./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p6.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p6.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 4b67d651ed8b1fa1f4edbbff70276f688183332c7d0932c0d0b5d67a2f44f4d5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 18:19:06,392 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 18:19:06,471 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-18 18:19:06,477 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 18:19:06,478 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 18:19:06,499 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 18:19:06,500 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 18:19:06,500 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 18:19:06,501 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 18:19:06,501 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 18:19:06,501 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 18:19:06,502 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 18:19:06,503 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 18:19:06,507 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 18:19:06,507 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 18:19:06,508 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 18:19:06,508 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 18:19:06,508 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 18:19:06,508 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 18:19:06,509 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 18:19:06,509 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 18:19:06,509 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 18:19:06,511 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 18:19:06,511 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 18:19:06,511 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 18:19:06,511 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 18:19:06,512 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 18:19:06,512 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 18:19:06,512 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 18:19:06,512 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 18:19:06,512 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 18:19:06,513 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 18:19:06,513 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 18:19:06,513 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 18:19:06,513 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 18:19:06,513 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 18:19:06,513 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 18:19:06,514 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 18:19:06,514 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 18:19:06,514 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b67d651ed8b1fa1f4edbbff70276f688183332c7d0932c0d0b5d67a2f44f4d5 [2024-11-18 18:19:06,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 18:19:06,812 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 18:19:06,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 18:19:06,817 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 18:19:06,818 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 18:19:06,819 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p6.c [2024-11-18 18:19:08,286 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 18:19:08,628 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 18:19:08,629 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p6.c [2024-11-18 18:19:08,657 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b3faba41/950c1a0738a5470f88febc35fc7ab37d/FLAG764bc97ab [2024-11-18 18:19:08,677 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2b3faba41/950c1a0738a5470f88febc35fc7ab37d [2024-11-18 18:19:08,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 18:19:08,681 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 18:19:08,684 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 18:19:08,685 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 18:19:08,690 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 18:19:08,691 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:19:08" (1/1) ... [2024-11-18 18:19:08,692 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dcb4b93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:19:08, skipping insertion in model container [2024-11-18 18:19:08,692 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:19:08" (1/1) ... [2024-11-18 18:19:08,758 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 18:19:09,032 WARN L250 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.vis_arrays_vsa16a_p6.c[1260,1273] [2024-11-18 18:19:09,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 18:19:09,451 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 18:19:09,464 WARN L250 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.vis_arrays_vsa16a_p6.c[1260,1273] [2024-11-18 18:19:09,638 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 18:19:09,655 INFO L204 MainTranslator]: Completed translation [2024-11-18 18:19:09,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:19:09 WrapperNode [2024-11-18 18:19:09,656 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 18:19:09,657 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 18:19:09,657 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 18:19:09,657 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 18:19:09,665 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:19:09" (1/1) ... [2024-11-18 18:19:09,731 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:19:09" (1/1) ... [2024-11-18 18:19:10,366 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 4536 [2024-11-18 18:19:10,367 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 18:19:10,368 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 18:19:10,368 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 18:19:10,369 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 18:19:10,379 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:19:09" (1/1) ... [2024-11-18 18:19:10,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:19:09" (1/1) ... [2024-11-18 18:19:10,490 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:19:09" (1/1) ... [2024-11-18 18:19:10,671 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]. [2024-11-18 18:19:10,672 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:19:09" (1/1) ... [2024-11-18 18:19:10,672 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:19:09" (1/1) ... [2024-11-18 18:19:10,917 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:19:09" (1/1) ... [2024-11-18 18:19:10,963 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:19:09" (1/1) ... [2024-11-18 18:19:11,000 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:19:09" (1/1) ... [2024-11-18 18:19:11,027 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:19:09" (1/1) ... [2024-11-18 18:19:11,151 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 18:19:11,153 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 18:19:11,154 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 18:19:11,154 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 18:19:11,155 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:19:09" (1/1) ... [2024-11-18 18:19:11,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 18:19:11,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 18:19:11,191 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) [2024-11-18 18:19:11,197 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 [2024-11-18 18:19:11,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 18:19:11,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 18:19:11,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 18:19:11,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 18:19:11,674 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 18:19:11,677 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 18:19:15,960 INFO L? ?]: Removed 2696 outVars from TransFormulas that were not future-live. [2024-11-18 18:19:15,960 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 18:19:15,998 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 18:19:15,998 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 18:19:15,998 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:19:15 BoogieIcfgContainer [2024-11-18 18:19:15,999 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 18:19:16,001 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 18:19:16,001 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 18:19:16,008 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 18:19:16,008 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:19:08" (1/3) ... [2024-11-18 18:19:16,009 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@165a8331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:19:16, skipping insertion in model container [2024-11-18 18:19:16,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:19:09" (2/3) ... [2024-11-18 18:19:16,009 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@165a8331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:19:16, skipping insertion in model container [2024-11-18 18:19:16,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:19:15" (3/3) ... [2024-11-18 18:19:16,010 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsa16a_p6.c [2024-11-18 18:19:16,027 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 18:19:16,027 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 18:19:16,135 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 18:19:16,143 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;@72c6ede, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 18:19:16,143 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 18:19:16,153 INFO L276 IsEmpty]: Start isEmpty. Operand has 1359 states, 1357 states have (on average 1.4996315401621223) internal successors, (2035), 1358 states have internal predecessors, (2035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:16,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-18 18:19:16,166 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:19:16,167 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:19:16,167 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:19:16,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:19:16,173 INFO L85 PathProgramCache]: Analyzing trace with hash -725709712, now seen corresponding path program 1 times [2024-11-18 18:19:16,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:19:16,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147882436] [2024-11-18 18:19:16,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:19:16,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:19:16,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:19:17,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:19:17,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:19:17,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147882436] [2024-11-18 18:19:17,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147882436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:19:17,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:19:17,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 18:19:17,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891980794] [2024-11-18 18:19:17,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:19:17,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 18:19:17,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:19:17,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 18:19:17,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 18:19:17,067 INFO L87 Difference]: Start difference. First operand has 1359 states, 1357 states have (on average 1.4996315401621223) internal successors, (2035), 1358 states have internal predecessors, (2035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:17,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:19:17,218 INFO L93 Difference]: Finished difference Result 2663 states and 3991 transitions. [2024-11-18 18:19:17,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 18:19:17,221 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-18 18:19:17,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:19:17,249 INFO L225 Difference]: With dead ends: 2663 [2024-11-18 18:19:17,249 INFO L226 Difference]: Without dead ends: 1358 [2024-11-18 18:19:17,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 18:19:17,260 INFO L432 NwaCegarLoop]: 2029 mSDtfsCounter, 0 mSDsluCounter, 4052 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6081 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:19:17,261 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6081 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:19:17,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1358 states. [2024-11-18 18:19:17,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1358 to 1358. [2024-11-18 18:19:17,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1358 states, 1357 states have (on average 1.4981577008106117) internal successors, (2033), 1357 states have internal predecessors, (2033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:17,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1358 states to 1358 states and 2033 transitions. [2024-11-18 18:19:17,361 INFO L78 Accepts]: Start accepts. Automaton has 1358 states and 2033 transitions. Word has length 51 [2024-11-18 18:19:17,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:19:17,362 INFO L471 AbstractCegarLoop]: Abstraction has 1358 states and 2033 transitions. [2024-11-18 18:19:17,362 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:17,363 INFO L276 IsEmpty]: Start isEmpty. Operand 1358 states and 2033 transitions. [2024-11-18 18:19:17,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-18 18:19:17,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:19:17,364 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:19:17,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 18:19:17,365 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:19:17,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:19:17,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1020469140, now seen corresponding path program 1 times [2024-11-18 18:19:17,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:19:17,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161447467] [2024-11-18 18:19:17,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:19:17,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:19:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:19:17,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:19:17,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:19:17,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161447467] [2024-11-18 18:19:17,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161447467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:19:17,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:19:17,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 18:19:17,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511926316] [2024-11-18 18:19:17,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:19:17,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 18:19:17,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:19:17,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 18:19:17,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 18:19:17,660 INFO L87 