./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label44.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label44.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4590079a5f8946ec9488ef76281079c2cb860e2f88ad1b21eefdd23ad59a57f9 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 16:06:01,103 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 16:06:01,153 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 16:06:01,159 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 16:06:01,159 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 16:06:01,181 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 16:06:01,183 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 16:06:01,183 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 16:06:01,184 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 16:06:01,186 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 16:06:01,187 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 16:06:01,187 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 16:06:01,187 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 16:06:01,187 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 16:06:01,188 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 16:06:01,189 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 16:06:01,189 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 16:06:01,189 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 16:06:01,189 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 16:06:01,190 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 16:06:01,190 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 16:06:01,190 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 16:06:01,190 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 16:06:01,190 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 16:06:01,191 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 16:06:01,191 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 16:06:01,191 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 16:06:01,191 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 16:06:01,191 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 16:06:01,191 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 16:06:01,192 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 16:06:01,192 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 16:06:01,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 16:06:01,192 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 16:06:01,192 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 16:06:01,192 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 16:06:01,193 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 16:06:01,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 16:06:01,193 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 16:06:01,193 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 16:06:01,195 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 16:06:01,195 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 16:06:01,195 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4590079a5f8946ec9488ef76281079c2cb860e2f88ad1b21eefdd23ad59a57f9 [2024-10-12 16:06:01,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 16:06:01,431 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 16:06:01,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 16:06:01,434 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 16:06:01,435 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 16:06:01,436 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label44.c [2024-10-12 16:06:02,543 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 16:06:02,882 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 16:06:02,882 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label44.c [2024-10-12 16:06:02,905 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/420a1a24e/86f5f489882941829cb2ae7b081bd1a0/FLAG67a86b54b [2024-10-12 16:06:03,118 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/420a1a24e/86f5f489882941829cb2ae7b081bd1a0 [2024-10-12 16:06:03,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 16:06:03,121 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 16:06:03,124 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 16:06:03,124 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 16:06:03,128 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 16:06:03,128 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 04:06:03" (1/1) ... [2024-10-12 16:06:03,130 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d5d4a59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:06:03, skipping insertion in model container [2024-10-12 16:06:03,130 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 04:06:03" (1/1) ... [2024-10-12 16:06:03,204 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 16:06:03,408 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label44.c[6250,6263] [2024-10-12 16:06:03,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 16:06:03,928 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 16:06:03,948 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label44.c[6250,6263] [2024-10-12 16:06:04,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 16:06:04,259 INFO L204 MainTranslator]: Completed translation [2024-10-12 16:06:04,260 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:06:04 WrapperNode [2024-10-12 16:06:04,260 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 16:06:04,261 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 16:06:04,261 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 16:06:04,261 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 16:06:04,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:06:04" (1/1) ... [2024-10-12 16:06:04,299 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:06:04" (1/1) ... [2024-10-12 16:06:04,519 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4761 [2024-10-12 16:06:04,520 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 16:06:04,520 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 16:06:04,520 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 16:06:04,521 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 16:06:04,528 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:06:04" (1/1) ... [2024-10-12 16:06:04,529 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:06:04" (1/1) ... [2024-10-12 16:06:04,567 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:06:04" (1/1) ... [2024-10-12 16:06:04,683 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-12 16:06:04,684 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:06:04" (1/1) ... [2024-10-12 16:06:04,684 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:06:04" (1/1) ... [2024-10-12 16:06:04,793 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:06:04" (1/1) ... [2024-10-12 16:06:04,844 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:06:04" (1/1) ... [2024-10-12 16:06:04,880 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:06:04" (1/1) ... [2024-10-12 16:06:04,894 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:06:04" (1/1) ... [2024-10-12 16:06:04,967 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 16:06:04,969 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 16:06:04,969 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 16:06:04,969 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 16:06:04,970 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:06:04" (1/1) ... [2024-10-12 16:06:04,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 16:06:04,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:06:05,024 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 16:06:05,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 16:06:05,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 16:06:05,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 16:06:05,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 16:06:05,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 16:06:05,176 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 16:06:05,178 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 16:06:08,294 INFO L? ?]: Removed 702 outVars from TransFormulas that were not future-live. [2024-10-12 16:06:08,295 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 16:06:08,348 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 16:06:08,349 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 16:06:08,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 04:06:08 BoogieIcfgContainer [2024-10-12 16:06:08,349 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 16:06:08,351 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 16:06:08,351 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 16:06:08,353 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 16:06:08,353 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 04:06:03" (1/3) ... [2024-10-12 16:06:08,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dc18fdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 04:06:08, skipping insertion in model container [2024-10-12 16:06:08,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:06:04" (2/3) ... [2024-10-12 16:06:08,354 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dc18fdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 04:06:08, skipping insertion in model container [2024-10-12 16:06:08,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 04:06:08" (3/3) ... [2024-10-12 16:06:08,356 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label44.c [2024-10-12 16:06:08,368 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 16:06:08,368 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 16:06:08,437 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 16:06:08,442 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;@2d5d6abe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 16:06:08,443 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 16:06:08,448 INFO L276 IsEmpty]: Start isEmpty. Operand has 756 states, 754 states have (on average 1.993368700265252) internal successors, (1503), 755 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:08,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-12 16:06:08,458 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:06:08,459 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:06:08,460 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:06:08,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:06:08,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1252887199, now seen corresponding path program 1 times [2024-10-12 