./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/token_ring.07.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 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.07.cil-1.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 a6baa92d18991a792383fc99c5c300f37f700ba00714b15a3dbe7d2191a67ca9 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 14:44:01,365 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 14:44:01,419 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 14:44:01,423 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 14:44:01,423 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 14:44:01,443 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 14:44:01,444 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 14:44:01,444 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 14:44:01,444 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 14:44:01,444 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 14:44:01,445 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 14:44:01,445 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 14:44:01,445 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 14:44:01,445 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 14:44:01,445 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 14:44:01,445 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 14:44:01,445 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 14:44:01,445 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 14:44:01,445 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 14:44:01,446 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 14:44:01,446 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 14:44:01,446 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 14:44:01,446 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 14:44:01,446 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 14:44:01,446 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 14:44:01,446 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 14:44:01,446 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 14:44:01,446 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 14:44:01,446 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 14:44:01,446 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 14:44:01,447 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 14:44:01,447 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 14:44:01,447 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 14:44:01,447 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 14:44:01,447 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 14:44:01,447 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 14:44:01,447 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 14:44:01,447 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 14:44:01,447 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 14:44:01,447 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 14:44:01,447 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 14:44:01,448 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 14:44:01,448 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 14:44:01,448 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 -> a6baa92d18991a792383fc99c5c300f37f700ba00714b15a3dbe7d2191a67ca9 [2025-03-03 14:44:01,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 14:44:01,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 14:44:01,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 14:44:01,668 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 14:44:01,668 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 14:44:01,669 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.07.cil-1.c [2025-03-03 14:44:02,802 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36bc0c498/cbeed69b07a543f299db46bc481f366f/FLAG227dda8f8 [2025-03-03 14:44:03,029 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 14:44:03,030 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.07.cil-1.c [2025-03-03 14:44:03,041 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36bc0c498/cbeed69b07a543f299db46bc481f366f/FLAG227dda8f8 [2025-03-03 14:44:03,366 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36bc0c498/cbeed69b07a543f299db46bc481f366f [2025-03-03 14:44:03,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 14:44:03,368 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 14:44:03,369 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 14:44:03,369 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 14:44:03,373 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 14:44:03,373 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 02:44:03" (1/1) ... [2025-03-03 14:44:03,374 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60f8727e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:44:03, skipping insertion in model container [2025-03-03 14:44:03,375 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 02:44:03" (1/1) ... [2025-03-03 14:44:03,400 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 14:44:03,492 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.07.cil-1.c[671,684] [2025-03-03 14:44:03,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 14:44:03,567 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 14:44:03,576 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.07.cil-1.c[671,684] [2025-03-03 14:44:03,618 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 14:44:03,630 INFO L204 MainTranslator]: Completed translation [2025-03-03 14:44:03,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:44:03 WrapperNode [2025-03-03 14:44:03,631 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 14:44:03,631 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 14:44:03,631 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 14:44:03,631 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 14:44:03,635 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:44:03" (1/1) ... [2025-03-03 14:44:03,648 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:44:03" (1/1) ... [2025-03-03 14:44:03,681 INFO L138 Inliner]: procedures = 42, calls = 52, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 549 [2025-03-03 14:44:03,681 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 14:44:03,682 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 14:44:03,682 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 14:44:03,682 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 14:44:03,689 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:44:03" (1/1) ... [2025-03-03 14:44:03,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:44:03" (1/1) ... [2025-03-03 14:44:03,693 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:44:03" (1/1) ... [2025-03-03 14:44:03,710 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]. [2025-03-03 14:44:03,714 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:44:03" (1/1) ... [2025-03-03 14:44:03,714 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:44:03" (1/1) ... [2025-03-03 14:44:03,723 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:44:03" (1/1) ... [2025-03-03 14:44:03,726 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:44:03" (1/1) ... [2025-03-03 14:44:03,727 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:44:03" (1/1) ... [2025-03-03 14:44:03,728 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:44:03" (1/1) ... [2025-03-03 14:44:03,730 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 14:44:03,730 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 14:44:03,730 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 14:44:03,730 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 14:44:03,731 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:44:03" (1/1) ... [2025-03-03 14:44:03,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 14:44:03,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:44:03,759 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) [2025-03-03 14:44:03,761 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 [2025-03-03 14:44:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 14:44:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2025-03-03 14:44:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2025-03-03 14:44:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2025-03-03 14:44:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2025-03-03 14:44:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2025-03-03 14:44:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2025-03-03 14:44:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2025-03-03 14:44:03,778 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2025-03-03 14:44:03,778 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2025-03-03 14:44:03,779 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2025-03-03 14:44:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 14:44:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2025-03-03 14:44:03,779 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2025-03-03 14:44:03,779 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 14:44:03,779 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 14:44:03,869 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 14:44:03,871 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 14:44:04,368 INFO L? ?]: Removed 67 outVars from TransFormulas that were not future-live. [2025-03-03 14:44:04,369 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 14:44:04,379 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 14:44:04,380 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 14:44:04,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 02:44:04 BoogieIcfgContainer [2025-03-03 14:44:04,381 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 14:44:04,383 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 14:44:04,383 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 14:44:04,386 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 14:44:04,387 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 02:44:03" (1/3) ... [2025-03-03 14:44:04,387 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a724167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 02:44:04, skipping insertion in model container [2025-03-03 14:44:04,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:44:03" (2/3) ... [2025-03-03 14:44:04,388 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a724167 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 02:44:04, skipping insertion in model container [2025-03-03 14:44:04,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 02:44:04" (3/3) ... [2025-03-03 14:44:04,389 INFO L128 eAbstractionObserver]: Analyzing ICFG token_ring.07.cil-1.c [2025-03-03 14:44:04,401 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 14:44:04,402 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG token_ring.07.cil-1.c that has 7 procedures, 273 locations, 1 initial locations, 10 loop locations, and 1 error locations. [2025-03-03 14:44:04,447 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 14:44:04,454 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;@52b7b9fe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 14:44:04,454 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 14:44:04,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 273 states, 244 states have (on average 1.5573770491803278) internal successors, (380), 246 states have internal predecessors, (380), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2025-03-03 14:44:04,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2025-03-03 14:44:04,483 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:44:04,483 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] [2025-03-03 14:44:04,484 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:44:04,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:44:04,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1561748161, now seen corresponding path program 1 times [2025-03-03 14:44:04,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:44:04,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701901872] [2025-03-03 14:44:04,496 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:44:04,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:44:04,556 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-03-03 14:44:04,575 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-03-03 14:44:04,576 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:44:04,576 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:44:04,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 14:44:04,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:44:04,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701901872] [2025-03-03 14:44:04,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701901872] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:44:04,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:44:04,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 14:44:04,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005679322] [2025-03-03 14:44:04,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:44:04,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 14:44:04,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:44:04,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 14:44:04,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-03 14:44:04,864 INFO L87 Difference]: Start difference. First operand has 273 states, 244 states have (on average 1.5573770491803278) internal successors, (380), 246 states have internal predecessors, (380), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 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) [2025-03-03 14:44:05,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:44:05,383 INFO L93 Difference]: Finished difference Result 815 states and 1272 transitions. [2025-03-03 14:44:05,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 14:44:05,386 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 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 122 [2025-03-03 14:44:05,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:44:05,395 INFO L225 Difference]: With dead ends: 815 [2025-03-03 14:44:05,395 INFO L226 Difference]: Without dead ends: 549 [2025-03-03 14:44:05,402 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 [2025-03-03 14:44:05,404 INFO L435 NwaCegarLoop]: 326 mSDtfsCounter, 747 mSDsluCounter, 828 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 1154 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 14:44:05,404 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [762 Valid, 1154 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 14:44:05,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2025-03-03 14:44:05,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 530. [2025-03-03 14:44:05,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 479 states have (on average 1.5260960334029228) internal successors, (731), 481 states have internal predecessors, (731), 37 states have call successors, (37), 12 states have call predecessors, (37), 13 states have return successors, (38), 37 states have call predecessors, (38), 37 states have call successors, (38) [2025-03-03 14:44:05,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 806 transitions. [2025-03-03 14:44:05,465 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 806 transitions. Word has length 122 [2025-03-03 14:44:05,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:44:05,465 INFO L471 AbstractCegarLoop]: Abstraction has 530 states and 806 transitions. [2025-03-03 14:44:05,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 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) [2025-03-03 14:44:05,465 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 806 transitions. [2025-03-03 14:44:05,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2025-03-03 14:44:05,467 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:44:05,467 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] [2025-03-03 14:44:05,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 14:44:05,467 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:44:05,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:44:05,469 INFO L85 PathProgramCache]: Analyzing trace with hash -948517501, now seen corresponding path program 1 times [2025-03-03 14:44:05,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:44:05,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213713811] [2025-03-03 14:44:05,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:44:05,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:44:05,486 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-03-03 14:44:05,490 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-03-03 14:44:05,490 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:44:05,490 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:44:05,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 14:44:05,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:44:05,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213713811] [2025-03-03 14:44:05,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213713811] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:44:05,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:44:05,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 14:44:05,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942555384] [2025-03-03 14:44:05,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:44:05,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 14:44:05,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:44:05,678 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 14:44:05,678 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 14:44:05,678 INFO L87 Difference]: Start difference. First operand 530 states and 806 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 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) [2025-03-03 14:44:06,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:44:06,239 INFO L93 Difference]: Finished difference Result 1373 states and 2111 transitions. [2025-03-03 14:44:06,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 14:44:06,240 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 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 122 [2025-03-03 14:44:06,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:44:06,245 INFO L225 Difference]: With dead ends: 1373 [2025-03-03 14:44:06,245 INFO L226 Difference]: Without dead ends: 858 [2025-03-03 14:44:06,246 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 [2025-03-03 14:44:06,247 INFO L435 NwaCegarLoop]: 536 mSDtfsCounter, 743 mSDsluCounter, 1635 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 2171 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-03 14:44:06,247 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [758 Valid, 2171 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-03 14:44:06,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2025-03-03 14:44:06,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 775. [2025-03-03 14:44:06,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 775 states, 701 states have (on average 1.5178316690442226) internal successors, (1064), 704 states have internal predecessors, (1064), 53 states have call successors, (53), 18 states have call predecessors, (53), 20 states have return successors, (57), 54 states have call predecessors, (57), 53 states have call successors, (57) [2025-03-03 14:44:06,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 775 states to 775 states and 1174 transitions. [2025-03-03 14:44:06,289 INFO L78 Accepts]: Start accepts. Automaton has 775 states and 1174 transitions. Word has length 122 [2025-03-03 14:44:06,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:44:06,290 INFO L471 AbstractCegarLoop]: Abstraction has 775 states and 1174 transitions. [2025-03-03 14:44:06,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 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) [2025-03-03 14:44:06,290 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states and 1174 transitions. [2025-03-03 14:44:06,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2025-03-03 14:44:06,292 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:44:06,292 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] [2025-03-03 14:44:06,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-03 14:44:06,292 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:44:06,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:44:06,293 INFO L85 PathProgramCache]: Analyzing trace with hash -253870494, now seen corresponding path program 1 times [2025-03-03 14:44:06,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:44:06,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891819723] [2025-03-03 14:44:06,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:44:06,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:44:06,305 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-03-03 14:44:06,311 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-03-03 14:44:06,311 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:44:06,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:44:06,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 14:44:06,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:44:06,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891819723] [2025-03-03 14:44:06,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891819723] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:44:06,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:44:06,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 14:44:06,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579756729] [2025-03-03 14:44:06,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:44:06,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 14:44:06,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:44:06,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 14:44:06,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 14:44:06,482 INFO L87 Difference]: Start difference. First operand 775 states and 1174 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 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) [2025-03-03 14:44:07,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:44:07,016 INFO L93 Difference]: Finished difference Result 2148 states and 3294 transitions. [2025-03-03 14:44:07,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 14:44:07,016 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 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 122 [2025-03-03 14:44:07,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:44:07,026 INFO L225 Difference]: With dead ends: 2148 [2025-03-03 14:44:07,026 INFO L226 Difference]: Without dead ends: 1388 [2025-03-03 14:44:07,029 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 [2025-03-03 14:44:07,031 INFO L435 NwaCegarLoop]: 532 mSDtfsCounter, 738 mSDsluCounter, 1623 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 2155 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 14:44:07,032 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 2155 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 14:44:07,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2025-03-03 14:44:07,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1294. [2025-03-03 14:44:07,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1294 states, 1172 states have (on average 1.5196245733788396) internal successors, (1781), 1179 states have internal predecessors, (1781), 85 states have call successors, (85), 30 states have call predecessors, (85), 36 states have return successors, (101), 88 states have call predecessors, (101), 85 states have call successors, (101) [2025-03-03 14:44:07,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1294 states to 1294 states and 1967 transitions. [2025-03-03 14:44:07,120 INFO L78 Accepts]: Start accepts. Automaton has 1294 states and 1967 transitions. Word has length 122 [2025-03-03 14:44:07,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:44:07,121 INFO L471 AbstractCegarLoop]: Abstraction has 1294 states and 1967 transitions. [2025-03-03 14:44:07,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 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) [2025-03-03 14:44:07,121 INFO L276 IsEmpty]: Start isEmpty. Operand 1294 states and 1967 transitions. [2025-03-03 14:44:07,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2025-03-03 14:44:07,126 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:44:07,126 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] [2025-03-03 14:44:07,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-03 14:44:07,126 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:44:07,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:44:07,126 INFO L85 PathProgramCache]: Analyzing trace with hash 876916131, now seen corresponding path program 1 times [2025-03-03 14:44:07,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:44:07,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121307073] [2025-03-03 14:44:07,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:44:07,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:44:07,138 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-03-03 14:44:07,141 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-03-03 14:44:07,141 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:44:07,141 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:44:07,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 14:44:07,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:44:07,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121307073] [2025-03-03 14:44:07,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121307073] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:44:07,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:44:07,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 14:44:07,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970117970] [2025-03-03 14:44:07,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:44:07,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 14:44:07,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:44:07,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 14:44:07,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 14:44:07,285 INFO L87 Difference]: Start difference. First operand 1294 states and 1967 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 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) [2025-03-03 14:44:07,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:44:07,845 INFO L93 Difference]: Finished difference Result 3809 states and 5885 transitions. [2025-03-03 14:44:07,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 14:44:07,845 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 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 122 [2025-03-03 14:44:07,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:44:07,855 INFO L225 Difference]: With dead ends: 3809 [2025-03-03 14:44:07,855 INFO L226 Difference]: Without dead ends: 2530 [2025-03-03 14:44:07,859 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 [2025-03-03 14:44:07,859 INFO L435 NwaCegarLoop]: 529 mSDtfsCounter, 733 mSDsluCounter, 1614 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 2143 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 14:44:07,859 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 2143 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 14:44:07,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2530 states. [2025-03-03 14:44:07,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2530 to 2413. [2025-03-03 14:44:07,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2413 states, 2189 states have (on average 1.533576975788031) internal successors, (3357), 2210 states have internal predecessors, (3357), 149 states have call successors, (149), 54 states have call predecessors, (149), 74 states have return successors, (213), 156 states have call predecessors, (213), 149 states have call successors, (213) [2025-03-03 14:44:07,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2413 states to 2413 states and 3719 transitions. [2025-03-03 14:44:07,953 INFO L78 Accepts]: Start accepts. Automaton has 2413 states and 3719 transitions. Word has length 122 [2025-03-03 14:44:07,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:44:07,954 INFO L471 AbstractCegarLoop]: Abstraction has 2413 states and 3719 transitions. [2025-03-03 14:44:07,954 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 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) [2025-03-03 14:44:07,954 INFO L276 IsEmpty]: Start isEmpty. Operand 2413 states and 3719 transitions. [2025-03-03 14:44:07,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2025-03-03 14:44:07,956 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:44:07,956 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] [2025-03-03 14:44:07,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-03 14:44:07,957 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:44:07,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:44:07,958 INFO L85 PathProgramCache]: Analyzing trace with hash -56438206, now seen corresponding path program 1 times [2025-03-03 14:44:07,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:44:07,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929018985] [2025-03-03 14:44:07,958 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:44:07,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:44:07,967 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-03-03 14:44:07,972 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-03-03 14:44:07,972 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:44:07,972 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:44:08,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 14:44:08,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:44:08,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929018985] [2025-03-03 14:44:08,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929018985] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:44:08,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:44:08,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 14:44:08,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260994107] [2025-03-03 14:44:08,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:44:08,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 14:44:08,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:44:08,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 14:44:08,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 14:44:08,073 INFO L87 Difference]: Start difference. First operand 2413 states and 3719 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 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) [2025-03-03 14:44:08,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:44:08,655 INFO L93 Difference]: Finished difference Result 7436 states and 11719 transitions. [2025-03-03 14:44:08,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 14:44:08,656 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 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 122 [2025-03-03 14:44:08,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:44:08,675 INFO L225 Difference]: With dead ends: 7436 [2025-03-03 14:44:08,676 INFO L226 Difference]: Without dead ends: 5038 [2025-03-03 14:44:08,682 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 [2025-03-03 14:44:08,682 INFO L435 NwaCegarLoop]: 526 mSDtfsCounter, 728 mSDsluCounter, 1605 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 2131 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 14:44:08,682 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 2131 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 14:44:08,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5038 states. [2025-03-03 14:44:08,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5038 to 4876. [2025-03-03 14:44:08,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4876 states, 4430 states have (on average 1.5577878103837473) internal successors, (6901), 4497 states have internal predecessors, (6901), 277 states have call successors, (277), 102 states have call predecessors, (277), 168 states have return successors, (533), 292 states have call predecessors, (533), 277 states have call successors, (533) [2025-03-03 14:44:08,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4876 states to 4876 states and 7711 transitions. [2025-03-03 14:44:08,853 INFO L78 Accepts]: Start accepts. Automaton has 4876 states and 7711 transitions. Word has length 122 [2025-03-03 14:44:08,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:44:08,853 INFO L471 AbstractCegarLoop]: Abstraction has 4876 states and 7711 transitions. [2025-03-03 14:44:08,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 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) [2025-03-03 14:44:08,854 INFO L276 IsEmpty]: Start isEmpty. Operand 4876 states and 7711 transitions. [2025-03-03 14:44:08,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2025-03-03 14:44:08,860 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:44:08,860 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] [2025-03-03 14:44:08,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-03 14:44:08,861 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:44:08,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:44:08,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1437474243, now seen corresponding path program 1 times [2025-03-03 14:44:08,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:44:08,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312479052] [2025-03-03 14:44:08,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:44:08,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:44:08,870 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-03-03 14:44:08,872 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-03-03 14:44:08,872 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:44:08,872 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:44:08,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 14:44:08,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:44:08,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312479052] [2025-03-03 14:44:08,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312479052] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:44:08,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:44:08,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 14:44:08,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958665120] [2025-03-03 14:44:08,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:44:08,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 14:44:08,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:44:08,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 14:44:08,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 14:44:08,967 INFO L87 Difference]: Start difference. First operand 4876 states and 7711 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 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) [2025-03-03 14:44:09,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:44:09,625 INFO L93 Difference]: Finished difference Result 15531 states and 25321 transitions. [2025-03-03 14:44:09,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 14:44:09,625 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 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 122 [2025-03-03 14:44:09,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:44:09,674 INFO L225 Difference]: With dead ends: 15531 [2025-03-03 14:44:09,675 INFO L226 Difference]: Without dead ends: 10670 [2025-03-03 14:44:09,692 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 [2025-03-03 14:44:09,694 INFO L435 NwaCegarLoop]: 523 mSDtfsCounter, 723 mSDsluCounter, 1596 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 2119 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 14:44:09,694 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [738 Valid, 2119 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 14:44:09,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10670 states. [2025-03-03 14:44:10,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10670 to 10423. [2025-03-03 14:44:10,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10423 states, 9479 states have (on average 1.5888806836164153) internal successors, (15061), 9692 states have internal predecessors, (15061), 533 states have call successors, (533), 198 states have call predecessors, (533), 410 states have return successors, (1557), 564 states have call predecessors, (1557), 533 states have call successors, (1557) [2025-03-03 14:44:10,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10423 states to 10423 states and 17151 transitions. [2025-03-03 14:44:10,113 INFO L78 Accepts]: Start accepts. Automaton has 10423 states and 17151 transitions. Word has length 122 [2025-03-03 14:44:10,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:44:10,113 INFO L471 AbstractCegarLoop]: Abstraction has 10423 states and 17151 transitions. [2025-03-03 14:44:10,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 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) [2025-03-03 14:44:10,114 INFO L276 IsEmpty]: Start isEmpty. Operand 10423 states and 17151 transitions. [2025-03-03 14:44:10,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2025-03-03 14:44:10,119 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:44:10,119 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] [2025-03-03 14:44:10,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-03 14:44:10,119 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:44:10,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:44:10,120 INFO L85 PathProgramCache]: Analyzing trace with hash 238738978, now seen corresponding path program 1 times [2025-03-03 14:44:10,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:44:10,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815440650] [2025-03-03 14:44:10,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:44:10,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:44:10,127 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-03-03 14:44:10,129 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-03-03 14:44:10,129 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:44:10,129 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:44:10,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 14:44:10,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:44:10,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815440650] [2025-03-03 14:44:10,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815440650] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:44:10,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:44:10,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 14:44:10,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033433362] [2025-03-03 14:44:10,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:44:10,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 14:44:10,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:44:10,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 14:44:10,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 14:44:10,220 INFO L87 Difference]: Start difference. First operand 10423 states and 17151 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 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) [2025-03-03 14:44:11,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:44:11,066 INFO L93 Difference]: Finished difference Result 34030 states and 58391 transitions. [2025-03-03 14:44:11,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 14:44:11,067 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 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 122 [2025-03-03 14:44:11,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:44:11,178 INFO L225 Difference]: With dead ends: 34030 [2025-03-03 14:44:11,178 INFO L226 Difference]: Without dead ends: 23622 [2025-03-03 14:44:11,218 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 [2025-03-03 14:44:11,219 INFO L435 NwaCegarLoop]: 520 mSDtfsCounter, 718 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 2107 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 14:44:11,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 2107 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 14:44:11,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23622 states. [2025-03-03 14:44:12,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23622 to 23218. [2025-03-03 14:44:12,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23218 states, 21116 states have (on average 1.6234608827429438) internal successors, (34281), 21783 states have internal predecessors, (34281), 1045 states have call successors, (1045), 390 states have call predecessors, (1045), 1056 states have return successors, (5141), 1108 states have call predecessors, (5141), 1045 states have call successors, (5141) [2025-03-03 14:44:12,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23218 states to 23218 states and 40467 transitions. [2025-03-03 14:44:12,259 INFO L78 Accepts]: Start accepts. Automaton has 23218 states and 40467 transitions. Word has length 122 [2025-03-03 14:44:12,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:44:12,260 INFO L471 AbstractCegarLoop]: Abstraction has 23218 states and 40467 transitions. [2025-03-03 14:44:12,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 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) [2025-03-03 14:44:12,261 INFO L276 IsEmpty]: Start isEmpty. Operand 23218 states and 40467 transitions. [2025-03-03 14:44:12,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2025-03-03 14:44:12,272 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:44:12,273 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] [2025-03-03 14:44:12,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-03 14:44:12,273 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:44:12,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:44:12,273 INFO L85 PathProgramCache]: Analyzing trace with hash 754259427, now seen corresponding path program 1 times [2025-03-03 14:44:12,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:44:12,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100391437] [2025-03-03 14:44:12,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:44:12,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:44:12,282 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-03-03 14:44:12,284 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-03-03 14:44:12,284 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:44:12,285 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:44:12,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 14:44:12,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:44:12,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100391437] [2025-03-03 14:44:12,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100391437] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:44:12,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:44:12,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 14:44:12,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122043120] [2025-03-03 14:44:12,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:44:12,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 14:44:12,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:44:12,381 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 14:44:12,381 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 14:44:12,381 INFO L87 Difference]: Start difference. First operand 23218 states and 40467 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 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) [2025-03-03 14:44:13,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:44:13,994 INFO L93 Difference]: Finished difference Result 77317 states and 142797 transitions. [2025-03-03 14:44:13,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 14:44:13,994 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 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 122 [2025-03-03 14:44:13,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:44:14,183 INFO L225 Difference]: With dead ends: 77317 [2025-03-03 14:44:14,183 INFO L226 Difference]: Without dead ends: 54114 [2025-03-03 14:44:14,231 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 [2025-03-03 14:44:14,232 INFO L435 NwaCegarLoop]: 517 mSDtfsCounter, 713 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 779 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 14:44:14,233 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 2095 Invalid, 779 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 14:44:14,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54114 states. [2025-03-03 14:44:16,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54114 to 53425. [2025-03-03 14:44:16,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53425 states, 48521 states have (on average 1.658354114713217) internal successors, (80465), 50582 states have internal predecessors, (80465), 2069 states have call successors, (2069), 774 states have call predecessors, (2069), 2834 states have return successors, (18453), 2196 states have call predecessors, (18453), 2069 states have call successors, (18453) [2025-03-03 14:44:16,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53425 states to 53425 states and 100987 transitions. [2025-03-03 14:44:16,783 INFO L78 Accepts]: Start accepts. Automaton has 53425 states and 100987 transitions. Word has length 122 [2025-03-03 14:44:16,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:44:16,783 INFO L471 AbstractCegarLoop]: Abstraction has 53425 states and 100987 transitions. [2025-03-03 14:44:16,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 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) [2025-03-03 14:44:16,783 INFO L276 IsEmpty]: Start isEmpty. Operand 53425 states and 100987 transitions. [2025-03-03 14:44:16,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2025-03-03 14:44:16,802 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:44:16,802 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] [2025-03-03 14:44:16,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-03 14:44:16,803 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:44:16,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:44:16,803 INFO L85 PathProgramCache]: Analyzing trace with hash -198942206, now seen corresponding path program 1 times [2025-03-03 14:44:16,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:44:16,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12505764] [2025-03-03 14:44:16,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:44:16,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:44:16,811 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-03-03 14:44:16,814 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-03-03 14:44:16,814 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:44:16,814 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:44:16,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 14:44:16,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:44:16,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12505764] [2025-03-03 14:44:16,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12505764] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:44:16,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:44:16,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 14:44:16,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148825224] [2025-03-03 14:44:16,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:44:16,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 14:44:16,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:44:16,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 14:44:16,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 14:44:16,914 INFO L87 Difference]: Start difference. First operand 53425 states and 100987 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 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) [2025-03-03 14:44:20,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:44:20,308 INFO L93 Difference]: Finished difference Result 187752 states and 380796 transitions. [2025-03-03 14:44:20,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-03 14:44:20,310 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 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 122 [2025-03-03 14:44:20,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:44:21,117 INFO L225 Difference]: With dead ends: 187752 [2025-03-03 14:44:21,117 INFO L226 Difference]: Without dead ends: 134342 [2025-03-03 14:44:21,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-03 14:44:21,355 INFO L435 NwaCegarLoop]: 512 mSDtfsCounter, 932 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 2070 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 14:44:21,355 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 2070 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 14:44:21,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134342 states. [2025-03-03 14:44:28,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134342 to 125848. [2025-03-03 14:44:29,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125848 states, 114010 states have (on average 1.6921761249013245) internal successors, (192925), 120317 states have internal predecessors, (192925), 3989 states have call successors, (3989), 1542 states have call predecessors, (3989), 7848 states have return successors, (69525), 4244 states have call predecessors, (69525), 3989 states have call successors, (69525) [2025-03-03 14:44:29,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125848 states to 125848 states and 266439 transitions. [2025-03-03 14:44:29,992 INFO L78 Accepts]: Start accepts. Automaton has 125848 states and 266439 transitions. Word has length 122 [2025-03-03 14:44:29,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:44:29,992 INFO L471 AbstractCegarLoop]: Abstraction has 125848 states and 266439 transitions. [2025-03-03 14:44:29,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 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) [2025-03-03 14:44:29,993 INFO L276 IsEmpty]: Start isEmpty. Operand 125848 states and 266439 transitions. [2025-03-03 14:44:30,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2025-03-03 14:44:30,034 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:44:30,035 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] [2025-03-03 14:44:30,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-03 14:44:30,035 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:44:30,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:44:30,035 INFO L85 PathProgramCache]: Analyzing trace with hash 601593347, now seen corresponding path program 1 times [2025-03-03 14:44:30,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:44:30,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422705506] [2025-03-03 14:44:30,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:44:30,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:44:30,044 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-03-03 14:44:30,047 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-03-03 14:44:30,047 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:44:30,047 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:44:30,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 14:44:30,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:44:30,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422705506] [2025-03-03 14:44:30,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422705506] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:44:30,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:44:30,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 14:44:30,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835851197] [2025-03-03 14:44:30,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:44:30,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 14:44:30,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:44:30,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 14:44:30,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-03 14:44:30,150 INFO L87 Difference]: Start difference. First operand 125848 states and 266439 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 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) [2025-03-03 14:44:35,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:44:35,517 INFO L93 Difference]: Finished difference Result 304185 states and 684224 transitions. [2025-03-03 14:44:35,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 14:44:35,518 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 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 122 [2025-03-03 14:44:35,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:44:37,022 INFO L225 Difference]: With dead ends: 304185 [2025-03-03 14:44:37,022 INFO L226 Difference]: Without dead ends: 178352 [2025-03-03 14:44:37,638 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 [2025-03-03 14:44:37,639 INFO L435 NwaCegarLoop]: 291 mSDtfsCounter, 525 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 540 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-03 14:44:37,639 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [540 Valid, 766 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-03 14:44:37,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178352 states.