Difference]: Start difference. First operand 1358 states and 2033 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:17,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:19:17,743 INFO L93 Difference]: Finished difference Result 2664 states and 3989 transitions. [2024-11-18 18:19:17,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 18:19:17,743 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2024-11-18 18:19:17,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:19:17,749 INFO L225 Difference]: With dead ends: 2664 [2024-11-18 18:19:17,750 INFO L226 Difference]: Without dead ends: 1360 [2024-11-18 18:19:17,754 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 18:19:17,756 INFO L432 NwaCegarLoop]: 2029 mSDtfsCounter, 0 mSDsluCounter, 4048 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6077 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:19:17,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6077 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:19:17,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2024-11-18 18:19:17,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 1360. [2024-11-18 18:19:17,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1360 states, 1359 states have (on average 1.4974245768947756) internal successors, (2035), 1359 states have internal predecessors, (2035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:17,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 2035 transitions. [2024-11-18 18:19:17,793 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 2035 transitions. Word has length 52 [2024-11-18 18:19:17,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:19:17,794 INFO L471 AbstractCegarLoop]: Abstraction has 1360 states and 2035 transitions. [2024-11-18 18:19:17,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:17,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 2035 transitions. [2024-11-18 18:19:17,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-18 18:19:17,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:19:17,797 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:19:17,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 18:19:17,798 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:19:17,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:19:17,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1627229385, now seen corresponding path program 1 times [2024-11-18 18:19:17,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:19:17,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693128355] [2024-11-18 18:19:17,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:19:17,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:19:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:19:18,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:19:18,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:19:18,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693128355] [2024-11-18 18:19:18,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693128355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:19:18,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:19:18,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 18:19:18,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467990754] [2024-11-18 18:19:18,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:19:18,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 18:19:18,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:19:18,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 18:19:18,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 18:19:18,401 INFO L87 Difference]: Start difference. First operand 1360 states and 2035 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:18,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:19:18,446 INFO L93 Difference]: Finished difference Result 2666 states and 3990 transitions. [2024-11-18 18:19:18,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 18:19:18,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-11-18 18:19:18,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:19:18,452 INFO L225 Difference]: With dead ends: 2666 [2024-11-18 18:19:18,452 INFO L226 Difference]: Without dead ends: 1360 [2024-11-18 18:19:18,454 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 18:19:18,455 INFO L432 NwaCegarLoop]: 2026 mSDtfsCounter, 2 mSDsluCounter, 2023 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4049 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:19:18,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 4049 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:19:18,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2024-11-18 18:19:18,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 1360. [2024-11-18 18:19:18,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1360 states, 1359 states have (on average 1.4966887417218544) internal successors, (2034), 1359 states have internal predecessors, (2034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:18,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1360 states to 1360 states and 2034 transitions. [2024-11-18 18:19:18,527 INFO L78 Accepts]: Start accepts. Automaton has 1360 states and 2034 transitions. Word has length 53 [2024-11-18 18:19:18,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:19:18,527 INFO L471 AbstractCegarLoop]: Abstraction has 1360 states and 2034 transitions. [2024-11-18 18:19:18,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:18,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1360 states and 2034 transitions. [2024-11-18 18:19:18,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-18 18:19:18,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:19:18,529 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:19:18,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 18:19:18,529 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:19:18,530 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:19:18,530 INFO L85 PathProgramCache]: Analyzing trace with hash -41439398, now seen corresponding path program 1 times [2024-11-18 18:19:18,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:19:18,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682963817] [2024-11-18 18:19:18,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:19:18,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:19:18,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:19:18,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:19:19,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:19:19,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682963817] [2024-11-18 18:19:19,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682963817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:19:19,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:19:19,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 18:19:19,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783495114] [2024-11-18 18:19:19,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:19:19,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 18:19:19,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:19:19,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 18:19:19,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 18:19:19,004 INFO L87 Difference]: Start difference. First operand 1360 states and 2034 transitions. Second operand has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:19,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:19:19,153 INFO L93 Difference]: Finished difference Result 2676 states and 4002 transitions. [2024-11-18 18:19:19,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 18:19:19,154 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-18 18:19:19,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:19:19,159 INFO L225 Difference]: With dead ends: 2676 [2024-11-18 18:19:19,160 INFO L226 Difference]: Without dead ends: 1370 [2024-11-18 18:19:19,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 18:19:19,164 INFO L432 NwaCegarLoop]: 2022 mSDtfsCounter, 4 mSDsluCounter, 10095 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 12117 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:19:19,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 12117 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:19:19,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1370 states. [2024-11-18 18:19:19,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1370 to 1369. [2024-11-18 18:19:19,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1369 states, 1368 states have (on average 1.4956140350877194) internal successors, (2046), 1368 states have internal predecessors, (2046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:19,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1369 states to 1369 states and 2046 transitions. [2024-11-18 18:19:19,198 INFO L78 Accepts]: Start accepts. Automaton has 1369 states and 2046 transitions. Word has length 54 [2024-11-18 18:19:19,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:19:19,198 INFO L471 AbstractCegarLoop]: Abstraction has 1369 states and 2046 transitions. [2024-11-18 18:19:19,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:19,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1369 states and 2046 transitions. [2024-11-18 18:19:19,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-18 18:19:19,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:19:19,201 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:19:19,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 18:19:19,202 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:19:19,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:19:19,203 INFO L85 PathProgramCache]: Analyzing trace with hash -499616062, now seen corresponding path program 1 times [2024-11-18 18:19:19,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:19:19,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096884126] [2024-11-18 18:19:19,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:19:19,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:19:19,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:19:19,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:19:19,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:19:19,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096884126] [2024-11-18 18:19:19,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096884126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:19:19,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:19:19,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 18:19:19,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326383574] [2024-11-18 18:19:19,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:19:19,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 18:19:19,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:19:19,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 18:19:19,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:19:19,486 INFO L87 Difference]: Start difference. First operand 1369 states and 2046 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:19,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:19:19,584 INFO L93 Difference]: Finished difference Result 2694 states and 4027 transitions. [2024-11-18 18:19:19,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 18:19:19,584 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-18 18:19:19,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:19:19,589 INFO L225 Difference]: With dead ends: 2694 [2024-11-18 18:19:19,590 INFO L226 Difference]: Without dead ends: 1379 [2024-11-18 18:19:19,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:19:19,593 INFO L432 NwaCegarLoop]: 2027 mSDtfsCounter, 8 mSDsluCounter, 8090 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 10117 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:19:19,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 10117 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:19:19,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1379 states. [2024-11-18 18:19:19,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1379 to 1379. [2024-11-18 18:19:19,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1379 states, 1378 states have (on average 1.4949201741654572) internal successors, (2060), 1378 states have internal predecessors, (2060), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:19,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 2060 transitions. [2024-11-18 18:19:19,621 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 2060 transitions. Word has length 55 [2024-11-18 18:19:19,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:19:19,622 INFO L471 AbstractCegarLoop]: Abstraction has 1379 states and 2060 transitions. [2024-11-18 18:19:19,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:19,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 2060 transitions. [2024-11-18 18:19:19,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-18 18:19:19,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:19:19,624 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:19:19,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 18:19:19,624 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:19:19,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:19:19,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1556487095, now seen corresponding path program 1 times [2024-11-18 18:19:19,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:19:19,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178732608] [2024-11-18 18:19:19,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:19:19,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:19:19,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:19:20,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:19:20,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:19:20,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178732608] [2024-11-18 18:19:20,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178732608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:19:20,294 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:19:20,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 18:19:20,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548546831] [2024-11-18 18:19:20,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:19:20,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 18:19:20,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:19:20,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 18:19:20,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-18 18:19:20,295 INFO L87 Difference]: Start difference. First operand 1379 states and 2060 transitions. Second operand has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:20,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:19:20,536 INFO L93 Difference]: Finished difference Result 2711 states and 4049 transitions. [2024-11-18 18:19:20,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 18:19:20,536 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-18 18:19:20,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:19:20,543 INFO L225 Difference]: With dead ends: 2711 [2024-11-18 18:19:20,543 INFO L226 Difference]: Without dead ends: 1386 [2024-11-18 18:19:20,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-18 18:19:20,548 INFO L432 NwaCegarLoop]: 2017 mSDtfsCounter, 2000 mSDsluCounter, 12087 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2000 SdHoareTripleChecker+Valid, 