./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem12_label17.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/eca-rers2012/Problem12_label17.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 d5ce10b415c8706a9c163992802d3ffc66c067ac6ef9711912e3377baf22b40a --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-11 16:52:48,535 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-11 16:52:48,606 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-11 16:52:48,613 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-11 16:52:48,615 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-11 16:52:48,637 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-11 16:52:48,638 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-11 16:52:48,639 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-11 16:52:48,639 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-11 16:52:48,640 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-11 16:52:48,640 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-11 16:52:48,640 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-11 16:52:48,641 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-11 16:52:48,641 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-11 16:52:48,642 INFO L153 SettingsManager]: * Use SBE=true [2024-11-11 16:52:48,642 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-11 16:52:48,643 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-11 16:52:48,643 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-11 16:52:48,643 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-11 16:52:48,647 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-11 16:52:48,647 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-11 16:52:48,648 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-11 16:52:48,648 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-11 16:52:48,648 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-11 16:52:48,649 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-11 16:52:48,649 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-11 16:52:48,649 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-11 16:52:48,649 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-11 16:52:48,650 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-11 16:52:48,650 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-11 16:52:48,650 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-11 16:52:48,650 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-11 16:52:48,650 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 16:52:48,651 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-11 16:52:48,651 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-11 16:52:48,653 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-11 16:52:48,654 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-11 16:52:48,654 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-11 16:52:48,654 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-11 16:52:48,655 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-11 16:52:48,655 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-11 16:52:48,656 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-11 16:52:48,656 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5ce10b415c8706a9c163992802d3ffc66c067ac6ef9711912e3377baf22b40a [2024-11-11 16:52:48,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-11 16:52:48,985 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-11 16:52:48,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-11 16:52:48,991 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-11 16:52:48,991 INFO L274 PluginConnector]: CDTParser initialized [2024-11-11 16:52:48,992 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem12_label17.c [2024-11-11 16:52:50,398 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-11 16:52:50,875 INFO L384 CDTParser]: Found 1 translation units. [2024-11-11 16:52:50,877 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label17.c [2024-11-11 16:52:50,912 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cb5d9060/d866f5677eb44fe2bf23d0d1334bd35b/FLAGd00923ba7 [2024-11-11 16:52:50,930 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cb5d9060/d866f5677eb44fe2bf23d0d1334bd35b [2024-11-11 16:52:50,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-11 16:52:50,935 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-11 16:52:50,937 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-11 16:52:50,938 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-11 16:52:50,944 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-11 16:52:50,945 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 04:52:50" (1/1) ... [2024-11-11 16:52:50,947 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d018086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:52:50, skipping insertion in model container [2024-11-11 16:52:50,947 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 04:52:50" (1/1) ... [2024-11-11 16:52:51,057 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-11 16:52:51,304 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label17.c[5134,5147] [2024-11-11 16:52:52,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 16:52:52,104 INFO L200 MainTranslator]: Completed pre-run [2024-11-11 16:52:52,130 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label17.c[5134,5147] [2024-11-11 16:52:52,552 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-11 16:52:52,576 INFO L204 MainTranslator]: Completed translation [2024-11-11 16:52:52,577 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:52:52 WrapperNode [2024-11-11 16:52:52,577 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-11 16:52:52,578 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-11 16:52:52,579 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-11 16:52:52,579 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-11 16:52:52,585 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:52:52" (1/1) ... [2024-11-11 16:52:52,636 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:52:52" (1/1) ... [2024-11-11 16:52:52,867 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4761 [2024-11-11 16:52:52,868 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-11 16:52:52,869 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-11 16:52:52,869 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-11 16:52:52,869 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-11 16:52:52,879 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:52:52" (1/1) ... [2024-11-11 16:52:52,880 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:52:52" (1/1) ... [2024-11-11 16:52:52,923 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:52:52" (1/1) ... [2024-11-11 16:52:53,127 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]. [2024-11-11 16:52:53,128 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:52:52" (1/1) ... [2024-11-11 16:52:53,128 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:52:52" (1/1) ... [2024-11-11 16:52:53,327 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:52:52" (1/1) ... [2024-11-11 16:52:53,349 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:52:52" (1/1) ... [2024-11-11 16:52:53,386 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:52:52" (1/1) ... [2024-11-11 16:52:53,406 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:52:52" (1/1) ... [2024-11-11 16:52:53,456 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-11 16:52:53,458 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-11 16:52:53,458 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-11 16:52:53,459 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-11 16:52:53,460 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:52:52" (1/1) ... [2024-11-11 16:52:53,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-11 16:52:53,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 16:52:53,490 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) [2024-11-11 16:52:53,496 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 [2024-11-11 16:52:53,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-11 16:52:53,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-11 16:52:53,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-11 16:52:53,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-11 16:52:53,613 INFO L238 CfgBuilder]: Building ICFG [2024-11-11 16:52:53,615 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-11 16:52:57,713 INFO L? ?]: Removed 702 outVars from TransFormulas that were not future-live. [2024-11-11 16:52:57,713 INFO L287 CfgBuilder]: Performing block encoding [2024-11-11 16:52:57,754 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-11 16:52:57,755 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-11 16:52:57,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 04:52:57 BoogieIcfgContainer [2024-11-11 16:52:57,756 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-11 16:52:57,758 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-11 16:52:57,758 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-11 16:52:57,763 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-11 16:52:57,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 04:52:50" (1/3) ... [2024-11-11 16:52:57,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17f00cd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 04:52:57, skipping insertion in model container [2024-11-11 16:52:57,765 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 04:52:52" (2/3) ... [2024-11-11 16:52:57,765 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17f00cd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 04:52:57, skipping insertion in model container [2024-11-11 16:52:57,766 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 04:52:57" (3/3) ... [2024-11-11 16:52:57,767 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label17.c [2024-11-11 16:52:57,789 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-11 16:52:57,789 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-11 16:52:57,894 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-11 16:52:57,903 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;@688bb52f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-11 16:52:57,904 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-11 16:52:57,911 INFO L276 IsEmpty]: Start isEmpty. Operand has 818 states, 816 states have (on average 1.9178921568627452) internal successors, (1565), 817 states have internal predecessors, (1565), 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) [2024-11-11 16:52:57,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-11 16:52:57,918 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:52:57,919 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 16:52:57,919 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:52:57,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:52:57,924 INFO L85 PathProgramCache]: Analyzing trace with hash 2102454322, now seen corresponding path program 1 times [2024-11-11 16:52:57,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:52:57,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608980736] [2024-11-11 16:52:57,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:52:57,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:52:58,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:52:58,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 16:52:58,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:52:58,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608980736] [2024-11-11 16:52:58,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608980736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:52:58,304 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:52:58,304 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 16:52:58,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614849554] [2024-11-11 16:52:58,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:52:58,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:52:58,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:52:58,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:52:58,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:52:58,340 INFO L87 Difference]: Start difference. First operand has 818 states, 816 states have (on average 1.9178921568627452) internal successors, (1565), 817 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 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) [2024-11-11 16:53:01,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:53:01,811 INFO L93 Difference]: Finished difference Result 2388 states and 4629 transitions. [2024-11-11 16:53:01,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:53:01,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 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 40 [2024-11-11 16:53:01,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:53:01,844 INFO L225 Difference]: With dead ends: 2388 [2024-11-11 16:53:01,844 INFO L226 Difference]: Without dead ends: 1506 [2024-11-11 16:53:01,852 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:53:01,856 INFO L435 NwaCegarLoop]: 146 mSDtfsCounter, 857 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2437 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 3208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 2437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-11 16:53:01,856 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [857 Valid, 156 Invalid, 3208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [771 Valid, 2437 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-11 16:53:01,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2024-11-11 16:53:01,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 1506. [2024-11-11 16:53:01,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1506 states, 1505 states have (on average 1.8458471760797341) internal successors, (2778), 1505 states have internal predecessors, (2778), 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) [2024-11-11 16:53:01,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1506 states to 1506 states and 2778 transitions. [2024-11-11 16:53:01,983 INFO L78 Accepts]: Start accepts. Automaton has 1506 states and 2778 transitions. Word has length 40 [2024-11-11 16:53:01,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:53:01,985 INFO L471 AbstractCegarLoop]: Abstraction has 1506 states and 2778 transitions. [2024-11-11 16:53:01,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 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) [2024-11-11 16:53:01,985 INFO L276 IsEmpty]: Start isEmpty. Operand 1506 states and 2778 transitions. [2024-11-11 16:53:01,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-11 16:53:01,990 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:53:01,991 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-11 16:53:01,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-11 16:53:01,992 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:53:01,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:53:01,993 INFO L85 PathProgramCache]: Analyzing trace with hash 844472710, now seen corresponding path program 1 times [2024-11-11 16:53:01,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:53:01,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138315593] [2024-11-11 16:53:01,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:53:01,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:53:02,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:53:02,249 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 16:53:02,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:53:02,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138315593] [2024-11-11 16:53:02,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138315593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:53:02,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:53:02,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-11 16:53:02,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633211590] [2024-11-11 16:53:02,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:53:02,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:53:02,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:53:02,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:53:02,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:53:02,254 INFO L87 Difference]: Start difference. First operand 1506 states and 2778 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 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) [2024-11-11 16:53:05,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:53:05,496 INFO L93 Difference]: Finished difference Result 3761 states and 6893 transitions. [2024-11-11 16:53:05,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:53:05,497 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 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 109 [2024-11-11 16:53:05,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:53:05,506 INFO L225 Difference]: With dead ends: 3761 [2024-11-11 16:53:05,506 INFO L226 Difference]: Without dead ends: 2257 [2024-11-11 16:53:05,507 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:53:05,508 INFO L435 NwaCegarLoop]: 442 mSDtfsCounter, 780 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 864 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 2859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 864 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-11 16:53:05,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 448 Invalid, 2859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [864 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-11 16:53:05,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2024-11-11 16:53:05,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 2257. [2024-11-11 16:53:05,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2257 states, 2256 states have (on average 1.4419326241134751) internal successors, (3253), 2256 states have internal predecessors, (3253), 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) [2024-11-11 16:53:05,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2257 states to 2257 states and 3253 transitions. [2024-11-11 16:53:05,542 INFO L78 Accepts]: Start accepts. Automaton has 2257 states and 3253 transitions. Word has length 109 [2024-11-11 16:53:05,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:53:05,544 INFO L471 AbstractCegarLoop]: Abstraction has 2257 states and 3253 transitions. [2024-11-11 16:53:05,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 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) [2024-11-11 16:53:05,545 INFO L276 IsEmpty]: Start isEmpty. Operand 2257 states and 3253 transitions. [2024-11-11 16:53:05,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-11 16:53:05,547 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:53:05,547 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-11 16:53:05,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-11 16:53:05,548 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:53:05,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:53:05,548 INFO L85 PathProgramCache]: Analyzing trace with hash -2055292671, now seen corresponding path program 1 times [2024-11-11 16:53:05,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:53:05,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404498369] [2024-11-11 16:53:05,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:53:05,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:53:05,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:53:05,876 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-11 16:53:05,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:53:05,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404498369] [2024-11-11 16:53:05,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404498369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:53:05,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:53:05,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:53:05,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800992581] [2024-11-11 16:53:05,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:53:05,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 16:53:05,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:53:05,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 16:53:05,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 16:53:05,882 INFO L87 Difference]: Start difference. First operand 2257 states and 3253 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 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) [2024-11-11 16:53:09,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:53:09,637 INFO L93 Difference]: Finished difference Result 6802 states and 9791 transitions. [2024-11-11 16:53:09,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 16:53:09,638 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 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 111 [2024-11-11 16:53:09,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:53:09,655 INFO L225 Difference]: With dead ends: 6802 [2024-11-11 16:53:09,655 INFO L226 Difference]: Without dead ends: 4510 [2024-11-11 16:53:09,658 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 16:53:09,659 INFO L435 NwaCegarLoop]: 686 mSDtfsCounter, 703 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 3105 mSolverCounterSat, 729 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 700 SdHoareTripleChecker+Invalid, 3834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 729 IncrementalHoareTripleChecker+Valid, 3105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-11 16:53:09,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 700 Invalid, 3834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [729 Valid, 3105 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-11 16:53:09,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4510 states. [2024-11-11 16:53:09,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4510 to 3759. [2024-11-11 16:53:09,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3759 states, 3758 states have (on average 1.2714209686003193) internal successors, (4778), 3758 states have internal predecessors, (4778), 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) [2024-11-11 16:53:09,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3759 states to 3759 states and 4778 transitions. [2024-11-11 16:53:09,723 INFO L78 Accepts]: Start accepts. Automaton has 3759 states and 4778 transitions. Word has length 111 [2024-11-11 16:53:09,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:53:09,723 INFO L471 AbstractCegarLoop]: Abstraction has 3759 states and 4778 transitions. [2024-11-11 16:53:09,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 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) [2024-11-11 16:53:09,724 INFO L276 IsEmpty]: Start isEmpty. Operand 3759 states and 4778 transitions. [2024-11-11 16:53:09,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-11 16:53:09,728 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:53:09,728 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 16:53:09,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-11 16:53:09,728 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:53:09,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:53:09,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1759287711, now seen corresponding path program 1 times [2024-11-11 16:53:09,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:53:09,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236275191] [2024-11-11 16:53:09,730 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:53:09,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:53:09,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:53:10,204 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-11 16:53:10,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:53:10,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236275191] [2024-11-11 16:53:10,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236275191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:53:10,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:53:10,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:53:10,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524123901] [2024-11-11 16:53:10,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:53:10,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 16:53:10,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:53:10,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 16:53:10,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 16:53:10,211 INFO L87 Difference]: Start difference. First operand 3759 states and 4778 transitions. Second operand has 4 states, 4 states have (on average 45.75) internal successors, (183), 3 states have internal predecessors, (183), 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) [2024-11-11 16:53:13,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:53:13,275 INFO L93 Difference]: Finished difference Result 9808 states and 12774 transitions. [2024-11-11 16:53:13,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 16:53:13,276 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 45.75) internal successors, (183), 3 states have internal predecessors, (183), 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 252 [2024-11-11 16:53:13,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:53:13,297 INFO L225 Difference]: With dead ends: 9808 [2024-11-11 16:53:13,298 INFO L226 Difference]: Without dead ends: 6014 [2024-11-11 16:53:13,304 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-11 16:53:13,305 INFO L435 NwaCegarLoop]: 311 mSDtfsCounter, 775 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 3718 mSolverCounterSat, 542 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 4260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 542 IncrementalHoareTripleChecker+Valid, 3718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-11 16:53:13,306 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [775 Valid, 327 Invalid, 4260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [542 Valid, 3718 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-11 16:53:13,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6014 states. [2024-11-11 16:53:13,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6014 to 6012. [2024-11-11 16:53:13,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6012 states, 6011 states have (on average 1.222758276493096) internal successors, (7350), 6011 states have internal predecessors, (7350), 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) [2024-11-11 16:53:13,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6012 states to 6012 states and 7350 transitions. [2024-11-11 16:53:13,436 INFO L78 Accepts]: Start accepts. Automaton has 6012 states and 7350 transitions. Word has length 252 [2024-11-11 16:53:13,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:53:13,438 INFO L471 AbstractCegarLoop]: Abstraction has 6012 states and 7350 transitions. [2024-11-11 16:53:13,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.75) internal successors, (183), 3 states have internal predecessors, (183), 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) [2024-11-11 16:53:13,438 INFO L276 IsEmpty]: Start isEmpty. Operand 6012 states and 7350 transitions. [2024-11-11 16:53:13,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2024-11-11 16:53:13,443 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:53:13,443 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-11 16:53:13,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-11 16:53:13,443 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:53:13,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:53:13,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1438391502, now seen corresponding path program 1 times [2024-11-11 16:53:13,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:53:13,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46763066] [2024-11-11 16:53:13,446 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:53:13,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:53:13,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:53:14,139 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-11 16:53:14,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:53:14,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46763066] [2024-11-11 16:53:14,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46763066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:53:14,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:53:14,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:53:14,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676641188] [2024-11-11 16:53:14,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:53:14,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-11 16:53:14,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:53:14,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-11 16:53:14,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-11 16:53:14,145 INFO L87 Difference]: Start difference. First operand 6012 states and 7350 transitions. Second operand has 4 states, 4 states have (on average 54.0) internal successors, (216), 3 states have internal predecessors, (216), 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) [2024-11-11 16:53:18,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:53:18,093 INFO L93 Difference]: Finished difference Result 18030 states and 22021 transitions. [2024-11-11 16:53:18,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-11 16:53:18,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 3 states have internal predecessors, (216), 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 253 [2024-11-11 16:53:18,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:53:18,124 INFO L225 Difference]: With dead ends: 18030 [2024-11-11 16:53:18,124 INFO L226 Difference]: Without dead ends: 12020 [2024-11-11 16:53:18,133 INFO L434 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 [2024-11-11 16:53:18,134 INFO L435 NwaCegarLoop]: 585 mSDtfsCounter, 2026 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 4470 mSolverCounterSat, 550 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2026 SdHoareTripleChecker+Valid, 605 SdHoareTripleChecker+Invalid, 5020 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 4470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-11 16:53:18,134 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2026 Valid, 605 Invalid, 5020 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 4470 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-11 16:53:18,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12020 states. [2024-11-11 16:53:18,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12020 to 10518. [2024-11-11 16:53:18,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10518 states, 10517 states have (on average 1.156223257582961) internal successors, (12160), 10517 states have internal predecessors, (12160), 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) [2024-11-11 16:53:18,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10518 states to 10518 states and 12160 transitions. [2024-11-11 16:53:18,315 INFO L78 Accepts]: Start accepts. Automaton has 10518 states and 12160 transitions. Word has length 253 [2024-11-11 16:53:18,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:53:18,315 INFO L471 AbstractCegarLoop]: Abstraction has 10518 states and 12160 transitions. [2024-11-11 16:53:18,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 3 states have internal predecessors, (216), 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) [2024-11-11 16:53:18,316 INFO L276 IsEmpty]: Start isEmpty. Operand 10518 states and 12160 transitions. [2024-11-11 16:53:18,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2024-11-11 16:53:18,321 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:53:18,321 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 16:53:18,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-11 16:53:18,321 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:53:18,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:53:18,322 INFO L85 PathProgramCache]: Analyzing trace with hash 514166394, now seen corresponding path program 1 times [2024-11-11 16:53:18,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:53:18,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120390269] [2024-11-11 16:53:18,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:53:18,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:53:18,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:53:18,552 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 296 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-11 16:53:18,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:53:18,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120390269] [2024-11-11 16:53:18,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120390269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:53:18,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:53:18,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:53:18,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600426238] [2024-11-11 16:53:18,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:53:18,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:53:18,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:53:18,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:53:18,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:53:18,557 INFO L87 Difference]: Start difference. First operand 10518 states and 12160 transitions. Second operand has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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) [2024-11-11 16:53:21,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:53:21,639 INFO L93 Difference]: Finished difference Result 30797 states and 35716 transitions. [2024-11-11 16:53:21,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:53:21,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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 335 [2024-11-11 16:53:21,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:53:21,679 INFO L225 Difference]: With dead ends: 30797 [2024-11-11 16:53:21,679 INFO L226 Difference]: Without dead ends: 20281 [2024-11-11 16:53:21,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:53:21,697 INFO L435 NwaCegarLoop]: 1378 mSDtfsCounter, 667 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2720 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 1386 SdHoareTripleChecker+Invalid, 3081 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 2720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-11 16:53:21,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [667 Valid, 1386 Invalid, 3081 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [361 Valid, 2720 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-11 16:53:21,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20281 states. [2024-11-11 16:53:21,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20281 to 18779. [2024-11-11 16:53:21,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18779 states, 18778 states have (on average 1.1468207476834593) internal successors, (21535), 18778 states have internal predecessors, (21535), 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) [2024-11-11 16:53:21,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18779 states to 18779 states and 21535 transitions. [2024-11-11 16:53:21,977 INFO L78 Accepts]: Start accepts. Automaton has 18779 states and 21535 transitions. Word has length 335 [2024-11-11 16:53:21,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:53:21,977 INFO L471 AbstractCegarLoop]: Abstraction has 18779 states and 21535 transitions. [2024-11-11 16:53:21,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 99.33333333333333) internal successors, (298), 3 states have internal predecessors, (298), 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) [2024-11-11 16:53:21,978 INFO L276 IsEmpty]: Start isEmpty. Operand 18779 states and 21535 transitions. [2024-11-11 16:53:21,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2024-11-11 16:53:21,983 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:53:21,984 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 16:53:21,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-11 16:53:21,984 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:53:21,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:53:21,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1531787760, now seen corresponding path program 1 times [2024-11-11 16:53:21,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:53:21,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921180331] [2024-11-11 16:53:21,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:53:21,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:53:22,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:53:22,402 INFO L134 CoverageAnalysis]: Checked inductivity of 334 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-11 16:53:22,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:53:22,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921180331] [2024-11-11 16:53:22,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921180331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:53:22,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:53:22,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:53:22,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938050503] [2024-11-11 16:53:22,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:53:22,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:53:22,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:53:22,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:53:22,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:53:22,405 INFO L87 Difference]: Start difference. First operand 18779 states and 21535 transitions. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2024-11-11 16:53:24,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:53:24,953 INFO L93 Difference]: Finished difference Result 45817 states and 53206 transitions. [2024-11-11 16:53:24,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:53:24,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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 339 [2024-11-11 16:53:24,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:53:25,005 INFO L225 Difference]: With dead ends: 45817 [2024-11-11 16:53:25,005 INFO L226 Difference]: Without dead ends: 27040 [2024-11-11 16:53:25,034 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:53:25,037 INFO L435 NwaCegarLoop]: 1196 mSDtfsCounter, 704 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2238 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 1204 SdHoareTripleChecker+Invalid, 2671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 2238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-11 16:53:25,038 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 1204 Invalid, 2671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [433 Valid, 2238 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-11 16:53:25,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27040 states. [2024-11-11 16:53:25,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27040 to 27040. [2024-11-11 16:53:25,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27040 states, 27039 states have (on average 1.1243759014756463) internal successors, (30402), 27039 states have internal predecessors, (30402), 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) [2024-11-11 16:53:25,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27040 states to 27040 states and 30402 transitions. [2024-11-11 16:53:25,652 INFO L78 Accepts]: Start accepts. Automaton has 27040 states and 30402 transitions. Word has length 339 [2024-11-11 16:53:25,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:53:25,652 INFO L471 AbstractCegarLoop]: Abstraction has 27040 states and 30402 transitions. [2024-11-11 16:53:25,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 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) [2024-11-11 16:53:25,653 INFO L276 IsEmpty]: Start isEmpty. Operand 27040 states and 30402 transitions. [2024-11-11 16:53:25,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2024-11-11 16:53:25,661 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:53:25,662 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 16:53:25,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-11 16:53:25,663 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:53:25,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:53:25,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1452005440, now seen corresponding path program 1 times [2024-11-11 16:53:25,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:53:25,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875580253] [2024-11-11 16:53:25,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:53:25,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:53:25,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:53:26,090 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-11-11 16:53:26,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:53:26,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875580253] [2024-11-11 16:53:26,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875580253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:53:26,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:53:26,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:53:26,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938552962] [2024-11-11 16:53:26,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:53:26,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:53:26,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:53:26,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:53:26,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:53:26,093 INFO L87 Difference]: Start difference. First operand 27040 states and 30402 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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) [2024-11-11 16:53:28,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:53:28,909 INFO L93 Difference]: Finished difference Result 66845 states and 75537 transitions. [2024-11-11 16:53:28,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:53:28,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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 371 [2024-11-11 16:53:28,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:53:28,989 INFO L225 Difference]: With dead ends: 66845 [2024-11-11 16:53:28,990 INFO L226 Difference]: Without dead ends: 39807 [2024-11-11 16:53:29,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:53:29,018 INFO L435 NwaCegarLoop]: 397 mSDtfsCounter, 736 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2520 mSolverCounterSat, 436 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 2956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 436 IncrementalHoareTripleChecker+Valid, 2520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-11 16:53:29,018 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 404 Invalid, 2956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [436 Valid, 2520 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-11 16:53:29,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39807 states. [2024-11-11 16:53:29,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39807 to 38305. [2024-11-11 16:53:29,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38305 states, 38304 states have (on average 1.1223370927318295) internal successors, (42990), 38304 states have internal predecessors, (42990), 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) [2024-11-11 16:53:29,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38305 states to 38305 states and 42990 transitions. [2024-11-11 16:53:29,462 INFO L78 Accepts]: Start accepts. Automaton has 38305 states and 42990 transitions. Word has length 371 [2024-11-11 16:53:29,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:53:29,463 INFO L471 AbstractCegarLoop]: Abstraction has 38305 states and 42990 transitions. [2024-11-11 16:53:29,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 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) [2024-11-11 16:53:29,463 INFO L276 IsEmpty]: Start isEmpty. Operand 38305 states and 42990 transitions. [2024-11-11 16:53:29,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2024-11-11 16:53:29,470 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:53:29,470 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-11 16:53:29,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-11 16:53:29,471 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:53:29,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:53:29,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1665359754, now seen corresponding path program 1 times [2024-11-11 16:53:29,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:53:29,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782911635] [2024-11-11 16:53:29,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:53:29,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:53:29,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:53:29,771 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 305 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-11 16:53:29,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:53:29,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782911635] [2024-11-11 16:53:29,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782911635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:53:29,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:53:29,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:53:29,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887273762] [2024-11-11 16:53:29,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:53:29,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:53:29,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:53:29,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:53:29,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:53:29,774 INFO L87 Difference]: Start difference. First operand 38305 states and 42990 transitions. Second operand has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 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) [2024-11-11 16:53:32,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:53:32,455 INFO L93 Difference]: Finished difference Result 94632 states and 107674 transitions. [2024-11-11 16:53:32,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:53:32,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 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 378 [2024-11-11 16:53:32,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:53:32,560 INFO L225 Difference]: With dead ends: 94632 [2024-11-11 16:53:32,561 INFO L226 Difference]: Without dead ends: 56329 [2024-11-11 16:53:32,598 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:53:32,599 INFO L435 NwaCegarLoop]: 1251 mSDtfsCounter, 704 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2128 mSolverCounterSat, 688 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 1259 SdHoareTripleChecker+Invalid, 2816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 688 IncrementalHoareTripleChecker+Valid, 2128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-11 16:53:32,600 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 1259 Invalid, 2816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [688 Valid, 2128 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-11 16:53:32,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56329 states. [2024-11-11 16:53:33,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56329 to 54076. [2024-11-11 16:53:33,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54076 states, 54075 states have (on average 1.1104761904761904) internal successors, (60049), 54075 states have internal predecessors, (60049), 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) [2024-11-11 16:53:33,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54076 states to 54076 states and 60049 transitions. [2024-11-11 16:53:33,392 INFO L78 Accepts]: Start accepts. Automaton has 54076 states and 60049 transitions. Word has length 378 [2024-11-11 16:53:33,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:53:33,393 INFO L471 AbstractCegarLoop]: Abstraction has 54076 states and 60049 transitions. [2024-11-11 16:53:33,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.33333333333333) internal successors, (295), 3 states have internal predecessors, (295), 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) [2024-11-11 16:53:33,394 INFO L276 IsEmpty]: Start isEmpty. