./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d16_e0.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d16_e0.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 64bit --witnessprinter.graph.data.programhash 222be94abfdbb514b1917b4bfb3a2a13389b64e1e049c782003790d790f6753f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 06:05:09,546 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 06:05:09,618 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-14 06:05:09,622 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 06:05:09,623 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 06:05:09,652 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 06:05:09,652 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 06:05:09,653 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 06:05:09,653 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 06:05:09,654 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 06:05:09,654 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 06:05:09,655 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 06:05:09,655 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 06:05:09,656 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 06:05:09,656 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 06:05:09,656 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 06:05:09,657 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 06:05:09,657 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 06:05:09,657 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 06:05:09,658 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 06:05:09,658 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 06:05:09,659 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 06:05:09,659 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 06:05:09,659 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 06:05:09,659 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 06:05:09,660 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 06:05:09,660 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 06:05:09,660 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 06:05:09,661 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 06:05:09,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 06:05:09,661 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 06:05:09,662 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 06:05:09,662 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 06:05:09,662 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 06:05:09,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 06:05:09,663 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 06:05:09,663 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 06:05:09,664 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 06:05:09,664 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 06:05:09,664 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 222be94abfdbb514b1917b4bfb3a2a13389b64e1e049c782003790d790f6753f [2024-10-14 06:05:09,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 06:05:09,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 06:05:09,968 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 06:05:09,971 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 06:05:09,972 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 06:05:09,973 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d16_e0.c [2024-10-14 06:05:11,550 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 06:05:11,846 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 06:05:11,846 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d16_e0.c [2024-10-14 06:05:11,861 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9155e8dfe/11b68140941c4cafa1b8fa4690538cb7/FLAGd7f6b6134 [2024-10-14 06:05:11,876 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9155e8dfe/11b68140941c4cafa1b8fa4690538cb7 [2024-10-14 06:05:11,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 06:05:11,882 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 06:05:11,884 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 06:05:11,884 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 06:05:11,890 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 06:05:11,891 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:05:11" (1/1) ... [2024-10-14 06:05:11,892 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cbffb8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:05:11, skipping insertion in model container [2024-10-14 06:05:11,892 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:05:11" (1/1) ... [2024-10-14 06:05:11,962 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 06:05:12,167 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d16_e0.c[1280,1293] [2024-10-14 06:05:12,497 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 06:05:12,509 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 06:05:12,525 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d16_e0.c[1280,1293] [2024-10-14 06:05:12,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 06:05:12,700 INFO L204 MainTranslator]: Completed translation [2024-10-14 06:05:12,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:05:12 WrapperNode [2024-10-14 06:05:12,702 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 06:05:12,703 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 06:05:12,703 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 06:05:12,704 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 06:05:12,710 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:05:12" (1/1) ... [2024-10-14 06:05:12,761 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:05:12" (1/1) ... [2024-10-14 06:05:12,968 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1977 [2024-10-14 06:05:12,969 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 06:05:12,970 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 06:05:12,970 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 06:05:12,970 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 06:05:12,982 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:05:12" (1/1) ... [2024-10-14 06:05:12,982 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:05:12" (1/1) ... [2024-10-14 06:05:13,149 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:05:12" (1/1) ... [2024-10-14 06:05:13,268 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]. [2024-10-14 06:05:13,268 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:05:12" (1/1) ... [2024-10-14 06:05:13,269 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:05:12" (1/1) ... [2024-10-14 06:05:13,336 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:05:12" (1/1) ... [2024-10-14 06:05:13,365 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:05:12" (1/1) ... [2024-10-14 06:05:13,382 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:05:12" (1/1) ... [2024-10-14 06:05:13,403 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:05:12" (1/1) ... [2024-10-14 06:05:13,454 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 06:05:13,455 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 06:05:13,456 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 06:05:13,457 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 06:05:13,458 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:05:12" (1/1) ... [2024-10-14 06:05:13,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 06:05:13,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 06:05:13,496 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 06:05:13,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 06:05:13,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 06:05:13,552 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 06:05:13,552 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 06:05:13,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 06:05:13,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 06:05:13,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 06:05:13,868 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 06:05:13,870 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 06:05:16,131 INFO L? ?]: Removed 1091 outVars from TransFormulas that were not future-live. [2024-10-14 06:05:16,132 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 06:05:16,225 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 06:05:16,229 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 06:05:16,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:05:16 BoogieIcfgContainer [2024-10-14 06:05:16,230 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 06:05:16,232 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 06:05:16,232 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 06:05:16,236 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 06:05:16,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 06:05:11" (1/3) ... [2024-10-14 06:05:16,237 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c53954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:05:16, skipping insertion in model container [2024-10-14 06:05:16,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:05:12" (2/3) ... [2024-10-14 06:05:16,238 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c53954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:05:16, skipping insertion in model container [2024-10-14 06:05:16,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:05:16" (3/3) ... [2024-10-14 06:05:16,240 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w16_d16_e0.c [2024-10-14 06:05:16,257 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 06:05:16,258 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 06:05:16,351 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 06:05:16,362 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;@ef5a124, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 06:05:16,363 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 06:05:16,371 INFO L276 IsEmpty]: Start isEmpty. Operand has 549 states, 543 states have (on average 1.4972375690607735) internal successors, (813), 544 states have internal predecessors, (813), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:16,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-14 06:05:16,396 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:16,397 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:16,397 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:16,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:16,405 INFO L85 PathProgramCache]: Analyzing trace with hash -185767001, now seen corresponding path program 1 times [2024-10-14 06:05:16,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:16,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112837290] [2024-10-14 06:05:16,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:16,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:16,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:16,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:16,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:05:16,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:16,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:05:16,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:16,972 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:16,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:16,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112837290] [2024-10-14 06:05:16,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112837290] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:16,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:16,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 06:05:16,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005014866] [2024-10-14 06:05:16,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:16,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 06:05:16,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:17,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 06:05:17,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 06:05:17,019 INFO L87 Difference]: Start difference. First operand has 549 states, 543 states have (on average 1.4972375690607735) internal successors, (813), 544 states have internal predecessors, (813), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 68.0) internal successors, (136), 2 states have internal predecessors, (136), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 06:05:17,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:17,102 INFO L93 Difference]: Finished difference Result 996 states and 1490 transitions. [2024-10-14 06:05:17,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 06:05:17,108 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 68.0) internal successors, (136), 2 states have internal predecessors, (136), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 148 [2024-10-14 06:05:17,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:17,123 INFO L225 Difference]: With dead ends: 996 [2024-10-14 06:05:17,123 INFO L226 Difference]: Without dead ends: 548 [2024-10-14 06:05:17,130 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 06:05:17,137 INFO L432 NwaCegarLoop]: 815 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:17,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 815 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:05:17,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2024-10-14 06:05:17,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2024-10-14 06:05:17,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 543 states have (on average 1.4917127071823204) internal successors, (810), 543 states have internal predecessors, (810), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:17,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 816 transitions. [2024-10-14 06:05:17,228 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 816 transitions. Word has length 148 [2024-10-14 06:05:17,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:17,229 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 816 transitions. [2024-10-14 06:05:17,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 68.0) internal successors, (136), 2 states have internal predecessors, (136), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 06:05:17,229 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 816 transitions. [2024-10-14 06:05:17,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-10-14 06:05:17,235 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:17,235 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:17,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 06:05:17,235 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:17,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:17,241 INFO L85 PathProgramCache]: Analyzing trace with hash 386034401, now seen corresponding path program 1 times [2024-10-14 06:05:17,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:17,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336219803] [2024-10-14 06:05:17,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:17,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:17,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:18,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:18,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:18,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:05:18,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:18,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:05:18,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:18,629 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:18,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:18,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336219803] [2024-10-14 06:05:18,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336219803] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:18,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:18,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:05:18,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227930796] [2024-10-14 06:05:18,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:18,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 06:05:18,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:18,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 06:05:18,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:05:18,637 INFO L87 Difference]: Start difference. First operand 548 states and 816 transitions. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:18,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:18,694 INFO L93 Difference]: Finished difference Result 552 states and 820 transitions. [2024-10-14 06:05:18,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:18,695 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 148 [2024-10-14 06:05:18,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:18,702 INFO L225 Difference]: With dead ends: 552 [2024-10-14 06:05:18,703 INFO L226 Difference]: Without dead ends: 550 [2024-10-14 06:05:18,703 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:05:18,706 INFO L432 NwaCegarLoop]: 813 mSDtfsCounter, 0 mSDsluCounter, 1621 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2434 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:18,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2434 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:05:18,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-10-14 06:05:18,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-10-14 06:05:18,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.489908256880734) internal successors, (812), 545 states have internal predecessors, (812), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:18,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 818 transitions. [2024-10-14 06:05:18,744 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 818 transitions. Word has length 148 [2024-10-14 06:05:18,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:18,747 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 818 transitions. [2024-10-14 06:05:18,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:18,749 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 818 transitions. [2024-10-14 06:05:18,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-10-14 06:05:18,754 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:18,755 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:18,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 06:05:18,755 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:18,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:18,756 INFO L85 PathProgramCache]: Analyzing trace with hash -916139479, now seen corresponding path program 1 times [2024-10-14 06:05:18,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:18,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955088248] [2024-10-14 06:05:18,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:18,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:18,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:19,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:19,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:19,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:05:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:19,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:05:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:19,424 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:19,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:19,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955088248] [2024-10-14 06:05:19,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955088248] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:19,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:19,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:19,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160061519] [2024-10-14 06:05:19,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:19,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:19,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:19,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:19,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:19,429 INFO L87 Difference]: Start difference. First operand 550 states and 818 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:19,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:19,983 INFO L93 Difference]: Finished difference Result 1370 states and 2040 transitions. [2024-10-14 06:05:19,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 06:05:19,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 149 [2024-10-14 06:05:19,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:19,987 INFO L225 Difference]: With dead ends: 1370 [2024-10-14 06:05:19,987 INFO L226 Difference]: Without dead ends: 550 [2024-10-14 06:05:19,989 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-14 06:05:19,990 INFO L432 NwaCegarLoop]: 859 mSDtfsCounter, 1618 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1618 SdHoareTripleChecker+Valid, 2346 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:19,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1618 Valid, 2346 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 06:05:19,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-10-14 06:05:20,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2024-10-14 06:05:20,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 545 states have (on average 1.4880733944954128) internal successors, (811), 545 states have internal predecessors, (811), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:20,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 817 transitions. [2024-10-14 06:05:20,005 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 817 transitions. Word has length 149 [2024-10-14 06:05:20,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:20,005 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 817 transitions. [2024-10-14 06:05:20,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:20,006 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 817 transitions. [2024-10-14 06:05:20,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-10-14 06:05:20,008 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:20,008 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:20,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 06:05:20,009 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:20,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:20,009 INFO L85 PathProgramCache]: Analyzing trace with hash -2116961565, now seen corresponding path program 1 times [2024-10-14 06:05:20,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:20,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70816788] [2024-10-14 06:05:20,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:20,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:20,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:20,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:20,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:05:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:20,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:05:20,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:20,584 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:20,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:20,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70816788] [2024-10-14 06:05:20,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70816788] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:20,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:20,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:05:20,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362423405] [2024-10-14 06:05:20,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:20,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 06:05:20,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:20,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 06:05:20,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:05:20,627 INFO L87 Difference]: Start difference. First operand 550 states and 817 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:20,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:20,668 INFO L93 Difference]: Finished difference Result 1001 states and 1486 transitions. [2024-10-14 06:05:20,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:20,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 150 [2024-10-14 06:05:20,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:20,673 INFO L225 Difference]: With dead ends: 1001 [2024-10-14 06:05:20,673 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:05:20,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:05:20,675 INFO L432 NwaCegarLoop]: 812 mSDtfsCounter, 0 mSDsluCounter, 1616 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2428 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:20,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2428 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:05:20,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:05:20,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:05:20,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4862888482632541) internal successors, (813), 547 states have internal predecessors, (813), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:20,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 819 transitions. [2024-10-14 06:05:20,693 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 819 transitions. Word has length 150 [2024-10-14 06:05:20,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:20,694 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 819 transitions. [2024-10-14 06:05:20,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:20,695 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 819 transitions. [2024-10-14 06:05:20,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-10-14 06:05:20,697 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:20,697 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:20,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 06:05:20,698 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:20,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:20,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1995703104, now seen corresponding path program 1 times [2024-10-14 06:05:20,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:20,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365679088] [2024-10-14 