14104 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:19:20,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2000 Valid, 14104 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:19:20,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1386 states. [2024-11-18 18:19:20,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1386 to 1383. [2024-11-18 18:19:20,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1383 states, 1382 states have (on average 1.4942112879884226) internal successors, (2065), 1382 states have internal predecessors, (2065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:20,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 2065 transitions. [2024-11-18 18:19:20,580 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 2065 transitions. Word has length 56 [2024-11-18 18:19:20,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:19:20,581 INFO L471 AbstractCegarLoop]: Abstraction has 1383 states and 2065 transitions. [2024-11-18 18:19:20,581 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.6) internal successors, (56), 10 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:20,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 2065 transitions. [2024-11-18 18:19:20,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-18 18:19:20,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:19:20,585 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:19:20,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 18:19:20,586 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:19:20,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:19:20,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1131234223, now seen corresponding path program 1 times [2024-11-18 18:19:20,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:19:20,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573720376] [2024-11-18 18:19:20,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:19:20,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:19:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:19:20,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:19:20,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:19:20,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573720376] [2024-11-18 18:19:20,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573720376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:19:20,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:19:20,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 18:19:20,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609268010] [2024-11-18 18:19:20,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:19:20,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 18:19:20,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:19:20,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 18:19:20,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:19:20,991 INFO L87 Difference]: Start difference. First operand 1383 states and 2065 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:21,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:19:21,149 INFO L93 Difference]: Finished difference Result 2714 states and 4053 transitions. [2024-11-18 18:19:21,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 18:19:21,150 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-18 18:19:21,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:19:21,156 INFO L225 Difference]: With dead ends: 2714 [2024-11-18 18:19:21,156 INFO L226 Difference]: Without dead ends: 1385 [2024-11-18 18:19:21,158 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-18 18:19:21,159 INFO L432 NwaCegarLoop]: 2019 mSDtfsCounter, 2000 mSDsluCounter, 6042 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2000 SdHoareTripleChecker+Valid, 8061 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:19:21,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2000 Valid, 8061 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:19:21,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1385 states. [2024-11-18 18:19:21,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1385 to 1385. [2024-11-18 18:19:21,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1385 states, 1384 states have (on average 1.4934971098265897) internal successors, (2067), 1384 states have internal predecessors, (2067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:21,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1385 states to 1385 states and 2067 transitions. [2024-11-18 18:19:21,189 INFO L78 Accepts]: Start accepts. Automaton has 1385 states and 2067 transitions. Word has length 56 [2024-11-18 18:19:21,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:19:21,189 INFO L471 AbstractCegarLoop]: Abstraction has 1385 states and 2067 transitions. [2024-11-18 18:19:21,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:21,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1385 states and 2067 transitions. [2024-11-18 18:19:21,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-18 18:19:21,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:19:21,190 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:19:21,191 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 18:19:21,191 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:19:21,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:19:21,191 INFO L85 PathProgramCache]: Analyzing trace with hash 412315899, now seen corresponding path program 1 times [2024-11-18 18:19:21,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:19:21,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861463533] [2024-11-18 18:19:21,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:19:21,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:19:21,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:19:21,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:19:21,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:19:21,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861463533] [2024-11-18 18:19:21,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861463533] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:19:21,561 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:19:21,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 18:19:21,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538109579] [2024-11-18 18:19:21,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:19:21,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 18:19:21,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:19:21,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 18:19:21,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:19:21,565 INFO L87 Difference]: Start difference. First operand 1385 states and 2067 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:21,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:19:21,699 INFO L93 Difference]: Finished difference Result 2724 states and 4065 transitions. [2024-11-18 18:19:21,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 18:19:21,699 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-18 18:19:21,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:19:21,705 INFO L225 Difference]: With dead ends: 2724 [2024-11-18 18:19:21,705 INFO L226 Difference]: Without dead ends: 1393 [2024-11-18 18:19:21,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-18 18:19:21,709 INFO L432 NwaCegarLoop]: 2024 mSDtfsCounter, 2011 mSDsluCounter, 6060 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2011 SdHoareTripleChecker+Valid, 8084 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:19:21,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2011 Valid, 8084 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:19:21,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2024-11-18 18:19:21,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1389. [2024-11-18 18:19:21,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1389 states, 1388 states have (on average 1.4935158501440922) internal successors, (2073), 1388 states have internal predecessors, (2073), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:21,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1389 states to 1389 states and 2073 transitions. [2024-11-18 18:19:21,743 INFO L78 Accepts]: Start accepts. Automaton has 1389 states and 2073 transitions. Word has length 57 [2024-11-18 18:19:21,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:19:21,743 INFO L471 AbstractCegarLoop]: Abstraction has 1389 states and 2073 transitions. [2024-11-18 18:19:21,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:21,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1389 states and 2073 transitions. [2024-11-18 18:19:21,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-18 18:19:21,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:19:21,745 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:19:21,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 18:19:21,745 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:19:21,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:19:21,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1723962207, now seen corresponding path program 1 times [2024-11-18 18:19:21,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:19:21,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298396064] [2024-11-18 18:19:21,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:19:21,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:19:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:19:22,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:19:22,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:19:22,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298396064] [2024-11-18 18:19:22,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298396064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:19:22,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:19:22,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 18:19:22,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035714414] [2024-11-18 18:19:22,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:19:22,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 18:19:22,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:19:22,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 18:19:22,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 18:19:22,179 INFO L87 Difference]: Start difference. First operand 1389 states and 2073 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:22,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:19:22,359 INFO L93 Difference]: Finished difference Result 3063 states and 4565 transitions. [2024-11-18 18:19:22,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 18:19:22,360 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-18 18:19:22,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:19:22,369 INFO L225 Difference]: With dead ends: 3063 [2024-11-18 18:19:22,370 INFO L226 Difference]: Without dead ends: 1728 [2024-11-18 18:19:22,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:19:22,374 INFO L432 NwaCegarLoop]: 2017 mSDtfsCounter, 2888 mSDsluCounter, 4032 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2888 SdHoareTripleChecker+Valid, 6049 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:19:22,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2888 Valid, 6049 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 18:19:22,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2024-11-18 18:19:22,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1435. [2024-11-18 18:19:22,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1435 states, 1434 states have (on average 1.49023709902371) internal successors, (2137), 1434 states have internal predecessors, (2137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:22,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1435 states to 1435 states and 2137 transitions. [2024-11-18 18:19:22,415 INFO L78 Accepts]: Start accepts. Automaton has 1435 states and 2137 transitions. Word has length 57 [2024-11-18 18:19:22,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:19:22,415 INFO L471 AbstractCegarLoop]: Abstraction has 1435 states and 2137 transitions. [2024-11-18 18:19:22,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:22,416 INFO L276 IsEmpty]: Start isEmpty. Operand 1435 states and 2137 transitions. [2024-11-18 18:19:22,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-18 18:19:22,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:19:22,417 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:19:22,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 18:19:22,417 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:19:22,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:19:22,421 INFO L85 PathProgramCache]: Analyzing trace with hash -713745035, now seen corresponding path program 1 times [2024-11-18 18:19:22,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:19:22,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433834972] [2024-11-18 18:19:22,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:19:22,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:19:22,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:19:23,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:19:23,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:19:23,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433834972] [2024-11-18 18:19:23,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433834972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:19:23,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:19:23,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 18:19:23,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753955812] [2024-11-18 18:19:23,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:19:23,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 18:19:23,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:19:23,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 18:19:23,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-18 18:19:23,188 INFO L87 Difference]: Start difference. First operand 1435 states and 2137 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:23,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:19:23,562 INFO L93 Difference]: Finished difference Result 3059 states and 4558 transitions. [2024-11-18 18:19:23,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 18:19:23,563 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-18 18:19:23,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:19:23,569 INFO L225 Difference]: With dead ends: 3059 [2024-11-18 18:19:23,570 INFO L226 Difference]: Without dead ends: 1724 [2024-11-18 18:19:23,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-11-18 18:19:23,573 INFO L432 NwaCegarLoop]: 2009 mSDtfsCounter, 2916 mSDsluCounter, 10469 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2916 SdHoareTripleChecker+Valid, 12478 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 18:19:23,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2916 Valid, 12478 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 18:19:23,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1724 states. [2024-11-18 18:19:23,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1724 to 1439. [2024-11-18 18:19:23,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1439 states, 1438 states have (on average 1.4895688456189151) internal successors, (2142), 1438 states have internal predecessors, (2142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:23,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 2142 transitions. [2024-11-18 18:19:23,605 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 2142 transitions. Word has length 58 [2024-11-18 18:19:23,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:19:23,606 INFO L471 AbstractCegarLoop]: Abstraction has 1439 states and 2142 transitions. [2024-11-18 18:19:23,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:23,606 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 2142 transitions. [2024-11-18 18:19:23,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-18 18:19:23,607 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:19:23,607 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:19:23,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 18:19:23,607 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:19:23,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:19:23,608 INFO L85 PathProgramCache]: Analyzing trace with hash -734874646, now seen corresponding path program 1 times [2024-11-18 18:19:23,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:19:23,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197885631] [2024-11-18 18:19:23,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:19:23,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:19:23,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:19:23,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:19:23,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:19:23,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197885631] [2024-11-18 18:19:23,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [197885631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:19:23,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:19:23,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 18:19:23,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770422607] [2024-11-18 18:19:23,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:19:23,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 18:19:23,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:19:23,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 18:19:23,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 18:19:23,810 INFO L87 Difference]: Start difference. First operand 1439 states and 2142 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:24,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:19:24,121 INFO L93 Difference]: Finished difference Result 3005 states and 4474 transitions. [2024-11-18 18:19:24,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 18:19:24,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 59 [2024-11-18 18:19:24,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:19:24,128 INFO L225 Difference]: With dead ends: 3005 [2024-11-18 18:19:24,128 INFO L226 Difference]: Without dead ends: 1626 [2024-11-18 18:19:24,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 18:19:24,131 INFO L432 NwaCegarLoop]: 1972 mSDtfsCounter, 2696 mSDsluCounter, 3937 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2696 SdHoareTripleChecker+Valid, 5909 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 18:19:24,131 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2696 Valid, 5909 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 18:19:24,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1626 states. [2024-11-18 18:19:24,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1626 to 1414. [2024-11-18 18:19:24,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1414 states, 1413 states have (on average 1.4897381457891012) internal successors, (2105), 1413 states have internal predecessors, (2105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:24,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1414 states to 1414 states and 2105 transitions. [2024-11-18 18:19:24,162 INFO L78 Accepts]: Start accepts. Automaton has 1414 states and 2105 transitions. Word has length 59 [2024-11-18 18:19:24,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:19:24,163 INFO L471 AbstractCegarLoop]: Abstraction has 1414 states and 2105 transitions. [2024-11-18 18:19:24,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:24,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states and 2105 transitions. [2024-11-18 18:19:24,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 711 [2024-11-18 18:19:24,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:19:24,179 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:19:24,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 18:19:24,179 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:19:24,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:19:24,180 INFO L85 PathProgramCache]: Analyzing trace with hash -655395248, now seen corresponding path program 1 times [2024-11-18 18:19:24,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:19:24,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889148945] [2024-11-18 18:19:24,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:19:24,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:19:34,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:19:40,310 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:19:40,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:19:40,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889148945] [2024-11-18 18:19:40,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889148945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:19:40,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:19:40,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 18:19:40,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438885081] [2024-11-18 18:19:40,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:19:40,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 18:19:40,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:19:40,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 18:19:40,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 18:19:40,314 INFO L87 Difference]: Start difference. First operand 1414 states and 2105 transitions. Second operand has 5 states, 5 states have (on average 142.0) internal successors, (710), 5 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:40,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:19:40,722 INFO L93 Difference]: Finished difference Result 3017 states and 4497 transitions. [2024-11-18 18:19:40,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 18:19:40,723 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 142.0) internal successors, (710), 5 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 710 [2024-11-18 18:19:40,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:19:40,729 INFO L225 Difference]: With dead ends: 3017 [2024-11-18 18:19:40,729 INFO L226 Difference]: Without dead ends: 1682 [2024-11-18 18:19:40,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-18 18:19:40,731 INFO L432 NwaCegarLoop]: 1973 mSDtfsCounter, 2841 mSDsluCounter, 3943 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2841 SdHoareTripleChecker+Valid, 5916 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 18:19:40,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2841 Valid, 5916 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 18:19:40,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2024-11-18 18:19:40,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1422. [2024-11-18 18:19:40,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1422 states, 1421 states have (on average 1.4869809992962701) internal successors, (2113), 1421 states have internal predecessors, (2113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:40,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1422 states to 1422 states and 2113 transitions. [2024-11-18 18:19:40,762 INFO L78 Accepts]: Start accepts. Automaton has 1422 states and 2113 transitions. Word has length 710 [2024-11-18 18:19:40,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:19:40,763 INFO L471 AbstractCegarLoop]: Abstraction has 1422 states and 2113 transitions. [2024-11-18 18:19:40,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 142.0) internal successors, (710), 5 states have internal predecessors, (710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:40,763 INFO L276 IsEmpty]: Start isEmpty. Operand 1422 states and 2113 transitions. [2024-11-18 18:19:40,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 712 [2024-11-18 18:19:40,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:19:40,777 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:19:40,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 18:19:40,777 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:19:40,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:19:40,778 INFO L85 PathProgramCache]: Analyzing trace with hash 2087961423, now seen corresponding path program 1 times [2024-11-18 18:19:40,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:19:40,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401775238] [2024-11-18 18:19:40,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:19:40,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:19:47,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:19:50,655 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:19:50,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:19:50,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401775238] [2024-11-18 18:19:50,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401775238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:19:50,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:19:50,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 18:19:50,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658459625] [2024-11-18 18:19:50,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:19:50,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 18:19:50,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:19:50,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 18:19:50,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 18:19:50,661 INFO L87 Difference]: Start difference. First operand 1422 states and 2113 transitions. Second operand has 5 states, 5 states have (on average 142.2) internal successors, (711), 5 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:50,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:19:50,909 INFO L93 Difference]: Finished difference Result 3017 states and 4496 transitions. [2024-11-18 18:19:50,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 18:19:50,910 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 142.2) internal successors, (711), 5 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 711 [2024-11-18 18:19:50,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:19:50,916 INFO L225 Difference]: With dead ends: 3017 [2024-11-18 18:19:50,916 INFO L226 Difference]: Without dead ends: 1682 [2024-11-18 18:19:50,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 18:19:50,919 INFO L432 NwaCegarLoop]: 1976 mSDtfsCounter, 2408 mSDsluCounter, 3949 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2408 SdHoareTripleChecker+Valid, 5925 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 [2024-11-18 18:19:50,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2408 Valid, 5925 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 18:19:50,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1682 states. [2024-11-18 18:19:51,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1682 to 1423. [2024-11-18 18:19:51,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1423 states, 1422 states have (on average 1.4866385372714486) internal successors, (2114), 1422 states have internal predecessors, (2114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:51,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1423 states to 1423 states and 2114 transitions. [2024-11-18 18:19:51,051 INFO L78 Accepts]: Start accepts. Automaton has 1423 states and 2114 transitions. Word has length 711 [2024-11-18 18:19:51,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:19:51,052 INFO L471 AbstractCegarLoop]: Abstraction has 1423 states and 2114 transitions. [2024-11-18 18:19:51,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 142.2) internal successors, (711), 5 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 18:19:51,053 INFO L276 IsEmpty]: Start isEmpty. Operand 1423 states and 2114 transitions. [2024-11-18 18:19:51,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2024-11-18 18:19:51,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:19:51,071 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:19:51,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 18:19:51,072 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:19:51,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:19:51,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1350123469, now seen corresponding path program 1 times [2024-11-18 18:19:51,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:19:51,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057049800] [2024-11-18 18:19:51,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:19:51,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:20:00,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:20:03,704 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:20:03,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:20:03,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057049800] [2024-11-18 18:20:03,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057049800] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 18:20:03,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497691390] [2024-11-18 18:20:03,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:20:03,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 18:20:03,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 18:20:03,708 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 18:20:03,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 18:20:09,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:20:09,143 INFO L255 TraceCheckSpWp]: Trace formula consists of 4621 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-18 18:20:09,187 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 18:20:12,000 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:20:12,001 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 18:20:15,678 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 8 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 18:20:15,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497691390] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 18:20:15,679 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 18:20:15,679 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 8] total 19 [2024-11-18 18:20:15,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708069388] [2024-11-18 18:20:15,680 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 18:20:15,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-18 18:20:15,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:20:15,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-18 18:20:15,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-11-18 18:20:15,689 INFO L87 Difference]: Start difference. First operand 1423 states and 2114 transitions. Second operand has 19 states, 19 states have (on average 111.36842105263158) internal successors, (2116), 19 states have internal predecessors, (2116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)