./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/token_ring.11.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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/systemc/token_ring.11.cil-2.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 c5f603027c62ff37561a520351662dbe2fd253b52e04e36028cb9a624978ef8e --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 05:54:29,074 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 05:54:29,129 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 05:54:29,132 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 05:54:29,132 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 05:54:29,150 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 05:54:29,150 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 05:54:29,151 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 05:54:29,151 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 05:54:29,151 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 05:54:29,152 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 05:54:29,152 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 05:54:29,152 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 05:54:29,152 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 05:54:29,153 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 05:54:29,153 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 05:54:29,153 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 05:54:29,153 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 05:54:29,153 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 05:54:29,153 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 05:54:29,153 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 05:54:29,153 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 05:54:29,154 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 05:54:29,154 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 05:54:29,154 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 05:54:29,154 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 05:54:29,154 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 05:54:29,154 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 05:54:29,154 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 05:54:29,154 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 05:54:29,155 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 05:54:29,155 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 05:54:29,155 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 05:54:29,155 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 05:54:29,155 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 05:54:29,155 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 05:54:29,155 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 05:54:29,155 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 05:54:29,155 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 05:54:29,155 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 05:54:29,155 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 05:54:29,155 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 05:54:29,155 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 05:54:29,156 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/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 -> c5f603027c62ff37561a520351662dbe2fd253b52e04e36028cb9a624978ef8e [2025-03-08 05:54:29,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 05:54:29,418 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 05:54:29,421 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 05:54:29,422 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 05:54:29,423 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 05:54:29,424 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.11.cil-2.c [2025-03-08 05:54:30,661 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e656a076/ccf20e0da4ba4741a834c6bb9cb08f58/FLAG26b214bd9 [2025-03-08 05:54:30,908 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 05:54:30,908 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.11.cil-2.c [2025-03-08 05:54:30,924 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e656a076/ccf20e0da4ba4741a834c6bb9cb08f58/FLAG26b214bd9 [2025-03-08 05:54:30,942 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e656a076/ccf20e0da4ba4741a834c6bb9cb08f58 [2025-03-08 05:54:30,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 05:54:30,945 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 05:54:30,946 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 05:54:30,946 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 05:54:30,949 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 05:54:30,950 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:54:30" (1/1) ... [2025-03-08 05:54:30,950 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a53a3f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:54:30, skipping insertion in model container [2025-03-08 05:54:30,950 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:54:30" (1/1) ... [2025-03-08 05:54:30,976 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 05:54:31,087 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/systemc/token_ring.11.cil-2.c[671,684] [2025-03-08 05:54:31,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 05:54:31,178 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 05:54:31,185 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/systemc/token_ring.11.cil-2.c[671,684] [2025-03-08 05:54:31,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 05:54:31,255 INFO L204 MainTranslator]: Completed translation [2025-03-08 05:54:31,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:54:31 WrapperNode [2025-03-08 05:54:31,256 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 05:54:31,257 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 05:54:31,257 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 05:54:31,257 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 05:54:31,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:54:31" (1/1) ... [2025-03-08 05:54:31,269 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:54:31" (1/1) ... [2025-03-08 05:54:31,298 INFO L138 Inliner]: procedures = 50, calls = 64, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 777 [2025-03-08 05:54:31,299 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 05:54:31,300 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 05:54:31,300 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 05:54:31,300 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 05:54:31,307 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:54:31" (1/1) ... [2025-03-08 05:54:31,308 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:54:31" (1/1) ... [2025-03-08 05:54:31,310 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:54:31" (1/1) ... [2025-03-08 05:54:31,322 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-08 05:54:31,322 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:54:31" (1/1) ... [2025-03-08 05:54:31,322 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:54:31" (1/1) ... [2025-03-08 05:54:31,336 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:54:31" (1/1) ... [2025-03-08 05:54:31,337 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:54:31" (1/1) ... [2025-03-08 05:54:31,338 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:54:31" (1/1) ... [2025-03-08 05:54:31,343 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:54:31" (1/1) ... [2025-03-08 05:54:31,346 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 05:54:31,346 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 05:54:31,346 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 05:54:31,346 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 05:54:31,353 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:54:31" (1/1) ... [2025-03-08 05:54:31,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 05:54:31,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:54:31,380 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) [2025-03-08 05:54:31,383 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 [2025-03-08 05:54:31,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 05:54:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2025-03-08 05:54:31,401 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2025-03-08 05:54:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2025-03-08 05:54:31,401 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2025-03-08 05:54:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2025-03-08 05:54:31,401 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2025-03-08 05:54:31,401 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2025-03-08 05:54:31,401 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2025-03-08 05:54:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2025-03-08 05:54:31,402 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2025-03-08 05:54:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2025-03-08 05:54:31,402 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2025-03-08 05:54:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 05:54:31,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 05:54:31,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 05:54:31,515 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 05:54:31,517 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 05:54:32,246 INFO L? ?]: Removed 91 outVars from TransFormulas that were not future-live. [2025-03-08 05:54:32,247 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 05:54:32,259 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 05:54:32,259 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 05:54:32,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:54:32 BoogieIcfgContainer [2025-03-08 05:54:32,260 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 05:54:32,261 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 05:54:32,261 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 05:54:32,266 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 05:54:32,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:54:30" (1/3) ... [2025-03-08 05:54:32,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4294c524 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:54:32, skipping insertion in model container [2025-03-08 05:54:32,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:54:31" (2/3) ... [2025-03-08 05:54:32,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4294c524 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:54:32, skipping insertion in model container [2025-03-08 05:54:32,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:54:32" (3/3) ... [2025-03-08 05:54:32,268 INFO L128 eAbstractionObserver]: Analyzing ICFG token_ring.11.cil-2.c [2025-03-08 05:54:32,282 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 05:54:32,285 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG token_ring.11.cil-2.c that has 7 procedures, 355 locations, 1 initial locations, 14 loop locations, and 1 error locations. [2025-03-08 05:54:32,341 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 05:54:32,351 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;@615424e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 05:54:32,351 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 05:54:32,355 INFO L276 IsEmpty]: Start isEmpty. Operand has 355 states, 323 states have (on average 1.6160990712074303) internal successors, (522), 324 states have internal predecessors, (522), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2025-03-08 05:54:32,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-03-08 05:54:32,368 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:54:32,368 INFO L218 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] [2025-03-08 05:54:32,369 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:54:32,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:54:32,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1548217324, now seen corresponding path program 1 times [2025-03-08 05:54:32,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:54:32,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085454644] [2025-03-08 05:54:32,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:54:32,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:54:32,460 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-08 05:54:32,485 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-08 05:54:32,485 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:54:32,485 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:54:32,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 05:54:32,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:54:32,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085454644] [2025-03-08 05:54:32,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085454644] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:54:32,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:54:32,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 05:54:32,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899574179] [2025-03-08 05:54:32,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:54:32,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:54:32,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:54:32,977 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:54:32,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 05:54:32,982 INFO L87 Difference]: Start difference. First operand has 355 states, 323 states have (on average 1.6160990712074303) internal successors, (522), 324 states have internal predecessors, (522), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:54:33,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:54:33,646 INFO L93 Difference]: Finished difference Result 1069 states and 1738 transitions. [2025-03-08 05:54:33,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:54:33,650 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 164 [2025-03-08 05:54:33,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:54:33,664 INFO L225 Difference]: With dead ends: 1069 [2025-03-08 05:54:33,665 INFO L226 Difference]: Without dead ends: 725 [2025-03-08 05:54:33,669 INFO L434 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 [2025-03-08 05:54:33,673 INFO L435 NwaCegarLoop]: 436 mSDtfsCounter, 1069 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 591 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1088 SdHoareTripleChecker+Valid, 1546 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 591 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 05:54:33,676 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1088 Valid, 1546 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 591 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 05:54:33,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2025-03-08 05:54:33,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 698. [2025-03-08 05:54:33,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 698 states, 639 states have (on average 1.5884194053208138) internal successors, (1015), 641 states have internal predecessors, (1015), 45 states have call successors, (45), 12 states have call predecessors, (45), 13 states have return successors, (46), 45 states have call predecessors, (46), 45 states have call successors, (46) [2025-03-08 05:54:33,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 1106 transitions. [2025-03-08 05:54:33,737 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 1106 transitions. Word has length 164 [2025-03-08 05:54:33,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:54:33,738 INFO L471 AbstractCegarLoop]: Abstraction has 698 states and 1106 transitions. [2025-03-08 05:54:33,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.8) internal successors, (154), 4 states have internal predecessors, (154), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:54:33,739 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 1106 transitions. [2025-03-08 05:54:33,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-03-08 05:54:33,741 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:54:33,741 INFO L218 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] [2025-03-08 05:54:33,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 05:54:33,742 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:54:33,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:54:33,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1973317934, now seen corresponding path program 1 times [2025-03-08 05:54:33,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:54:33,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197522719] [2025-03-08 05:54:33,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:54:33,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:54:33,762 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-08 05:54:33,774 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-08 05:54:33,774 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:54:33,774 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:54:34,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 05:54:34,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:54:34,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197522719] [2025-03-08 05:54:34,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197522719] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:54:34,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:54:34,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:54:34,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396418776] [2025-03-08 05:54:34,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:54:34,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:54:34,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:54:34,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:54:34,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:54:34,013 INFO L87 Difference]: Start difference. First operand 698 states and 1106 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:54:34,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:54:34,726 INFO L93 Difference]: Finished difference Result 1823 states and 2921 transitions. [2025-03-08 05:54:34,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 05:54:34,727 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 164 [2025-03-08 05:54:34,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:54:34,733 INFO L225 Difference]: With dead ends: 1823 [2025-03-08 05:54:34,734 INFO L226 Difference]: Without dead ends: 1144 [2025-03-08 05:54:34,737 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:54:34,738 INFO L435 NwaCegarLoop]: 720 mSDtfsCounter, 1073 mSDsluCounter, 2205 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1092 SdHoareTripleChecker+Valid, 2925 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 05:54:34,739 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1092 Valid, 2925 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 05:54:34,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1144 states. [2025-03-08 05:54:34,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1144 to 1021. [2025-03-08 05:54:34,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1021 states, 935 states have (on average 1.5807486631016043) internal successors, (1478), 938 states have internal predecessors, (1478), 65 states have call successors, (65), 18 states have call predecessors, (65), 20 states have return successors, (69), 66 states have call predecessors, (69), 65 states have call successors, (69) [2025-03-08 05:54:34,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1021 states to 1021 states and 1612 transitions. [2025-03-08 05:54:34,798 INFO L78 Accepts]: Start accepts. Automaton has 1021 states and 1612 transitions. Word has length 164 [2025-03-08 05:54:34,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:54:34,799 INFO L471 AbstractCegarLoop]: Abstraction has 1021 states and 1612 transitions. [2025-03-08 05:54:34,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:54:34,799 INFO L276 IsEmpty]: Start isEmpty. Operand 1021 states and 1612 transitions. [2025-03-08 05:54:34,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-03-08 05:54:34,803 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:54:34,803 INFO L218 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] [2025-03-08 05:54:34,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 05:54:34,804 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:54:34,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:54:34,804 INFO L85 PathProgramCache]: Analyzing trace with hash -444380467, now seen corresponding path program 1 times [2025-03-08 05:54:34,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:54:34,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687045908] [2025-03-08 05:54:34,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:54:34,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:54:34,819 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-08 05:54:34,823 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-08 05:54:34,824 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:54:34,824 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:54:35,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 05:54:35,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:54:35,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687045908] [2025-03-08 05:54:35,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687045908] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:54:35,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:54:35,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:54:35,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974888277] [2025-03-08 05:54:35,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:54:35,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:54:35,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:54:35,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:54:35,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:54:35,004 INFO L87 Difference]: Start difference. First operand 1021 states and 1612 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:54:35,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:54:35,716 INFO L93 Difference]: Finished difference Result 2856 states and 4566 transitions. [2025-03-08 05:54:35,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 05:54:35,717 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 164 [2025-03-08 05:54:35,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:54:35,727 INFO L225 Difference]: With dead ends: 2856 [2025-03-08 05:54:35,727 INFO L226 Difference]: Without dead ends: 1854 [2025-03-08 05:54:35,730 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:54:35,732 INFO L435 NwaCegarLoop]: 716 mSDtfsCounter, 1068 mSDsluCounter, 2193 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1087 SdHoareTripleChecker+Valid, 2909 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 05:54:35,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1087 Valid, 2909 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 05:54:35,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1854 states. [2025-03-08 05:54:35,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1854 to 1712. [2025-03-08 05:54:35,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1712 states, 1570 states have (on average 1.584076433121019) internal successors, (2487), 1577 states have internal predecessors, (2487), 105 states have call successors, (105), 30 states have call predecessors, (105), 36 states have return successors, (121), 108 states have call predecessors, (121), 105 states have call successors, (121) [2025-03-08 05:54:35,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1712 states to 1712 states and 2713 transitions. [2025-03-08 05:54:35,814 INFO L78 Accepts]: Start accepts. Automaton has 1712 states and 2713 transitions. Word has length 164 [2025-03-08 05:54:35,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:54:35,815 INFO L471 AbstractCegarLoop]: Abstraction has 1712 states and 2713 transitions. [2025-03-08 05:54:35,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:54:35,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1712 states and 2713 transitions. [2025-03-08 05:54:35,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-03-08 05:54:35,818 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:54:35,818 INFO L218 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] [2025-03-08 05:54:35,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 05:54:35,818 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:54:35,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:54:35,820 INFO L85 PathProgramCache]: Analyzing trace with hash -522370738, now seen corresponding path program 1 times [2025-03-08 05:54:35,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:54:35,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319760896] [2025-03-08 05:54:35,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:54:35,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:54:35,835 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-08 05:54:35,839 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-08 05:54:35,839 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:54:35,839 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:54:35,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 05:54:35,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:54:35,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319760896] [2025-03-08 05:54:35,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319760896] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:54:35,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:54:35,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:54:35,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939897091] [2025-03-08 05:54:35,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:54:35,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:54:35,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:54:35,980 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:54:35,980 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:54:35,980 INFO L87 Difference]: Start difference. First operand 1712 states and 2713 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:54:36,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:54:36,650 INFO L93 Difference]: Finished difference Result 5097 states and 8209 transitions. [2025-03-08 05:54:36,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 05:54:36,651 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 164 [2025-03-08 05:54:36,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:54:36,666 INFO L225 Difference]: With dead ends: 5097 [2025-03-08 05:54:36,666 INFO L226 Difference]: Without dead ends: 3404 [2025-03-08 05:54:36,672 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:54:36,673 INFO L435 NwaCegarLoop]: 713 mSDtfsCounter, 1063 mSDsluCounter, 2184 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 2897 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 05:54:36,674 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1082 Valid, 2897 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 05:54:36,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3404 states. [2025-03-08 05:54:36,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3404 to 3223. [2025-03-08 05:54:36,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3223 states, 2963 states have (on average 1.600742490718866) internal successors, (4743), 2984 states have internal predecessors, (4743), 185 states have call successors, (185), 54 states have call predecessors, (185), 74 states have return successors, (249), 192 states have call predecessors, (249), 185 states have call successors, (249) [2025-03-08 05:54:36,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3223 states to 3223 states and 5177 transitions. [2025-03-08 05:54:36,791 INFO L78 Accepts]: Start accepts. Automaton has 3223 states and 5177 transitions. Word has length 164 [2025-03-08 05:54:36,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:54:36,792 INFO L471 AbstractCegarLoop]: Abstraction has 3223 states and 5177 transitions. [2025-03-08 05:54:36,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:54:36,793 INFO L276 IsEmpty]: Start isEmpty. Operand 3223 states and 5177 transitions. [2025-03-08 05:54:36,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-03-08 05:54:36,796 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:54:36,796 INFO L218 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] [2025-03-08 05:54:36,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 05:54:36,796 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:54:36,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:54:36,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1830418093, now seen corresponding path program 1 times [2025-03-08 05:54:36,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:54:36,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452043461] [2025-03-08 05:54:36,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:54:36,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:54:36,807 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-08 05:54:36,814 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-08 05:54:36,814 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:54:36,814 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:54:36,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 05:54:36,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:54:36,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452043461] [2025-03-08 05:54:36,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452043461] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:54:36,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:54:36,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:54:36,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024163329] [2025-03-08 05:54:36,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:54:36,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:54:36,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:54:36,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:54:36,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:54:36,960 INFO L87 Difference]: Start difference. First operand 3223 states and 5177 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:54:37,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:54:37,671 INFO L93 Difference]: Finished difference Result 10076 states and 16531 transitions. [2025-03-08 05:54:37,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 05:54:37,671 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 164 [2025-03-08 05:54:37,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:54:37,702 INFO L225 Difference]: With dead ends: 10076 [2025-03-08 05:54:37,702 INFO L226 Difference]: Without dead ends: 6872 [2025-03-08 05:54:37,713 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:54:37,714 INFO L435 NwaCegarLoop]: 710 mSDtfsCounter, 1058 mSDsluCounter, 2175 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 2885 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 05:54:37,714 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1077 Valid, 2885 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 05:54:37,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6872 states. [2025-03-08 05:54:37,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6872 to 6614. [2025-03-08 05:54:37,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6614 states, 6100 states have (on average 1.6286885245901639) internal successors, (9935), 6167 states have internal predecessors, (9935), 345 states have call successors, (345), 102 states have call predecessors, (345), 168 states have return successors, (601), 360 states have call predecessors, (601), 345 states have call successors, (601) [2025-03-08 05:54:37,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6614 states to 6614 states and 10881 transitions. [2025-03-08 05:54:37,990 INFO L78 Accepts]: Start accepts. Automaton has 6614 states and 10881 transitions. Word has length 164 [2025-03-08 05:54:37,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:54:37,990 INFO L471 AbstractCegarLoop]: Abstraction has 6614 states and 10881 transitions. [2025-03-08 05:54:37,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:54:37,990 INFO L276 IsEmpty]: Start isEmpty. Operand 6614 states and 10881 transitions. [2025-03-08 05:54:37,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-03-08 05:54:37,994 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:54:37,994 INFO L218 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] [2025-03-08 05:54:37,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 05:54:37,994 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:54:37,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:54:37,995 INFO L85 PathProgramCache]: Analyzing trace with hash 936483182, now seen corresponding path program 1 times [2025-03-08 05:54:37,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:54:37,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582778408] [2025-03-08 05:54:37,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:54:37,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:54:38,007 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-08 05:54:38,013 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-08 05:54:38,013 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:54:38,013 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:54:38,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 05:54:38,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:54:38,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582778408] [2025-03-08 05:54:38,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582778408] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:54:38,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:54:38,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:54:38,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396823113] [2025-03-08 05:54:38,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:54:38,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:54:38,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:54:38,128 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:54:38,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:54:38,128 INFO L87 Difference]: Start difference. First operand 6614 states and 10881 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:54:39,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:54:39,064 INFO L93 Difference]: Finished difference Result 21451 states and 36261 transitions. [2025-03-08 05:54:39,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 05:54:39,065 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 164 [2025-03-08 05:54:39,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:54:39,130 INFO L225 Difference]: With dead ends: 21451 [2025-03-08 05:54:39,131 INFO L226 Difference]: Without dead ends: 14856 [2025-03-08 05:54:39,148 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:54:39,150 INFO L435 NwaCegarLoop]: 707 mSDtfsCounter, 1053 mSDsluCounter, 2166 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1072 SdHoareTripleChecker+Valid, 2873 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 05:54:39,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1072 Valid, 2873 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 05:54:39,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14856 states. [2025-03-08 05:54:39,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14856 to 14449. [2025-03-08 05:54:39,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14449 states, 13373 states have (on average 1.6641740821057354) internal successors, (22255), 13586 states have internal predecessors, (22255), 665 states have call successors, (665), 198 states have call predecessors, (665), 410 states have return successors, (1689), 696 states have call predecessors, (1689), 665 states have call successors, (1689) [2025-03-08 05:54:39,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14449 states to 14449 states and 24609 transitions. [2025-03-08 05:54:39,586 INFO L78 Accepts]: Start accepts. Automaton has 14449 states and 24609 transitions. Word has length 164 [2025-03-08 05:54:39,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:54:39,586 INFO L471 AbstractCegarLoop]: Abstraction has 14449 states and 24609 transitions. [2025-03-08 05:54:39,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:54:39,586 INFO L276 IsEmpty]: Start isEmpty. Operand 14449 states and 24609 transitions. [2025-03-08 05:54:39,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-03-08 05:54:39,593 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:54:39,593 INFO L218 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] [2025-03-08 05:54:39,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 05:54:39,593 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:54:39,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:54:39,594 INFO L85 PathProgramCache]: Analyzing trace with hash 2016025229, now seen corresponding path program 1 times [2025-03-08 05:54:39,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:54:39,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709595049] [2025-03-08 05:54:39,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:54:39,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:54:39,603 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-08 05:54:39,607 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-08 05:54:39,608 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:54:39,608 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:54:39,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 05:54:39,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:54:39,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709595049] [2025-03-08 05:54:39,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709595049] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:54:39,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:54:39,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:54:39,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321419994] [2025-03-08 05:54:39,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:54:39,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:54:39,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:54:39,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:54:39,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:54:39,789 INFO L87 Difference]: Start difference. First operand 14449 states and 24609 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:54:41,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:54:41,073 INFO L93 Difference]: Finished difference Result 47960 states and 84487 transitions. [2025-03-08 05:54:41,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 05:54:41,073 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 164 [2025-03-08 05:54:41,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:54:41,216 INFO L225 Difference]: With dead ends: 47960 [2025-03-08 05:54:41,216 INFO L226 Difference]: Without dead ends: 33530 [2025-03-08 05:54:41,262 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:54:41,263 INFO L435 NwaCegarLoop]: 700 mSDtfsCounter, 1045 mSDsluCounter, 2147 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1064 SdHoareTripleChecker+Valid, 2847 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-08 05:54:41,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1064 Valid, 2847 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-08 05:54:41,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33530 states. [2025-03-08 05:54:41,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33530 to 32873. [2025-03-08 05:54:42,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32873 states, 30511 states have (on average 1.7010586345908034) internal successors, (51901), 31178 states have internal predecessors, (51901), 1305 states have call successors, (1305), 390 states have call predecessors, (1305), 1056 states have return successors, (5401), 1368 states have call predecessors, (5401), 1305 states have call successors, (5401) [2025-03-08 05:54:42,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32873 states to 32873 states and 58607 transitions. [2025-03-08 05:54:42,143 INFO L78 Accepts]: Start accepts. Automaton has 32873 states and 58607 transitions. Word has length 164 [2025-03-08 05:54:42,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:54:42,144 INFO L471 AbstractCegarLoop]: Abstraction has 32873 states and 58607 transitions. [2025-03-08 05:54:42,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:54:42,145 INFO L276 IsEmpty]: Start isEmpty. Operand 32873 states and 58607 transitions. [2025-03-08 05:54:42,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-03-08 05:54:42,156 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:54:42,156 INFO L218 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] [2025-03-08 05:54:42,156 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 05:54:42,157 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:54:42,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:54:42,157 INFO L85 PathProgramCache]: Analyzing trace with hash 77485932, now seen corresponding path program 1 times [2025-03-08 05:54:42,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:54:42,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964296553] [2025-03-08 05:54:42,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:54:42,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:54:42,166 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-08 05:54:42,170 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-08 05:54:42,170 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:54:42,170 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:54:42,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 05:54:42,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:54:42,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964296553] [2025-03-08 05:54:42,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964296553] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:54:42,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:54:42,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:54:42,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015179206] [2025-03-08 05:54:42,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:54:42,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:54:42,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:54:42,270 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:54:42,270 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:54:42,271 INFO L87 Difference]: Start difference. First operand 32873 states and 58607 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:54:44,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:54:44,493 INFO L93 Difference]: Finished difference Result 111760 states and 208191 transitions. [2025-03-08 05:54:44,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 05:54:44,494 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 164 [2025-03-08 05:54:44,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:54:44,834 INFO L225 Difference]: With dead ends: 111760 [2025-03-08 05:54:44,834 INFO L226 Difference]: Without dead ends: 78906 [2025-03-08 05:54:44,955 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:54:44,956 INFO L435 NwaCegarLoop]: 697 mSDtfsCounter, 1040 mSDsluCounter, 2138 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 2835 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 05:54:44,956 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 2835 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 05:54:44,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78906 states. [2025-03-08 05:54:46,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78906 to 77740. [2025-03-08 05:54:46,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77740 states, 72320 states have (on average 1.7386753318584072) internal successors, (125741), 74381 states have internal predecessors, (125741), 2585 states have call successors, (2585), 774 states have call predecessors, (2585), 2834 states have return successors, (18969), 2712 states have call predecessors, (18969), 2585 states have call successors, (18969) [2025-03-08 05:54:47,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77740 states to 77740 states and 147295 transitions. [2025-03-08 05:54:47,365 INFO L78 Accepts]: Start accepts. Automaton has 77740 states and 147295 transitions. Word has length 164 [2025-03-08 05:54:47,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:54:47,367 INFO L471 AbstractCegarLoop]: Abstraction has 77740 states and 147295 transitions. [2025-03-08 05:54:47,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:54:47,367 INFO L276 IsEmpty]: Start isEmpty. Operand 77740 states and 147295 transitions. [2025-03-08 05:54:47,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-03-08 05:54:47,397 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:54:47,398 INFO L218 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] [2025-03-08 05:54:47,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 05:54:47,398 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:54:47,398 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:54:47,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1370520915, now seen corresponding path program 1 times [2025-03-08 05:54:47,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:54:47,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358680931] [2025-03-08 05:54:47,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:54:47,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:54:47,413 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-08 05:54:47,419 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-08 05:54:47,420 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:54:47,420 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:54:47,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 05:54:47,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:54:47,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358680931] [2025-03-08 05:54:47,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358680931] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:54:47,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:54:47,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:54:47,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782550495] [2025-03-08 05:54:47,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:54:47,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:54:47,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:54:47,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:54:47,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:54:47,553 INFO L87 Difference]: Start difference. First operand 77740 states and 147295 transitions. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:54:52,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:54:52,771 INFO L93 Difference]: Finished difference Result 269917 states and 541505 transitions. [2025-03-08 05:54:52,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 05:54:52,772 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 164 [2025-03-08 05:54:52,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:54:53,795 INFO L225 Difference]: With dead ends: 269917 [2025-03-08 05:54:53,795 INFO L226 Difference]: Without dead ends: 192196 [2025-03-08 05:54:53,973 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:54:53,973 INFO L435 NwaCegarLoop]: 694 mSDtfsCounter, 1035 mSDsluCounter, 2129 mSDsCounter, 0 mSdLazyCounter, 1016 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 2823 SdHoareTripleChecker+Invalid, 1047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1016 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-08 05:54:53,973 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1054 Valid, 2823 Invalid, 1047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1016 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-08 05:54:54,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192196 states. [2025-03-08 05:54:59,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192196 to 190073. [2025-03-08 05:54:59,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190073 states, 177079 states have (on average 1.7742420049808278) internal successors, (314181), 183386 states have internal predecessors, (314181), 5145 states have call successors, (5145), 1542 states have call predecessors, (5145), 7848 states have return successors, (70681), 5400 states have call predecessors, (70681), 5145 states have call successors, (70681) [2025-03-08 05:55:01,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190073 states to 190073 states and 390007 transitions. [2025-03-08 05:55:01,428 INFO L78 Accepts]: Start accepts. Automaton has 190073 states and 390007 transitions. Word has length 164 [2025-03-08 05:55:01,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:55:01,430 INFO L471 AbstractCegarLoop]: Abstraction has 190073 states and 390007 transitions. [2025-03-08 05:55:01,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 05:55:01,431 INFO L276 IsEmpty]: Start isEmpty. Operand 190073 states and 390007 transitions. [2025-03-08 05:55:01,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-03-08 05:55:01,492 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:55:01,492 INFO L218 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] [2025-03-08 05:55:01,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-08 05:55:01,492 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:55:01,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:55:01,493 INFO L85 PathProgramCache]: Analyzing trace with hash -31757492, now seen corresponding path program 1 times [2025-03-08 05:55:01,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:55:01,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114779026] [2025-03-08 05:55:01,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:55:01,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:55:01,506 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-08 05:55:01,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-08 05:55:01,511 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:55:01,511 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:55:01,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 05:55:01,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:55:01,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [114779026] [2025-03-08 05:55:01,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [114779026] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:55:01,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:55:01,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 05:55:01,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961714557] [2025-03-08 05:55:01,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:55:01,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:55:01,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:55:01,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:55:01,640 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 05:55:01,640 INFO L87 Difference]: Start difference. First operand 190073 states and 390007 transitions. Second operand has 5 states, 5 states have (on average 30.8) internal successors, (154), 5 states have internal predecessors, (154), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)