06:05:20,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:20,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:20,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:21,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:21,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:05:21,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:21,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:05:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:21,329 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:21,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:21,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365679088] [2024-10-14 06:05:21,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365679088] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:21,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:21,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:05:21,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261001146] [2024-10-14 06:05:21,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:21,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 06:05:21,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:21,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 06:05:21,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:05:21,331 INFO L87 Difference]: Start difference. First operand 552 states and 819 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:21,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:21,492 INFO L93 Difference]: Finished difference Result 1003 states and 1487 transitions. [2024-10-14 06:05:21,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:21,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 151 [2024-10-14 06:05:21,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:21,496 INFO L225 Difference]: With dead ends: 1003 [2024-10-14 06:05:21,496 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:05:21,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:21,500 INFO L432 NwaCegarLoop]: 772 mSDtfsCounter, 702 mSDsluCounter, 774 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 1546 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:21,500 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 1546 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:21,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:05:21,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:05:21,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4844606946983547) internal successors, (812), 547 states have internal predecessors, (812), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:21,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 818 transitions. [2024-10-14 06:05:21,516 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 818 transitions. Word has length 151 [2024-10-14 06:05:21,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:21,518 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 818 transitions. [2024-10-14 06:05:21,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:21,518 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 818 transitions. [2024-10-14 06:05:21,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-10-14 06:05:21,522 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:21,522 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:21,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 06:05:21,523 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:21,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:21,524 INFO L85 PathProgramCache]: Analyzing trace with hash -334083056, now seen corresponding path program 1 times [2024-10-14 06:05:21,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:21,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815400802] [2024-10-14 06:05:21,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:21,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:21,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:21,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:21,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:21,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:05:21,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:21,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:05:22,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:22,002 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:22,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:22,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815400802] [2024-10-14 06:05:22,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815400802] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:22,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:22,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:22,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051647799] [2024-10-14 06:05:22,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:22,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:22,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:22,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:22,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:22,005 INFO L87 Difference]: Start difference. First operand 552 states and 818 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:22,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:22,112 INFO L93 Difference]: Finished difference Result 1009 states and 1493 transitions. [2024-10-14 06:05:22,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 06:05:22,113 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 152 [2024-10-14 06:05:22,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:22,116 INFO L225 Difference]: With dead ends: 1009 [2024-10-14 06:05:22,116 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:05:22,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:05:22,118 INFO L432 NwaCegarLoop]: 804 mSDtfsCounter, 713 mSDsluCounter, 1581 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 713 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:22,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [713 Valid, 2385 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:22,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:05:22,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:05:22,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.482632541133455) internal successors, (811), 547 states have internal predecessors, (811), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:22,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 817 transitions. [2024-10-14 06:05:22,132 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 817 transitions. Word has length 152 [2024-10-14 06:05:22,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:22,133 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 817 transitions. [2024-10-14 06:05:22,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:22,133 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 817 transitions. [2024-10-14 06:05:22,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-10-14 06:05:22,135 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:22,135 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:22,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 06:05:22,136 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:22,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:22,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1729904971, now seen corresponding path program 1 times [2024-10-14 06:05:22,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:22,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623682029] [2024-10-14 06:05:22,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:22,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:22,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:22,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:22,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:22,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:05:22,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:22,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:05:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:22,588 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:22,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:22,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623682029] [2024-10-14 06:05:22,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623682029] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:22,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:22,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:22,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420280144] [2024-10-14 06:05:22,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:22,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:22,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:22,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:22,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:22,591 INFO L87 Difference]: Start difference. First operand 552 states and 817 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:22,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:22,720 INFO L93 Difference]: Finished difference Result 1003 states and 1483 transitions. [2024-10-14 06:05:22,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:22,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 153 [2024-10-14 06:05:22,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:22,723 INFO L225 Difference]: With dead ends: 1003 [2024-10-14 06:05:22,723 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:05:22,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:22,725 INFO L432 NwaCegarLoop]: 772 mSDtfsCounter, 802 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:22,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 1552 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:22,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:05:22,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:05:22,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4808043875685557) internal successors, (810), 547 states have internal predecessors, (810), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:22,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 816 transitions. [2024-10-14 06:05:22,739 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 816 transitions. Word has length 153 [2024-10-14 06:05:22,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:22,740 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 816 transitions. [2024-10-14 06:05:22,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:22,740 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 816 transitions. [2024-10-14 06:05:22,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-10-14 06:05:22,742 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:22,742 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:22,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 06:05:22,743 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:22,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:22,743 INFO L85 PathProgramCache]: Analyzing trace with hash 871281751, now seen corresponding path program 1 times [2024-10-14 06:05:22,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:22,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302274421] [2024-10-14 06:05:22,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:22,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:22,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:23,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:23,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:05:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:23,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:05:23,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:23,147 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:23,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:23,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302274421] [2024-10-14 06:05:23,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302274421] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:23,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:23,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:23,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318857610] [2024-10-14 06:05:23,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:23,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:23,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:23,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:23,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:23,150 INFO L87 Difference]: Start difference. First operand 552 states and 816 transitions. Second operand has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:23,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:23,277 INFO L93 Difference]: Finished difference Result 1003 states and 1481 transitions. [2024-10-14 06:05:23,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:23,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 154 [2024-10-14 06:05:23,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:23,280 INFO L225 Difference]: With dead ends: 1003 [2024-10-14 06:05:23,280 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:05:23,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:23,282 INFO L432 NwaCegarLoop]: 772 mSDtfsCounter, 798 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 1552 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:23,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 1552 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:23,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:05:23,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:05:23,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4789762340036563) internal successors, (809), 547 states have internal predecessors, (809), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:23,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 815 transitions. [2024-10-14 06:05:23,303 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 815 transitions. Word has length 154 [2024-10-14 06:05:23,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:23,304 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 815 transitions. [2024-10-14 06:05:23,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.4) internal successors, (142), 5 states have internal predecessors, (142), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:23,305 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 815 transitions. [2024-10-14 06:05:23,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-14 06:05:23,308 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:23,308 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:23,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 06:05:23,308 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:23,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:23,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1040354958, now seen corresponding path program 1 times [2024-10-14 06:05:23,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:23,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730463058] [2024-10-14 06:05:23,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:23,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:23,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:24,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:24,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:24,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:05:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:24,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:05:24,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:24,029 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:24,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:24,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730463058] [2024-10-14 06:05:24,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730463058] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:24,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:24,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:05:24,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266971211] [2024-10-14 06:05:24,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:24,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 06:05:24,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:24,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 06:05:24,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:05:24,037 INFO L87 Difference]: Start difference. First operand 552 states and 815 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:24,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:24,246 INFO L93 Difference]: Finished difference Result 1003 states and 1479 transitions. [2024-10-14 06:05:24,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:24,247 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 155 [2024-10-14 06:05:24,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:24,251 INFO L225 Difference]: With dead ends: 1003 [2024-10-14 06:05:24,252 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:05:24,253 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:24,255 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 686 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 1458 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:24,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 1458 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 06:05:24,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:05:24,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:05:24,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.477148080438757) internal successors, (808), 547 states have internal predecessors, (808), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:24,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 814 transitions. [2024-10-14 06:05:24,272 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 814 transitions. Word has length 155 [2024-10-14 06:05:24,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:24,273 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 814 transitions. [2024-10-14 06:05:24,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:24,274 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 814 transitions. [2024-10-14 06:05:24,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-10-14 06:05:24,275 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:24,275 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:24,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 06:05:24,276 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:24,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:24,276 INFO L85 PathProgramCache]: Analyzing trace with hash -158861950, now seen corresponding path program 1 times [2024-10-14 06:05:24,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:24,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726104855] [2024-10-14 06:05:24,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:24,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:24,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:24,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:24,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:05:24,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:24,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:05:24,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:24,755 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:24,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:24,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726104855] [2024-10-14 06:05:24,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726104855] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:24,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:24,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:24,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238994000] [2024-10-14 06:05:24,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:24,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:24,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:24,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:24,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:24,760 INFO L87 Difference]: Start difference. First operand 552 states and 814 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:24,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:24,952 INFO L93 Difference]: Finished difference Result 1009 states and 1485 transitions. [2024-10-14 06:05:24,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 06:05:24,953 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 156 [2024-10-14 06:05:24,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:24,955 INFO L225 Difference]: With dead ends: 1009 [2024-10-14 06:05:24,955 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:05:24,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:05:24,957 INFO L432 NwaCegarLoop]: 800 mSDtfsCounter, 697 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 2333 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:24,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 2333 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:24,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:05:24,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:05:24,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4753199268738575) internal successors, (807), 547 states have internal predecessors, (807), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:24,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 813 transitions. [2024-10-14 06:05:24,974 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 813 transitions. Word has length 156 [2024-10-14 06:05:24,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:24,975 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 813 transitions. [2024-10-14 06:05:24,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:24,975 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 813 transitions. [2024-10-14 06:05:24,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-10-14 06:05:24,977 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:24,977 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:24,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 06:05:24,977 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:24,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:24,978 INFO L85 PathProgramCache]: Analyzing trace with hash -401911171, now seen corresponding path program 1 times [2024-10-14 06:05:24,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:24,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878661173] [2024-10-14 06:05:24,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:24,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:25,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:25,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:25,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:25,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:05:25,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:25,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:05:25,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:25,380 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:25,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:25,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878661173] [2024-10-14 06:05:25,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878661173] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:25,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:25,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:25,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461524849] [2024-10-14 06:05:25,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:25,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:25,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:25,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:25,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:25,384 INFO L87 Difference]: Start difference. First operand 552 states and 813 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:25,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:25,577 INFO L93 Difference]: Finished difference Result 1003 states and 1475 transitions. [2024-10-14 06:05:25,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:25,578 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 157 [2024-10-14 06:05:25,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:25,581 INFO L225 Difference]: With dead ends: 1003 [2024-10-14 06:05:25,581 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:05:25,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:25,583 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 798 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:25,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 1464 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 06:05:25,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:05:25,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:05:25,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4734917733089579) internal successors, (806), 547 states have internal predecessors, (806), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:25,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 812 transitions. [2024-10-14 06:05:25,598 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 812 transitions. Word has length 157 [2024-10-14 06:05:25,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:25,599 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 812 transitions. [2024-10-14 06:05:25,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:25,599 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 812 transitions. [2024-10-14 06:05:25,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-14 06:05:25,601 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:25,601 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:25,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 06:05:25,602 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:25,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:25,604 INFO L85 PathProgramCache]: Analyzing trace with hash -959173431, now seen corresponding path program 1 times [2024-10-14 06:05:25,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:25,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066927970] [2024-10-14 