16:06:08,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:06:08,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937857127] [2024-10-12 16:06:08,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:06:08,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:06:08,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:06:08,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 16:06:08,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:06:08,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937857127] [2024-10-12 16:06:08,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937857127] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:06:08,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:06:08,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 16:06:08,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426182484] [2024-10-12 16:06:08,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:06:08,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 16:06:08,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:06:08,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 16:06:08,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 16:06:08,657 INFO L87 Difference]: Start difference. First operand has 756 states, 754 states have (on average 1.993368700265252) internal successors, (1503), 755 states have internal predecessors, (1503), 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 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:08,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:06:08,731 INFO L93 Difference]: Finished difference Result 1511 states and 3005 transitions. [2024-10-12 16:06:08,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 16:06:08,738 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 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 49 [2024-10-12 16:06:08,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:06:08,754 INFO L225 Difference]: With dead ends: 1511 [2024-10-12 16:06:08,754 INFO L226 Difference]: Without dead ends: 754 [2024-10-12 16:06:08,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 16:06:08,763 INFO L432 NwaCegarLoop]: 1438 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 16:06:08,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1438 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 16:06:08,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2024-10-12 16:06:08,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2024-10-12 16:06:08,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 753 states have (on average 1.9096945551128819) internal successors, (1438), 753 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:08,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1438 transitions. [2024-10-12 16:06:08,822 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1438 transitions. Word has length 49 [2024-10-12 16:06:08,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:06:08,823 INFO L471 AbstractCegarLoop]: Abstraction has 754 states and 1438 transitions. [2024-10-12 16:06:08,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:08,823 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1438 transitions. [2024-10-12 16:06:08,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-12 16:06:08,824 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:06:08,824 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:06:08,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 16:06:08,825 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:06:08,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:06:08,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1096341895, now seen corresponding path program 1 times [2024-10-12 16:06:08,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:06:08,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786212829] [2024-10-12 16:06:08,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:06:08,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:06:08,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:06:08,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 16:06:08,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:06:08,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786212829] [2024-10-12 16:06:08,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786212829] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:06:08,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:06:08,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 16:06:08,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497952750] [2024-10-12 16:06:08,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:06:08,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:06:08,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:06:08,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:06:08,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:06:08,988 INFO L87 Difference]: Start difference. First operand 754 states and 1438 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:11,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:06:11,482 INFO L93 Difference]: Finished difference Result 2258 states and 4311 transitions. [2024-10-12 16:06:11,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:06:11,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 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 49 [2024-10-12 16:06:11,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:06:11,488 INFO L225 Difference]: With dead ends: 2258 [2024-10-12 16:06:11,488 INFO L226 Difference]: Without dead ends: 1505 [2024-10-12 16:06:11,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:06:11,490 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 768 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 591 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 2866 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 591 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-12 16:06:11,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 426 Invalid, 2866 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [591 Valid, 2275 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-12 16:06:11,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2024-10-12 16:06:11,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1505. [2024-10-12 16:06:11,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1504 states have (on average 1.6389627659574468) internal successors, (2465), 1504 states have internal predecessors, (2465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:11,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2465 transitions. [2024-10-12 16:06:11,531 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2465 transitions. Word has length 49 [2024-10-12 16:06:11,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:06:11,532 INFO L471 AbstractCegarLoop]: Abstraction has 1505 states and 2465 transitions. [2024-10-12 16:06:11,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:11,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2465 transitions. [2024-10-12 16:06:11,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-10-12 16:06:11,535 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:06:11,535 INFO L215 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, 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] [2024-10-12 16:06:11,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 16:06:11,536 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:06:11,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:06:11,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1802998582, now seen corresponding path program 1 times [2024-10-12 16:06:11,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:06:11,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627846701] [2024-10-12 16:06:11,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:06:11,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:06:11,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:06:11,831 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 16:06:11,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:06:11,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627846701] [2024-10-12 16:06:11,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627846701] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:06:11,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:06:11,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:06:11,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705687082] [2024-10-12 16:06:11,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:06:11,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 16:06:11,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:06:11,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 16:06:11,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 16:06:11,837 INFO L87 Difference]: Start difference. First operand 1505 states and 2465 transitions. Second operand has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:14,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:06:14,773 INFO L93 Difference]: Finished difference Result 4548 states and 7429 transitions. [2024-10-12 16:06:14,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 16:06:14,773 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 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 120 [2024-10-12 16:06:14,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:06:14,781 INFO L225 Difference]: With dead ends: 4548 [2024-10-12 16:06:14,781 INFO L226 Difference]: Without dead ends: 3007 [2024-10-12 16:06:14,783 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 16:06:14,783 INFO L432 NwaCegarLoop]: 636 mSDtfsCounter, 703 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 3075 mSolverCounterSat, 729 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 649 SdHoareTripleChecker+Invalid, 3804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 729 IncrementalHoareTripleChecker+Valid, 3075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-12 16:06:14,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 649 Invalid, 3804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [729 Valid, 3075 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-12 16:06:14,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3007 states. [2024-10-12 16:06:14,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3007 to 3007. [2024-10-12 16:06:14,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3007 states, 3006 states have (on average 1.3416500332667998) internal successors, (4033), 3006 states have internal predecessors, (4033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:14,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3007 states to 3007 states and 4033 