./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.extinction.2.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.extinction.2.prop1-func-interl.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 58b8a740c1cbc874d09e5982097d69ce7dc8e6d4df28713e7e17c9fcc0771f2a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 04:03:13,966 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 04:03:14,046 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-24 04:03:14,051 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 04:03:14,052 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 04:03:14,089 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 04:03:14,091 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 04:03:14,091 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 04:03:14,092 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 04:03:14,093 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 04:03:14,094 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 04:03:14,094 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 04:03:14,095 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 04:03:14,095 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 04:03:14,097 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 04:03:14,097 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 04:03:14,098 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 04:03:14,098 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 04:03:14,098 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 04:03:14,099 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 04:03:14,099 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 04:03:14,103 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 04:03:14,104 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 04:03:14,104 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 04:03:14,104 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 04:03:14,104 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 04:03:14,105 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 04:03:14,105 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 04:03:14,105 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 04:03:14,105 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 04:03:14,106 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 04:03:14,106 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 04:03:14,106 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 04:03:14,106 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 04:03:14,107 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 04:03:14,107 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 04:03:14,107 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 04:03:14,107 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 04:03:14,108 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 04:03:14,108 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58b8a740c1cbc874d09e5982097d69ce7dc8e6d4df28713e7e17c9fcc0771f2a [2024-10-24 04:03:14,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 04:03:14,400 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 04:03:14,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 04:03:14,408 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 04:03:14,408 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 04:03:14,410 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.extinction.2.prop1-func-interl.c [2024-10-24 04:03:15,823 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 04:03:16,233 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 04:03:16,234 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.extinction.2.prop1-func-interl.c [2024-10-24 04:03:16,271 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6df7de4fe/0543e2e5d06640b897bdadd9e5428962/FLAG262ca2a34 [2024-10-24 04:03:16,289 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6df7de4fe/0543e2e5d06640b897bdadd9e5428962 [2024-10-24 04:03:16,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 04:03:16,294 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 04:03:16,298 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 04:03:16,298 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 04:03:16,304 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 04:03:16,305 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:03:16" (1/1) ... [2024-10-24 04:03:16,307 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aec072c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:03:16, skipping insertion in model container [2024-10-24 04:03:16,307 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:03:16" (1/1) ... [2024-10-24 04:03:16,438 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 04:03:16,740 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.extinction.2.prop1-func-interl.c[1177,1190] [2024-10-24 04:03:17,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 04:03:17,547 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 04:03:17,556 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.extinction.2.prop1-func-interl.c[1177,1190] [2024-10-24 04:03:18,130 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 04:03:18,147 INFO L204 MainTranslator]: Completed translation [2024-10-24 04:03:18,148 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:03:18 WrapperNode [2024-10-24 04:03:18,148 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 04:03:18,149 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 04:03:18,149 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 04:03:18,149 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 04:03:18,156 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:03:18" (1/1) ... [2024-10-24 04:03:18,389 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:03:18" (1/1) ... [2024-10-24 04:03:21,150 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22852 [2024-10-24 04:03:21,151 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 04:03:21,151 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 04:03:21,152 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 04:03:21,152 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 04:03:21,162 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:03:18" (1/1) ... [2024-10-24 04:03:21,162 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:03:18" (1/1) ... [2024-10-24 04:03:21,879 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:03:18" (1/1) ... [2024-10-24 04:03:22,338 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 04:03:22,338 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:03:18" (1/1) ... [2024-10-24 04:03:22,338 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:03:18" (1/1) ... [2024-10-24 04:03:23,264 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:03:18" (1/1) ... [2024-10-24 04:03:23,391 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:03:18" (1/1) ... [2024-10-24 04:03:23,519 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:03:18" (1/1) ... [2024-10-24 04:03:23,621 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:03:18" (1/1) ... [2024-10-24 04:03:24,015 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 04:03:24,016 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 04:03:24,017 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 04:03:24,017 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 04:03:24,018 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:03:18" (1/1) ... [2024-10-24 04:03:24,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 04:03:24,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 04:03:24,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 04:03:24,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 04:03:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 04:03:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 04:03:24,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 04:03:24,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 04:03:25,213 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 04:03:25,217 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 04:04:08,044 INFO L? ?]: Removed 12904 outVars from TransFormulas that were not future-live. [2024-10-24 04:04:08,045 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 04:04:08,325 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 04:04:08,325 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 04:04:08,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:04:08 BoogieIcfgContainer [2024-10-24 04:04:08,326 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 04:04:08,328 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 04:04:08,328 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 04:04:08,331 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 04:04:08,331 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 04:03:16" (1/3) ... [2024-10-24 04:04:08,332 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@246ac032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:04:08, skipping insertion in model container [2024-10-24 04:04:08,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:03:18" (2/3) ... [2024-10-24 04:04:08,333 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@246ac032 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:04:08, skipping insertion in model container [2024-10-24 04:04:08,333 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:04:08" (3/3) ... [2024-10-24 04:04:08,334 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.extinction.2.prop1-func-interl.c [2024-10-24 04:04:08,349 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 04:04:08,349 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 04:04:08,623 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 04:04:08,629 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;@4e0135fb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 04:04:08,630 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 04:04:08,656 INFO L276 IsEmpty]: Start isEmpty. Operand has 7855 states, 7853 states have (on average 1.5026104673373233) internal successors, (11800), 7854 states have internal predecessors, (11800), 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) [2024-10-24 04:04:08,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2024-10-24 04:04:08,677 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:04:08,678 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:04:08,679 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:04:08,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:04:08,683 INFO L85 PathProgramCache]: Analyzing trace with hash -295051937, now seen corresponding path program 1 times [2024-10-24 04:04:08,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:04:08,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041612175] [2024-10-24 04:04:08,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:04:08,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:04:09,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:04:10,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 04:04:10,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:04:10,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041612175] [2024-10-24 04:04:10,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041612175] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:04:10,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:04:10,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 04:04:10,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664229138] [2024-10-24 04:04:10,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:04:10,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 04:04:10,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:04:10,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 04:04:10,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 04:04:10,582 INFO L87 Difference]: Start difference. First operand has 7855 states, 7853 states have (on average 1.5026104673373233) internal successors, (11800), 7854 states have internal predecessors, (11800), 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 5 states, 5 states have (on average 60.8) internal successors, (304), 4 states have internal predecessors, (304), 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) [2024-10-24 04:04:18,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:04:18,827 INFO L93 Difference]: Finished difference Result 22765 states and 34204 transitions. [2024-10-24 04:04:18,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 04:04:18,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.8) internal successors, (304), 4 states have internal predecessors, (304), 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 304 [2024-10-24 04:04:18,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:04:18,911 INFO L225 Difference]: With dead ends: 22765 [2024-10-24 04:04:18,912 INFO L226 Difference]: Without dead ends: 15303 [2024-10-24 04:04:18,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-24 04:04:18,940 INFO L432 NwaCegarLoop]: 8816 mSDtfsCounter, 11486 mSDsluCounter, 26032 mSDsCounter, 0 mSdLazyCounter, 11755 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11486 SdHoareTripleChecker+Valid, 34848 SdHoareTripleChecker+Invalid, 11756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2024-10-24 04:04:18,941 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11486 Valid, 34848 Invalid, 11756 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 11755 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2024-10-24 04:04:18,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15303 states. [2024-10-24 04:04:19,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15303 to 8049. [2024-10-24 04:04:19,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8049 states, 8048 states have (on average 1.5021123260437377) internal successors, (12089), 8048 states have internal predecessors, (12089), 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) [2024-10-24 04:04:19,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8049 states to 8049 states and 12089 transitions. [2024-10-24 04:04:19,259 INFO L78 Accepts]: Start accepts. Automaton has 8049 states and 12089 transitions. Word has length 304 [2024-10-24 04:04:19,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:04:19,261 INFO L471 AbstractCegarLoop]: Abstraction has 8049 states and 12089 transitions. [2024-10-24 04:04:19,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.8) internal successors, (304), 4 states have internal predecessors, (304), 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) [2024-10-24 04:04:19,262 INFO L276 IsEmpty]: Start isEmpty. Operand 8049 states and 12089 transitions. [2024-10-24 04:04:19,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2024-10-24 04:04:19,267 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:04:19,267 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:04:19,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 04:04:19,268 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:04:19,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:04:19,269 INFO L85 PathProgramCache]: Analyzing trace with hash -232203908, now seen corresponding path program 1 times [2024-10-24 04:04:19,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:04:19,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104848211] [2024-10-24 04:04:19,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:04:19,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:04:19,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:04:20,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 04:04:20,161 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:04:20,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104848211] [2024-10-24 04:04:20,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104848211] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:04:20,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:04:20,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 04:04:20,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208770366] [2024-10-24 04:04:20,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:04:20,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 04:04:20,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:04:20,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 04:04:20,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:04:20,167 INFO L87 Difference]: Start difference. First operand 8049 states and 12089 transitions. Second operand has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 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) [2024-10-24 04:04:20,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:04:20,338 INFO L93 Difference]: Finished difference Result 8053 states and 12093 transitions. [2024-10-24 04:04:20,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 04:04:20,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 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 306 [2024-10-24 04:04:20,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:04:20,368 INFO L225 Difference]: With dead ends: 8053 [2024-10-24 04:04:20,368 INFO L226 Difference]: Without dead ends: 8051 [2024-10-24 04:04:20,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:04:20,375 INFO L432 NwaCegarLoop]: 11795 mSDtfsCounter, 0 mSDsluCounter, 23585 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35380 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 04:04:20,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35380 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 04:04:20,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8051 states. [2024-10-24 04:04:20,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8051 to 8051. [2024-10-24 04:04:20,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8051 states, 8050 states have (on average 1.5019875776397515) internal successors, (12091), 8050 states have internal predecessors, (12091), 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) [2024-10-24 04:04:20,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8051 states to 8051 states and 12091 transitions. [2024-10-24 04:04:20,543 INFO L78 Accepts]: Start accepts. Automaton has 8051 states and 12091 transitions. Word has length 306 [2024-10-24 04:04:20,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:04:20,544 INFO L471 AbstractCegarLoop]: Abstraction has 8051 states and 12091 transitions. [2024-10-24 04:04:20,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.5) internal successors, (306), 4 states have internal predecessors, (306), 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) [2024-10-24 04:04:20,545 INFO L276 IsEmpty]: Start isEmpty. Operand 8051 states and 12091 transitions. [2024-10-24 04:04:20,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-10-24 04:04:20,550 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:04:20,551 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:04:20,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 04:04:20,552 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:04:20,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:04:20,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1393310547, now seen corresponding path program 1 times [2024-10-24 04:04:20,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:04:20,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043070781] [2024-10-24 04:04:20,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:04:20,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:04:20,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:04:21,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 04:04:21,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:04:21,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043070781] [2024-10-24 04:04:21,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043070781] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:04:21,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:04:21,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 04:04:21,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652837408] [2024-10-24 04:04:21,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:04:21,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 04:04:21,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:04:21,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 04:04:21,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:04:21,146 INFO L87 Difference]: Start difference. First operand 8051 states and 12091 transitions. Second operand has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 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) [2024-10-24 04:04:21,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:04:21,410 INFO L93 Difference]: Finished difference Result 15516 states and 23305 transitions. [2024-10-24 04:04:21,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 04:04:21,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 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 307 [2024-10-24 04:04:21,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:04:21,450 INFO L225 Difference]: With dead ends: 15516 [2024-10-24 04:04:21,450 INFO L226 Difference]: Without dead ends: 8053 [2024-10-24 04:04:21,463 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 04:04:21,468 INFO L432 NwaCegarLoop]: 11795 mSDtfsCounter, 0 mSDsluCounter, 23582 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35377 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 04:04:21,470 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35377 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 04:04:21,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8053 states. [2024-10-24 04:04:21,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8053 to 8053. [2024-10-24 04:04:21,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8053 states, 8052 states have (on average 1.5018628912071534) internal successors, (12093), 8052 states have internal predecessors, (12093), 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) [2024-10-24 04:04:21,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8053 states to 8053 states and 12093 transitions. [2024-10-24 04:04:21,661 INFO L78 Accepts]: Start accepts. Automaton has 8053 states and 12093 transitions. Word has length 307 [2024-10-24 04:04:21,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:04:21,662 INFO L471 AbstractCegarLoop]: Abstraction has 8053 states and 12093 transitions. [2024-10-24 04:04:21,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.75) internal successors, (307), 4 states have internal predecessors, (307), 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) [2024-10-24 04:04:21,664 INFO L276 IsEmpty]: Start isEmpty. Operand 8053 states and 12093 transitions. [2024-10-24 04:04:21,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-10-24 04:04:21,668 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:04:21,669 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:04:21,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 04:04:21,671 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:04:21,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:04:21,672 INFO L85 PathProgramCache]: Analyzing trace with hash -855009995, now seen corresponding path program 1 times [2024-10-24 04:04:21,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:04:21,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799010474] [2024-10-24 04:04:21,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:04:21,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:04:21,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:04:22,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 04:04:22,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:04:22,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799010474] [2024-10-24 04:04:22,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799010474] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:04:22,474 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:04:22,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 04:04:22,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916297622] [2024-10-24 04:04:22,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:04:22,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 04:04:22,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:04:22,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 04:04:22,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 04:04:22,476 INFO L87 Difference]: Start difference. First operand 8053 states and 12093 transitions. Second operand has 5 states, 5 states have (on average 61.6) internal successors, (308), 5 states have internal predecessors, (308), 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) [2024-10-24 04:04:22,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 04:04:22,772 INFO L93 Difference]: Finished difference Result 15520 states and 23309 transitions. [2024-10-24 04:04:22,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 04:04:22,773 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 61.6) internal successors, (308), 5 states have internal predecessors, (308), 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 308 [2024-10-24 04:04:22,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 04:04:22,790 INFO L225 Difference]: With dead ends: 15520 [2024-10-24 04:04:22,791 INFO L226 Difference]: Without dead ends: 8055 [2024-10-24 04:04:22,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-24 04:04:22,803 INFO L432 NwaCegarLoop]: 11795 mSDtfsCounter, 0 mSDsluCounter, 35354 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47149 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 04:04:22,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 47149 Invalid, 43 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 04:04:22,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8055 states. [2024-10-24 04:04:22,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8055 to 8055. [2024-10-24 04:04:22,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8055 states, 8054 states have (on average 1.5017382666997765) internal successors, (12095), 8054 states have internal predecessors, (12095), 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) [2024-10-24 04:04:22,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8055 states to 8055 states and 12095 transitions. [2024-10-24 04:04:22,992 INFO L78 Accepts]: Start accepts. Automaton has 8055 states and 12095 transitions. Word has length 308 [2024-10-24 04:04:22,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 04:04:22,993 INFO L471 AbstractCegarLoop]: Abstraction has 8055 states and 12095 transitions. [2024-10-24 04:04:22,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 61.6) internal successors, (308), 5 states have internal predecessors, (308), 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) [2024-10-24 04:04:22,994 INFO L276 IsEmpty]: Start isEmpty. Operand 8055 states and 12095 transitions. [2024-10-24 04:04:22,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2024-10-24 04:04:22,998 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 04:04:23,000 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 04:04:23,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 04:04:23,001 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 04:04:23,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 04:04:23,002 INFO L85 PathProgramCache]: Analyzing trace with hash 173382682, now seen corresponding path program 1 times [2024-10-24 04:04:23,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 04:04:23,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263854606] [2024-10-24 04:04:23,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 04:04:23,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 04:04:23,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 04:04:24,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 04:04:24,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 04:04:24,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263854606] [2024-10-24 04:04:24,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263854606] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 04:04:24,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 04:04:24,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 04:04:24,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799860638] [2024-10-24 04:04:24,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 04:04:24,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 04:04:24,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 04:04:24,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 04:04:24,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-24 04:04:24,318 INFO L87 Difference]: Start difference. First operand 8055 states and 12095 transitions. Second operand has 6 states, 6 states have (on average 51.5) internal successors, (309), 5 states have internal predecessors, (309), 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)