./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem19_label43.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d 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/eca-rers2012/Problem19_label43.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 32bit --witnessprinter.graph.data.programhash 62761b3785e62b00e38a2b72a515b0478c38d00e83f95ad63b6d7081302ecf99 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 11:53:06,183 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 11:53:06,249 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 11:53:06,254 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 11:53:06,257 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 11:53:06,283 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 11:53:06,284 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 11:53:06,284 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 11:53:06,285 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 11:53:06,286 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 11:53:06,287 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 11:53:06,287 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 11:53:06,288 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 11:53:06,290 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 11:53:06,291 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 11:53:06,291 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 11:53:06,291 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 11:53:06,292 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 11:53:06,292 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 11:53:06,292 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 11:53:06,292 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 11:53:06,296 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 11:53:06,296 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 11:53:06,296 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 11:53:06,297 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 11:53:06,297 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 11:53:06,297 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 11:53:06,297 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 11:53:06,298 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 11:53:06,298 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 11:53:06,298 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 11:53:06,298 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 11:53:06,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 11:53:06,299 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 11:53:06,299 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 11:53:06,299 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 11:53:06,300 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 11:53:06,300 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 11:53:06,300 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 11:53:06,300 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 11:53:06,301 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 11:53:06,301 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 11:53:06,301 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62761b3785e62b00e38a2b72a515b0478c38d00e83f95ad63b6d7081302ecf99 [2024-11-08 11:53:06,541 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 11:53:06,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 11:53:06,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 11:53:06,572 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 11:53:06,573 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 11:53:06,574 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem19_label43.c [2024-11-08 11:53:08,093 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 11:53:08,618 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 11:53:08,619 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem19_label43.c [2024-11-08 11:53:08,677 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f06129706/0971e9d002394bf2bbb928f42ca40a13/FLAG48c616d69 [2024-11-08 11:53:09,158 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f06129706/0971e9d002394bf2bbb928f42ca40a13 [2024-11-08 11:53:09,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 11:53:09,162 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 11:53:09,163 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 11:53:09,163 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 11:53:09,171 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 11:53:09,172 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:53:09" (1/1) ... [2024-11-08 11:53:09,175 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32008579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:09, skipping insertion in model container [2024-11-08 11:53:09,175 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:53:09" (1/1) ... [2024-11-08 11:53:09,387 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 11:53:09,641 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/eca-rers2012/Problem19_label43.c[3247,3260] [2024-11-08 11:53:10,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 11:53:10,838 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 11:53:10,857 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/eca-rers2012/Problem19_label43.c[3247,3260] [2024-11-08 11:53:11,591 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 11:53:11,627 INFO L204 MainTranslator]: Completed translation [2024-11-08 11:53:11,628 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:11 WrapperNode [2024-11-08 11:53:11,628 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 11:53:11,629 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 11:53:11,629 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 11:53:11,629 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 11:53:11,635 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:11" (1/1) ... [2024-11-08 11:53:11,713 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:11" (1/1) ... [2024-11-08 11:53:12,497 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 9431 [2024-11-08 11:53:12,498 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 11:53:12,499 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 11:53:12,500 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 11:53:12,500 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 11:53:12,514 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:11" (1/1) ... [2024-11-08 11:53:12,515 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:11" (1/1) ... [2024-11-08 11:53:12,737 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:11" (1/1) ... [2024-11-08 11:53:13,208 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]. [2024-11-08 11:53:13,209 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:11" (1/1) ... [2024-11-08 11:53:13,209 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:11" (1/1) ... [2024-11-08 11:53:13,600 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:11" (1/1) ... [2024-11-08 11:53:13,645 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:11" (1/1) ... [2024-11-08 11:53:13,691 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:11" (1/1) ... [2024-11-08 11:53:13,721 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:11" (1/1) ... [2024-11-08 11:53:13,830 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 11:53:13,832 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 11:53:13,832 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 11:53:13,832 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 11:53:13,833 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:11" (1/1) ... [2024-11-08 11:53:13,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 11:53:13,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:53:13,864 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) [2024-11-08 11:53:13,869 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 [2024-11-08 11:53:13,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 11:53:13,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 11:53:13,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 11:53:13,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 11:53:13,992 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 11:53:13,994 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 11:53:21,740 INFO L? ?]: Removed 1320 outVars from TransFormulas that were not future-live. [2024-11-08 11:53:21,741 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 11:53:21,797 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 11:53:21,800 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 11:53:21,800 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:53:21 BoogieIcfgContainer [2024-11-08 11:53:21,801 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 11:53:21,804 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 11:53:21,804 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 11:53:21,808 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 11:53:21,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:53:09" (1/3) ... [2024-11-08 11:53:21,809 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee664cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:53:21, skipping insertion in model container [2024-11-08 11:53:21,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:53:11" (2/3) ... [2024-11-08 11:53:21,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ee664cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:53:21, skipping insertion in model container [2024-11-08 11:53:21,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:53:21" (3/3) ... [2024-11-08 11:53:21,812 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label43.c [2024-11-08 11:53:21,830 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 11:53:21,830 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 11:53:21,943 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 11:53:21,950 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;@2c58b581, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 11:53:21,951 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 11:53:21,965 INFO L276 IsEmpty]: Start isEmpty. Operand has 1748 states, 1746 states have (on average 1.8699885452462772) internal successors, (3265), 1747 states have internal predecessors, (3265), 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) [2024-11-08 11:53:21,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-08 11:53:21,972 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:53:21,973 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] [2024-11-08 11:53:21,973 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:53:21,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:53:21,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1644072970, now seen corresponding path program 1 times [2024-11-08 11:53:21,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:53:21,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083496633] [2024-11-08 11:53:21,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:53:21,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:53:22,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:53:22,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:53:22,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:53:22,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083496633] [2024-11-08 11:53:22,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083496633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:53:22,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:53:22,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:53:22,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68235255] [2024-11-08 11:53:22,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:53:22,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:53:22,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:53:22,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:53:22,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:53:22,359 INFO L87 Difference]: Start difference. First operand has 1748 states, 1746 states have (on average 1.8699885452462772) internal successors, (3265), 1747 states have internal predecessors, (3265), 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 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 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) [2024-11-08 11:53:28,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:53:28,617 INFO L93 Difference]: Finished difference Result 4919 states and 9313 transitions. [2024-11-08 11:53:28,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:53:28,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 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 22 [2024-11-08 11:53:28,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:53:28,660 INFO L225 Difference]: With dead ends: 4919 [2024-11-08 11:53:28,660 INFO L226 Difference]: Without dead ends: 3107 [2024-11-08 11:53:28,672 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:53:28,678 INFO L432 NwaCegarLoop]: 1276 mSDtfsCounter, 1531 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 4638 mSolverCounterSat, 1110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 1457 SdHoareTripleChecker+Invalid, 5748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1110 IncrementalHoareTripleChecker+Valid, 4638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:53:28,680 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1531 Valid, 1457 Invalid, 5748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1110 Valid, 4638 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-08 11:53:28,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3107 states. [2024-11-08 11:53:28,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3107 to 3106. [2024-11-08 11:53:28,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3106 states, 3105 states have (on average 1.652818035426731) internal successors, (5132), 3105 states have internal predecessors, (5132), 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) [2024-11-08 11:53:28,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3106 states to 3106 states and 5132 transitions. [2024-11-08 11:53:28,833 INFO L78 Accepts]: Start accepts. Automaton has 3106 states and 5132 transitions. Word has length 22 [2024-11-08 11:53:28,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:53:28,833 INFO L471 AbstractCegarLoop]: Abstraction has 3106 states and 5132 transitions. [2024-11-08 11:53:28,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 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) [2024-11-08 11:53:28,834 INFO L276 IsEmpty]: Start isEmpty. Operand 3106 states and 5132 transitions. [2024-11-08 11:53:28,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-08 11:53:28,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:53:28,839 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] [2024-11-08 11:53:28,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 11:53:28,839 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:53:28,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:53:28,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1906323970, now seen corresponding path program 1 times [2024-11-08 11:53:28,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:53:28,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34363018] [2024-11-08 11:53:28,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:53:28,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:53:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:53:29,244 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:53:29,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:53:29,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34363018] [2024-11-08 11:53:29,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34363018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:53:29,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:53:29,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:53:29,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691865617] [2024-11-08 11:53:29,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:53:29,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:53:29,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:53:29,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:53:29,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:53:29,250 INFO L87 Difference]: Start difference. First operand 3106 states and 5132 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 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) [2024-11-08 11:53:39,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:53:39,489 INFO L93 Difference]: Finished difference Result 10391 states and 16943 transitions. [2024-11-08 11:53:39,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:53:39,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2024-11-08 11:53:39,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:53:39,518 INFO L225 Difference]: With dead ends: 10391 [2024-11-08 11:53:39,518 INFO L226 Difference]: Without dead ends: 7287 [2024-11-08 11:53:39,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 11:53:39,526 INFO L432 NwaCegarLoop]: 1842 mSDtfsCounter, 4208 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 11122 mSolverCounterSat, 1405 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4208 SdHoareTripleChecker+Valid, 2104 SdHoareTripleChecker+Invalid, 12527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1405 IncrementalHoareTripleChecker+Valid, 11122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:53:39,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4208 Valid, 2104 Invalid, 12527 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1405 Valid, 11122 Invalid, 0 Unknown, 0 Unchecked, 10.0s Time] [2024-11-08 11:53:39,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7287 states. [2024-11-08 11:53:39,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7287 to 7236. [2024-11-08 11:53:39,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7236 states, 7235 states have (on average 1.5214927436074637) internal successors, (11008), 7235 states have internal predecessors, (11008), 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) [2024-11-08 11:53:39,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7236 states to 7236 states and 11008 transitions. [2024-11-08 11:53:39,653 INFO L78 Accepts]: Start accepts. Automaton has 7236 states and 11008 transitions. Word has length 91 [2024-11-08 11:53:39,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:53:39,654 INFO L471 AbstractCegarLoop]: Abstraction has 7236 states and 11008 transitions. [2024-11-08 11:53:39,654 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 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) [2024-11-08 11:53:39,654 INFO L276 IsEmpty]: Start isEmpty. Operand 7236 states and 11008 transitions. [2024-11-08 11:53:39,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2024-11-08 11:53:39,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:53:39,657 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] [2024-11-08 11:53:39,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 11:53:39,658 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:53:39,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:53:39,658 INFO L85 PathProgramCache]: Analyzing trace with hash 275460643, now seen corresponding path program 1 times [2024-11-08 11:53:39,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:53:39,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484714849] [2024-11-08 11:53:39,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:53:39,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:53:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:53:40,099 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:53:40,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:53:40,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484714849] [2024-11-08 11:53:40,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484714849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:53:40,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:53:40,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:53:40,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281843147] [2024-11-08 11:53:40,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:53:40,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:53:40,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:53:40,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:53:40,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:53:40,103 INFO L87 Difference]: Start difference. First operand 7236 states and 11008 transitions. Second operand has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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) [2024-11-08 11:53:45,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:53:45,218 INFO L93 Difference]: Finished difference Result 15858 states and 25896 transitions. [2024-11-08 11:53:45,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:53:45,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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 257 [2024-11-08 11:53:45,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:53:45,249 INFO L225 Difference]: With dead ends: 15858 [2024-11-08 11:53:45,250 INFO L226 Difference]: Without dead ends: 9989 [2024-11-08 11:53:45,255 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 [2024-11-08 11:53:45,257 INFO L432 NwaCegarLoop]: 2905 mSDtfsCounter, 1589 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 3684 mSolverCounterSat, 1906 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1589 SdHoareTripleChecker+Valid, 3095 SdHoareTripleChecker+Invalid, 5590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1906 IncrementalHoareTripleChecker+Valid, 3684 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:53:45,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1589 Valid, 3095 Invalid, 5590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1906 Valid, 3684 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-08 11:53:45,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9989 states. [2024-11-08 11:53:45,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9989 to 9987. [2024-11-08 11:53:45,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9987 states, 9986 states have (on average 1.4261966753454838) internal successors, (14242), 9986 states have internal predecessors, (14242), 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) [2024-11-08 11:53:45,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9987 states to 9987 states and 14242 transitions. [2024-11-08 11:53:45,411 INFO L78 Accepts]: Start accepts. Automaton has 9987 states and 14242 transitions. Word has length 257 [2024-11-08 11:53:45,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:53:45,412 INFO L471 AbstractCegarLoop]: Abstraction has 9987 states and 14242 transitions. [2024-11-08 11:53:45,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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) [2024-11-08 11:53:45,412 INFO L276 IsEmpty]: Start isEmpty. Operand 9987 states and 14242 transitions. [2024-11-08 11:53:45,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2024-11-08 11:53:45,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:53:45,416 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:53:45,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 11:53:45,416 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:53:45,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:53:45,417 INFO L85 PathProgramCache]: Analyzing trace with hash 2127912823, now seen corresponding path program 1 times [2024-11-08 11:53:45,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:53:45,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709427664] [2024-11-08 11:53:45,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:53:45,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:53:45,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:53:46,108 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:53:46,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:53:46,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709427664] [2024-11-08 11:53:46,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709427664] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:53:46,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:53:46,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:53:46,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878773098] [2024-11-08 11:53:46,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:53:46,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:53:46,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:53:46,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:53:46,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:53:46,115 INFO L87 Difference]: Start difference. First operand 9987 states and 14242 transitions. Second operand has 4 states, 4 states have (on average 81.0) internal successors, (324), 3 states have internal predecessors, (324), 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) [2024-11-08 11:53:50,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:53:50,812 INFO L93 Difference]: Finished difference Result 18638 states and 27136 transitions. [2024-11-08 11:53:50,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:53:50,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 3 states have internal predecessors, (324), 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 324 [2024-11-08 11:53:50,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:53:50,837 INFO L225 Difference]: With dead ends: 18638 [2024-11-08 11:53:50,837 INFO L226 Difference]: Without dead ends: 9987 [2024-11-08 11:53:50,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:53:50,849 INFO L432 NwaCegarLoop]: 1764 mSDtfsCounter, 1151 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 5709 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 1943 SdHoareTripleChecker+Invalid, 5717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 5709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:53:50,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1151 Valid, 1943 Invalid, 5717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 5709 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-08 11:53:50,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9987 states. [2024-11-08 11:53:50,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9987 to 9987. [2024-11-08 11:53:50,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9987 states, 9986 states have (on average 1.4252954135790106) internal successors, (14233), 9986 states have internal predecessors, (14233), 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) [2024-11-08 11:53:51,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9987 states to 9987 states and 14233 transitions. [2024-11-08 11:53:51,009 INFO L78 Accepts]: Start accepts. Automaton has 9987 states and 14233 transitions. Word has length 324 [2024-11-08 11:53:51,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:53:51,010 INFO L471 AbstractCegarLoop]: Abstraction has 9987 states and 14233 transitions. [2024-11-08 11:53:51,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 3 states have internal predecessors, (324), 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) [2024-11-08 11:53:51,011 INFO L276 IsEmpty]: Start isEmpty. Operand 9987 states and 14233 transitions. [2024-11-08 11:53:51,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 579 [2024-11-08 11:53:51,019 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:53:51,020 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:53:51,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 11:53:51,020 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:53:51,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:53:51,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1084917904, now seen corresponding path program 1 times [2024-11-08 11:53:51,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:53:51,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884633038] [2024-11-08 11:53:51,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:53:51,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:53:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:53:52,441 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 61 proven. 44 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:53:52,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:53:52,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884633038] [2024-11-08 11:53:52,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884633038] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:53:52,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1334447075] [2024-11-08 11:53:52,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:53:52,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:53:52,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:53:52,447 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) [2024-11-08 11:53:52,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 11:53:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:53:52,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 11:53:52,732 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:53:52,903 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:53:52,903 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 11:53:52,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1334447075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:53:52,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 11:53:52,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-08 11:53:52,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654967785] [2024-11-08 11:53:52,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:53:52,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:53:52,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:53:52,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:53:52,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:53:52,910 INFO L87 Difference]: Start difference. First operand 9987 states and 14233 transitions. Second operand has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 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) [2024-11-08 11:53:57,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:53:57,964 INFO L93 Difference]: Finished difference Result 26790 states and 39374 transitions. [2024-11-08 11:53:57,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:53:57,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 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 578 [2024-11-08 11:53:57,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:53:58,001 INFO L225 Difference]: With dead ends: 26790 [2024-11-08 11:53:58,001 INFO L226 Difference]: Without dead ends: 18170 [2024-11-08 11:53:58,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 581 GetRequests, 577 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:53:58,016 INFO L432 NwaCegarLoop]: 703 mSDtfsCounter, 2531 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 4050 mSolverCounterSat, 1472 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2531 SdHoareTripleChecker+Valid, 813 SdHoareTripleChecker+Invalid, 5522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1472 IncrementalHoareTripleChecker+Valid, 4050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-08 11:53:58,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2531 Valid, 813 Invalid, 5522 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1472 Valid, 4050 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-08 11:53:58,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18170 states. [2024-11-08 11:53:58,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18170 to 18169. [2024-11-08 11:53:58,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18169 states, 18168 states have (on average 1.4180427124614707) internal successors, (25763), 18168 states have internal predecessors, (25763), 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) [2024-11-08 11:53:58,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18169 states to 18169 states and 25763 transitions. [2024-11-08 11:53:58,289 INFO L78 Accepts]: Start accepts. Automaton has 18169 states and 25763 transitions. Word has length 578 [2024-11-08 11:53:58,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:53:58,290 INFO L471 AbstractCegarLoop]: Abstraction has 18169 states and 25763 transitions. [2024-11-08 11:53:58,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 192.66666666666666) internal successors, (578), 3 states have internal predecessors, (578), 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) [2024-11-08 11:53:58,291 INFO L276 IsEmpty]: Start isEmpty. Operand 18169 states and 25763 transitions. [2024-11-08 11:53:58,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2024-11-08 11:53:58,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:53:58,300 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:53:58,319 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-08 11:53:58,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:53:58,502 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:53:58,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:53:58,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1177461922, now seen corresponding path program 1 times [2024-11-08 11:53:58,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:53:58,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948361623] [2024-11-08 11:53:58,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:53:58,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:53:58,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:53:59,056 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-08 11:53:59,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:53:59,056 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948361623] [2024-11-08 11:53:59,056 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948361623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:53:59,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:53:59,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:53:59,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707623169] [2024-11-08 11:53:59,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:53:59,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:53:59,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:53:59,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:53:59,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:53:59,061 INFO L87 Difference]: Start difference. First operand 18169 states and 25763 transitions. Second operand has 3 states, 3 states have (on average 167.33333333333334) internal successors, (502), 2 states have internal predecessors, (502), 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) [2024-11-08 11:54:03,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:54:03,784 INFO L93 Difference]: Finished difference Result 40438 states and 57708 transitions. [2024-11-08 11:54:03,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:54:03,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 167.33333333333334) internal successors, (502), 2 states have internal predecessors, (502), 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 585 [2024-11-08 11:54:03,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:54:03,830 INFO L225 Difference]: With dead ends: 40438 [2024-11-08 11:54:03,830 INFO L226 Difference]: Without dead ends: 23636 [2024-11-08 11:54:03,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:54:03,850 INFO L432 NwaCegarLoop]: 686 mSDtfsCounter, 1391 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 3925 mSolverCounterSat, 1659 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1391 SdHoareTripleChecker+Valid, 732 SdHoareTripleChecker+Invalid, 5584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1659 IncrementalHoareTripleChecker+Valid, 3925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-08 11:54:03,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1391 Valid, 732 Invalid, 5584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1659 Valid, 3925 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-08 11:54:03,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23636 states. [2024-11-08 11:54:04,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23636 to 23632. [2024-11-08 11:54:04,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23632 states, 23631 states have (on average 1.3269857390715585) internal successors, (31358), 23631 states have internal predecessors, (31358), 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) [2024-11-08 11:54:04,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23632 states to 23632 states and 31358 transitions. [2024-11-08 11:54:04,146 INFO L78 Accepts]: Start accepts. Automaton has 23632 states and 31358 transitions. Word has length 585 [2024-11-08 11:54:04,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:54:04,147 INFO L471 AbstractCegarLoop]: Abstraction has 23632 states and 31358 transitions. [2024-11-08 11:54:04,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.33333333333334) internal successors, (502), 2 states have internal predecessors, (502), 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) [2024-11-08 11:54:04,148 INFO L276 IsEmpty]: Start isEmpty. Operand 23632 states and 31358 transitions. [2024-11-08 11:54:04,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2024-11-08 11:54:04,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:54:04,158 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:54:04,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 11:54:04,158 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:54:04,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:54:04,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1045989357, now seen corresponding path program 1 times [2024-11-08 11:54:04,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:54:04,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201119807] [2024-11-08 11:54:04,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:54:04,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:54:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:54:06,178 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 39 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:54:06,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:54:06,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201119807] [2024-11-08 11:54:06,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201119807] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:54:06,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334724313] [2024-11-08 11:54:06,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:54:06,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:54:06,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:54:06,183 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 11:54:06,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 11:54:06,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:54:06,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 11:54:06,382 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:54:06,458 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-08 11:54:06,458 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 11:54:06,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334724313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:54:06,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 11:54:06,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-08 11:54:06,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959619886] [2024-11-08 11:54:06,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:54:06,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:54:06,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:54:06,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:54:06,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 11:54:06,461 INFO L87 Difference]: Start difference. First operand 23632 states and 31358 transitions. Second operand has 3 states, 3 states have (on average 167.33333333333334) internal successors, (502), 3 states have internal predecessors, (502), 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) [2024-11-08 11:54:11,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:54:11,464 INFO L93 Difference]: Finished difference Result 67757 states and 90811 transitions. [2024-11-08 11:54:11,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:54:11,464 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 167.33333333333334) internal successors, (502), 3 states have internal predecessors, (502), 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 591 [2024-11-08 11:54:11,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:54:11,519 INFO L225 Difference]: With dead ends: 67757 [2024-11-08 11:54:11,519 INFO L226 Difference]: Without dead ends: 45492 [2024-11-08 11:54:11,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 597 GetRequests, 591 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 11:54:11,556 INFO L432 NwaCegarLoop]: 2083 mSDtfsCounter, 1643 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 4895 mSolverCounterSat, 1053 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1643 SdHoareTripleChecker+Valid, 2185 SdHoareTripleChecker+Invalid, 5948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1053 IncrementalHoareTripleChecker+Valid, 4895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-08 11:54:11,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1643 Valid, 2185 Invalid, 5948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1053 Valid, 4895 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-08 11:54:11,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45492 states. [2024-11-08 11:54:12,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45492 to 45478. [2024-11-08 11:54:12,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45478 states, 45477 states have (on average 1.3033181608285507) internal successors, (59271), 45477 states have internal predecessors, (59271), 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) [2024-11-08 11:54:12,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45478 states to 45478 states and 59271 transitions. [2024-11-08 11:54:12,244 INFO L78 Accepts]: Start accepts. Automaton has 45478 states and 59271 transitions. Word has length 591 [2024-11-08 11:54:12,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:54:12,246 INFO L471 AbstractCegarLoop]: Abstraction has 45478 states and 59271 transitions. [2024-11-08 11:54:12,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 167.33333333333334) internal successors, (502), 3 states have internal predecessors, (502), 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) [2024-11-08 11:54:12,246 INFO L276 IsEmpty]: Start isEmpty. Operand 45478 states and 59271 transitions. [2024-11-08 11:54:12,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2024-11-08 11:54:12,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:54:12,255 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:54:12,273 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 11:54:12,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-08 11:54:12,456 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:54:12,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:54:12,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1991304213, now seen corresponding path program 1 times [2024-11-08 11:54:12,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:54:12,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247470767] [2024-11-08 11:54:12,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:54:12,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:54:12,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:54:13,411 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:54:13,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:54:13,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247470767] [2024-11-08 11:54:13,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247470767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:54:13,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:54:13,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:54:13,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752162747] [2024-11-08 11:54:13,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:54:13,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:54:13,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:54:13,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:54:13,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:54:13,415 INFO L87 Difference]: Start difference. First operand 45478 states and 59271 transitions. Second operand has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 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) [2024-11-08 11:54:18,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:54:18,966 INFO L93 Difference]: Finished difference Result 114213 states and 148417 transitions. [2024-11-08 11:54:18,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:54:18,967 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 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 607 [2024-11-08 11:54:18,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:54:19,058 INFO L225 Difference]: With dead ends: 114213 [2024-11-08 11:54:19,058 INFO L226 Difference]: Without dead ends: 68737 [2024-11-08 11:54:19,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:54:19,086 INFO L432 NwaCegarLoop]: 1933 mSDtfsCounter, 1619 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 4164 mSolverCounterSat, 2284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1619 SdHoareTripleChecker+Valid, 2015 SdHoareTripleChecker+Invalid, 6448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2284 IncrementalHoareTripleChecker+Valid, 4164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-08 11:54:19,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1619 Valid, 2015 Invalid, 6448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2284 Valid, 4164 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-08 11:54:19,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68737 states. [2024-11-08 11:54:19,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68737 to 68691. [2024-11-08 11:54:19,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68691 states, 68690 states have (on average 1.2739845683505604) internal successors, (87510), 68690 states have internal predecessors, (87510), 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) [2024-11-08 11:54:19,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68691 states to 68691 states and 87510 transitions. [2024-11-08 11:54:19,815 INFO L78 Accepts]: Start accepts. Automaton has 68691 states and 87510 transitions. Word has length 607 [2024-11-08 11:54:19,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:54:19,816 INFO L471 AbstractCegarLoop]: Abstraction has 68691 states and 87510 transitions. [2024-11-08 11:54:19,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 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) [2024-11-08 11:54:19,817 INFO L276 IsEmpty]: Start isEmpty. Operand 68691 states and 87510 transitions. [2024-11-08 11:54:19,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 678 [2024-11-08 11:54:19,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:54:19,825 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:54:19,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 11:54:19,825 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:54:19,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:54:19,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1357063286, now seen corresponding path program 1 times [2024-11-08 11:54:19,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:54:19,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958292873] [2024-11-08 11:54:19,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:54:19,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:54:20,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:54:20,816 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2024-11-08 11:54:20,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:54:20,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958292873] [2024-11-08 11:54:20,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958292873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:54:20,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:54:20,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:54:20,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742885954] [2024-11-08 11:54:20,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:54:20,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:54:20,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:54:20,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:54:20,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:54:20,821 INFO L87 Difference]: Start difference. First operand 68691 states and 87510 transitions. Second operand has 3 states, 3 states have (on average 168.0) internal successors, (504), 2 states have internal predecessors, (504), 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)