06:05:25,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:25,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:25,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:26,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:26,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:05:26,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:26,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:05:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:26,074 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:26,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:26,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066927970] [2024-10-14 06:05:26,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066927970] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:26,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:26,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:26,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623431674] [2024-10-14 06:05:26,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:26,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:26,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:26,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:26,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:26,084 INFO L87 Difference]: Start difference. First operand 552 states and 812 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:26,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:26,304 INFO L93 Difference]: Finished difference Result 1003 states and 1473 transitions. [2024-10-14 06:05:26,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:26,305 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 158 [2024-10-14 06:05:26,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:26,308 INFO L225 Difference]: With dead ends: 1003 [2024-10-14 06:05:26,308 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:05:26,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:26,312 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 794 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:26,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 1464 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 06:05:26,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:05:26,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:05:26,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4716636197440585) internal successors, (805), 547 states have internal predecessors, (805), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:26,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 811 transitions. [2024-10-14 06:05:26,333 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 811 transitions. Word has length 158 [2024-10-14 06:05:26,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:26,333 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 811 transitions. [2024-10-14 06:05:26,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:26,335 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 811 transitions. [2024-10-14 06:05:26,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-10-14 06:05:26,337 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:26,338 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:26,338 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 06:05:26,338 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:26,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:26,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1672871516, now seen corresponding path program 1 times [2024-10-14 06:05:26,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:26,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38868979] [2024-10-14 06:05:26,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:26,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:26,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:26,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:26,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:05:26,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:26,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:05:26,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:26,845 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:26,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:26,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38868979] [2024-10-14 06:05:26,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38868979] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:26,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:26,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:26,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11523316] [2024-10-14 06:05:26,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:26,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:26,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:26,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:26,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:26,849 INFO L87 Difference]: Start difference. First operand 552 states and 811 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:27,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:27,016 INFO L93 Difference]: Finished difference Result 1003 states and 1471 transitions. [2024-10-14 06:05:27,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:27,016 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 159 [2024-10-14 06:05:27,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:27,019 INFO L225 Difference]: With dead ends: 1003 [2024-10-14 06:05:27,019 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:05:27,020 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:27,022 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 1461 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1464 SdHoareTripleChecker+Valid, 1458 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:27,022 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1464 Valid, 1458 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:27,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:05:27,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:05:27,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.469835466179159) internal successors, (804), 547 states have internal predecessors, (804), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:27,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 810 transitions. [2024-10-14 06:05:27,036 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 810 transitions. Word has length 159 [2024-10-14 06:05:27,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:27,036 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 810 transitions. [2024-10-14 06:05:27,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 5 states have internal predecessors, (147), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:27,037 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 810 transitions. [2024-10-14 06:05:27,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-10-14 06:05:27,038 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:27,039 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:27,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 06:05:27,039 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:27,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:27,040 INFO L85 PathProgramCache]: Analyzing trace with hash 925686153, now seen corresponding path program 1 times [2024-10-14 06:05:27,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:27,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664562618] [2024-10-14 06:05:27,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:27,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:27,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:27,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:27,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:05:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:27,493 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:05:27,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:27,497 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:27,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:27,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664562618] [2024-10-14 06:05:27,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664562618] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:27,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:27,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:27,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316416043] [2024-10-14 06:05:27,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:27,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:27,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:27,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:27,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:27,500 INFO L87 Difference]: Start difference. First operand 552 states and 810 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:27,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:27,684 INFO L93 Difference]: Finished difference Result 1003 states and 1469 transitions. [2024-10-14 06:05:27,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:27,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 160 [2024-10-14 06:05:27,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:27,687 INFO L225 Difference]: With dead ends: 1003 [2024-10-14 06:05:27,687 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:05:27,688 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:27,689 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 783 mSDsluCounter, 736 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:27,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 1464 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:27,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:05:27,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:05:27,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4680073126142597) internal successors, (803), 547 states have internal predecessors, (803), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:27,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 809 transitions. [2024-10-14 06:05:27,703 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 809 transitions. Word has length 160 [2024-10-14 06:05:27,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:27,704 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 809 transitions. [2024-10-14 06:05:27,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.6) internal successors, (148), 5 states have internal predecessors, (148), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:27,704 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 809 transitions. [2024-10-14 06:05:27,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-10-14 06:05:27,706 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:27,706 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:27,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 06:05:27,707 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:27,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:27,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1086953085, now seen corresponding path program 1 times [2024-10-14 06:05:27,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:27,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132589593] [2024-10-14 06:05:27,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:27,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:28,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:28,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:28,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:05:28,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:28,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:05:28,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:28,109 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:28,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:28,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132589593] [2024-10-14 06:05:28,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132589593] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:28,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:28,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:28,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471833075] [2024-10-14 06:05:28,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:28,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:28,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:28,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:28,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:28,113 INFO L87 Difference]: Start difference. First operand 552 states and 809 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:28,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:28,286 INFO L93 Difference]: Finished difference Result 1003 states and 1467 transitions. [2024-10-14 06:05:28,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:28,287 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 161 [2024-10-14 06:05:28,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:28,289 INFO L225 Difference]: With dead ends: 1003 [2024-10-14 06:05:28,289 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:05:28,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:28,293 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 1445 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1448 SdHoareTripleChecker+Valid, 1458 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:28,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1448 Valid, 1458 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:28,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:05:28,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:05:28,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4661791590493602) internal successors, (802), 547 states have internal predecessors, (802), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:28,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 808 transitions. [2024-10-14 06:05:28,307 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 808 transitions. Word has length 161 [2024-10-14 06:05:28,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:28,307 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 808 transitions. [2024-10-14 06:05:28,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:28,308 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 808 transitions. [2024-10-14 06:05:28,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 06:05:28,309 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:28,309 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:28,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 06:05:28,310 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:28,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:28,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1586247038, now seen corresponding path program 1 times [2024-10-14 06:05:28,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:28,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833553596] [2024-10-14 06:05:28,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:28,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:28,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:28,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:28,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:28,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:05:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:28,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:05:28,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:28,846 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:28,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:28,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833553596] [2024-10-14 06:05:28,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833553596] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:28,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:28,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:28,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655288981] [2024-10-14 06:05:28,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:28,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:28,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:28,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:28,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:28,851 INFO L87 Difference]: Start difference. First operand 552 states and 808 transitions. Second operand has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:29,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:29,056 INFO L93 Difference]: Finished difference Result 1003 states and 1465 transitions. [2024-10-14 06:05:29,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:29,057 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 162 [2024-10-14 06:05:29,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:29,059 INFO L225 Difference]: With dead ends: 1003 [2024-10-14 06:05:29,059 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:05:29,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:29,061 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 1437 mSDsluCounter, 730 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1440 SdHoareTripleChecker+Valid, 1458 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:29,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1440 Valid, 1458 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:29,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:05:29,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:05:29,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4643510054844606) internal successors, (801), 547 states have internal predecessors, (801), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:29,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 807 transitions. [2024-10-14 06:05:29,076 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 807 transitions. Word has length 162 [2024-10-14 06:05:29,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:29,077 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 807 transitions. [2024-10-14 06:05:29,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.0) internal successors, (150), 5 states have internal predecessors, (150), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:29,078 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 807 transitions. [2024-10-14 06:05:29,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-10-14 06:05:29,079 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:29,080 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:29,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 06:05:29,080 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:29,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:29,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1194570710, now seen corresponding path program 1 times [2024-10-14 06:05:29,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:29,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133287094] [2024-10-14 06:05:29,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:29,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:29,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:29,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:29,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:29,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:05:29,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:29,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:05:29,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:29,697 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:29,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:29,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133287094] [2024-10-14 06:05:29,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133287094] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:29,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:29,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:05:29,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916378243] [2024-10-14 06:05:29,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:29,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 06:05:29,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:29,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 06:05:29,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:05:29,699 INFO L87 Difference]: Start difference. First operand 552 states and 807 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:29,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:29,767 INFO L93 Difference]: Finished difference Result 1003 states and 1463 transitions. [2024-10-14 06:05:29,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:29,768 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 163 [2024-10-14 06:05:29,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:29,770 INFO L225 Difference]: With dead ends: 1003 [2024-10-14 06:05:29,770 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:05:29,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:29,772 INFO L432 NwaCegarLoop]: 780 mSDtfsCounter, 699 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 1562 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:29,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [699 Valid, 1562 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:05:29,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:05:29,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:05:29,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4606946983546618) internal successors, (799), 547 states have internal predecessors, (799), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:29,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 805 transitions. [2024-10-14 06:05:29,789 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 805 transitions. Word has length 163 [2024-10-14 06:05:29,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:29,790 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 805 transitions. [2024-10-14 06:05:29,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:29,790 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 805 transitions. [2024-10-14 06:05:29,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-10-14 06:05:29,792 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:29,792 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:29,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 06:05:29,792 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:29,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:29,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1563044179, now seen corresponding path program 1 times [2024-10-14 06:05:29,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:29,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397629909] [2024-10-14 06:05:29,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:29,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:29,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:30,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:30,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:30,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:05:30,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:30,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:05:30,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:30,319 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:30,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:30,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397629909] [2024-10-14 06:05:30,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397629909] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:30,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:30,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:30,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409135343] [2024-10-14 06:05:30,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:30,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:30,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:30,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:30,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:30,322 INFO L87 Difference]: Start difference. First operand 552 states and 805 transitions. Second operand has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:30,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:30,401 INFO L93 Difference]: Finished difference Result 1003 states and 1459 transitions. [2024-10-14 06:05:30,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:30,402 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 165 [2024-10-14 06:05:30,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:30,404 INFO L225 Difference]: With dead ends: 1003 [2024-10-14 06:05:30,405 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:05:30,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:30,407 INFO L432 NwaCegarLoop]: 780 mSDtfsCounter, 1481 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 1562 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:30,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 1562 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:05:30,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:05:30,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:05:30,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4588665447897624) internal successors, (798), 547 states have internal predecessors, (798), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:30,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 804 transitions. [2024-10-14 06:05:30,422 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 804 transitions. Word has length 165 [2024-10-14 06:05:30,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:30,423 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 804 transitions. [2024-10-14 06:05:30,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.6) internal successors, (153), 5 states have internal predecessors, (153), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:30,423 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 804 transitions. [2024-10-14 06:05:30,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-10-14 06:05:30,425 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:30,426 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:30,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 06:05:30,426 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:30,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:30,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1228719973, now seen corresponding path program 1 times [2024-10-14 06:05:30,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:30,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096357630] [2024-10-14 06:05:30,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:30,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:30,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:31,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:31,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:31,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-10-14 06:05:31,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:31,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 06:05:31,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:31,033 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:31,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:31,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096357630] [2024-10-14 06:05:31,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096357630] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:31,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:31,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:05:31,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859301394] [2024-10-14 06:05:31,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:31,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 06:05:31,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:31,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 06:05:31,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:05:31,038 INFO L87 Difference]: Start difference. First operand 552 states and 804 transitions. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 06:05:31,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:31,113 INFO L93 Difference]: Finished difference Result 1003 states and 1457 transitions. [2024-10-14 06:05:31,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:31,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 166 [2024-10-14 06:05:31,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:31,116 INFO L225 Difference]: With dead ends: 1003 [2024-10-14 06:05:31,116 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:05:31,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:31,118 INFO L432 NwaCegarLoop]: 783 mSDtfsCounter, 734 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 1568 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:31,119 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 1568 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:05:31,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:05:31,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:05:31,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4570383912248628) internal successors, (797), 547 states have internal predecessors, (797), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:31,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 803 transitions. [2024-10-14 06:05:31,133 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 803 transitions. Word has length 166 [2024-10-14 06:05:31,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:31,134 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 803 transitions. [2024-10-14 06:05:31,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 06:05:31,134 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 803 transitions. [2024-10-14 06:05:31,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-10-14 06:05:31,136 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:31,136 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:31,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 06:05:31,136 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:31,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:31,137 INFO L85 PathProgramCache]: Analyzing trace with hash 873646117, now seen corresponding path program 1 times [2024-10-14 06:05:31,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:31,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775169258] [2024-10-14 06:05:31,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:31,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:31,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:31,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:31,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:31,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 06:05:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:31,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-10-14 06:05:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:31,810 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:31,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:31,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775169258] [2024-10-14 06:05:31,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775169258] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:31,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:31,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:05:31,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628483925] [2024-10-14 06:05:31,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:31,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 06:05:31,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:31,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 06:05:31,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:05:31,814 INFO L87 Difference]: Start difference. First operand 552 states and 803 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 06:05:31,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:31,899 INFO L93 Difference]: Finished difference Result 1003 states and 1455 transitions. [2024-10-14 06:05:31,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:31,899 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 167 [2024-10-14 06:05:31,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:31,902 INFO L225 Difference]: With dead ends: 1003 [2024-10-14 06:05:31,902 INFO L226 Difference]: Without dead ends: 552 [2024-10-14 06:05:31,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:31,904 INFO L432 NwaCegarLoop]: 783 mSDtfsCounter, 732 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 734 SdHoareTripleChecker+Valid, 1568 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:31,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [734 Valid, 1568 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:05:31,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 552 states. [2024-10-14 06:05:31,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 552 to 552. [2024-10-14 06:05:31,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 547 states have (on average 1.4552102376599634) internal successors, (796), 547 states have internal predecessors, (796), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:31,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 802 transitions. [2024-10-14 06:05:31,919 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 802 transitions. Word has length 167 [2024-10-14 06:05:31,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:31,920 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 802 transitions. [2024-10-14 06:05:31,920 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 06:05:31,920 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 802 transitions. [2024-10-14 06:05:31,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-14 06:05:31,922 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:31,922 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:31,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 06:05:31,923 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:31,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:31,923 INFO L85 PathProgramCache]: Analyzing trace with hash -48804542, now seen corresponding path program 1 times [2024-10-14 06:05:31,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:31,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231739822] [2024-10-14 06:05:31,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:31,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:32,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:32,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 06:05:32,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:32,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-14 06:05:32,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:32,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 06:05:32,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:32,775 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:32,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:32,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231739822] [2024-10-14 06:05:32,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231739822] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:32,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:32,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 06:05:32,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751123973] [2024-10-14 06:05:32,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:32,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 06:05:32,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:32,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 06:05:32,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:05:32,779 INFO L87 Difference]: Start difference. First operand 552 states and 802 transitions. Second operand has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:33,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:33,215 INFO L93 Difference]: Finished difference Result 1069 states and 1549 transitions. [2024-10-14 06:05:33,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 06:05:33,215 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 168 [2024-10-14 06:05:33,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:33,219 INFO L225 Difference]: With dead ends: 1069 [2024-10-14 06:05:33,219 INFO L226 Difference]: Without dead ends: 556 [2024-10-14 06:05:33,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-10-14 06:05:33,222 INFO L432 NwaCegarLoop]: 773 mSDtfsCounter, 863 mSDsluCounter, 2917 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 3690 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:33,222 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 3690 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 06:05:33,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-10-14 06:05:33,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 554. [2024-10-14 06:05:33,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 549 states have (on average 1.4517304189435336) internal successors, (797), 549 states have internal predecessors, (797), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:33,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 803 transitions. [2024-10-14 06:05:33,243 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 803 transitions. Word has length 168 [2024-10-14 06:05:33,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:33,243 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 803 transitions. [2024-10-14 06:05:33,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.285714285714285) internal successors, (156), 7 states have internal predecessors, (156), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:33,244 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 803 transitions. [2024-10-14 06:05:33,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-10-14 06:05:33,247 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:33,247 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:33,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 06:05:33,248 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:33,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:33,248 INFO L85 PathProgramCache]: Analyzing trace with hash 1591431925, now seen corresponding path program 1 times [2024-10-14 06:05:33,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:33,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607938420] [2024-10-14 06:05:33,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:33,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:33,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:34,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 06:05:34,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:34,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 06:05:34,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:34,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 06:05:34,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:34,312 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:34,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:34,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607938420] [2024-10-14 06:05:34,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607938420] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:34,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:34,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:34,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269821853] [2024-10-14 06:05:34,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:34,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:34,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:34,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:34,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:34,316 INFO L87 Difference]: Start difference. First operand 554 states and 803 transitions. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:34,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:34,776 INFO L93 Difference]: Finished difference Result 1011 states and 1461 transitions. [2024-10-14 06:05:34,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 06:05:34,777 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 169 [2024-10-14 06:05:34,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:34,780 INFO L225 Difference]: With dead ends: 1011 [2024-10-14 06:05:34,780 INFO L226 Difference]: Without dead ends: 558 [2024-10-14 06:05:34,782 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:34,783 INFO L432 NwaCegarLoop]: 606 mSDtfsCounter, 756 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 756 SdHoareTripleChecker+Valid, 1806 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:34,783 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [756 Valid, 1806 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 06:05:34,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2024-10-14 06:05:34,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 556. [2024-10-14 06:05:34,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.4500907441016333) internal successors, (799), 551 states have internal predecessors, (799), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:34,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 805 transitions. [2024-10-14 06:05:34,800 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 805 transitions. Word has length 169 [2024-10-14 06:05:34,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:34,800 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 805 transitions. [2024-10-14 06:05:34,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:34,801 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 805 transitions. [2024-10-14 06:05:34,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-10-14 06:05:34,802 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:34,802 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:34,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 06:05:34,803 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:34,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:34,803 INFO L85 PathProgramCache]: Analyzing trace with hash -568859358, now seen corresponding path program 1 times [2024-10-14 06:05:34,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:34,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263849854] [2024-10-14 06:05:34,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:34,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:35,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:35,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 06:05:35,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:35,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 06:05:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:35,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 06:05:35,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:35,442 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:35,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:35,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263849854] [2024-10-14 06:05:35,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263849854] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:35,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:35,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:05:35,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890276873] [2024-10-14 06:05:35,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:35,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 06:05:35,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:35,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 06:05:35,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:05:35,447 INFO L87 Difference]: Start difference. First operand 556 states and 805 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:35,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:35,562 INFO L93 Difference]: Finished difference Result 1011 states and 1459 transitions. [2024-10-14 06:05:35,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:35,563 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 170 [2024-10-14 06:05:35,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:35,565 INFO L225 Difference]: With dead ends: 1011 [2024-10-14 06:05:35,566 INFO L226 Difference]: Without dead ends: 556 [2024-10-14 06:05:35,567 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:35,567 INFO L432 NwaCegarLoop]: 758 mSDtfsCounter, 682 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 1518 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:35,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 1518 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:35,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-10-14 06:05:35,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-10-14 06:05:35,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.4482758620689655) internal successors, (798), 551 states have internal predecessors, (798), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:35,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 804 transitions. [2024-10-14 06:05:35,582 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 804 transitions. Word has length 170 [2024-10-14 06:05:35,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:35,582 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 804 transitions. [2024-10-14 06:05:35,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:35,583 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 804 transitions. [2024-10-14 06:05:35,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-10-14 06:05:35,584 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:35,585 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:35,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 06:05:35,585 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:35,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:35,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1772869966, now seen corresponding path program 1 times [2024-10-14 06:05:35,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:35,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415938683] [2024-10-14 06:05:35,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:35,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:35,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:36,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 06:05:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:36,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 06:05:36,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:36,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 06:05:36,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:36,213 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:36,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:36,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415938683] [2024-10-14 06:05:36,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415938683] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:36,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:36,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:36,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515951809] [2024-10-14 06:05:36,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:36,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:36,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:36,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:36,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:36,216 INFO L87 Difference]: Start difference. First operand 556 states and 804 transitions. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:36,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:36,341 INFO L93 Difference]: Finished difference Result 1011 states and 1457 transitions. [2024-10-14 06:05:36,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:36,342 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 171 [2024-10-14 06:05:36,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:36,344 INFO L225 Difference]: With dead ends: 1011 [2024-10-14 06:05:36,345 INFO L226 Difference]: Without dead ends: 556 [2024-10-14 06:05:36,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:36,346 INFO L432 NwaCegarLoop]: 758 mSDtfsCounter, 680 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 1524 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:36,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 1524 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:36,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-10-14 06:05:36,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-10-14 06:05:36,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.4464609800362977) internal successors, (797), 551 states have internal predecessors, (797), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:36,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 803 transitions. [2024-10-14 06:05:36,362 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 803 transitions. Word has length 171 [2024-10-14 06:05:36,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:36,363 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 803 transitions. [2024-10-14 06:05:36,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:36,363 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 803 transitions. [2024-10-14 06:05:36,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-10-14 06:05:36,365 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:36,365 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:36,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-14 06:05:36,365 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:36,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:36,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1245572259, now seen corresponding path program 1 times [2024-10-14 06:05:36,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:36,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364308777] [2024-10-14 06:05:36,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:36,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:36,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:36,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 06:05:36,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:37,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 06:05:37,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:37,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 06:05:37,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:37,025 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:37,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:37,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364308777] [2024-10-14 06:05:37,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364308777] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:37,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:37,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:37,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546774669] [2024-10-14 06:05:37,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:37,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:37,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:37,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:37,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:37,034 INFO L87 Difference]: Start difference. First operand 556 states and 803 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:37,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:37,154 INFO L93 Difference]: Finished difference Result 1011 states and 1455 transitions. [2024-10-14 06:05:37,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:37,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 172 [2024-10-14 06:05:37,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:37,158 INFO L225 Difference]: With dead ends: 1011 [2024-10-14 06:05:37,158 INFO L226 Difference]: Without dead ends: 556 [2024-10-14 06:05:37,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:37,160 INFO L432 NwaCegarLoop]: 758 mSDtfsCounter, 1350 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1350 SdHoareTripleChecker+Valid, 1518 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:37,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1350 Valid, 1518 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:37,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-10-14 06:05:37,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-10-14 06:05:37,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.4446460980036298) internal successors, (796), 551 states have internal predecessors, (796), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:37,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 802 transitions. [2024-10-14 06:05:37,186 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 802 transitions. Word has length 172 [2024-10-14 06:05:37,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:37,187 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 802 transitions. [2024-10-14 06:05:37,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:37,191 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 802 transitions. [2024-10-14 06:05:37,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-10-14 06:05:37,194 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:37,194 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:37,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-14 06:05:37,195 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:37,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:37,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1455036687, now seen corresponding path program 1 times [2024-10-14 06:05:37,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:37,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221010016] [2024-10-14 06:05:37,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:37,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:37,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:37,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 06:05:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:37,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 06:05:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:37,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 06:05:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:37,680 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:37,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:37,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221010016] [2024-10-14 06:05:37,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221010016] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:37,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:37,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:05:37,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057601234] [2024-10-14 06:05:37,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:37,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 06:05:37,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:37,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 06:05:37,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:05:37,683 INFO L87 Difference]: Start difference. First operand 556 states and 802 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:37,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:37,856 INFO L93 Difference]: Finished difference Result 1011 states and 1453 transitions. [2024-10-14 06:05:37,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:37,857 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 173 [2024-10-14 06:05:37,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:37,860 INFO L225 Difference]: With dead ends: 1011 [2024-10-14 06:05:37,860 INFO L226 Difference]: Without dead ends: 556 [2024-10-14 06:05:37,861 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:37,862 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 664 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:37,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 1440 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:37,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-10-14 06:05:37,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-10-14 06:05:37,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.442831215970962) internal successors, (795), 551 states have internal predecessors, (795), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:37,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 801 transitions. [2024-10-14 06:05:37,880 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 801 transitions. Word has length 173 [2024-10-14 06:05:37,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:37,880 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 801 transitions. [2024-10-14 06:05:37,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:37,881 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 801 transitions. [2024-10-14 06:05:37,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-10-14 06:05:37,883 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:37,883 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:37,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-14 06:05:37,884 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:37,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:37,884 INFO L85 PathProgramCache]: Analyzing trace with hash 116803075, now seen corresponding path program 1 times [2024-10-14 06:05:37,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:37,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509966658] [2024-10-14 06:05:37,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:37,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:38,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:38,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 06:05:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:38,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 06:05:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:38,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 06:05:38,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:38,591 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:38,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:38,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509966658] [2024-10-14 06:05:38,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509966658] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:38,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:38,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:38,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930132899] [2024-10-14 06:05:38,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:38,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:38,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:38,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:38,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:38,594 INFO L87 Difference]: Start difference. First operand 556 states and 801 transitions. Second operand has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:38,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:38,788 INFO L93 Difference]: Finished difference Result 1011 states and 1451 transitions. [2024-10-14 06:05:38,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:38,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 174 [2024-10-14 06:05:38,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:38,791 INFO L225 Difference]: With dead ends: 1011 [2024-10-14 06:05:38,792 INFO L226 Difference]: Without dead ends: 556 [2024-10-14 06:05:38,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:38,793 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 662 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 1446 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:38,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 1446 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 06:05:38,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-10-14 06:05:38,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-10-14 06:05:38,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.441016333938294) internal successors, (794), 551 states have internal predecessors, (794), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:38,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 800 transitions. [2024-10-14 06:05:38,812 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 800 transitions. Word has length 174 [2024-10-14 06:05:38,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:38,812 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 800 transitions. [2024-10-14 06:05:38,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.4) internal successors, (162), 5 states have internal predecessors, (162), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:38,813 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 800 transitions. [2024-10-14 06:05:38,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-10-14 06:05:38,814 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:38,814 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:38,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-14 06:05:38,815 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:38,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:38,815 INFO L85 PathProgramCache]: Analyzing trace with hash -2081744846, now seen corresponding path program 1 times [2024-10-14 06:05:38,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:38,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25814439] [2024-10-14 06:05:38,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:38,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:38,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:39,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 06:05:39,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:39,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 06:05:39,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:39,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 06:05:39,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:39,413 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:39,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:39,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25814439] [2024-10-14 06:05:39,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25814439] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:39,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:39,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:39,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041868875] [2024-10-14 06:05:39,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:39,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:39,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:39,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:39,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:39,417 INFO L87 Difference]: Start difference. First operand 556 states and 800 transitions. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:39,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:39,602 INFO L93 Difference]: Finished difference Result 1011 states and 1449 transitions. [2024-10-14 06:05:39,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:39,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 175 [2024-10-14 06:05:39,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:39,606 INFO L225 Difference]: With dead ends: 1011 [2024-10-14 06:05:39,606 INFO L226 Difference]: Without dead ends: 556 [2024-10-14 06:05:39,607 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:39,608 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 1314 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1314 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:39,608 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1314 Valid, 1440 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:39,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-10-14 06:05:39,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-10-14 06:05:39,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.4392014519056262) internal successors, (793), 551 states have internal predecessors, (793), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:39,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 799 transitions. [2024-10-14 06:05:39,624 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 799 transitions. Word has length 175 [2024-10-14 06:05:39,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:39,625 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 799 transitions. [2024-10-14 06:05:39,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:39,627 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 799 transitions. [2024-10-14 06:05:39,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-10-14 06:05:39,628 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:39,629 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:39,629 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-14 06:05:39,629 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:39,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:39,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1575189374, now seen corresponding path program 1 times [2024-10-14 06:05:39,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:39,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933468546] [2024-10-14 06:05:39,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:39,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:40,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 06:05:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:40,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 06:05:40,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:40,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 06:05:40,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:40,296 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:40,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:40,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933468546] [2024-10-14 06:05:40,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933468546] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:40,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:40,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:40,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855837478] [2024-10-14 06:05:40,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:40,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:40,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:40,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:40,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:40,300 INFO L87 Difference]: Start difference. First operand 556 states and 799 transitions. Second operand has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:40,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:40,479 INFO L93 Difference]: Finished difference Result 1011 states and 1447 transitions. [2024-10-14 06:05:40,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:40,480 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 176 [2024-10-14 06:05:40,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:40,483 INFO L225 Difference]: With dead ends: 1011 [2024-10-14 06:05:40,483 INFO L226 Difference]: Without dead ends: 556 [2024-10-14 06:05:40,484 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:40,485 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 1308 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1308 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:40,485 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1308 Valid, 1440 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:40,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-10-14 06:05:40,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-10-14 06:05:40,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.4373865698729582) internal successors, (792), 551 states have internal predecessors, (792), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:40,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 798 transitions. [2024-10-14 06:05:40,501 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 798 transitions. Word has length 176 [2024-10-14 06:05:40,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:40,502 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 798 transitions. [2024-10-14 06:05:40,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.8) internal successors, (164), 5 states have internal predecessors, (164), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:40,502 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 798 transitions. [2024-10-14 06:05:40,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-10-14 06:05:40,504 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:40,504 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:40,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-14 06:05:40,504 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:40,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:40,505 INFO L85 PathProgramCache]: Analyzing trace with hash 1939178995, now seen corresponding path program 1 times [2024-10-14 06:05:40,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:40,505 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233538280] [2024-10-14 06:05:40,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:40,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:41,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 06:05:41,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:41,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 06:05:41,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:41,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 06:05:41,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:41,135 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:41,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:41,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233538280] [2024-10-14 06:05:41,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233538280] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:41,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:41,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:05:41,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121267486] [2024-10-14 06:05:41,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:41,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 06:05:41,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:41,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 06:05:41,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:05:41,138 INFO L87 Difference]: Start difference. First operand 556 states and 798 transitions. Second operand has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:41,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:41,287 INFO L93 Difference]: Finished difference Result 1011 states and 1445 transitions. [2024-10-14 06:05:41,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:41,288 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 177 [2024-10-14 06:05:41,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:41,290 INFO L225 Difference]: With dead ends: 1011 [2024-10-14 06:05:41,290 INFO L226 Difference]: Without dead ends: 556 [2024-10-14 06:05:41,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:41,292 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 644 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:41,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 1440 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:41,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-10-14 06:05:41,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-10-14 06:05:41,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.4355716878402904) internal successors, (791), 551 states have internal predecessors, (791), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:41,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 797 transitions. [2024-10-14 06:05:41,307 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 797 transitions. Word has length 177 [2024-10-14 06:05:41,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:41,307 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 797 transitions. [2024-10-14 06:05:41,308 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.25) internal successors, (165), 4 states have internal predecessors, (165), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:41,308 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 797 transitions. [2024-10-14 06:05:41,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-10-14 06:05:41,309 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:41,309 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:41,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-14 06:05:41,309 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:41,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:41,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1042592127, now seen corresponding path program 1 times [2024-10-14 06:05:41,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:41,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874748435] [2024-10-14 06:05:41,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:41,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:41,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 06:05:41,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:41,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 06:05:41,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:41,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 06:05:41,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:41,891 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:41,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:41,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874748435] [2024-10-14 06:05:41,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874748435] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:41,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:41,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:41,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808851060] [2024-10-14 06:05:41,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:41,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:41,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:41,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:41,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:41,894 INFO L87 Difference]: Start difference. First operand 556 states and 797 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:42,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:42,072 INFO L93 Difference]: Finished difference Result 1011 states and 1443 transitions. [2024-10-14 06:05:42,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:42,072 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 178 [2024-10-14 06:05:42,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:42,075 INFO L225 Difference]: With dead ends: 1011 [2024-10-14 06:05:42,075 INFO L226 Difference]: Without dead ends: 556 [2024-10-14 06:05:42,076 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:42,076 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 658 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 1446 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:42,077 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 1446 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:42,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-10-14 06:05:42,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-10-14 06:05:42,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.4337568058076224) internal successors, (790), 551 states have internal predecessors, (790), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:42,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 796 transitions. [2024-10-14 06:05:42,093 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 796 transitions. Word has length 178 [2024-10-14 06:05:42,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:42,093 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 796 transitions. [2024-10-14 06:05:42,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 5 states have internal predecessors, (166), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:42,094 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 796 transitions. [2024-10-14 06:05:42,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-10-14 06:05:42,095 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:42,095 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:42,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-14 06:05:42,095 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:42,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:42,096 INFO L85 PathProgramCache]: Analyzing trace with hash 1865261108, now seen corresponding path program 1 times [2024-10-14 06:05:42,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:42,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622720091] [2024-10-14 06:05:42,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:42,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:42,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:42,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 06:05:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:42,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 06:05:42,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:42,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 06:05:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:42,645 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:42,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:42,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622720091] [2024-10-14 06:05:42,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622720091] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:42,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:42,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:42,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996139456] [2024-10-14 06:05:42,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:42,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:42,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:42,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:42,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:42,647 INFO L87 Difference]: Start difference. First operand 556 states and 796 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:42,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:42,835 INFO L93 Difference]: Finished difference Result 1011 states and 1441 transitions. [2024-10-14 06:05:42,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:42,837 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 179 [2024-10-14 06:05:42,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:42,839 INFO L225 Difference]: With dead ends: 1011 [2024-10-14 06:05:42,839 INFO L226 Difference]: Without dead ends: 556 [2024-10-14 06:05:42,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:42,846 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 657 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 1446 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:42,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 1446 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:42,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-10-14 06:05:42,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2024-10-14 06:05:42,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 551 states have (on average 1.4319419237749547) internal successors, (789), 551 states have internal predecessors, (789), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:42,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 795 transitions. [2024-10-14 06:05:42,871 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 795 transitions. Word has length 179 [2024-10-14 06:05:42,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:42,872 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 795 transitions. [2024-10-14 06:05:42,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:42,872 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 795 transitions. [2024-10-14 06:05:42,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-10-14 06:05:42,873 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:42,874 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:42,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-14 06:05:42,874 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:42,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:42,875 INFO L85 PathProgramCache]: Analyzing trace with hash -278776832, now seen corresponding path program 1 times [2024-10-14 06:05:42,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:42,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717441112] [2024-10-14 06:05:42,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:42,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:43,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:43,887 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 06:05:43,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:43,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 06:05:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:43,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 06:05:43,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:43,893 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:43,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:43,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717441112] [2024-10-14 06:05:43,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717441112] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:43,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:43,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:43,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788957568] [2024-10-14 06:05:43,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:43,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:43,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:43,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:43,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:43,896 INFO L87 Difference]: Start difference. First operand 556 states and 795 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:43,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:43,955 INFO L93 Difference]: Finished difference Result 1089 states and 1529 transitions. [2024-10-14 06:05:43,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 06:05:43,956 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 180 [2024-10-14 06:05:43,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:43,960 INFO L225 Difference]: With dead ends: 1089 [2024-10-14 06:05:43,960 INFO L226 Difference]: Without dead ends: 634 [2024-10-14 06:05:43,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:43,961 INFO L432 NwaCegarLoop]: 780 mSDtfsCounter, 21 mSDsluCounter, 2334 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 3114 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:43,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 3114 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:05:43,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2024-10-14 06:05:43,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 632. [2024-10-14 06:05:43,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 632 states, 627 states have (on average 1.3955342902711323) internal successors, (875), 627 states have internal predecessors, (875), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:43,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 881 transitions. [2024-10-14 06:05:43,981 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 881 transitions. Word has length 180 [2024-10-14 06:05:43,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:43,982 INFO L471 AbstractCegarLoop]: Abstraction has 632 states and 881 transitions. [2024-10-14 06:05:43,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:43,982 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 881 transitions. [2024-10-14 06:05:43,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-10-14 06:05:43,983 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:43,983 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:43,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-14 06:05:43,984 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:43,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:43,984 INFO L85 PathProgramCache]: Analyzing trace with hash 856740426, now seen corresponding path program 1 times [2024-10-14 06:05:43,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:43,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990474954] [2024-10-14 06:05:43,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:43,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:44,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:44,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 06:05:44,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:44,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 06:05:44,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:44,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-10-14 06:05:44,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:44,820 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:44,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:44,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990474954] [2024-10-14 06:05:44,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990474954] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:44,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:44,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 06:05:44,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942180143] [2024-10-14 06:05:44,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:44,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 06:05:44,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:44,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 06:05:44,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:05:44,828 INFO L87 Difference]: Start difference. First operand 632 states and 881 transitions. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 06:05:45,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:45,530 INFO L93 Difference]: Finished difference Result 1167 states and 1617 transitions. [2024-10-14 06:05:45,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 06:05:45,530 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 181 [2024-10-14 06:05:45,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:45,533 INFO L225 Difference]: With dead ends: 1167 [2024-10-14 06:05:45,533 INFO L226 Difference]: Without dead ends: 636 [2024-10-14 06:05:45,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-14 06:05:45,535 INFO L432 NwaCegarLoop]: 583 mSDtfsCounter, 1493 mSDsluCounter, 1744 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 2327 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:45,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 2327 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 06:05:45,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2024-10-14 06:05:45,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 634. [2024-10-14 06:05:45,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 629 states have (on average 1.3926868044515104) internal successors, (876), 629 states have internal predecessors, (876), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:45,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 882 transitions. [2024-10-14 06:05:45,558 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 882 transitions. Word has length 181 [2024-10-14 06:05:45,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:45,558 INFO L471 AbstractCegarLoop]: Abstraction has 634 states and 882 transitions. [2024-10-14 06:05:45,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 06:05:45,559 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 882 transitions. [2024-10-14 06:05:45,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2024-10-14 06:05:45,560 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:45,560 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:45,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-14 06:05:45,561 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:45,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:45,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1952129003, now seen corresponding path program 1 times [2024-10-14 06:05:45,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:45,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303771360] [2024-10-14 06:05:45,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:45,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:46,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 06:05:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:46,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 06:05:46,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:46,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-14 06:05:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:46,209 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:46,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:46,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303771360] [2024-10-14 06:05:46,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303771360] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:46,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:46,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 06:05:46,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661957617] [2024-10-14 06:05:46,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:46,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 06:05:46,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:46,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 06:05:46,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:05:46,213 INFO L87 Difference]: Start difference. First operand 634 states and 882 transitions. Second operand has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 7 states have internal predecessors, (170), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 06:05:46,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:46,887 INFO L93 Difference]: Finished difference Result 1171 states and 1619 transitions. [2024-10-14 06:05:46,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 06:05:46,887 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 7 states have internal predecessors, (170), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 182 [2024-10-14 06:05:46,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:46,890 INFO L225 Difference]: With dead ends: 1171 [2024-10-14 06:05:46,891 INFO L226 Difference]: Without dead ends: 638 [2024-10-14 06:05:46,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-10-14 06:05:46,892 INFO L432 NwaCegarLoop]: 582 mSDtfsCounter, 1475 mSDsluCounter, 1741 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1476 SdHoareTripleChecker+Valid, 2323 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:46,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1476 Valid, 2323 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 06:05:46,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2024-10-14 06:05:46,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 636. [2024-10-14 06:05:46,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 636 states, 631 states have (on average 1.3898573692551506) internal successors, (877), 631 states have internal predecessors, (877), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:46,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 636 states to 636 states and 883 transitions. [2024-10-14 06:05:46,915 INFO L78 Accepts]: Start accepts. Automaton has 636 states and 883 transitions. Word has length 182 [2024-10-14 06:05:46,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:46,916 INFO L471 AbstractCegarLoop]: Abstraction has 636 states and 883 transitions. [2024-10-14 06:05:46,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 7 states have internal predecessors, (170), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 06:05:46,916 INFO L276 IsEmpty]: Start isEmpty. Operand 636 states and 883 transitions. [2024-10-14 06:05:46,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2024-10-14 06:05:46,917 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:46,918 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:46,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-10-14 06:05:46,918 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:46,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:46,919 INFO L85 PathProgramCache]: Analyzing trace with hash -94203579, now seen corresponding path program 1 times [2024-10-14 06:05:46,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:46,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074214093] [2024-10-14 06:05:46,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:46,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:47,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:47,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 06:05:47,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:47,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 06:05:47,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:47,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-14 06:05:47,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:47,649 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:47,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:47,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074214093] [2024-10-14 06:05:47,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074214093] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:47,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:47,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 06:05:47,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390630672] [2024-10-14 06:05:47,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:47,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 06:05:47,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:47,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 06:05:47,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:47,653 INFO L87 Difference]: Start difference. First operand 636 states and 883 transitions. Second operand has 6 states, 6 states have (on average 28.5) internal successors, (171), 6 states have internal predecessors, (171), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 06:05:48,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:48,270 INFO L93 Difference]: Finished difference Result 1173 states and 1618 transitions. [2024-10-14 06:05:48,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 06:05:48,270 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.5) internal successors, (171), 6 states have internal predecessors, (171), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 183 [2024-10-14 06:05:48,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:48,273 INFO L225 Difference]: With dead ends: 1173 [2024-10-14 06:05:48,273 INFO L226 Difference]: Without dead ends: 638 [2024-10-14 06:05:48,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:05:48,275 INFO L432 NwaCegarLoop]: 582 mSDtfsCounter, 710 mSDsluCounter, 1741 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 2323 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:48,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [711 Valid, 2323 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 06:05:48,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2024-10-14 06:05:48,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 637. [2024-10-14 06:05:48,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 637 states, 632 states have (on average 1.389240506329114) internal successors, (878), 632 states have internal predecessors, (878), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:48,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 637 states to 637 states and 884 transitions. [2024-10-14 06:05:48,296 INFO L78 Accepts]: Start accepts. Automaton has 637 states and 884 transitions. Word has length 183 [2024-10-14 06:05:48,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:48,297 INFO L471 AbstractCegarLoop]: Abstraction has 637 states and 884 transitions. [2024-10-14 06:05:48,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.5) internal successors, (171), 6 states have internal predecessors, (171), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 06:05:48,297 INFO L276 IsEmpty]: Start isEmpty. Operand 637 states and 884 transitions. [2024-10-14 06:05:48,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-10-14 06:05:48,299 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:48,299 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:48,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-10-14 06:05:48,299 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:48,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:48,300 INFO L85 PathProgramCache]: Analyzing trace with hash 81812914, now seen corresponding path program 1 times [2024-10-14 06:05:48,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:48,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708179873] [2024-10-14 06:05:48,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:48,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:49,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 06:05:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:49,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-10-14 06:05:49,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:49,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 06:05:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:49,026 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:49,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:49,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708179873] [2024-10-14 06:05:49,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708179873] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:49,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:49,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 06:05:49,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614413387] [2024-10-14 06:05:49,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:49,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 06:05:49,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:49,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 06:05:49,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:49,030 INFO L87 Difference]: Start difference. First operand 637 states and 884 transitions. Second operand has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 06:05:49,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:49,650 INFO L93 Difference]: Finished difference Result 1175 states and 1620 transitions. [2024-10-14 06:05:49,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 06:05:49,651 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 184 [2024-10-14 06:05:49,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:49,653 INFO L225 Difference]: With dead ends: 1175 [2024-10-14 06:05:49,654 INFO L226 Difference]: Without dead ends: 639 [2024-10-14 06:05:49,655 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:05:49,655 INFO L432 NwaCegarLoop]: 582 mSDtfsCounter, 718 mSDsluCounter, 1741 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 2323 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:49,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [720 Valid, 2323 Invalid, 819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 06:05:49,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2024-10-14 06:05:49,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 638. [2024-10-14 06:05:49,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 633 states have (on average 1.3886255924170616) internal successors, (879), 633 states have internal predecessors, (879), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:49,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 885 transitions. [2024-10-14 06:05:49,674 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 885 transitions. Word has length 184 [2024-10-14 06:05:49,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:49,675 INFO L471 AbstractCegarLoop]: Abstraction has 638 states and 885 transitions. [2024-10-14 06:05:49,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 06:05:49,675 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 885 transitions. [2024-10-14 06:05:49,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-10-14 06:05:49,676 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:49,677 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:49,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-10-14 06:05:49,677 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:49,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:49,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1149060892, now seen corresponding path program 1 times [2024-10-14 06:05:49,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:49,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897814256] [2024-10-14 06:05:49,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:49,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:49,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:50,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 06:05:50,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:50,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 06:05:50,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:50,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 06:05:50,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:50,578 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:50,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:50,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897814256] [2024-10-14 06:05:50,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897814256] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:50,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:50,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:50,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138829043] [2024-10-14 06:05:50,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:50,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:50,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:50,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:50,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:50,581 INFO L87 Difference]: Start difference. First operand 638 states and 885 transitions. Second operand has 5 states, 5 states have (on average 34.6) internal successors, (173), 5 states have internal predecessors, (173), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:51,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:51,028 INFO L93 Difference]: Finished difference Result 1179 states and 1625 transitions. [2024-10-14 06:05:51,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 06:05:51,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 5 states have internal predecessors, (173), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 185 [2024-10-14 06:05:51,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:51,032 INFO L225 Difference]: With dead ends: 1179 [2024-10-14 06:05:51,032 INFO L226 Difference]: Without dead ends: 642 [2024-10-14 06:05:51,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:51,034 INFO L432 NwaCegarLoop]: 594 mSDtfsCounter, 682 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 1770 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:51,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 1770 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 06:05:51,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2024-10-14 06:05:51,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 640. [2024-10-14 06:05:51,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 635 states have (on average 1.3874015748031496) internal successors, (881), 635 states have internal predecessors, (881), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:51,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 887 transitions. [2024-10-14 06:05:51,054 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 887 transitions. Word has length 185 [2024-10-14 06:05:51,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:51,054 INFO L471 AbstractCegarLoop]: Abstraction has 640 states and 887 transitions. [2024-10-14 06:05:51,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 5 states have internal predecessors, (173), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:51,055 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 887 transitions. [2024-10-14 06:05:51,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-10-14 06:05:51,056 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:51,056 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:51,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-10-14 06:05:51,057 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:51,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:51,057 INFO L85 PathProgramCache]: Analyzing trace with hash 299442045, now seen corresponding path program 1 times [2024-10-14 06:05:51,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:51,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746556992] [2024-10-14 06:05:51,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:51,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:51,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:51,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 06:05:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:51,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 06:05:51,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:51,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 06:05:51,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:51,977 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:51,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:51,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746556992] [2024-10-14 06:05:51,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746556992] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:51,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:51,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 06:05:51,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576886227] [2024-10-14 06:05:51,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:51,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 06:05:51,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:51,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 06:05:51,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:51,981 INFO L87 Difference]: Start difference. First operand 640 states and 887 transitions. Second operand has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:52,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:52,669 INFO L93 Difference]: Finished difference Result 1309 states and 1765 transitions. [2024-10-14 06:05:52,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 06:05:52,670 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 185 [2024-10-14 06:05:52,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:52,673 INFO L225 Difference]: With dead ends: 1309 [2024-10-14 06:05:52,673 INFO L226 Difference]: Without dead ends: 770 [2024-10-14 06:05:52,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:05:52,678 INFO L432 NwaCegarLoop]: 638 mSDtfsCounter, 804 mSDsluCounter, 1820 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 2458 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:52,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 2458 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 06:05:52,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2024-10-14 06:05:52,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 640. [2024-10-14 06:05:52,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 635 states have (on average 1.384251968503937) internal successors, (879), 635 states have internal predecessors, (879), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:52,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 885 transitions. [2024-10-14 06:05:52,700 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 885 transitions. Word has length 185 [2024-10-14 06:05:52,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:52,701 INFO L471 AbstractCegarLoop]: Abstraction has 640 states and 885 transitions. [2024-10-14 06:05:52,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.833333333333332) internal successors, (173), 6 states have internal predecessors, (173), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:52,702 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 885 transitions. [2024-10-14 06:05:52,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-10-14 06:05:52,703 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:52,703 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:52,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-10-14 06:05:52,704 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:52,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:52,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1906798752, now seen corresponding path program 1 times [2024-10-14 06:05:52,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:52,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564630461] [2024-10-14 06:05:52,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:52,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:52,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:53,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-14 06:05:53,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:53,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 06:05:53,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:53,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 06:05:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:53,401 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:53,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:53,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564630461] [2024-10-14 06:05:53,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564630461] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:53,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:53,402 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 06:05:53,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360849487] [2024-10-14 06:05:53,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:53,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 06:05:53,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:53,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 06:05:53,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:53,404 INFO L87 Difference]: Start difference. First operand 640 states and 885 transitions. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:54,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:54,010 INFO L93 Difference]: Finished difference Result 1181 states and 1622 transitions. [2024-10-14 06:05:54,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 06:05:54,011 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 186 [2024-10-14 06:05:54,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:54,014 INFO L225 Difference]: With dead ends: 1181 [2024-10-14 06:05:54,014 INFO L226 Difference]: Without dead ends: 642 [2024-10-14 06:05:54,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:05:54,016 INFO L432 NwaCegarLoop]: 582 mSDtfsCounter, 729 mSDsluCounter, 1741 mSDsCounter, 0 mSdLazyCounter, 815 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 2323 SdHoareTripleChecker+Invalid, 815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:54,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 2323 Invalid, 815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 815 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 06:05:54,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2024-10-14 06:05:54,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 641. [2024-10-14 06:05:54,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 636 states have (on average 1.3836477987421383) internal successors, (880), 636 states have internal predecessors, (880), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-14 06:05:54,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 886 transitions. [2024-10-14 06:05:54,035 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 886 transitions. Word has length 186 [2024-10-14 06:05:54,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:54,036 INFO L471 AbstractCegarLoop]: Abstraction has 641 states and 886 transitions. [2024-10-14 06:05:54,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 6 states have internal predecessors, (174), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:54,036 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 886 transitions. [2024-10-14 06:05:54,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-10-14 06:05:54,037 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:54,038 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:54,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-10-14 06:05:54,038 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:54,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:54,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1415872086, now seen corresponding path program 1 times [2024-10-14 06:05:54,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:54,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774968288] [2024-10-14 06:05:54,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:54,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:55,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:55,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:55,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:55,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:55,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:55,569 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:55,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:55,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774968288] [2024-10-14 06:05:55,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774968288] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:55,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:55,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 06:05:55,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952067244] [2024-10-14 06:05:55,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:55,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 06:05:55,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:55,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 06:05:55,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:05:55,573 INFO L87 Difference]: Start difference. First operand 641 states and 886 transitions. Second operand has 9 states, 9 states have (on average 19.444444444444443) internal successors, (175), 9 states have internal predecessors, (175), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 06:05:57,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:57,102 INFO L93 Difference]: Finished difference Result 1636 states and 2238 transitions. [2024-10-14 06:05:57,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 06:05:57,103 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.444444444444443) internal successors, (175), 9 states have internal predecessors, (175), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 187 [2024-10-14 06:05:57,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:57,107 INFO L225 Difference]: With dead ends: 1636 [2024-10-14 06:05:57,107 INFO L226 Difference]: Without dead ends: 1096 [2024-10-14 06:05:57,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-10-14 06:05:57,111 INFO L432 NwaCegarLoop]: 925 mSDtfsCounter, 2042 mSDsluCounter, 4240 mSDsCounter, 0 mSdLazyCounter, 1944 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2043 SdHoareTripleChecker+Valid, 5165 SdHoareTripleChecker+Invalid, 1949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1944 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:57,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2043 Valid, 5165 Invalid, 1949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1944 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-14 06:05:57,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2024-10-14 06:05:57,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 667. [2024-10-14 06:05:57,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 661 states have (on average 1.3827534039334342) internal successors, (914), 661 states have internal predecessors, (914), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-14 06:05:57,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 922 transitions. [2024-10-14 06:05:57,139 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 922 transitions. Word has length 187 [2024-10-14 06:05:57,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:57,140 INFO L471 AbstractCegarLoop]: Abstraction has 667 states and 922 transitions. [2024-10-14 06:05:57,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.444444444444443) internal successors, (175), 9 states have internal predecessors, (175), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 06:05:57,140 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 922 transitions. [2024-10-14 06:05:57,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-10-14 06:05:57,141 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:57,142 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:57,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-10-14 06:05:57,142 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:57,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:57,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1070943050, now seen corresponding path program 1 times [2024-10-14 06:05:57,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:57,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440354809] [2024-10-14 06:05:57,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:57,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:58,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:58,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:58,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:58,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:58,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:58,173 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-14 06:05:58,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:58,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440354809] [2024-10-14 06:05:58,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440354809] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:58,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:58,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 06:05:58,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678187224] [2024-10-14 06:05:58,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:58,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 06:05:58,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:58,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 06:05:58,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:58,175 INFO L87 Difference]: Start difference. First operand 667 states and 922 transitions. Second operand has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:58,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:58,303 INFO L93 Difference]: Finished difference Result 1500 states and 2023 transitions. [2024-10-14 06:05:58,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 06:05:58,304 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 187 [2024-10-14 06:05:58,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:58,312 INFO L225 Difference]: With dead ends: 1500 [2024-10-14 06:05:58,312 INFO L226 Difference]: Without dead ends: 934 [2024-10-14 06:05:58,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:05:58,314 INFO L432 NwaCegarLoop]: 771 mSDtfsCounter, 1118 mSDsluCounter, 2309 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 3080 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:58,316 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1121 Valid, 3080 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:58,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2024-10-14 06:05:58,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 934. [2024-10-14 06:05:58,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 924 states have (on average 1.3365800865800865) internal successors, (1235), 924 states have internal predecessors, (1235), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:58,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1251 transitions. [2024-10-14 06:05:58,345 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1251 transitions. Word has length 187 [2024-10-14 06:05:58,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:58,346 INFO L471 AbstractCegarLoop]: Abstraction has 934 states and 1251 transitions. [2024-10-14 06:05:58,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.166666666666668) internal successors, (175), 6 states have internal predecessors, (175), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-14 06:05:58,346 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1251 transitions. [2024-10-14 06:05:58,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-10-14 06:05:58,352 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:58,352 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:58,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-10-14 06:05:58,353 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:58,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:58,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1656599849, now seen corresponding path program 1 times [2024-10-14 06:05:58,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:58,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882105717] [2024-10-14 06:05:58,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:58,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:58,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:59,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:05:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:59,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:05:59,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:59,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:05:59,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:59,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2024-10-14 06:05:59,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:59,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2024-10-14 06:05:59,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:59,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2024-10-14 06:05:59,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:05:59,421 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:05:59,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:05:59,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882105717] [2024-10-14 06:05:59,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882105717] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:05:59,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:05:59,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:05:59,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842229943] [2024-10-14 06:05:59,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:05:59,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:05:59,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:05:59,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:05:59,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:05:59,426 INFO L87 Difference]: Start difference. First operand 934 states and 1251 transitions. Second operand has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-14 06:05:59,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:05:59,583 INFO L93 Difference]: Finished difference Result 1500 states and 2022 transitions. [2024-10-14 06:05:59,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:05:59,584 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 461 [2024-10-14 06:05:59,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:05:59,589 INFO L225 Difference]: With dead ends: 1500 [2024-10-14 06:05:59,589 INFO L226 Difference]: Without dead ends: 934 [2024-10-14 06:05:59,590 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:05:59,594 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 720 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:05:59,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 1440 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:05:59,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2024-10-14 06:05:59,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 934. [2024-10-14 06:05:59,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 924 states have (on average 1.3354978354978355) internal successors, (1234), 924 states have internal predecessors, (1234), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:05:59,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1250 transitions. [2024-10-14 06:05:59,632 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1250 transitions. Word has length 461 [2024-10-14 06:05:59,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:05:59,632 INFO L471 AbstractCegarLoop]: Abstraction has 934 states and 1250 transitions. [2024-10-14 06:05:59,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 86.8) internal successors, (434), 5 states have internal predecessors, (434), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-14 06:05:59,633 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1250 transitions. [2024-10-14 06:05:59,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2024-10-14 06:05:59,639 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:05:59,639 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:05:59,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-10-14 06:05:59,640 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:05:59,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:05:59,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1390272967, now seen corresponding path program 1 times [2024-10-14 06:05:59,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:05:59,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263261654] [2024-10-14 06:05:59,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:05:59,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:05:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:00,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:06:00,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:00,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:06:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:00,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:06:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:00,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2024-10-14 06:06:00,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:00,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2024-10-14 06:06:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:00,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2024-10-14 06:06:00,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:00,646 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:06:00,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:06:00,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263261654] [2024-10-14 06:06:00,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263261654] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:06:00,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:06:00,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:06:00,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614539976] [2024-10-14 06:06:00,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:06:00,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:06:00,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:06:00,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:06:00,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:06:00,649 INFO L87 Difference]: Start difference. First operand 934 states and 1250 transitions. Second operand has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 states have internal predecessors, (435), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-14 06:06:00,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:06:00,801 INFO L93 Difference]: Finished difference Result 1500 states and 2020 transitions. [2024-10-14 06:06:00,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:06:00,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 states have internal predecessors, (435), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 462 [2024-10-14 06:06:00,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:06:00,806 INFO L225 Difference]: With dead ends: 1500 [2024-10-14 06:06:00,809 INFO L226 Difference]: Without dead ends: 934 [2024-10-14 06:06:00,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:06:00,811 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 712 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 715 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:06:00,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [715 Valid, 1440 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:06:00,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2024-10-14 06:06:00,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 934. [2024-10-14 06:06:00,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 924 states have (on average 1.3344155844155845) internal successors, (1233), 924 states have internal predecessors, (1233), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:06:00,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1249 transitions. [2024-10-14 06:06:00,846 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1249 transitions. Word has length 462 [2024-10-14 06:06:00,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:06:00,847 INFO L471 AbstractCegarLoop]: Abstraction has 934 states and 1249 transitions. [2024-10-14 06:06:00,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.0) internal successors, (435), 5 states have internal predecessors, (435), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-14 06:06:00,847 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1249 transitions. [2024-10-14 06:06:00,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2024-10-14 06:06:00,851 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:06:00,852 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:06:00,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-10-14 06:06:00,853 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:06:00,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:06:00,853 INFO L85 PathProgramCache]: Analyzing trace with hash -374343788, now seen corresponding path program 1 times [2024-10-14 06:06:00,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:06:00,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253690090] [2024-10-14 06:06:00,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:06:00,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:06:01,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:01,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:06:01,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:01,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:06:01,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:01,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:06:01,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:01,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2024-10-14 06:06:01,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:01,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2024-10-14 06:06:01,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:01,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2024-10-14 06:06:01,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:01,914 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:06:01,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:06:01,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253690090] [2024-10-14 06:06:01,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253690090] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:06:01,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:06:01,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:06:01,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302295631] [2024-10-14 06:06:01,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:06:01,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:06:01,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:06:01,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:06:01,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:06:01,918 INFO L87 Difference]: Start difference. First operand 934 states and 1249 transitions. Second operand has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-14 06:06:02,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:06:02,070 INFO L93 Difference]: Finished difference Result 1500 states and 2018 transitions. [2024-10-14 06:06:02,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:06:02,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 463 [2024-10-14 06:06:02,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:06:02,079 INFO L225 Difference]: With dead ends: 1500 [2024-10-14 06:06:02,080 INFO L226 Difference]: Without dead ends: 934 [2024-10-14 06:06:02,082 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:06:02,083 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 1279 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1282 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:06:02,083 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1282 Valid, 1434 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:06:02,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2024-10-14 06:06:02,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 934. [2024-10-14 06:06:02,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 924 states have (on average 1.3333333333333333) internal successors, (1232), 924 states have internal predecessors, (1232), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:06:02,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1248 transitions. [2024-10-14 06:06:02,109 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1248 transitions. Word has length 463 [2024-10-14 06:06:02,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:06:02,110 INFO L471 AbstractCegarLoop]: Abstraction has 934 states and 1248 transitions. [2024-10-14 06:06:02,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.2) internal successors, (436), 5 states have internal predecessors, (436), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-14 06:06:02,110 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1248 transitions. [2024-10-14 06:06:02,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2024-10-14 06:06:02,113 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:06:02,114 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:06:02,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-10-14 06:06:02,114 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:06:02,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:06:02,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1345611346, now seen corresponding path program 1 times [2024-10-14 06:06:02,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:06:02,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021885851] [2024-10-14 06:06:02,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:06:02,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:06:02,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:03,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:06:03,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:03,228 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:06:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:03,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:06:03,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:03,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2024-10-14 06:06:03,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:03,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2024-10-14 06:06:03,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:03,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2024-10-14 06:06:03,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:03,237 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:06:03,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:06:03,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021885851] [2024-10-14 06:06:03,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021885851] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:06:03,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:06:03,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:06:03,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876928908] [2024-10-14 06:06:03,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:06:03,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:06:03,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:06:03,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:06:03,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:06:03,241 INFO L87 Difference]: Start difference. First operand 934 states and 1248 transitions. Second operand has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-14 06:06:03,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:06:03,378 INFO L93 Difference]: Finished difference Result 1500 states and 2016 transitions. [2024-10-14 06:06:03,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:06:03,379 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 464 [2024-10-14 06:06:03,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:06:03,382 INFO L225 Difference]: With dead ends: 1500 [2024-10-14 06:06:03,382 INFO L226 Difference]: Without dead ends: 934 [2024-10-14 06:06:03,384 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:06:03,384 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 1263 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1266 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:06:03,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1266 Valid, 1434 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:06:03,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2024-10-14 06:06:03,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 934. [2024-10-14 06:06:03,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 924 states have (on average 1.3322510822510822) internal successors, (1231), 924 states have internal predecessors, (1231), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:06:03,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1247 transitions. [2024-10-14 06:06:03,412 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1247 transitions. Word has length 464 [2024-10-14 06:06:03,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:06:03,413 INFO L471 AbstractCegarLoop]: Abstraction has 934 states and 1247 transitions. [2024-10-14 06:06:03,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.4) internal successors, (437), 5 states have internal predecessors, (437), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-14 06:06:03,413 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1247 transitions. [2024-10-14 06:06:03,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2024-10-14 06:06:03,417 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:06:03,418 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:06:03,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-10-14 06:06:03,418 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:06:03,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:06:03,419 INFO L85 PathProgramCache]: Analyzing trace with hash -15538561, now seen corresponding path program 1 times [2024-10-14 06:06:03,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:06:03,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766880610] [2024-10-14 06:06:03,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:06:03,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:06:03,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:04,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:06:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:04,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:06:04,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:04,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:06:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:04,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2024-10-14 06:06:04,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:04,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2024-10-14 06:06:04,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:04,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2024-10-14 06:06:04,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:04,357 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:06:04,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:06:04,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766880610] [2024-10-14 06:06:04,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766880610] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:06:04,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:06:04,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:06:04,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877552033] [2024-10-14 06:06:04,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:06:04,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:06:04,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:06:04,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:06:04,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:06:04,361 INFO L87 Difference]: Start difference. First operand 934 states and 1247 transitions. Second operand has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-14 06:06:04,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:06:04,512 INFO L93 Difference]: Finished difference Result 1500 states and 2014 transitions. [2024-10-14 06:06:04,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:06:04,514 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 465 [2024-10-14 06:06:04,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:06:04,518 INFO L225 Difference]: With dead ends: 1500 [2024-10-14 06:06:04,518 INFO L226 Difference]: Without dead ends: 934 [2024-10-14 06:06:04,520 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:06:04,521 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 688 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:06:04,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 1440 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:06:04,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2024-10-14 06:06:04,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 934. [2024-10-14 06:06:04,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 924 states have (on average 1.3311688311688312) internal successors, (1230), 924 states have internal predecessors, (1230), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:06:04,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1246 transitions. [2024-10-14 06:06:04,548 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1246 transitions. Word has length 465 [2024-10-14 06:06:04,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:06:04,549 INFO L471 AbstractCegarLoop]: Abstraction has 934 states and 1246 transitions. [2024-10-14 06:06:04,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.6) internal successors, (438), 5 states have internal predecessors, (438), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-14 06:06:04,549 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1246 transitions. [2024-10-14 06:06:04,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2024-10-14 06:06:04,553 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:06:04,553 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:06:04,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-10-14 06:06:04,554 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:06:04,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:06:04,555 INFO L85 PathProgramCache]: Analyzing trace with hash 530120541, now seen corresponding path program 1 times [2024-10-14 06:06:04,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:06:04,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713092404] [2024-10-14 06:06:04,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:06:04,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:06:04,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:05,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:06:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:05,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:06:05,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:05,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:06:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:05,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2024-10-14 06:06:05,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:05,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 357 [2024-10-14 06:06:05,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:05,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 371 [2024-10-14 06:06:05,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:05,622 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:06:05,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:06:05,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713092404] [2024-10-14 06:06:05,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713092404] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:06:05,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:06:05,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:06:05,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509245306] [2024-10-14 06:06:05,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:06:05,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:06:05,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:06:05,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:06:05,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:06:05,626 INFO L87 Difference]: Start difference. First operand 934 states and 1246 transitions. Second operand has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-14 06:06:05,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:06:05,782 INFO L93 Difference]: Finished difference Result 1500 states and 2012 transitions. [2024-10-14 06:06:05,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:06:05,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 466 [2024-10-14 06:06:05,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:06:05,786 INFO L225 Difference]: With dead ends: 1500 [2024-10-14 06:06:05,786 INFO L226 Difference]: Without dead ends: 934 [2024-10-14 06:06:05,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:06:05,789 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 680 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 1440 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:06:05,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [683 Valid, 1440 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:06:05,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2024-10-14 06:06:05,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 934. [2024-10-14 06:06:05,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 924 states have (on average 1.33008658008658) internal successors, (1229), 924 states have internal predecessors, (1229), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:06:05,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1245 transitions. [2024-10-14 06:06:05,827 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1245 transitions. Word has length 466 [2024-10-14 06:06:05,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:06:05,828 INFO L471 AbstractCegarLoop]: Abstraction has 934 states and 1245 transitions. [2024-10-14 06:06:05,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 87.8) internal successors, (439), 5 states have internal predecessors, (439), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-14 06:06:05,828 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1245 transitions. [2024-10-14 06:06:05,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2024-10-14 06:06:05,832 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:06:05,832 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:06:05,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-10-14 06:06:05,833 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:06:05,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:06:05,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1517534742, now seen corresponding path program 1 times [2024-10-14 06:06:05,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:06:05,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847106294] [2024-10-14 06:06:05,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:06:05,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:06:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:06,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:06:06,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:06,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:06:06,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:06,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:06:06,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:06,795 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2024-10-14 06:06:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:06,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2024-10-14 06:06:06,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:06,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2024-10-14 06:06:06,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:06,800 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:06:06,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:06:06,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847106294] [2024-10-14 06:06:06,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847106294] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:06:06,800 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:06:06,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:06:06,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013506249] [2024-10-14 06:06:06,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:06:06,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:06:06,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:06:06,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:06:06,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:06:06,803 INFO L87 Difference]: Start difference. First operand 934 states and 1245 transitions. Second operand has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-14 06:06:06,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:06:06,989 INFO L93 Difference]: Finished difference Result 1500 states and 2010 transitions. [2024-10-14 06:06:06,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:06:06,991 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 467 [2024-10-14 06:06:06,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:06:06,994 INFO L225 Difference]: With dead ends: 1500 [2024-10-14 06:06:06,994 INFO L226 Difference]: Without dead ends: 934 [2024-10-14 06:06:06,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:06:06,996 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 1215 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:06:06,996 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1218 Valid, 1434 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:06:06,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2024-10-14 06:06:07,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 934. [2024-10-14 06:06:07,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 924 states have (on average 1.329004329004329) internal successors, (1228), 924 states have internal predecessors, (1228), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:06:07,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1244 transitions. [2024-10-14 06:06:07,025 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1244 transitions. Word has length 467 [2024-10-14 06:06:07,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:06:07,026 INFO L471 AbstractCegarLoop]: Abstraction has 934 states and 1244 transitions. [2024-10-14 06:06:07,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.0) internal successors, (440), 5 states have internal predecessors, (440), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-14 06:06:07,026 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1244 transitions. [2024-10-14 06:06:07,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2024-10-14 06:06:07,029 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:06:07,030 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:06:07,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-10-14 06:06:07,030 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:06:07,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:06:07,031 INFO L85 PathProgramCache]: Analyzing trace with hash 178220264, now seen corresponding path program 1 times [2024-10-14 06:06:07,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:06:07,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681331893] [2024-10-14 06:06:07,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:06:07,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:06:07,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:07,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-10-14 06:06:07,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:07,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-14 06:06:07,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:07,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-10-14 06:06:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:07,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2024-10-14 06:06:07,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:07,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2024-10-14 06:06:07,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:07,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 373 [2024-10-14 06:06:07,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:06:07,947 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-14 06:06:07,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:06:07,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681331893] [2024-10-14 06:06:07,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681331893] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:06:07,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:06:07,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:06:07,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916507749] [2024-10-14 06:06:07,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:06:07,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:06:07,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:06:07,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:06:07,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:06:07,951 INFO L87 Difference]: Start difference. First operand 934 states and 1244 transitions. Second operand has 5 states, 5 states have (on average 88.2) internal successors, (441), 5 states have internal predecessors, (441), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-14 06:06:08,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:06:08,102 INFO L93 Difference]: Finished difference Result 1500 states and 2008 transitions. [2024-10-14 06:06:08,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:06:08,103 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 88.2) internal successors, (441), 5 states have internal predecessors, (441), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 468 [2024-10-14 06:06:08,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:06:08,105 INFO L225 Difference]: With dead ends: 1500 [2024-10-14 06:06:08,105 INFO L226 Difference]: Without dead ends: 934 [2024-10-14 06:06:08,107 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:06:08,107 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 1199 mSDsluCounter, 718 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1202 SdHoareTripleChecker+Valid, 1434 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:06:08,108 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1202 Valid, 1434 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:06:08,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2024-10-14 06:06:08,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 934. [2024-10-14 06:06:08,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 934 states, 924 states have (on average 1.327922077922078) internal successors, (1227), 924 states have internal predecessors, (1227), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-14 06:06:08,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 934 states to 934 states and 1243 transitions. [2024-10-14 06:06:08,132 INFO L78 Accepts]: Start accepts. Automaton has 934 states and 1243 transitions. Word has length 468 [2024-10-14 06:06:08,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:06:08,133 INFO L471 AbstractCegarLoop]: Abstraction has 934 states and 1243 transitions. [2024-10-14 06:06:08,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 88.2) internal successors, (441), 5 states have internal predecessors, (441), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-14 06:06:08,134 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states and 1243 transitions. [2024-10-14 06:06:08,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 470 [2024-10-14 06:06:08,137 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:06:08,137 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:06:08,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-10-14 06:06:08,138 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:06:08,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:06:08,139 INFO L85 PathProgramCache]: Analyzing trace with hash -593376811, now seen corresponding path program 1 times [2024-10-14 06:06:08,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:06:08,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181179588] [2024-10-14 06:06:08,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:06:08,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:06:08,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat