./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem11_label47.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem11_label47.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 d039f2d5fa21e99f5f2905e39d510c085a3c5debd52474b0e6ee96280e8d56ea --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-08 23:43:02,285 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-08 23:43:02,331 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-08 23:43:02,335 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-08 23:43:02,335 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-08 23:43:02,348 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-08 23:43:02,349 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-08 23:43:02,349 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-08 23:43:02,349 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-08 23:43:02,349 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-08 23:43:02,349 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-08 23:43:02,349 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-08 23:43:02,350 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-08 23:43:02,350 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-08 23:43:02,350 INFO L153 SettingsManager]: * Use SBE=true [2025-01-08 23:43:02,350 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-08 23:43:02,350 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-08 23:43:02,350 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-08 23:43:02,350 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-08 23:43:02,350 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-08 23:43:02,350 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-08 23:43:02,351 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-08 23:43:02,351 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-08 23:43:02,351 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-08 23:43:02,351 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-08 23:43:02,351 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-08 23:43:02,351 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-08 23:43:02,351 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-08 23:43:02,351 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-08 23:43:02,351 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-08 23:43:02,351 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-08 23:43:02,351 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-08 23:43:02,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-08 23:43:02,352 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-08 23:43:02,352 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-08 23:43:02,352 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-08 23:43:02,352 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-08 23:43:02,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-08 23:43:02,352 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-08 23:43:02,352 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-08 23:43:02,352 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-08 23:43:02,352 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-08 23:43:02,352 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-08 23:43:02,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-08 23:43:02,352 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-08 23:43:02,352 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-08 23:43:02,352 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-08 23:43:02,352 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-08 23:43:02,353 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-jdk21/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 -> d039f2d5fa21e99f5f2905e39d510c085a3c5debd52474b0e6ee96280e8d56ea [2025-01-08 23:43:02,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-08 23:43:02,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-08 23:43:02,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-08 23:43:02,539 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-08 23:43:02,539 INFO L274 PluginConnector]: CDTParser initialized [2025-01-08 23:43:02,545 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label47.c [2025-01-08 23:43:03,717 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3e414b6b4/d99697c8ed8d4d88a328116fffb7a313/FLAGfba6e55fd [2025-01-08 23:43:04,089 INFO L384 CDTParser]: Found 1 translation units. [2025-01-08 23:43:04,090 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label47.c [2025-01-08 23:43:04,098 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3e414b6b4/d99697c8ed8d4d88a328116fffb7a313/FLAGfba6e55fd [2025-01-08 23:43:04,298 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/3e414b6b4/d99697c8ed8d4d88a328116fffb7a313 [2025-01-08 23:43:04,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-08 23:43:04,301 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-08 23:43:04,302 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-08 23:43:04,302 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-08 23:43:04,305 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-08 23:43:04,305 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.01 11:43:04" (1/1) ... [2025-01-08 23:43:04,306 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b7bcf3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:43:04, skipping insertion in model container [2025-01-08 23:43:04,306 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.01 11:43:04" (1/1) ... [2025-01-08 23:43:04,335 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-08 23:43:04,472 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label47.c[5129,5142] [2025-01-08 23:43:04,674 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-08 23:43:04,682 INFO L200 MainTranslator]: Completed pre-run [2025-01-08 23:43:04,704 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label47.c[5129,5142] [2025-01-08 23:43:04,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-08 23:43:04,793 INFO L204 MainTranslator]: Completed translation [2025-01-08 23:43:04,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:43:04 WrapperNode [2025-01-08 23:43:04,795 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-08 23:43:04,796 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-08 23:43:04,796 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-08 23:43:04,796 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-08 23:43:04,800 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:43:04" (1/1) ... [2025-01-08 23:43:04,822 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:43:04" (1/1) ... [2025-01-08 23:43:04,903 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 997 [2025-01-08 23:43:04,903 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-08 23:43:04,904 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-08 23:43:04,904 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-08 23:43:04,905 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-08 23:43:04,910 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:43:04" (1/1) ... [2025-01-08 23:43:04,910 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:43:04" (1/1) ... [2025-01-08 23:43:04,923 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:43:04" (1/1) ... [2025-01-08 23:43:04,963 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]. [2025-01-08 23:43:04,965 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:43:04" (1/1) ... [2025-01-08 23:43:04,965 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:43:04" (1/1) ... [2025-01-08 23:43:05,003 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:43:04" (1/1) ... [2025-01-08 23:43:05,015 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:43:04" (1/1) ... [2025-01-08 23:43:05,024 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:43:04" (1/1) ... [2025-01-08 23:43:05,037 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:43:04" (1/1) ... [2025-01-08 23:43:05,043 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:43:04" (1/1) ... [2025-01-08 23:43:05,055 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-08 23:43:05,057 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-08 23:43:05,057 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-08 23:43:05,057 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-08 23:43:05,058 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:43:04" (1/1) ... [2025-01-08 23:43:05,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-08 23:43:05,072 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-08 23:43:05,086 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-08 23:43:05,089 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-08 23:43:05,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-08 23:43:05,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-08 23:43:05,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-08 23:43:05,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-08 23:43:05,156 INFO L234 CfgBuilder]: Building ICFG [2025-01-08 23:43:05,158 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-08 23:43:06,252 INFO L? ?]: Removed 129 outVars from TransFormulas that were not future-live. [2025-01-08 23:43:06,253 INFO L283 CfgBuilder]: Performing block encoding [2025-01-08 23:43:06,262 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-08 23:43:06,262 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-08 23:43:06,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.01 11:43:06 BoogieIcfgContainer [2025-01-08 23:43:06,263 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-08 23:43:06,264 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-08 23:43:06,264 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-08 23:43:06,267 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-08 23:43:06,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.01 11:43:04" (1/3) ... [2025-01-08 23:43:06,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29c2f933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.01 11:43:06, skipping insertion in model container [2025-01-08 23:43:06,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.01 11:43:04" (2/3) ... [2025-01-08 23:43:06,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29c2f933 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.01 11:43:06, skipping insertion in model container [2025-01-08 23:43:06,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.01 11:43:06" (3/3) ... [2025-01-08 23:43:06,268 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem11_label47.c [2025-01-08 23:43:06,278 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-08 23:43:06,279 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem11_label47.c that has 1 procedures, 283 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-08 23:43:06,312 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-08 23:43:06,319 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;@149e58c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-08 23:43:06,319 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-08 23:43:06,322 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7117437722419928) internal successors, (481), 282 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:06,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2025-01-08 23:43:06,326 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:43:06,326 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] [2025-01-08 23:43:06,327 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:43:06,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:43:06,330 INFO L85 PathProgramCache]: Analyzing trace with hash -767624068, now seen corresponding path program 1 times [2025-01-08 23:43:06,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:43:06,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376564853] [2025-01-08 23:43:06,335 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:43:06,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:43:06,379 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-01-08 23:43:06,402 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-01-08 23:43:06,403 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:43:06,403 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:43:06,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-08 23:43:06,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:43:06,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376564853] [2025-01-08 23:43:06,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376564853] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:43:06,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:43:06,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-08 23:43:06,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589515733] [2025-01-08 23:43:06,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:43:06,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:43:06,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:43:06,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:43:06,543 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:43:06,545 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7117437722419928) internal successors, (481), 282 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:07,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:43:07,451 INFO L93 Difference]: Finished difference Result 769 states and 1357 transitions. [2025-01-08 23:43:07,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:43:07,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2025-01-08 23:43:07,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:43:07,464 INFO L225 Difference]: With dead ends: 769 [2025-01-08 23:43:07,464 INFO L226 Difference]: Without dead ends: 422 [2025-01-08 23:43:07,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:43:07,472 INFO L435 NwaCegarLoop]: 142 mSDtfsCounter, 205 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-01-08 23:43:07,473 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 164 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-01-08 23:43:07,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2025-01-08 23:43:07,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 412. [2025-01-08 23:43:07,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 411 states have (on average 1.5231143552311435) internal successors, (626), 411 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:07,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 626 transitions. [2025-01-08 23:43:07,507 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 626 transitions. Word has length 35 [2025-01-08 23:43:07,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:43:07,508 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 626 transitions. [2025-01-08 23:43:07,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:07,508 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 626 transitions. [2025-01-08 23:43:07,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2025-01-08 23:43:07,510 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:43:07,510 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:43:07,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-08 23:43:07,510 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:43:07,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:43:07,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1426261250, now seen corresponding path program 1 times [2025-01-08 23:43:07,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:43:07,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303483857] [2025-01-08 23:43:07,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:43:07,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:43:07,529 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-01-08 23:43:07,565 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-01-08 23:43:07,565 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:43:07,565 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:43:07,718 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-08 23:43:07,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:43:07,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303483857] [2025-01-08 23:43:07,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303483857] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:43:07,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:43:07,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-08 23:43:07,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58966187] [2025-01-08 23:43:07,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:43:07,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:43:07,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:43:07,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:43:07,720 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:43:07,721 INFO L87 Difference]: Start difference. First operand 412 states and 626 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:08,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:43:08,343 INFO L93 Difference]: Finished difference Result 1199 states and 1829 transitions. [2025-01-08 23:43:08,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:43:08,344 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2025-01-08 23:43:08,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:43:08,347 INFO L225 Difference]: With dead ends: 1199 [2025-01-08 23:43:08,347 INFO L226 Difference]: Without dead ends: 789 [2025-01-08 23:43:08,348 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:43:08,349 INFO L435 NwaCegarLoop]: 147 mSDtfsCounter, 156 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 641 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-08 23:43:08,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 176 Invalid, 641 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-08 23:43:08,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 789 states. [2025-01-08 23:43:08,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 789 to 789. [2025-01-08 23:43:08,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 788 states have (on average 1.3743654822335025) internal successors, (1083), 788 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:08,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1083 transitions. [2025-01-08 23:43:08,371 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1083 transitions. Word has length 101 [2025-01-08 23:43:08,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:43:08,372 INFO L471 AbstractCegarLoop]: Abstraction has 789 states and 1083 transitions. [2025-01-08 23:43:08,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:08,372 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1083 transitions. [2025-01-08 23:43:08,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-01-08 23:43:08,374 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:43:08,374 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:43:08,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-08 23:43:08,374 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:43:08,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:43:08,375 INFO L85 PathProgramCache]: Analyzing trace with hash 1441160648, now seen corresponding path program 1 times [2025-01-08 23:43:08,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:43:08,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258913205] [2025-01-08 23:43:08,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:43:08,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:43:08,390 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-01-08 23:43:08,406 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-01-08 23:43:08,407 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:43:08,407 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:43:08,654 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-08 23:43:08,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:43:08,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258913205] [2025-01-08 23:43:08,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258913205] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:43:08,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:43:08,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-08 23:43:08,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481979392] [2025-01-08 23:43:08,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:43:08,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:43:08,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:43:08,657 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:43:08,657 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:43:08,657 INFO L87 Difference]: Start difference. First operand 789 states and 1083 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:09,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:43:09,538 INFO L93 Difference]: Finished difference Result 2314 states and 3181 transitions. [2025-01-08 23:43:09,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:43:09,539 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2025-01-08 23:43:09,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:43:09,547 INFO L225 Difference]: With dead ends: 2314 [2025-01-08 23:43:09,547 INFO L226 Difference]: Without dead ends: 1527 [2025-01-08 23:43:09,548 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:43:09,548 INFO L435 NwaCegarLoop]: 169 mSDtfsCounter, 119 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 116 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 116 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-01-08 23:43:09,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 193 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [116 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-01-08 23:43:09,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2025-01-08 23:43:09,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1526. [2025-01-08 23:43:09,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1526 states, 1525 states have (on average 1.217049180327869) internal successors, (1856), 1525 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:09,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1526 states to 1526 states and 1856 transitions. [2025-01-08 23:43:09,571 INFO L78 Accepts]: Start accepts. Automaton has 1526 states and 1856 transitions. Word has length 105 [2025-01-08 23:43:09,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:43:09,571 INFO L471 AbstractCegarLoop]: Abstraction has 1526 states and 1856 transitions. [2025-01-08 23:43:09,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 2 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:09,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1526 states and 1856 transitions. [2025-01-08 23:43:09,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2025-01-08 23:43:09,575 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:43:09,575 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:43:09,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-08 23:43:09,576 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:43:09,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:43:09,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1386532787, now seen corresponding path program 1 times [2025-01-08 23:43:09,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:43:09,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227003681] [2025-01-08 23:43:09,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:43:09,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:43:09,594 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 162 statements into 1 equivalence classes. [2025-01-08 23:43:09,621 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 162 of 162 statements. [2025-01-08 23:43:09,621 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:43:09,621 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:43:09,756 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-08 23:43:09,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:43:09,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227003681] [2025-01-08 23:43:09,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227003681] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:43:09,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:43:09,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-08 23:43:09,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496796694] [2025-01-08 23:43:09,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:43:09,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:43:09,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:43:09,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:43:09,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:43:09,758 INFO L87 Difference]: Start difference. First operand 1526 states and 1856 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:11,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:43:11,004 INFO L93 Difference]: Finished difference Result 3257 states and 4123 transitions. [2025-01-08 23:43:11,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:43:11,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 162 [2025-01-08 23:43:11,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:43:11,012 INFO L225 Difference]: With dead ends: 3257 [2025-01-08 23:43:11,012 INFO L226 Difference]: Without dead ends: 1917 [2025-01-08 23:43:11,013 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:43:11,014 INFO L435 NwaCegarLoop]: 288 mSDtfsCounter, 200 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-01-08 23:43:11,014 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 320 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-01-08 23:43:11,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1917 states. [2025-01-08 23:43:11,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1917 to 1914. [2025-01-08 23:43:11,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1914 states, 1913 states have (on average 1.2462101411395714) internal successors, (2384), 1913 states have internal predecessors, (2384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:11,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 2384 transitions. [2025-01-08 23:43:11,043 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 2384 transitions. Word has length 162 [2025-01-08 23:43:11,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:43:11,043 INFO L471 AbstractCegarLoop]: Abstraction has 1914 states and 2384 transitions. [2025-01-08 23:43:11,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:11,043 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 2384 transitions. [2025-01-08 23:43:11,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2025-01-08 23:43:11,047 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:43:11,047 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:43:11,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-08 23:43:11,047 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:43:11,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:43:11,048 INFO L85 PathProgramCache]: Analyzing trace with hash 884436843, now seen corresponding path program 1 times [2025-01-08 23:43:11,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:43:11,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954316789] [2025-01-08 23:43:11,048 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:43:11,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:43:11,091 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 217 statements into 1 equivalence classes. [2025-01-08 23:43:11,105 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 217 of 217 statements. [2025-01-08 23:43:11,106 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:43:11,106 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:43:11,235 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2025-01-08 23:43:11,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:43:11,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954316789] [2025-01-08 23:43:11,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954316789] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:43:11,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:43:11,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-08 23:43:11,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31866874] [2025-01-08 23:43:11,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:43:11,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:43:11,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:43:11,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:43:11,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:43:11,236 INFO L87 Difference]: Start difference. First operand 1914 states and 2384 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:12,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:43:12,219 INFO L93 Difference]: Finished difference Result 4389 states and 5590 transitions. [2025-01-08 23:43:12,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:43:12,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2025-01-08 23:43:12,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:43:12,233 INFO L225 Difference]: With dead ends: 4389 [2025-01-08 23:43:12,237 INFO L226 Difference]: Without dead ends: 2661 [2025-01-08 23:43:12,239 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:43:12,243 INFO L435 NwaCegarLoop]: 370 mSDtfsCounter, 162 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2025-01-08 23:43:12,243 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 391 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2025-01-08 23:43:12,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2661 states. [2025-01-08 23:43:12,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2661 to 2467. [2025-01-08 23:43:12,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2467 states, 2466 states have (on average 1.2347931873479319) internal successors, (3045), 2466 states have internal predecessors, (3045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:12,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2467 states to 2467 states and 3045 transitions. [2025-01-08 23:43:12,306 INFO L78 Accepts]: Start accepts. Automaton has 2467 states and 3045 transitions. Word has length 217 [2025-01-08 23:43:12,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:43:12,307 INFO L471 AbstractCegarLoop]: Abstraction has 2467 states and 3045 transitions. [2025-01-08 23:43:12,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:12,307 INFO L276 IsEmpty]: Start isEmpty. Operand 2467 states and 3045 transitions. [2025-01-08 23:43:12,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2025-01-08 23:43:12,310 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:43:12,311 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:43:12,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-08 23:43:12,311 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:43:12,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:43:12,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1415403686, now seen corresponding path program 1 times [2025-01-08 23:43:12,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:43:12,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409420648] [2025-01-08 23:43:12,314 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:43:12,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:43:12,341 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 223 statements into 1 equivalence classes. [2025-01-08 23:43:12,360 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 223 of 223 statements. [2025-01-08 23:43:12,360 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:43:12,360 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:43:12,530 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2025-01-08 23:43:12,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:43:12,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409420648] [2025-01-08 23:43:12,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409420648] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:43:12,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:43:12,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-08 23:43:12,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353180832] [2025-01-08 23:43:12,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:43:12,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:43:12,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:43:12,534 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:43:12,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:43:12,535 INFO L87 Difference]: Start difference. First operand 2467 states and 3045 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:13,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:43:13,180 INFO L93 Difference]: Finished difference Result 5862 states and 7297 transitions. [2025-01-08 23:43:13,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:43:13,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2025-01-08 23:43:13,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:43:13,189 INFO L225 Difference]: With dead ends: 5862 [2025-01-08 23:43:13,190 INFO L226 Difference]: Without dead ends: 3397 [2025-01-08 23:43:13,192 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:43:13,193 INFO L435 NwaCegarLoop]: 369 mSDtfsCounter, 161 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-08 23:43:13,193 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 391 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-08 23:43:13,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3397 states. [2025-01-08 23:43:13,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3397 to 3388. [2025-01-08 23:43:13,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3388 states, 3387 states have (on average 1.2078535577206968) internal successors, (4091), 3387 states have internal predecessors, (4091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:13,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3388 states to 3388 states and 4091 transitions. [2025-01-08 23:43:13,235 INFO L78 Accepts]: Start accepts. Automaton has 3388 states and 4091 transitions. Word has length 223 [2025-01-08 23:43:13,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:43:13,235 INFO L471 AbstractCegarLoop]: Abstraction has 3388 states and 4091 transitions. [2025-01-08 23:43:13,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:13,236 INFO L276 IsEmpty]: Start isEmpty. Operand 3388 states and 4091 transitions. [2025-01-08 23:43:13,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2025-01-08 23:43:13,240 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:43:13,240 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:43:13,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-08 23:43:13,240 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:43:13,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:43:13,241 INFO L85 PathProgramCache]: Analyzing trace with hash 2124769271, now seen corresponding path program 1 times [2025-01-08 23:43:13,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:43:13,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443169460] [2025-01-08 23:43:13,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:43:13,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:43:13,281 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 294 statements into 1 equivalence classes. [2025-01-08 23:43:13,297 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 294 of 294 statements. [2025-01-08 23:43:13,297 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:43:13,297 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:43:13,465 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 278 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-01-08 23:43:13,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:43:13,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443169460] [2025-01-08 23:43:13,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443169460] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:43:13,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:43:13,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-08 23:43:13,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822126819] [2025-01-08 23:43:13,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:43:13,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:43:13,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:43:13,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:43:13,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:43:13,467 INFO L87 Difference]: Start difference. First operand 3388 states and 4091 transitions. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:14,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:43:14,045 INFO L93 Difference]: Finished difference Result 6788 states and 8205 transitions. [2025-01-08 23:43:14,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:43:14,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 294 [2025-01-08 23:43:14,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:43:14,053 INFO L225 Difference]: With dead ends: 6788 [2025-01-08 23:43:14,053 INFO L226 Difference]: Without dead ends: 3402 [2025-01-08 23:43:14,055 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:43:14,056 INFO L435 NwaCegarLoop]: 315 mSDtfsCounter, 137 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-08 23:43:14,056 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 335 Invalid, 643 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-08 23:43:14,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3402 states. [2025-01-08 23:43:14,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3402 to 3020. [2025-01-08 23:43:14,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3020 states, 3019 states have (on average 1.181517058628685) internal successors, (3567), 3019 states have internal predecessors, (3567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:14,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3020 states to 3020 states and 3567 transitions. [2025-01-08 23:43:14,088 INFO L78 Accepts]: Start accepts. Automaton has 3020 states and 3567 transitions. Word has length 294 [2025-01-08 23:43:14,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:43:14,088 INFO L471 AbstractCegarLoop]: Abstraction has 3020 states and 3567 transitions. [2025-01-08 23:43:14,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:14,088 INFO L276 IsEmpty]: Start isEmpty. Operand 3020 states and 3567 transitions. [2025-01-08 23:43:14,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2025-01-08 23:43:14,092 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:43:14,092 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:43:14,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-08 23:43:14,092 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:43:14,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:43:14,093 INFO L85 PathProgramCache]: Analyzing trace with hash 969135416, now seen corresponding path program 1 times [2025-01-08 23:43:14,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:43:14,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562418240] [2025-01-08 23:43:14,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:43:14,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:43:14,113 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 295 statements into 1 equivalence classes. [2025-01-08 23:43:14,126 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 295 of 295 statements. [2025-01-08 23:43:14,127 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:43:14,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:43:14,219 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 245 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2025-01-08 23:43:14,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:43:14,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562418240] [2025-01-08 23:43:14,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562418240] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:43:14,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:43:14,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-08 23:43:14,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014988753] [2025-01-08 23:43:14,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:43:14,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:43:14,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:43:14,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:43:14,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:43:14,221 INFO L87 Difference]: Start difference. First operand 3020 states and 3567 transitions. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:14,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:43:14,747 INFO L93 Difference]: Finished difference Result 6015 states and 7099 transitions. [2025-01-08 23:43:14,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:43:14,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 295 [2025-01-08 23:43:14,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:43:14,754 INFO L225 Difference]: With dead ends: 6015 [2025-01-08 23:43:14,754 INFO L226 Difference]: Without dead ends: 2997 [2025-01-08 23:43:14,756 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:43:14,757 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 161 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 141 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-08 23:43:14,757 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 151 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [141 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-08 23:43:14,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2997 states. [2025-01-08 23:43:14,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2997 to 2995. [2025-01-08 23:43:14,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2995 states, 2994 states have (on average 1.1329325317301269) internal successors, (3392), 2994 states have internal predecessors, (3392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:14,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2995 states to 2995 states and 3392 transitions. [2025-01-08 23:43:14,782 INFO L78 Accepts]: Start accepts. Automaton has 2995 states and 3392 transitions. Word has length 295 [2025-01-08 23:43:14,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:43:14,783 INFO L471 AbstractCegarLoop]: Abstraction has 2995 states and 3392 transitions. [2025-01-08 23:43:14,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 3 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:14,783 INFO L276 IsEmpty]: Start isEmpty. Operand 2995 states and 3392 transitions. [2025-01-08 23:43:14,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2025-01-08 23:43:14,786 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:43:14,786 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:43:14,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-08 23:43:14,787 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:43:14,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:43:14,787 INFO L85 PathProgramCache]: Analyzing trace with hash -842410052, now seen corresponding path program 1 times [2025-01-08 23:43:14,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:43:14,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917888565] [2025-01-08 23:43:14,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:43:14,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:43:14,808 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 300 statements into 1 equivalence classes. [2025-01-08 23:43:14,821 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 300 of 300 statements. [2025-01-08 23:43:14,821 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:43:14,821 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:43:14,919 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2025-01-08 23:43:14,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:43:14,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917888565] [2025-01-08 23:43:14,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917888565] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:43:14,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:43:14,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-08 23:43:14,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433165834] [2025-01-08 23:43:14,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:43:14,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:43:14,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:43:14,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:43:14,921 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:43:14,921 INFO L87 Difference]: Start difference. First operand 2995 states and 3392 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:15,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:43:15,424 INFO L93 Difference]: Finished difference Result 6907 states and 7810 transitions. [2025-01-08 23:43:15,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:43:15,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 300 [2025-01-08 23:43:15,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:43:15,432 INFO L225 Difference]: With dead ends: 6907 [2025-01-08 23:43:15,432 INFO L226 Difference]: Without dead ends: 3914 [2025-01-08 23:43:15,434 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:43:15,434 INFO L435 NwaCegarLoop]: 122 mSDtfsCounter, 187 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-08 23:43:15,434 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 146 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-08 23:43:15,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3914 states. [2025-01-08 23:43:15,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3914 to 2069. [2025-01-08 23:43:15,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2069 states, 2068 states have (on average 1.1479690522243713) internal successors, (2374), 2068 states have internal predecessors, (2374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:15,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2069 states to 2069 states and 2374 transitions. [2025-01-08 23:43:15,459 INFO L78 Accepts]: Start accepts. Automaton has 2069 states and 2374 transitions. Word has length 300 [2025-01-08 23:43:15,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:43:15,459 INFO L471 AbstractCegarLoop]: Abstraction has 2069 states and 2374 transitions. [2025-01-08 23:43:15,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:15,459 INFO L276 IsEmpty]: Start isEmpty. Operand 2069 states and 2374 transitions. [2025-01-08 23:43:15,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2025-01-08 23:43:15,462 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:43:15,462 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:43:15,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-08 23:43:15,463 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:43:15,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:43:15,463 INFO L85 PathProgramCache]: Analyzing trace with hash 2112523481, now seen corresponding path program 1 times [2025-01-08 23:43:15,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:43:15,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128221321] [2025-01-08 23:43:15,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:43:15,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:43:15,488 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 340 statements into 1 equivalence classes. [2025-01-08 23:43:15,503 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 340 of 340 statements. [2025-01-08 23:43:15,504 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:43:15,504 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:43:15,772 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 207 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-08 23:43:15,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:43:15,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128221321] [2025-01-08 23:43:15,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128221321] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:43:15,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:43:15,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-08 23:43:15,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860775026] [2025-01-08 23:43:15,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:43:15,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-08 23:43:15,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:43:15,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-08 23:43:15,774 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-08 23:43:15,774 INFO L87 Difference]: Start difference. First operand 2069 states and 2374 transitions. Second operand has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:16,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:43:16,737 INFO L93 Difference]: Finished difference Result 6353 states and 7292 transitions. [2025-01-08 23:43:16,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-08 23:43:16,738 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 340 [2025-01-08 23:43:16,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:43:16,746 INFO L225 Difference]: With dead ends: 6353 [2025-01-08 23:43:16,747 INFO L226 Difference]: Without dead ends: 4286 [2025-01-08 23:43:16,748 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-08 23:43:16,749 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 255 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 229 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 229 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-01-08 23:43:16,749 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 67 Invalid, 1289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [229 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-01-08 23:43:16,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4286 states. [2025-01-08 23:43:16,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4286 to 3732. [2025-01-08 23:43:16,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3732 states, 3731 states have (on average 1.1307960332350577) internal successors, (4219), 3731 states have internal predecessors, (4219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:16,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3732 states to 3732 states and 4219 transitions. [2025-01-08 23:43:16,803 INFO L78 Accepts]: Start accepts. Automaton has 3732 states and 4219 transitions. Word has length 340 [2025-01-08 23:43:16,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:43:16,803 INFO L471 AbstractCegarLoop]: Abstraction has 3732 states and 4219 transitions. [2025-01-08 23:43:16,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:16,804 INFO L276 IsEmpty]: Start isEmpty. Operand 3732 states and 4219 transitions. [2025-01-08 23:43:16,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2025-01-08 23:43:16,810 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:43:16,810 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:43:16,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-08 23:43:16,810 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:43:16,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:43:16,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1506423155, now seen corresponding path program 1 times [2025-01-08 23:43:16,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:43:16,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072522338] [2025-01-08 23:43:16,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:43:16,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:43:16,842 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 414 statements into 1 equivalence classes. [2025-01-08 23:43:16,861 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 414 of 414 statements. [2025-01-08 23:43:16,861 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:43:16,861 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:43:17,104 INFO L134 CoverageAnalysis]: Checked inductivity of 418 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2025-01-08 23:43:17,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:43:17,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072522338] [2025-01-08 23:43:17,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072522338] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:43:17,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:43:17,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-08 23:43:17,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160033920] [2025-01-08 23:43:17,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:43:17,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-08 23:43:17,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:43:17,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-08 23:43:17,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-08 23:43:17,106 INFO L87 Difference]: Start difference. First operand 3732 states and 4219 transitions. Second operand has 4 states, 4 states have (on average 77.75) internal successors, (311), 4 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:18,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:43:18,012 INFO L93 Difference]: Finished difference Result 8752 states and 9872 transitions. [2025-01-08 23:43:18,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-08 23:43:18,012 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 77.75) internal successors, (311), 4 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 414 [2025-01-08 23:43:18,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:43:18,023 INFO L225 Difference]: With dead ends: 8752 [2025-01-08 23:43:18,023 INFO L226 Difference]: Without dead ends: 5022 [2025-01-08 23:43:18,026 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-08 23:43:18,027 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 264 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1056 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 1265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 1056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-01-08 23:43:18,027 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 67 Invalid, 1265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 1056 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-01-08 23:43:18,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5022 states. [2025-01-08 23:43:18,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5022 to 3732. [2025-01-08 23:43:18,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3732 states, 3731 states have (on average 1.1307960332350577) internal successors, (4219), 3731 states have internal predecessors, (4219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:18,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3732 states to 3732 states and 4219 transitions. [2025-01-08 23:43:18,091 INFO L78 Accepts]: Start accepts. Automaton has 3732 states and 4219 transitions. Word has length 414 [2025-01-08 23:43:18,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:43:18,092 INFO L471 AbstractCegarLoop]: Abstraction has 3732 states and 4219 transitions. [2025-01-08 23:43:18,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.75) internal successors, (311), 4 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:18,092 INFO L276 IsEmpty]: Start isEmpty. Operand 3732 states and 4219 transitions. [2025-01-08 23:43:18,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 666 [2025-01-08 23:43:18,103 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:43:18,103 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:43:18,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-08 23:43:18,103 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:43:18,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:43:18,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1419575434, now seen corresponding path program 1 times [2025-01-08 23:43:18,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:43:18,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321302100] [2025-01-08 23:43:18,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:43:18,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:43:18,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 665 statements into 1 equivalence classes. [2025-01-08 23:43:18,160 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 665 of 665 statements. [2025-01-08 23:43:18,160 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:43:18,160 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:43:18,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1213 backedges. 838 proven. 0 refuted. 0 times theorem prover too weak. 375 trivial. 0 not checked. [2025-01-08 23:43:18,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:43:18,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321302100] [2025-01-08 23:43:18,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321302100] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:43:18,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:43:18,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-08 23:43:18,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444910880] [2025-01-08 23:43:18,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:43:18,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-08 23:43:18,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:43:18,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-08 23:43:18,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-08 23:43:18,449 INFO L87 Difference]: Start difference. First operand 3732 states and 4219 transitions. Second operand has 4 states, 4 states have (on average 107.0) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:19,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:43:19,392 INFO L93 Difference]: Finished difference Result 11899 states and 13474 transitions. [2025-01-08 23:43:19,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-08 23:43:19,393 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 107.0) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 665 [2025-01-08 23:43:19,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:43:19,417 INFO L225 Difference]: With dead ends: 11899 [2025-01-08 23:43:19,417 INFO L226 Difference]: Without dead ends: 8169 [2025-01-08 23:43:19,424 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-01-08 23:43:19,425 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 223 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2025-01-08 23:43:19,425 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 82 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2025-01-08 23:43:19,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8169 states. [2025-01-08 23:43:19,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8169 to 7799. [2025-01-08 23:43:19,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7799 states, 7798 states have (on average 1.1193895870736086) internal successors, (8729), 7798 states have internal predecessors, (8729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:19,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7799 states to 7799 states and 8729 transitions. [2025-01-08 23:43:19,567 INFO L78 Accepts]: Start accepts. Automaton has 7799 states and 8729 transitions. Word has length 665 [2025-01-08 23:43:19,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:43:19,568 INFO L471 AbstractCegarLoop]: Abstraction has 7799 states and 8729 transitions. [2025-01-08 23:43:19,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.0) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:19,568 INFO L276 IsEmpty]: Start isEmpty. Operand 7799 states and 8729 transitions. [2025-01-08 23:43:19,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 734 [2025-01-08 23:43:19,590 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:43:19,590 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:43:19,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-08 23:43:19,591 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:43:19,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:43:19,591 INFO L85 PathProgramCache]: Analyzing trace with hash 804368088, now seen corresponding path program 1 times [2025-01-08 23:43:19,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:43:19,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010316947] [2025-01-08 23:43:19,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:43:19,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:43:19,678 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 733 statements into 1 equivalence classes. [2025-01-08 23:43:19,697 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 733 of 733 statements. [2025-01-08 23:43:19,697 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:43:19,697 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:43:19,874 INFO L134 CoverageAnalysis]: Checked inductivity of 1601 backedges. 952 proven. 0 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2025-01-08 23:43:19,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:43:19,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010316947] [2025-01-08 23:43:19,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010316947] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:43:19,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:43:19,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-08 23:43:19,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149829523] [2025-01-08 23:43:19,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:43:19,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:43:19,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:43:19,876 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:43:19,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:43:19,876 INFO L87 Difference]: Start difference. First operand 7799 states and 8729 transitions. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:20,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:43:20,533 INFO L93 Difference]: Finished difference Result 17436 states and 19554 transitions. [2025-01-08 23:43:20,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:43:20,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 733 [2025-01-08 23:43:20,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:43:20,545 INFO L225 Difference]: With dead ends: 17436 [2025-01-08 23:43:20,545 INFO L226 Difference]: Without dead ends: 8717 [2025-01-08 23:43:20,549 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:43:20,550 INFO L435 NwaCegarLoop]: 338 mSDtfsCounter, 196 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-08 23:43:20,550 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 363 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-08 23:43:20,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8717 states. [2025-01-08 23:43:20,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8717 to 8717. [2025-01-08 23:43:20,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8717 states, 8716 states have (on average 1.1006195502524094) internal successors, (9593), 8716 states have internal predecessors, (9593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:20,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8717 states to 8717 states and 9593 transitions. [2025-01-08 23:43:20,611 INFO L78 Accepts]: Start accepts. Automaton has 8717 states and 9593 transitions. Word has length 733 [2025-01-08 23:43:20,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:43:20,611 INFO L471 AbstractCegarLoop]: Abstraction has 8717 states and 9593 transitions. [2025-01-08 23:43:20,611 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:20,611 INFO L276 IsEmpty]: Start isEmpty. Operand 8717 states and 9593 transitions. [2025-01-08 23:43:20,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 834 [2025-01-08 23:43:20,622 INFO L210 NwaCegarLoop]: Found error trace [2025-01-08 23:43:20,623 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:43:20,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-01-08 23:43:20,623 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-08 23:43:20,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-08 23:43:20,623 INFO L85 PathProgramCache]: Analyzing trace with hash -519024937, now seen corresponding path program 1 times [2025-01-08 23:43:20,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-08 23:43:20,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933625555] [2025-01-08 23:43:20,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-08 23:43:20,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-08 23:43:20,670 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 833 statements into 1 equivalence classes. [2025-01-08 23:43:20,698 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 833 of 833 statements. [2025-01-08 23:43:20,698 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-08 23:43:20,698 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-08 23:43:20,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1979 backedges. 1433 proven. 0 refuted. 0 times theorem prover too weak. 546 trivial. 0 not checked. [2025-01-08 23:43:20,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-08 23:43:20,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933625555] [2025-01-08 23:43:20,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933625555] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-08 23:43:20,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-08 23:43:20,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-08 23:43:20,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482501949] [2025-01-08 23:43:20,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-08 23:43:20,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-08 23:43:20,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-08 23:43:20,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-08 23:43:20,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:43:20,916 INFO L87 Difference]: Start difference. First operand 8717 states and 9593 transitions. Second operand has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:21,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-08 23:43:21,451 INFO L93 Difference]: Finished difference Result 18165 states and 19959 transitions. [2025-01-08 23:43:21,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-08 23:43:21,452 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 833 [2025-01-08 23:43:21,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-08 23:43:21,452 INFO L225 Difference]: With dead ends: 18165 [2025-01-08 23:43:21,452 INFO L226 Difference]: Without dead ends: 0 [2025-01-08 23:43:21,461 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-08 23:43:21,462 INFO L435 NwaCegarLoop]: 303 mSDtfsCounter, 64 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-08 23:43:21,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 324 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 544 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-08 23:43:21,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-01-08 23:43:21,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-01-08 23:43:21,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:21,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-01-08 23:43:21,465 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 833 [2025-01-08 23:43:21,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-08 23:43:21,466 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-08 23:43:21,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-08 23:43:21,466 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-01-08 23:43:21,466 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-01-08 23:43:21,468 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-08 23:43:21,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-01-08 23:43:21,471 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-08 23:43:21,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-01-08 23:43:22,543 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-08 23:43:22,562 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.01 11:43:22 BoogieIcfgContainer [2025-01-08 23:43:22,565 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-08 23:43:22,566 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-08 23:43:22,566 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-08 23:43:22,566 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-08 23:43:22,567 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.01 11:43:06" (3/4) ... [2025-01-08 23:43:22,568 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-08 23:43:22,593 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-01-08 23:43:22,594 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-01-08 23:43:22,595 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-08 23:43:22,595 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-08 23:43:22,715 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-08 23:43:22,715 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-08 23:43:22,716 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-08 23:43:22,716 INFO L158 Benchmark]: Toolchain (without parser) took 18415.04ms. Allocated memory was 201.3MB in the beginning and 721.4MB in the end (delta: 520.1MB). Free memory was 155.8MB in the beginning and 347.6MB in the end (delta: -191.9MB). Peak memory consumption was 325.4MB. Max. memory is 16.1GB. [2025-01-08 23:43:22,717 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 209.7MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-08 23:43:22,717 INFO L158 Benchmark]: CACSL2BoogieTranslator took 493.32ms. Allocated memory is still 201.3MB. Free memory was 155.8MB in the beginning and 113.0MB in the end (delta: 42.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-01-08 23:43:22,717 INFO L158 Benchmark]: Boogie Procedure Inliner took 107.43ms. Allocated memory is still 201.3MB. Free memory was 113.0MB in the beginning and 95.9MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-08 23:43:22,717 INFO L158 Benchmark]: Boogie Preprocessor took 152.09ms. Allocated memory is still 201.3MB. Free memory was 95.9MB in the beginning and 71.5MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-08 23:43:22,718 INFO L158 Benchmark]: RCFGBuilder took 1205.89ms. Allocated memory is still 201.3MB. Free memory was 71.5MB in the beginning and 92.1MB in the end (delta: -20.7MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. [2025-01-08 23:43:22,718 INFO L158 Benchmark]: TraceAbstraction took 16301.33ms. Allocated memory was 201.3MB in the beginning and 721.4MB in the end (delta: 520.1MB). Free memory was 92.1MB in the beginning and 364.4MB in the end (delta: -272.3MB). Peak memory consumption was 263.6MB. Max. memory is 16.1GB. [2025-01-08 23:43:22,718 INFO L158 Benchmark]: Witness Printer took 149.62ms. Allocated memory is still 721.4MB. Free memory was 364.4MB in the beginning and 347.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-08 23:43:22,719 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 209.7MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 493.32ms. Allocated memory is still 201.3MB. Free memory was 155.8MB in the beginning and 113.0MB in the end (delta: 42.7MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 107.43ms. Allocated memory is still 201.3MB. Free memory was 113.0MB in the beginning and 95.9MB in the end (delta: 17.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 152.09ms. Allocated memory is still 201.3MB. Free memory was 95.9MB in the beginning and 71.5MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1205.89ms. Allocated memory is still 201.3MB. Free memory was 71.5MB in the beginning and 92.1MB in the end (delta: -20.7MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. * TraceAbstraction took 16301.33ms. Allocated memory was 201.3MB in the beginning and 721.4MB in the end (delta: 520.1MB). Free memory was 92.1MB in the beginning and 364.4MB in the end (delta: -272.3MB). Peak memory consumption was 263.6MB. Max. memory is 16.1GB. * Witness Printer took 149.62ms. Allocated memory is still 721.4MB. Free memory was 364.4MB in the beginning and 347.6MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 121]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 15.2s, OverallIterations: 14, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 11.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2490 SdHoareTripleChecker+Valid, 10.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2490 mSDsluCounter, 3170 SdHoareTripleChecker+Invalid, 8.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 372 mSDsCounter, 1706 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9192 IncrementalHoareTripleChecker+Invalid, 10898 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1706 mSolverCounterUnsat, 2798 mSDtfsCounter, 9192 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8717occurred in iteration=13, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 14 MinimizatonAttempts, 4660 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 4717 NumberOfCodeBlocks, 4717 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 4703 ConstructedInterpolants, 0 QuantifiedInterpolants, 8141 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 6731/6731 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: (((((((((((((((a25 <= 10) && (a23 <= 138)) && (a4 == 1)) && (0 <= ((long long) a23 + 42))) || ((((a4 == 0) && (a25 == 11)) && (a29 <= 599998)) && (a23 <= 312))) || (((a25 == 13) && (a29 <= 599998)) && (a4 == 1))) || ((((a25 == 13) && (a4 == 0)) && (((long long) a29 + 22) <= 0)) && (a23 <= 138))) || (((a25 == 11) && (a29 <= 599999)) && (a4 == 1))) || (((a25 == 12) && (a4 == 1)) && (a29 <= 130))) || ((((a25 == 13) && (((long long) a23 + 43) <= 0)) && (a4 == 0)) && (a29 <= 599998))) || (((a4 == 0) && (((long long) a29 + 22) <= 0)) && (a25 <= 10))) || (((a25 == 12) && (a4 == 0)) && (a29 <= 599998))) || (((a25 <= 10) && (a29 <= 599999)) && (a4 == 1))) || ((((a4 == 0) && (a25 <= 10)) && (a29 <= 599998)) && (a23 <= 138))) || ((((a25 == 12) && (307 <= a23)) && (a29 <= 599998)) && (a4 == 1))) RESULT: Ultimate proved your program to be correct! [2025-01-08 23:43:22,737 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE