18,636 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 22:01:18,639 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 22:01:18,640 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 10:01:18" (1/1) ... [2025-02-05 22:01:18,640 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52deffa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:18, skipping insertion in model container [2025-02-05 22:01:18,642 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 10:01:18" (1/1) ... [2025-02-05 22:01:18,667 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 22:01:18,771 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-78.i[916,929] [2025-02-05 22:01:18,907 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 22:01:18,917 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 22:01:18,926 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-78.i[916,929] [2025-02-05 22:01:18,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 22:01:19,000 INFO L204 MainTranslator]: Completed translation [2025-02-05 22:01:19,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:19 WrapperNode [2025-02-05 22:01:19,001 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 22:01:19,002 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 22:01:19,002 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 22:01:19,002 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 22:01:19,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:19" (1/1) ... [2025-02-05 22:01:19,019 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:19" (1/1) ... [2025-02-05 22:01:19,088 INFO L138 Inliner]: procedures = 26, calls = 107, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 860 [2025-02-05 22:01:19,089 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 22:01:19,089 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 22:01:19,090 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 22:01:19,090 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 22:01:19,096 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:19" (1/1) ... [2025-02-05 22:01:19,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:19" (1/1) ... [2025-02-05 22:01:19,111 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:19" (1/1) ... [2025-02-05 22:01:19,149 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-02-05 22:01:19,151 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:19" (1/1) ... [2025-02-05 22:01:19,151 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:19" (1/1) ... [2025-02-05 22:01:19,208 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:19" (1/1) ... [2025-02-05 22:01:19,216 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:19" (1/1) ... [2025-02-05 22:01:19,231 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:19" (1/1) ... [2025-02-05 22:01:19,240 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:19" (1/1) ... [2025-02-05 22:01:19,251 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 22:01:19,252 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 22:01:19,253 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 22:01:19,253 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 22:01:19,254 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:19" (1/1) ... [2025-02-05 22:01:19,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 22:01:19,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 22:01:19,279 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-05 22:01:19,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-05 22:01:19,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 22:01:19,300 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-05 22:01:19,300 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-05 22:01:19,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 22:01:19,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 22:01:19,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 22:01:19,432 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 22:01:19,433 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 22:01:20,264 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L695: havoc property_#t~bitwise80#1;havoc property_#t~short81#1;havoc property_#t~bitwise82#1;havoc property_#t~short83#1; [2025-02-05 22:01:20,460 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2025-02-05 22:01:20,460 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 22:01:20,484 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 22:01:20,484 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 22:01:20,485 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 10:01:20 BoogieIcfgContainer [2025-02-05 22:01:20,485 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 22:01:20,486 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 22:01:20,486 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 22:01:20,489 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 22:01:20,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 10:01:18" (1/3) ... [2025-02-05 22:01:20,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17fbe445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 10:01:20, skipping insertion in model container [2025-02-05 22:01:20,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 10:01:19" (2/3) ... [2025-02-05 22:01:20,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17fbe445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 10:01:20, skipping insertion in model container [2025-02-05 22:01:20,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 10:01:20" (3/3) ... [2025-02-05 22:01:20,491 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-78.i [2025-02-05 22:01:20,500 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 22:01:20,502 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-78.i that has 2 procedures, 349 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-05 22:01:20,542 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 22:01:20,553 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;@78ac759d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 22:01:20,553 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-05 22:01:20,560 INFO L276 IsEmpty]: Start isEmpty. Operand has 349 states, 252 states have (on average 1.5912698412698412) internal successors, (401), 253 states have internal predecessors, (401), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2025-02-05 22:01:20,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2025-02-05 22:01:20,578 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 22:01:20,579 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 22:01:20,579 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 22:01:20,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 22:01:20,587 INFO L85 PathProgramCache]: Analyzing trace with hash -922865900, now seen corresponding path program 1 times [2025-02-05 22:01:20,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 22:01:20,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456469359] [2025-02-05 22:01:20,595 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 22:01:20,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 22:01:20,715 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 622 statements into 1 equivalence classes. [2025-02-05 22:01:20,755 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 622 of 622 statements. [2025-02-05 22:01:20,755 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 22:01:20,756 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 22:01:21,140 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 186 refuted. 0 times theorem prover too weak. 17298 trivial. 