transitions. [2024-10-12 16:06:14,822 INFO L78 Accepts]: Start accepts. Automaton has 3007 states and 4033 transitions. Word has length 120 [2024-10-12 16:06:14,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:06:14,823 INFO L471 AbstractCegarLoop]: Abstraction has 3007 states and 4033 transitions. [2024-10-12 16:06:14,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:14,823 INFO L276 IsEmpty]: Start isEmpty. Operand 3007 states and 4033 transitions. [2024-10-12 16:06:14,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-10-12 16:06:14,828 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:06:14,828 INFO L215 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, 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] [2024-10-12 16:06:14,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 16:06:14,828 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:06:14,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:06:14,829 INFO L85 PathProgramCache]: Analyzing trace with hash -782506773, now seen corresponding path program 1 times [2024-10-12 16:06:14,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:06:14,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904054907] [2024-10-12 16:06:14,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:06:14,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:06:14,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:06:15,081 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 16:06:15,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:06:15,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904054907] [2024-10-12 16:06:15,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904054907] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:06:15,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:06:15,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:06:15,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225037055] [2024-10-12 16:06:15,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:06:15,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 16:06:15,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:06:15,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 16:06:15,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 16:06:15,084 INFO L87 Difference]: Start difference. First operand 3007 states and 4033 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:18,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:06:18,324 INFO L93 Difference]: Finished difference Result 9768 states and 12891 transitions. [2024-10-12 16:06:18,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 16:06:18,325 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 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 158 [2024-10-12 16:06:18,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:06:18,340 INFO L225 Difference]: With dead ends: 9768 [2024-10-12 16:06:18,340 INFO L226 Difference]: Without dead ends: 6762 [2024-10-12 16:06:18,344 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 16:06:18,345 INFO L432 NwaCegarLoop]: 435 mSDtfsCounter, 2092 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 4274 mSolverCounterSat, 567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2092 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 4841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 4274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-10-12 16:06:18,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2092 Valid, 450 Invalid, 4841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [567 Valid, 4274 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-10-12 16:06:18,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6762 states. [2024-10-12 16:06:18,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6762 to 6762. [2024-10-12 16:06:18,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6762 states, 6761 states have (on average 1.2873835231474633) internal successors, (8704), 6761 states have internal predecessors, (8704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:18,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6762 states to 6762 states and 8704 transitions. [2024-10-12 16:06:18,428 INFO L78 Accepts]: Start accepts. Automaton has 6762 states and 8704 transitions. Word has length 158 [2024-10-12 16:06:18,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:06:18,429 INFO L471 AbstractCegarLoop]: Abstraction has 6762 states and 8704 transitions. [2024-10-12 16:06:18,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 3 states have internal predecessors, (158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:18,430 INFO L276 IsEmpty]: Start isEmpty. Operand 6762 states and 8704 transitions. [2024-10-12 16:06:18,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-10-12 16:06:18,435 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:06:18,435 INFO L215 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:06:18,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 16:06:18,435 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:06:18,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:06:18,437 INFO L85 PathProgramCache]: Analyzing trace with hash -576013208, now seen corresponding path program 1 times [2024-10-12 16:06:18,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:06:18,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682837794] [2024-10-12 16:06:18,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:06:18,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:06:18,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:06:18,740 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-12 16:06:18,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:06:18,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682837794] [2024-10-12 16:06:18,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682837794] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:06:18,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:06:18,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:06:18,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550291962] [2024-10-12 16:06:18,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:06:18,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 16:06:18,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:06:18,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 16:06:18,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 16:06:18,745 INFO L87 Difference]: Start difference. First operand 6762 states and 8704 transitions. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:21,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:06:21,355 INFO L93 Difference]: Finished difference Result 15815 states and 21392 transitions. [2024-10-12 16:06:21,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 16:06:21,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 3 states have internal predecessors, (192), 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 261 [2024-10-12 16:06:21,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:06:21,376 INFO L225 Difference]: With dead ends: 15815 [2024-10-12 16:06:21,376 INFO L226 Difference]: Without dead ends: 9768 [2024-10-12 16:06:21,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 16:06:21,382 INFO L432 NwaCegarLoop]: 475 mSDtfsCounter, 850 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 3466 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 4019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 3466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-10-12 16:06:21,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 489 Invalid, 4019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 3466 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-10-12 16:06:21,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9768 states. [2024-10-12 16:06:21,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9768 to 9766. [2024-10-12 16:06:21,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9766 states, 9765 states have (on average 1.273015873015873) internal successors, (12431), 9765 states have internal predecessors, (12431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:21,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9766 states to 9766 states and 12431 transitions. [2024-10-12 16:06:21,483 INFO L78 Accepts]: Start accepts. Automaton has 9766 states and 12431 transitions. Word has length 261 [2024-10-12 16:06:21,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:06:21,484 INFO L471 AbstractCegarLoop]: Abstraction has 9766 states and 12431 transitions. [2024-10-12 16:06:21,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:21,484 INFO L276 IsEmpty]: Start isEmpty. Operand 9766 states and 12431 transitions. [2024-10-12 16:06:21,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2024-10-12 16:06:21,487 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:06:21,487 INFO L215 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:06:21,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 16:06:21,487 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:06:21,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:06:21,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1963518705, now seen corresponding path program 1 times [2024-10-12 16:06:21,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:06:21,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509865037] [2024-10-12 16:06:21,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:06:21,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:06:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:06:21,970 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 41 proven. 138 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 16:06:21,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:06:21,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509865037] [2024-10-12 16:06:21,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509865037] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:06:21,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715123623] [2024-10-12 16:06:21,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:06:21,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:06:21,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:06:21,973 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 16:06:21,974 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 16:06:22,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:06:22,062 INFO L255 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 16:06:22,068 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:06:22,139 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-12 16:06:22,141 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:06:22,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715123623] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:06:22,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:06:22,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-10-12 16:06:22,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871561267] [2024-10-12 16:06:22,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:06:22,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:06:22,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:06:22,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:06:22,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-12 16:06:22,144 INFO L87 Difference]: Start difference. First operand 9766 states and 12431 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:24,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:06:24,258 INFO L93 Difference]: Finished difference Result 26290 states and 34150 transitions. [2024-10-12 16:06:24,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:06:24,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 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 279 [2024-10-12 16:06:24,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:06:24,293 INFO L225 Difference]: With dead ends: 26290 [2024-10-12 16:06:24,293 INFO L226 Difference]: Without dead ends: 17276 [2024-10-12 16:06:24,303 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-10-12 16:06:24,304 INFO L432 NwaCegarLoop]: 1085 mSDtfsCounter, 741 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2356 mSolverCounterSat, 547 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 2903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 547 IncrementalHoareTripleChecker+Valid, 2356 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-12 16:06:24,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 1092 Invalid, 2903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [547 Valid, 2356 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-12 16:06:24,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17276 states. [2024-10-12 16:06:24,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17276 to 17276. [2024-10-12 16:06:24,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17276 states, 17275 states have (on average 1.2610130246020261) internal successors, (21784), 17275 states have internal predecessors, (21784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:24,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17276 states to 17276 states and 21784 transitions. [2024-10-12 16:06:24,483 INFO L78 Accepts]: Start accepts. Automaton has 17276 states and 21784 transitions. Word has length 279 [2024-10-12 16:06:24,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:06:24,483 INFO L471 AbstractCegarLoop]: Abstraction has 17276 states and 21784 transitions. [2024-10-12 16:06:24,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:24,484 INFO L276 IsEmpty]: Start isEmpty. Operand 17276 states and 21784 transitions. [2024-10-12 16:06:24,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-10-12 16:06:24,487 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:06:24,487 INFO L215 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:06:24,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-12 16:06:24,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-12 16:06:24,688 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:06:24,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:06:24,688 INFO L85 PathProgramCache]: Analyzing trace with hash 900132401, now seen corresponding path program 1 times [2024-10-12 16:06:24,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:06:24,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322379699] [2024-10-12 16:06:24,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:06:24,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:06:24,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:06:24,847 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-10-12 16:06:24,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:06:24,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322379699] [2024-10-12 16:06:24,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322379699] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:06:24,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:06:24,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 16:06:24,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299202235] [2024-10-12 16:06:24,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:06:24,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:06:24,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:06:24,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:06:24,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:06:24,850 INFO L87 Difference]: Start difference. First operand 17276 states and 21784 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 2 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:27,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:06:27,028 INFO L93 Difference]: Finished difference Result 33800 states and 42811 transitions. [2024-10-12 16:06:27,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:06:27,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 2 states have internal predecessors, (192), 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 283 [2024-10-12 16:06:27,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:06:27,052 INFO L225 Difference]: With dead ends: 33800 [2024-10-12 16:06:27,053 INFO L226 Difference]: Without dead ends: 17276 [2024-10-12 16:06:27,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:06:27,067 INFO L432 NwaCegarLoop]: 423 mSDtfsCounter, 694 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1970 mSolverCounterSat, 703 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 694 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 2673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 703 IncrementalHoareTripleChecker+Valid, 1970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-12 16:06:27,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [694 Valid, 429 Invalid, 2673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [703 Valid, 1970 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-12 16:06:27,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17276 states. [2024-10-12 16:06:27,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17276 to 15774. [2024-10-12 16:06:27,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15774 states, 15773 states have (on average 1.1705446015342673) internal successors, (18463), 15773 states have internal predecessors, (18463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:27,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15774 states to 15774 states and 18463 transitions. [2024-10-12 16:06:27,212 INFO L78 Accepts]: Start accepts. Automaton has 15774 states and 18463 transitions. Word has length 283 [2024-10-12 16:06:27,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:06:27,212 INFO L471 AbstractCegarLoop]: Abstraction has 15774 states and 18463 transitions. [2024-10-12 16:06:27,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 2 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:27,213 INFO L276 IsEmpty]: Start isEmpty. Operand 15774 states and 18463 transitions. [2024-10-12 16:06:27,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2024-10-12 16:06:27,216 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:06:27,216 INFO L215 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, 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, 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] [2024-10-12 16:06:27,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 16:06:27,217 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:06:27,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:06:27,217 INFO L85 PathProgramCache]: Analyzing trace with hash 315997464, now seen corresponding path program 1 times [2024-10-12 16:06:27,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:06:27,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043025303] [2024-10-12 16:06:27,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:06:27,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:06:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:06:27,373 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-10-12 16:06:27,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:06:27,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043025303] [2024-10-12 16:06:27,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043025303] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:06:27,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:06:27,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:06:27,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760477644] [2024-10-12 16:06:27,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:06:27,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:06:27,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:06:27,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:06:27,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:06:27,375 INFO L87 Difference]: Start difference. First operand 15774 states and 18463 transitions. Second operand has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:29,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:06:29,380 INFO L93 Difference]: Finished difference Result 38306 states and 45532 transitions. [2024-10-12 16:06:29,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:06:29,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 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 362 [2024-10-12 16:06:29,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:06:29,443 INFO L225 Difference]: With dead ends: 38306 [2024-10-12 16:06:29,443 INFO L226 Difference]: Without dead ends: 23284 [2024-10-12 16:06:29,460 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:06:29,461 INFO L432 NwaCegarLoop]: 227 mSDtfsCounter, 764 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2068 mSolverCounterSat, 719 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 2787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 719 IncrementalHoareTripleChecker+Valid, 2068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-12 16:06:29,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 233 Invalid, 2787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [719 Valid, 2068 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-12 16:06:29,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23284 states. [2024-10-12 16:06:29,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23284 to 22533. [2024-10-12 16:06:29,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22533 states, 22532 states have (on average 1.1530711876442392) internal successors, (25981), 22532 states have internal predecessors, (25981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:29,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22533 states to 22533 states and 25981 transitions. [2024-10-12 16:06:29,650 INFO L78 Accepts]: Start accepts. Automaton has 22533 states and 25981 transitions. Word has length 362 [2024-10-12 16:06:29,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:06:29,651 INFO L471 AbstractCegarLoop]: Abstraction has 22533 states and 25981 transitions. [2024-10-12 16:06:29,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.0) internal successors, (285), 3 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:29,651 INFO L276 IsEmpty]: Start isEmpty. Operand 22533 states and 25981 transitions. [2024-10-12 16:06:29,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2024-10-12 16:06:29,655 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:06:29,656 INFO L215 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, 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, 2, 2, 2, 2, 2, 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] [2024-10-12 16:06:29,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 16:06:29,657 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:06:29,657 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:06:29,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1334372574, now seen corresponding path program 1 times [2024-10-12 16:06:29,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:06:29,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261699584] [2024-10-12 16:06:29,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:06:29,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:06:29,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:06:29,851 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-10-12 16:06:29,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:06:29,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261699584] [2024-10-12 16:06:29,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261699584] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:06:29,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:06:29,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:06:29,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184962487] [2024-10-12 16:06:29,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:06:29,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:06:29,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:06:29,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:06:29,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:06:29,856 INFO L87 Difference]: Start difference. First operand 22533 states and 25981 transitions. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:31,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:06:31,653 INFO L93 Difference]: Finished difference Result 49571 states and 57146 transitions. [2024-10-12 16:06:31,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:06:31,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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 377 [2024-10-12 16:06:31,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:06:31,683 INFO L225 Difference]: With dead ends: 49571 [2024-10-12 16:06:31,683 INFO L226 Difference]: Without dead ends: 25537 [2024-10-12 16:06:31,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:06:31,700 INFO L432 NwaCegarLoop]: 1335 mSDtfsCounter, 724 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1971 mSolverCounterSat, 384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 2355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 1971 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-12 16:06:31,700 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 1342 Invalid, 2355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [384 Valid, 1971 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-12 16:06:31,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25537 states. [2024-10-12 16:06:31,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25537 to 24786. [2024-10-12 16:06:31,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24786 states, 24785 states have (on average 1.138148073431511) internal successors, (28209), 24785 states have internal predecessors, (28209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:31,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24786 states to 24786 states and 28209 transitions. [2024-10-12 16:06:31,900 INFO L78 Accepts]: Start accepts. Automaton has 24786 states and 28209 transitions. Word has length 377 [2024-10-12 16:06:31,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:06:31,900 INFO L471 AbstractCegarLoop]: Abstraction has 24786 states and 28209 transitions. [2024-10-12 16:06:31,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:31,901 INFO L276 IsEmpty]: Start isEmpty. Operand 24786 states and 28209 transitions. [2024-10-12 16:06:31,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2024-10-12 16:06:31,909 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:06:31,909 INFO L215 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-12 16:06:31,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 16:06:31,909 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:06:31,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:06:31,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1097691755, now seen corresponding path program 1 times [2024-10-12 16:06:31,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:06:31,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802059753] [2024-10-12 16:06:31,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:06:31,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:06:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:06:32,275 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 392 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-10-12 16:06:32,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:06:32,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802059753] [2024-10-12 16:06:32,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802059753] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:06:32,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:06:32,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:06:32,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858237882] [2024-10-12 16:06:32,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:06:32,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:06:32,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:06:32,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:06:32,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:06:32,277 INFO L87 Difference]: Start difference. First operand 24786 states and 28209 transitions. Second operand has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:34,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:06:34,483 INFO L93 Difference]: Finished difference Result 67595 states and 77602 transitions. [2024-10-12 16:06:34,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:06:34,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 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 463 [2024-10-12 16:06:34,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:06:34,526 INFO L225 Difference]: With dead ends: 67595 [2024-10-12 16:06:34,526 INFO L226 Difference]: Without dead ends: 43561 [2024-10-12 16:06:34,549 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:06:34,549 INFO L432 NwaCegarLoop]: 513 mSDtfsCounter, 710 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2286 mSolverCounterSat, 564 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 2850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 564 IncrementalHoareTripleChecker+Valid, 2286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-12 16:06:34,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [710 Valid, 520 Invalid, 2850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [564 Valid, 2286 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-12 16:06:34,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43561 states. [2024-10-12 16:06:34,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43561 to 42059. [2024-10-12 16:06:34,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42059 states, 42058 states have (on average 1.1252555994103381) internal successors, (47326), 42058 states have internal predecessors, (47326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:35,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42059 states to 42059 states and 47326 transitions. [2024-10-12 16:06:35,028 INFO L78 Accepts]: Start accepts. Automaton has 42059 states and 47326 transitions. Word has length 463 [2024-10-12 16:06:35,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:06:35,028 INFO L471 AbstractCegarLoop]: Abstraction has 42059 states and 47326 transitions. [2024-10-12 16:06:35,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:35,029 INFO L276 IsEmpty]: Start isEmpty. Operand 42059 states and 47326 transitions. [2024-10-12 16:06:35,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2024-10-12 16:06:35,038 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:06:35,039 INFO L215 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-12 16:06:35,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 16:06:35,039 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:06:35,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:06:35,039 INFO L85 PathProgramCache]: Analyzing trace with hash 402066997, now seen corresponding path program 1 times [2024-10-12 16:06:35,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:06:35,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502345778] [2024-10-12 16:06:35,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:06:35,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:06:35,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:06:35,466 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 396 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-10-12 16:06:35,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:06:35,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502345778] [2024-10-12 16:06:35,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502345778] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:06:35,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:06:35,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:06:35,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584000066] [2024-10-12 16:06:35,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:06:35,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:06:35,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:06:35,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:06:35,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:06:35,469 INFO L87 Difference]: Start difference. First operand 42059 states and 47326 transitions. Second operand has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:37,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:06:37,723 INFO L93 Difference]: Finished difference Result 100641 states and 114228 transitions. [2024-10-12 16:06:37,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:06:37,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 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 467 [2024-10-12 16:06:37,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:06:37,782 INFO L225 Difference]: With dead ends: 100641 [2024-10-12 16:06:37,782 INFO L226 Difference]: Without dead ends: 59334 [2024-10-12 16:06:37,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:06:37,803 INFO L432 NwaCegarLoop]: 1258 mSDtfsCounter, 698 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 466 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 698 SdHoareTripleChecker+Valid, 1265 SdHoareTripleChecker+Invalid, 2775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 466 IncrementalHoareTripleChecker+Valid, 2309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-12 16:06:37,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [698 Valid, 1265 Invalid, 2775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [466 Valid, 2309 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-12 16:06:37,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59334 states. [2024-10-12 16:06:38,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59334 to 55577. [2024-10-12 16:06:38,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55577 states, 55576 states have (on average 1.1114149992802649) internal successors, (61768), 55576 states have internal predecessors, (61768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:38,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55577 states to 55577 states and 61768 transitions. [2024-10-12 16:06:38,264 INFO L78 Accepts]: Start accepts. Automaton has 55577 states and 61768 transitions. Word has length 467 [2024-10-12 16:06:38,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:06:38,264 INFO L471 AbstractCegarLoop]: Abstraction has 55577 states and 61768 transitions. [2024-10-12 16:06:38,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:38,264 INFO L276 IsEmpty]: Start isEmpty. Operand 55577 states and 61768 transitions. [2024-10-12 16:06:38,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2024-10-12 16:06:38,271 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:06:38,271 INFO L215 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-12 16:06:38,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 16:06:38,272 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:06:38,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:06:38,272 INFO L85 PathProgramCache]: Analyzing trace with hash -725188935, now seen corresponding path program 1 times [2024-10-12 16:06:38,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:06:38,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390279106] [2024-10-12 16:06:38,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:06:38,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:06:38,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:06:38,725 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 382 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-10-12 16:06:38,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:06:38,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390279106] [2024-10-12 16:06:38,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390279106] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:06:38,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:06:38,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:06:38,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117920000] [2024-10-12 16:06:38,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:06:38,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:06:38,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:06:38,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:06:38,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:06:38,727 INFO L87 Difference]: Start difference. First operand 55577 states and 61768 transitions. Second operand has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:41,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:06:41,044 INFO L93 Difference]: Finished difference Result 141944 states and 157368 transitions. [2024-10-12 16:06:41,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:06:41,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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 483 [2024-10-12 16:06:41,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:06:41,249 INFO L225 Difference]: With dead ends: 141944 [2024-10-12 16:06:41,249 INFO L226 Difference]: Without dead ends: 87119 [2024-10-12 16:06:41,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:06:41,274 INFO L432 NwaCegarLoop]: 1146 mSDtfsCounter, 569 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2514 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 1153 SdHoareTripleChecker+Invalid, 2850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 2514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-12 16:06:41,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 1153 Invalid, 2850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 2514 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-12 16:06:41,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87119 states. [2024-10-12 16:06:42,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87119 to 84866. [2024-10-12 16:06:42,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84866 states, 84865 states have (on average 1.1005361456430802) internal successors, (93397), 84865 states have internal predecessors, (93397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:42,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84866 states to 84866 states and 93397 transitions. [2024-10-12 16:06:42,430 INFO L78 Accepts]: Start accepts. Automaton has 84866 states and 93397 transitions. Word has length 483 [2024-10-12 16:06:42,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:06:42,431 INFO L471 AbstractCegarLoop]: Abstraction has 84866 states and 93397 transitions. [2024-10-12 16:06:42,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:42,432 INFO L276 IsEmpty]: Start isEmpty. Operand 84866 states and 93397 transitions. [2024-10-12 16:06:42,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2024-10-12 16:06:42,458 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:06:42,458 INFO L215 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:06:42,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 16:06:42,459 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:06:42,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:06:42,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1316863930, now seen corresponding path program 1 times [2024-10-12 16:06:42,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:06:42,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081261813] [2024-10-12 16:06:42,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:06:42,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:06:42,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:06:42,811 INFO L134 CoverageAnalysis]: Checked inductivity of 554 backedges. 419 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-10-12 16:06:42,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:06:42,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081261813] [2024-10-12 16:06:42,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081261813] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:06:42,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:06:42,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:06:42,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453288713] [2024-10-12 16:06:42,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:06:42,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:06:42,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:06:42,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:06:42,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:06:42,813 INFO L87 Difference]: Start difference. First operand 84866 states and 93397 transitions. Second operand has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:45,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:06:45,361 INFO L93 Difference]: Finished difference Result 208032 states and 230733 transitions. [2024-10-12 16:06:45,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:06:45,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 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 520 [2024-10-12 16:06:45,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:06:45,509 INFO L225 Difference]: With dead ends: 208032 [2024-10-12 16:06:45,510 INFO L226 Difference]: Without dead ends: 123918 [2024-10-12 16:06:45,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:06:45,542 INFO L432 NwaCegarLoop]: 1219 mSDtfsCounter, 617 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2112 mSolverCounterSat, 642 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 1225 SdHoareTripleChecker+Invalid, 2754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 642 IncrementalHoareTripleChecker+Valid, 2112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-12 16:06:45,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 1225 Invalid, 2754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [642 Valid, 2112 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-12 16:06:45,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123918 states. [2024-10-12 16:06:46,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123918 to 117159. [2024-10-12 16:06:46,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117159 states, 117158 states have (on average 1.0886495160381706) internal successors, (127544), 117158 states have internal predecessors, (127544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:46,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117159 states to 117159 states and 127544 transitions. [2024-10-12 16:06:46,977 INFO L78 Accepts]: Start accepts. Automaton has 117159 states and 127544 transitions. Word has length 520 [2024-10-12 16:06:46,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:06:46,977 INFO L471 AbstractCegarLoop]: Abstraction has 117159 states and 127544 transitions. [2024-10-12 16:06:46,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 128.66666666666666) internal successors, (386), 3 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:46,978 INFO L276 IsEmpty]: Start isEmpty. Operand 117159 states and 127544 transitions. [2024-10-12 16:06:47,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 571 [2024-10-12 16:06:47,002 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:06:47,002 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:06:47,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 16:06:47,002 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:06:47,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:06:47,003 INFO L85 PathProgramCache]: Analyzing trace with hash 738272688, now seen corresponding path program 1 times [2024-10-12 16:06:47,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:06:47,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938054795] [2024-10-12 16:06:47,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:06:47,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:06:47,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:06:47,333 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 642 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-10-12 16:06:47,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:06:47,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938054795] [2024-10-12 16:06:47,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938054795] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:06:47,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:06:47,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:06:47,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488920618] [2024-10-12 16:06:47,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:06:47,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:06:47,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:06:47,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:06:47,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:06:47,337 INFO L87 Difference]: Start difference. First operand 117159 states and 127544 transitions. Second operand has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:49,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:06:49,716 INFO L93 Difference]: Finished difference Result 233566 states and 254331 transitions. [2024-10-12 16:06:49,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:06:49,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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 570 [2024-10-12 16:06:49,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:06:49,838 INFO L225 Difference]: With dead ends: 233566 [2024-10-12 16:06:49,838 INFO L226 Difference]: Without dead ends: 117159 [2024-10-12 16:06:49,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:06:49,867 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 788 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2173 mSolverCounterSat, 415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 788 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 2588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 415 IncrementalHoareTripleChecker+Valid, 2173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-12 16:06:49,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [788 Valid, 219 Invalid, 2588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [415 Valid, 2173 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-12 16:06:49,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117159 states. [2024-10-12 16:06:50,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117159 to 114155. [2024-10-12 16:06:50,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114155 states, 114154 states have (on average 1.0758711915482593) internal successors, (122815), 114154 states have internal predecessors, (122815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:51,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114155 states to 114155 states and 122815 transitions. [2024-10-12 16:06:51,150 INFO L78 Accepts]: Start accepts. Automaton has 114155 states and 122815 transitions. Word has length 570 [2024-10-12 16:06:51,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:06:51,150 INFO L471 AbstractCegarLoop]: Abstraction has 114155 states and 122815 transitions. [2024-10-12 16:06:51,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:51,150 INFO L276 IsEmpty]: Start isEmpty. Operand 114155 states and 122815 transitions. [2024-10-12 16:06:51,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2024-10-12 16:06:51,168 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:06:51,169 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:06:51,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-12 16:06:51,169 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:06:51,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:06:51,170 INFO L85 PathProgramCache]: Analyzing trace with hash -784980045, now seen corresponding path program 1 times [2024-10-12 16:06:51,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:06:51,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620699412] [2024-10-12 16:06:51,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:06:51,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:06:51,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:06:51,729 INFO L134 CoverageAnalysis]: Checked inductivity of 828 backedges. 664 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-10-12 16:06:51,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:06:51,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620699412] [2024-10-12 16:06:51,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620699412] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:06:51,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:06:51,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:06:51,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526892875] [2024-10-12 16:06:51,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:06:51,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:06:51,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:06:51,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:06:51,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:06:51,732 INFO L87 Difference]: Start difference. First operand 114155 states and 122815 transitions. Second operand has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:54,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:06:54,083 INFO L93 Difference]: Finished difference Result 260602 states and 282213 transitions. [2024-10-12 16:06:54,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:06:54,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 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 592 [2024-10-12 16:06:54,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:06:54,228 INFO L225 Difference]: With dead ends: 260602 [2024-10-12 16:06:54,228 INFO L226 Difference]: Without dead ends: 147199 [2024-10-12 16:06:54,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:06:54,283 INFO L432 NwaCegarLoop]: 1246 mSDtfsCounter, 679 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2200 mSolverCounterSat, 311 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 679 SdHoareTripleChecker+Valid, 1253 SdHoareTripleChecker+Invalid, 2511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 311 IncrementalHoareTripleChecker+Valid, 2200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-12 16:06:54,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [679 Valid, 1253 Invalid, 2511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [311 Valid, 2200 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-12 16:06:54,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147199 states. [2024-10-12 16:06:55,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147199 to 146448. [2024-10-12 16:06:55,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146448 states, 146447 states have (on average 1.068577710707628) internal successors, (156490), 146447 states have internal predecessors, (156490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:56,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146448 states to 146448 states and 156490 transitions. [2024-10-12 16:06:56,078 INFO L78 Accepts]: Start accepts. Automaton has 146448 states and 156490 transitions. Word has length 592 [2024-10-12 16:06:56,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:06:56,079 INFO L471 AbstractCegarLoop]: Abstraction has 146448 states and 156490 transitions. [2024-10-12 16:06:56,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.33333333333334) internal successors, (430), 3 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:06:56,079 INFO L276 IsEmpty]: Start isEmpty. Operand 146448 states and 156490 transitions. [2024-10-12 16:06:56,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2024-10-12 16:06:56,102 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:06:56,102 INFO L215 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:06:56,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-12 16:06:56,103 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:06:56,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:06:56,103 INFO L85 PathProgramCache]: Analyzing trace with hash -464343562, now seen corresponding path program 1 times [2024-10-12 16:06:56,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:06:56,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495295392] [2024-10-12 16:06:56,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:06:56,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:06:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:06:57,016 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 350 trivial. 0 not checked. [2024-10-12 16:06:57,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:06:57,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495295392] [2024-10-12 16:06:57,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495295392] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:06:57,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:06:57,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:06:57,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044395610] [2024-10-12 16:06:57,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:06:57,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 16:06:57,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:06:57,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 16:06:57,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 16:06:57,019 INFO L87 Difference]: Start difference. First operand 146448 states and 156490 transitions. Second operand has 4 states, 4 states have (on average 89.25) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:07:01,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:07:01,242 INFO L93 Difference]: Finished difference Result 440844 states and 471847 transitions. [2024-10-12 16:07:01,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 16:07:01,242 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.25) internal successors, (357), 3 states have internal predecessors, (357), 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 627 [2024-10-12 16:07:01,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:07:01,557 INFO L225 Difference]: With dead ends: 440844 [2024-10-12 16:07:01,557 INFO L226 Difference]: Without dead ends: 295148 [2024-10-12 16:07:01,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 16:07:01,638 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 1717 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 4575 mSolverCounterSat, 602 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1717 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 5177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 602 IncrementalHoareTripleChecker+Valid, 4575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-10-12 16:07:01,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1717 Valid, 57 Invalid, 5177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [602 Valid, 4575 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-10-12 16:07:01,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295148 states. [2024-10-12 16:07:04,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295148 to 277873. [2024-10-12 16:07:04,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277873 states, 277872 states have (on average 1.0695356135198941) internal successors, (297194), 277872 states have internal predecessors, (297194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:07:05,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277873 states to 277873 states and 297194 transitions. [2024-10-12 16:07:05,589 INFO L78 Accepts]: Start accepts. Automaton has 277873 states and 297194 transitions. Word has length 627 [2024-10-12 16:07:05,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:07:05,590 INFO L471 AbstractCegarLoop]: Abstraction has 277873 states and 297194 transitions. [2024-10-12 16:07:05,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.25) internal successors, (357), 3 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:07:05,590 INFO L276 IsEmpty]: Start isEmpty. Operand 277873 states and 297194 transitions. [2024-10-12 16:07:05,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 650 [2024-10-12 16:07:05,605 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:07:05,605 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:07:05,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-12 16:07:05,605 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:07:05,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:07:05,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1790392438, now seen corresponding path program 1 times [2024-10-12 16:07:05,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:07:05,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979468903] [2024-10-12 16:07:05,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:07:05,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:07:05,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:07:06,410 INFO L134 CoverageAnalysis]: Checked inductivity of 781 backedges. 520 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2024-10-12 16:07:06,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:07:06,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979468903] [2024-10-12 16:07:06,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979468903] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:07:06,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:07:06,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 16:07:06,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722455530] [2024-10-12 16:07:06,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:07:06,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 16:07:06,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:07:06,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 16:07:06,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 16:07:06,412 INFO L87 Difference]: Start difference. First operand 277873 states and 297194 transitions. Second operand has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:07:11,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:07:11,880 INFO L93 Difference]: Finished difference Result 669148 states and 717734 transitions. [2024-10-12 16:07:11,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 16:07:11,880 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 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 649 [2024-10-12 16:07:11,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:07:12,387 INFO L225 Difference]: With dead ends: 669148 [2024-10-12 16:07:12,387 INFO L226 Difference]: Without dead ends: 392027 [2024-10-12 16:07:12,530 INFO L431 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 [2024-10-12 16:07:12,531 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 1308 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 4676 mSolverCounterSat, 1081 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1308 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 5757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1081 IncrementalHoareTripleChecker+Valid, 4676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-10-12 16:07:12,532 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1308 Valid, 186 Invalid, 5757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1081 Valid, 4676 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-10-12 16:07:12,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392027 states. [2024-10-12 16:07:16,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392027 to 361234. [2024-10-12 16:07:16,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361234 states, 361233 states have (on average 1.07358408561787) internal successors, (387814), 361233 states have internal predecessors, (387814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:07:17,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361234 states to 361234 states and 387814 transitions. [2024-10-12 16:07:17,358 INFO L78 Accepts]: Start accepts. Automaton has 361234 states and 387814 transitions. Word has length 649 [2024-10-12 16:07:17,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:07:17,358 INFO L471 AbstractCegarLoop]: Abstraction has 361234 states and 387814 transitions. [2024-10-12 16:07:17,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.0) internal successors, (464), 4 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:07:17,359 INFO L276 IsEmpty]: Start isEmpty. Operand 361234 states and 387814 transitions. [2024-10-12 16:07:17,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 703 [2024-10-12 16:07:17,382 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:07:17,382 INFO L215 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:07:17,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-12 16:07:17,382 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:07:17,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:07:17,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1186809442, now seen corresponding path program 1 times [2024-10-12 16:07:17,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:07:17,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559790021] [2024-10-12 16:07:17,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:07:17,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:07:17,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:07:18,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1269 backedges. 1109 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2024-10-12 16:07:18,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:07:18,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559790021] [2024-10-12 16:07:18,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559790021] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:07:18,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:07:18,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 16:07:18,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939412305] [2024-10-12 16:07:18,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:07:18,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 16:07:18,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:07:18,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 16:07:18,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 16:07:18,377 INFO L87 Difference]: Start difference. First operand 361234 states and 387814 transitions. Second operand has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:07:22,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:07:22,940 INFO L93 Difference]: Finished difference Result 777290 states and 835232 transitions. [2024-10-12 16:07:22,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 16:07:22,940 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 136.0) internal successors, (544), 4 states have internal predecessors, (544), 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 702 [2024-10-12 16:07:22,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:07:23,485 INFO L225 Difference]: With dead ends: 777290 [2024-10-12 16:07:23,485 INFO L226 Difference]: Without dead ends: 416808 [2024-10-12 16:07:23,663 INFO L431 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 [2024-10-12 16:07:23,663 INFO L432 NwaCegarLoop]: 1271 mSDtfsCounter, 1324 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 3899 mSolverCounterSat, 746 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 1284 SdHoareTripleChecker+Invalid, 4645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 746 IncrementalHoareTripleChecker+Valid, 3899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-10-12 16:07:23,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1324 Valid, 1284 Invalid, 4645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [746 Valid, 3899 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-10-12 16:07:23,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416808 states.