0 not checked. [2025-02-05 22:01:21,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 22:01:21,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456469359] [2025-02-05 22:01:21,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456469359] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 22:01:21,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534881924] [2025-02-05 22:01:21,142 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 22:01:21,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 22:01:21,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 22:01:21,146 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 22:01:21,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-05 22:01:21,306 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 622 statements into 1 equivalence classes. [2025-02-05 22:01:21,462 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 622 of 622 statements. [2025-02-05 22:01:21,463 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 22:01:21,463 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 22:01:21,470 INFO L256 TraceCheckSpWp]: Trace formula consists of 1450 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-05 22:01:21,485 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 22:01:21,546 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 17298 trivial. 0 not checked. [2025-02-05 22:01:21,546 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 22:01:21,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534881924] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 22:01:21,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 22:01:21,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-02-05 22:01:21,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122906907] [2025-02-05 22:01:21,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 22:01:21,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-05 22:01:21,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 22:01:21,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-05 22:01:21,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 22:01:21,570 INFO L87 Difference]: Start difference. First operand has 349 states, 252 states have (on average 1.5912698412698412) internal successors, (401), 253 states have internal predecessors, (401), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) Second operand has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 2 states have call successors, (94), 2 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 2 states have call successors, (94) [2025-02-05 22:01:21,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 22:01:21,649 INFO L93 Difference]: Finished difference Result 684 states and 1253 transitions. [2025-02-05 22:01:21,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-05 22:01:21,652 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 2 states have call successors, (94), 2 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 2 states have call successors, (94) Word has length 622 [2025-02-05 22:01:21,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 22:01:21,660 INFO L225 Difference]: With dead ends: 684 [2025-02-05 22:01:21,660 INFO L226 Difference]: Without dead ends: 338 [2025-02-05 22:01:21,664 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 623 GetRequests, 623 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-05 22:01:21,666 INFO L435 NwaCegarLoop]: 552 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 22:01:21,667 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 552 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 22:01:21,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2025-02-05 22:01:21,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 338. [2025-02-05 22:01:21,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 338 states, 242 states have (on average 1.5743801652892562) internal successors, (381), 242 states have internal predecessors, (381), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2025-02-05 22:01:21,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 569 transitions. [2025-02-05 22:01:21,736 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 569 transitions. Word has length 622 [2025-02-05 22:01:21,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 22:01:21,736 INFO L471 AbstractCegarLoop]: Abstraction has 338 states and 569 transitions. [2025-02-05 22:01:21,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 78.5) internal successors, (157), 2 states have internal predecessors, (157), 2 states have call successors, (94), 2 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 2 states have call successors, (94) [2025-02-05 22:01:21,737 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 569 transitions. [2025-02-05 22:01:21,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2025-02-05 22:01:21,749 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 22:01:21,749 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 22:01:21,758 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-05 22:01:21,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2025-02-05 22:01:21,954 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 22:01:21,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 22:01:21,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1847815406, now seen corresponding path program 1 times [2025-02-05 22:01:21,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 22:01:21,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064193891] [2025-02-05 22:01:21,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 22:01:21,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 22:01:21,993 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 622 statements into 1 equivalence classes. [2025-02-05 22:01:22,098 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 622 of 622 statements. [2025-02-05 22:01:22,099 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 22:01:22,099 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 22:01:22,491 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2025-02-05 22:01:22,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 22:01:22,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064193891] [2025-02-05 22:01:22,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064193891] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 22:01:22,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 22:01:22,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 22:01:22,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191797083] [2025-02-05 22:01:22,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 22:01:22,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 22:01:22,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 22:01:22,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 22:01:22,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 22:01:22,498 INFO L87 Difference]: Start difference. First operand 338 states and 569 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 22:01:22,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 22:01:22,669 INFO L93 Difference]: Finished difference Result 895 states and 1514 transitions. [2025-02-05 22:01:22,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 22:01:22,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 622 [2025-02-05 22:01:22,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 22:01:22,678 INFO L225 Difference]: With dead ends: 895 [2025-02-05 22:01:22,679 INFO L226 Difference]: Without dead ends: 560 [2025-02-05 22:01:22,680 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 22:01:22,681 INFO L435 NwaCegarLoop]: 537 mSDtfsCounter, 358 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 358 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 22:01:22,681 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [358 Valid, 1053 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 22:01:22,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2025-02-05 22:01:22,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 557. [2025-02-05 22:01:22,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 428 states have (on average 1.5981308411214954) internal successors, (684), 429 states have internal predecessors, (684), 126 states have call successors, (126), 2 states have call predecessors, (126), 2 states have return successors, (126), 125 states have call predecessors, (126), 126 states have call successors, (126) [2025-02-05 22:01:22,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 936 transitions. [2025-02-05 22:01:22,740 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 936 transitions. Word has length 622 [2025-02-05 22:01:22,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 22:01:22,741 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 936 transitions. [2025-02-05 22:01:22,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 22:01:22,741 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 936 transitions. [2025-02-05 22:01:22,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2025-02-05 22:01:22,749 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 22:01:22,749 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 22:01:22,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-05 22:01:22,749 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 22:01:22,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 22:01:22,750 INFO L85 PathProgramCache]: Analyzing trace with hash -617402638, now seen corresponding path program 1 times [2025-02-05 22:01:22,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 22:01:22,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941307895] [2025-02-05 22:01:22,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 22:01:22,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 22:01:22,785 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 622 statements into 1 equivalence classes. [2025-02-05 22:01:22,840 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 622 of 622 statements. [2025-02-05 22:01:22,840 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 22:01:22,840 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 22:01:23,047 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2025-02-05 22:01:23,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 22:01:23,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941307895] [2025-02-05 22:01:23,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941307895] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 22:01:23,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 22:01:23,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 22:01:23,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968239912] [2025-02-05 22:01:23,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 22:01:23,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 22:01:23,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 22:01:23,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 22:01:23,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 22:01:23,052 INFO L87 Difference]: Start difference. First operand 557 states and 936 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 22:01:23,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 22:01:23,171 INFO L93 Difference]: Finished difference Result 1408 states and 2339 transitions. [2025-02-05 22:01:23,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 22:01:23,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 622 [2025-02-05 22:01:23,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 22:01:23,182 INFO L225 Difference]: With dead ends: 1408 [2025-02-05 22:01:23,183 INFO L226 Difference]: Without dead ends: 854 [2025-02-05 22:01:23,185 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 22:01:23,186 INFO L435 NwaCegarLoop]: 777 mSDtfsCounter, 298 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 1318 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 22:01:23,186 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 1318 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 22:01:23,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2025-02-05 22:01:23,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 851. [2025-02-05 22:01:23,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 603 states have (on average 1.51575456053068) internal successors, (914), 606 states have internal predecessors, (914), 243 states have call successors, (243), 4 states have call predecessors, (243), 4 states have return successors, (243), 240 states have call predecessors, (243), 243 states have call successors, (243) [2025-02-05 22:01:23,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1400 transitions. [2025-02-05 22:01:23,271 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1400 transitions. Word has length 622 [2025-02-05 22:01:23,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 22:01:23,273 INFO L471 AbstractCegarLoop]: Abstraction has 851 states and 1400 transitions. [2025-02-05 22:01:23,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 22:01:23,273 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1400 transitions. [2025-02-05 22:01:23,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2025-02-05 22:01:23,292 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 22:01:23,292 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 22:01:23,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-05 22:01:23,293 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 22:01:23,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 22:01:23,293 INFO L85 PathProgramCache]: Analyzing trace with hash -648422445, now seen corresponding path program 1 times [2025-02-05 22:01:23,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 22:01:23,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243949111] [2025-02-05 22:01:23,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 22:01:23,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 22:01:23,328 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 622 statements into 1 equivalence classes. [2025-02-05 22:01:23,390 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 622 of 622 statements. [2025-02-05 22:01:23,390 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 22:01:23,390 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 22:01:23,748 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2025-02-05 22:01:23,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 22:01:23,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243949111] [2025-02-05 22:01:23,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243949111] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 22:01:23,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 22:01:23,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 22:01:23,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799964371] [2025-02-05 22:01:23,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 22:01:23,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 22:01:23,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 22:01:23,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 22:01:23,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-05 22:01:23,755 INFO L87 Difference]: Start difference. First operand 851 states and 1400 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) [2025-02-05 22:01:23,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 22:01:23,916 INFO L93 Difference]: Finished difference Result 2266 states and 3720 transitions. [2025-02-05 22:01:23,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 22:01:23,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) Word has length 622 [2025-02-05 22:01:23,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 22:01:23,925 INFO L225 Difference]: With dead ends: 2266 [2025-02-05 22:01:23,925 INFO L226 Difference]: Without dead ends: 1418 [2025-02-05 22:01:23,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-05 22:01:23,929 INFO L435 NwaCegarLoop]: 550 mSDtfsCounter, 518 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 1612 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 22:01:23,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 1612 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 22:01:23,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2025-02-05 22:01:24,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1416. [2025-02-05 22:01:24,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 985 states have (on average 1.498477157360406) internal successors, (1476), 989 states have internal predecessors, (1476), 422 states have call successors, (422), 8 states have call predecessors, (422), 8 states have return successors, (422), 418 states have call predecessors, (422), 422 states have call successors, (422) [2025-02-05 22:01:24,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 2320 transitions. [2025-02-05 22:01:24,051 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 2320 transitions. Word has length 622 [2025-02-05 22:01:24,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 22:01:24,052 INFO L471 AbstractCegarLoop]: Abstraction has 1416 states and 2320 transitions. [2025-02-05 22:01:24,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 2 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 2 states have call predecessors, (94), 2 states have call successors, (94) [2025-02-05 22:01:24,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 2320 transitions. [2025-02-05 22:01:24,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2025-02-05 22:01:24,057 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 22:01:24,057 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 22:01:24,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-05 22:01:24,057 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 22:01:24,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 22:01:24,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1471864754, now seen corresponding path program 1 times [2025-02-05 22:01:24,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 22:01:24,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415381332] [2025-02-05 22:01:24,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 22:01:24,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 22:01:24,094 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 622 statements into 1 equivalence classes. [2025-02-05 22:01:24,150 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 622 of 622 statements. [2025-02-05 22:01:24,150 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 22:01:24,150 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 22:01:24,399 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2025-02-05 22:01:24,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 22:01:24,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415381332] [2025-02-05 22:01:24,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415381332] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 22:01:24,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 22:01:24,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 22:01:24,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767464917] [2025-02-05 22:01:24,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 22:01:24,401 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 22:01:24,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 22:01:24,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 22:01:24,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 22:01:24,402 INFO L87 Difference]: Start difference. First operand 1416 states and 2320 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 22:01:24,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 22:01:24,929 INFO L93 Difference]: Finished difference Result 3703 states and 6041 transitions. [2025-02-05 22:01:24,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 22:01:24,929 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 622 [2025-02-05 22:01:24,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 22:01:24,944 INFO L225 Difference]: With dead ends: 3703 [2025-02-05 22:01:24,944 INFO L226 Difference]: Without dead ends: 2290 [2025-02-05 22:01:24,950 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-05 22:01:24,951 INFO L435 NwaCegarLoop]: 597 mSDtfsCounter, 811 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-05 22:01:24,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 1378 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-05 22:01:24,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2290 states. [2025-02-05 22:01:25,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2290 to 2281. [2025-02-05 22:01:25,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2281 states, 1647 states have (on average 1.5088038858530661) internal successors, (2485), 1658 states have internal predecessors, (2485), 614 states have call successors, (614), 19 states have call predecessors, (614), 19 states have return successors, (614), 603 states have call predecessors, (614), 614 states have call successors, (614) [2025-02-05 22:01:25,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2281 states to 2281 states and 3713 transitions. [2025-02-05 22:01:25,092 INFO L78 Accepts]: Start accepts. Automaton has 2281 states and 3713 transitions. Word has length 622 [2025-02-05 22:01:25,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 22:01:25,094 INFO L471 AbstractCegarLoop]: Abstraction has 2281 states and 3713 transitions. [2025-02-05 22:01:25,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 22:01:25,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2281 states and 3713 transitions. [2025-02-05 22:01:25,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2025-02-05 22:01:25,099 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 22:01:25,100 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 22:01:25,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-05 22:01:25,101 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 22:01:25,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 22:01:25,101 INFO L85 PathProgramCache]: Analyzing trace with hash -228875725, now seen corresponding path program 1 times [2025-02-05 22:01:25,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 22:01:25,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553952819] [2025-02-05 22:01:25,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 22:01:25,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 22:01:25,138 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 622 statements into 1 equivalence classes. [2025-02-05 22:01:25,182 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 622 of 622 statements. [2025-02-05 22:01:25,183 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 22:01:25,183 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 22:01:25,555 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2025-02-05 22:01:25,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 22:01:25,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553952819] [2025-02-05 22:01:25,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553952819] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 22:01:25,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 22:01:25,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 22:01:25,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504436006] [2025-02-05 22:01:25,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 22:01:25,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 22:01:25,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 22:01:25,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 22:01:25,557 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-05 22:01:25,557 INFO L87 Difference]: Start difference. First operand 2281 states and 3713 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 22:01:26,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 22:01:26,163 INFO L93 Difference]: Finished difference Result 8407 states and 13699 transitions. [2025-02-05 22:01:26,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 22:01:26,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 622 [2025-02-05 22:01:26,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 22:01:26,201 INFO L225 Difference]: With dead ends: 8407 [2025-02-05 22:01:26,201 INFO L226 Difference]: Without dead ends: 6191 [2025-02-05 22:01:26,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-05 22:01:26,210 INFO L435 NwaCegarLoop]: 577 mSDtfsCounter, 683 mSDsluCounter, 1084 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-05 22:01:26,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [683 Valid, 1661 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-05 22:01:26,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6191 states. [2025-02-05 22:01:26,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6191 to 4831. [2025-02-05 22:01:26,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4831 states, 3638 states have (on average 1.5464540956569544) internal successors, (5626), 3658 states have internal predecessors, (5626), 1156 states have call successors, (1156), 36 states have call predecessors, (1156), 36 states have return successors, (1156), 1136 states have call predecessors, (1156), 1156 states have call successors, (1156) [2025-02-05 22:01:26,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4831 states to 4831 states and 7938 transitions. [2025-02-05 22:01:26,532 INFO L78 Accepts]: Start accepts. Automaton has 4831 states and 7938 transitions. Word has length 622 [2025-02-05 22:01:26,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 22:01:26,534 INFO L471 AbstractCegarLoop]: Abstraction has 4831 states and 7938 transitions. [2025-02-05 22:01:26,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 22:01:26,534 INFO L276 IsEmpty]: Start isEmpty. Operand 4831 states and 7938 transitions. [2025-02-05 22:01:26,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2025-02-05 22:01:26,540 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 22:01:26,541 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 22:01:26,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-02-05 22:01:26,541 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 22:01:26,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 22:01:26,541 INFO L85 PathProgramCache]: Analyzing trace with hash 100890036, now seen corresponding path program 1 times [2025-02-05 22:01:26,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 22:01:26,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122276356] [2025-02-05 22:01:26,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 22:01:26,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 22:01:26,572 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 622 statements into 1 equivalence classes. [2025-02-05 22:01:26,636 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 622 of 622 statements. [2025-02-05 22:01:26,636 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 22:01:26,636 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 22:01:26,940 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2025-02-05 22:01:26,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 22:01:26,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122276356] [2025-02-05 22:01:26,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122276356] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 22:01:26,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 22:01:26,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 22:01:26,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381740062] [2025-02-05 22:01:26,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 22:01:26,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 22:01:26,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 22:01:26,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 22:01:26,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-02-05 22:01:26,943 INFO L87 Difference]: Start difference. First operand 4831 states and 7938 transitions. Second operand has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 22:01:28,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 22:01:28,195 INFO L93 Difference]: Finished difference Result 17879 states and 29220 transitions. [2025-02-05 22:01:28,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 22:01:28,196 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 622 [2025-02-05 22:01:28,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 22:01:28,260 INFO L225 Difference]: With dead ends: 17879 [2025-02-05 22:01:28,261 INFO L226 Difference]: Without dead ends: 13051 [2025-02-05 22:01:28,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-02-05 22:01:28,279 INFO L435 NwaCegarLoop]: 866 mSDtfsCounter, 1131 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 391 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 2116 SdHoareTripleChecker+Invalid, 692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 391 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-05 22:01:28,279 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1131 Valid, 2116 Invalid, 692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [391 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-05 22:01:28,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13051 states. [2025-02-05 22:01:28,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13051 to 13039. [2025-02-05 22:01:28,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13039 states, 9658 states have (on average 1.5240215365500103) internal successors, (14719), 9722 states have internal predecessors, (14719), 3272 states have call successors, (3272), 108 states have call predecessors, (3272), 108 states have return successors, (3272), 3208 states have call predecessors, (3272), 3272 states have call successors, (3272) [2025-02-05 22:01:28,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13039 states to 13039 states and 21263 transitions. [2025-02-05 22:01:28,994 INFO L78 Accepts]: Start accepts. Automaton has 13039 states and 21263 transitions. Word has length 622 [2025-02-05 22:01:28,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 22:01:28,995 INFO L471 AbstractCegarLoop]: Abstraction has 13039 states and 21263 transitions. [2025-02-05 22:01:28,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 22:01:28,997 INFO L276 IsEmpty]: Start isEmpty. Operand 13039 states and 21263 transitions. [2025-02-05 22:01:29,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2025-02-05 22:01:29,008 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 22:01:29,008 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 22:01:29,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-02-05 22:01:29,008 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 22:01:29,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 22:01:29,009 INFO L85 PathProgramCache]: Analyzing trace with hash 2051190291, now seen corresponding path program 1 times [2025-02-05 22:01:29,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 22:01:29,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575763844] [2025-02-05 22:01:29,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 22:01:29,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 22:01:29,041 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 622 statements into 1 equivalence classes. [2025-02-05 22:01:29,073 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 622 of 622 statements. [2025-02-05 22:01:29,074 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 22:01:29,074 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 22:01:29,323 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2025-02-05 22:01:29,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 22:01:29,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575763844] [2025-02-05 22:01:29,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575763844] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 22:01:29,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 22:01:29,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 22:01:29,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502308280] [2025-02-05 22:01:29,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 22:01:29,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 22:01:29,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 22:01:29,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 22:01:29,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 22:01:29,325 INFO L87 Difference]: Start difference. First operand 13039 states and 21263 transitions. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 22:01:29,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 22:01:29,921 INFO L93 Difference]: Finished difference Result 26075 states and 42523 transitions. [2025-02-05 22:01:29,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 22:01:29,922 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 622 [2025-02-05 22:01:29,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 22:01:29,986 INFO L225 Difference]: With dead ends: 26075 [2025-02-05 22:01:29,987 INFO L226 Difference]: Without dead ends: 13039 [2025-02-05 22:01:30,031 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 22:01:30,032 INFO L435 NwaCegarLoop]: 549 mSDtfsCounter, 0 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1640 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 22:01:30,032 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1640 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 22:01:30,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13039 states. [2025-02-05 22:01:30,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13039 to 13039. [2025-02-05 22:01:30,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13039 states, 9658 states have (on average 1.5165665769310417) internal successors, (14647), 9722 states have internal predecessors, (14647), 3272 states have call successors, (3272), 108 states have call predecessors, (3272), 108 states have return successors, (3272), 3208 states have call predecessors, (3272), 3272 states have call successors, (3272) [2025-02-05 22:01:30,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13039 states to 13039 states and 21191 transitions. [2025-02-05 22:01:30,774 INFO L78 Accepts]: Start accepts. Automaton has 13039 states and 21191 transitions. Word has length 622 [2025-02-05 22:01:30,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 22:01:30,775 INFO L471 AbstractCegarLoop]: Abstraction has 13039 states and 21191 transitions. [2025-02-05 22:01:30,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 22:01:30,775 INFO L276 IsEmpty]: Start isEmpty. Operand 13039 states and 21191 transitions. [2025-02-05 22:01:30,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2025-02-05 22:01:30,785 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 22:01:30,786 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 22:01:30,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-02-05 22:01:30,786 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 22:01:30,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 22:01:30,786 INFO L85 PathProgramCache]: Analyzing trace with hash 557780986, now seen corresponding path program 1 times [2025-02-05 22:01:30,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 22:01:30,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431590306] [2025-02-05 22:01:30,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 22:01:30,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 22:01:30,818 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 623 statements into 1 equivalence classes. [2025-02-05 22:01:30,852 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 623 of 623 statements. [2025-02-05 22:01:30,852 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 22:01:30,852 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 22:01:31,055 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2025-02-05 22:01:31,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 22:01:31,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431590306] [2025-02-05 22:01:31,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431590306] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 22:01:31,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 22:01:31,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 22:01:31,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617194691] [2025-02-05 22:01:31,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 22:01:31,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 22:01:31,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 22:01:31,057 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 22:01:31,057 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-05 22:01:31,057 INFO L87 Difference]: Start difference. First operand 13039 states and 21191 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 22:01:32,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 22:01:32,932 INFO L93 Difference]: Finished difference Result 47462 states and 76855 transitions. [2025-02-05 22:01:32,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 22:01:32,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 623 [2025-02-05 22:01:32,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 22:01:33,084 INFO L225 Difference]: With dead ends: 47462 [2025-02-05 22:01:33,085 INFO L226 Difference]: Without dead ends: 34426 [2025-02-05 22:01:33,137 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-02-05 22:01:33,137 INFO L435 NwaCegarLoop]: 532 mSDtfsCounter, 1539 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1539 SdHoareTripleChecker+Valid, 2101 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-02-05 22:01:33,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1539 Valid, 2101 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-02-05 22:01:33,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34426 states. [2025-02-05 22:01:34,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34426 to 13933. [2025-02-05 22:01:34,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13933 states, 10552 states have (on average 1.5323161485974224) internal successors, (16169), 10616 states have internal predecessors, (16169), 3272 states have call successors, (3272), 108 states have call predecessors, (3272), 108 states have return successors, (3272), 3208 states have call predecessors, (3272), 3272 states have call successors, (3272) [2025-02-05 22:01:34,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13933 states to 13933 states and 22713 transitions. [2025-02-05 22:01:34,414 INFO L78 Accepts]: Start accepts. Automaton has 13933 states and 22713 transitions. Word has length 623 [2025-02-05 22:01:34,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 22:01:34,415 INFO L471 AbstractCegarLoop]: Abstraction has 13933 states and 22713 transitions. [2025-02-05 22:01:34,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 5 states have internal predecessors, (156), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 22:01:34,416 INFO L276 IsEmpty]: Start isEmpty. Operand 13933 states and 22713 transitions. [2025-02-05 22:01:34,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2025-02-05 22:01:34,428 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 22:01:34,428 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 22:01:34,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-02-05 22:01:34,428 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 22:01:34,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 22:01:34,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1690971579, now seen corresponding path program 1 times [2025-02-05 22:01:34,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 22:01:34,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994271352] [2025-02-05 22:01:34,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 22:01:34,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 22:01:34,460 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 623 statements into 1 equivalence classes. [2025-02-05 22:01:34,493 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 623 of 623 statements. [2025-02-05 22:01:34,495 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 22:01:34,495 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 22:01:34,817 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2025-02-05 22:01:34,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 22:01:34,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994271352] [2025-02-05 22:01:34,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994271352] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 22:01:34,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 22:01:34,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 22:01:34,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481168779] [2025-02-05 22:01:34,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 22:01:34,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 22:01:34,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 22:01:34,818 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 22:01:34,819 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 22:01:34,819 INFO L87 Difference]: Start difference. First operand 13933 states and 22713 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 22:01:35,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 22:01:35,799 INFO L93 Difference]: Finished difference Result 41793 states and 68133 transitions. [2025-02-05 22:01:35,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 22:01:35,800 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 623 [2025-02-05 22:01:35,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 22:01:35,913 INFO L225 Difference]: With dead ends: 41793 [2025-02-05 22:01:35,914 INFO L226 Difference]: Without dead ends: 27863 [2025-02-05 22:01:35,949 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 22:01:35,950 INFO L435 NwaCegarLoop]: 550 mSDtfsCounter, 368 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 22:01:35,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 1095 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 22:01:35,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27863 states. [2025-02-05 22:01:37,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27863 to 27861. [2025-02-05 22:01:37,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27861 states, 21100 states have (on average 1.5301421800947868) internal successors, (32286), 21228 states have internal predecessors, (32286), 6544 states have call successors, (6544), 216 states have call predecessors, (6544), 216 states have return successors, (6544), 6416 states have call predecessors, (6544), 6544 states have call successors, (6544) [2025-02-05 22:01:37,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27861 states to 27861 states and 45374 transitions. [2025-02-05 22:01:37,755 INFO L78 Accepts]: Start accepts. Automaton has 27861 states and 45374 transitions. Word has length 623 [2025-02-05 22:01:37,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 22:01:37,756 INFO L471 AbstractCegarLoop]: Abstraction has 27861 states and 45374 transitions. [2025-02-05 22:01:37,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 22:01:37,756 INFO L276 IsEmpty]: Start isEmpty. Operand 27861 states and 45374 transitions. [2025-02-05 22:01:37,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2025-02-05 22:01:37,781 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 22:01:37,781 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 22:01:37,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-02-05 22:01:37,782 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 22:01:37,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 22:01:37,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1683212220, now seen corresponding path program 1 times [2025-02-05 22:01:37,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 22:01:37,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669164921] [2025-02-05 22:01:37,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 22:01:37,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 22:01:37,818 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 623 statements into 1 equivalence classes. [2025-02-05 22:01:37,860 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 623 of 623 statements. [2025-02-05 22:01:37,861 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 22:01:37,861 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 22:01:38,277 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2025-02-05 22:01:38,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 22:01:38,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669164921] [2025-02-05 22:01:38,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669164921] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 22:01:38,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 22:01:38,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 22:01:38,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898609569] [2025-02-05 22:01:38,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 22:01:38,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 22:01:38,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 22:01:38,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 22:01:38,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 22:01:38,279 INFO L87 Difference]: Start difference. First operand 27861 states and 45374 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 22:01:40,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 22:01:40,115 INFO L93 Difference]: Finished difference Result 68281 states and 111522 transitions. [2025-02-05 22:01:40,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 22:01:40,116 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 623 [2025-02-05 22:01:40,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 22:01:40,243 INFO L225 Difference]: With dead ends: 68281 [2025-02-05 22:01:40,243 INFO L226 Difference]: Without dead ends: 40423 [2025-02-05 22:01:40,297 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-05 22:01:40,298 INFO L435 NwaCegarLoop]: 540 mSDtfsCounter, 580 mSDsluCounter, 1075 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 1615 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-02-05 22:01:40,299 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 1615 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-02-05 22:01:40,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40423 states. [2025-02-05 22:01:41,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40423 to 38261. [2025-02-05 22:01:41,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38261 states, 31402 states have (on average 1.578307114196548) internal successors, (49562), 31530 states have internal predecessors, (49562), 6638 states have call successors, (6638), 220 states have call predecessors, (6638), 220 states have return successors, (6638), 6510 states have call predecessors, (6638), 6638 states have call successors, (6638) [2025-02-05 22:01:41,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38261 states to 38261 states and 62838 transitions. [2025-02-05 22:01:41,831 INFO L78 Accepts]: Start accepts. Automaton has 38261 states and 62838 transitions. Word has length 623 [2025-02-05 22:01:41,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 22:01:41,832 INFO L471 AbstractCegarLoop]: Abstraction has 38261 states and 62838 transitions. [2025-02-05 22:01:41,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 22:01:41,832 INFO L276 IsEmpty]: Start isEmpty. Operand 38261 states and 62838 transitions. [2025-02-05 22:01:41,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2025-02-05 22:01:41,850 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 22:01:41,850 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 22:01:41,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-02-05 22:01:41,851 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 22:01:41,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 22:01:41,852 INFO L85 PathProgramCache]: Analyzing trace with hash 288726040, now seen corresponding path program 1 times [2025-02-05 22:01:41,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 22:01:41,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264220502] [2025-02-05 22:01:41,852 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 22:01:41,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 22:01:41,880 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 624 statements into 1 equivalence classes. [2025-02-05 22:01:41,912 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 624 of 624 statements. [2025-02-05 22:01:41,912 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 22:01:41,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 22:01:42,297 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2025-02-05 22:01:42,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 22:01:42,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264220502] [2025-02-05 22:01:42,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264220502] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 22:01:42,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 22:01:42,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 22:01:42,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207549] [2025-02-05 22:01:42,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 22:01:42,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 22:01:42,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 22:01:42,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 22:01:42,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 22:01:42,300 INFO L87 Difference]: Start difference. First operand 38261 states and 62838 transitions. Second operand has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 22:01:45,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 22:01:45,000 INFO L93 Difference]: Finished difference Result 99163 states and 161213 transitions. [2025-02-05 22:01:45,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 22:01:45,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 624 [2025-02-05 22:01:45,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 22:01:45,244 INFO L225 Difference]: With dead ends: 99163 [2025-02-05 22:01:45,244 INFO L226 Difference]: Without dead ends: 69145 [2025-02-05 22:01:45,345 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-02-05 22:01:45,346 INFO L435 NwaCegarLoop]: 562 mSDtfsCounter, 618 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 618 SdHoareTripleChecker+Valid, 1641 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-02-05 22:01:45,347 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [618 Valid, 1641 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-02-05 22:01:45,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69145 states. [2025-02-05 22:01:48,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69145 to 67125. [2025-02-05 22:01:48,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67125 states, 53506 states have (on average 1.5484618547452622) internal successors, (82852), 53762 states have internal predecessors, (82852), 13182 states have call successors, (13182), 436 states have call predecessors, (13182), 436 states have return successors, (13182), 12926 states have call predecessors, (13182), 13182 states have call successors, (13182) [2025-02-05 22:01:48,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67125 states to 67125 states and 109216 transitions. [2025-02-05 22:01:48,988 INFO L78 Accepts]: Start accepts. Automaton has 67125 states and 109216 transitions. Word has length 624 [2025-02-05 22:01:48,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 22:01:48,989 INFO L471 AbstractCegarLoop]: Abstraction has 67125 states and 109216 transitions. [2025-02-05 22:01:48,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.25) internal successors, (157), 4 states have internal predecessors, (157), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2025-02-05 22:01:48,989 INFO L276 IsEmpty]: Start isEmpty. Operand 67125 states and 109216 transitions. [2025-02-05 22:01:49,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2025-02-05 22:01:49,014 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 22:01:49,015 INFO L218 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 22:01:49,015 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-02-05 22:01:49,015 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 22:01:49,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 22:01:49,015 INFO L85 PathProgramCache]: Analyzing trace with hash 701198809, now seen corresponding path program 1 times [2025-02-05 22:01:49,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 22:01:49,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895179765] [2025-02-05 22:01:49,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 22:01:49,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 22:01:49,050 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 625 statements into 1 equivalence classes. [2025-02-05 22:01:49,086 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 625 of 625 statements. [2025-02-05 22:01:49,086 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 22:01:49,086 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 22:01:49,472 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2025-02-05 22:01:49,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 22:01:49,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895179765] [2025-02-05 22:01:49,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895179765] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 22:01:49,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 22:01:49,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-02-05 22:01:49,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811135353] [2025-02-05 22:01:49,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 22:01:49,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-02-05 22:01:49,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 22:01:49,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-02-05 22:01:49,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-02-05 22:01:49,474 INFO L87 Difference]: Start difference. First operand 67125 states and 109216 transitions. Second operand has 7 states, 7 states have (on average 22.571428571428573) internal successors, (158), 7 states have internal predecessors, (158), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94)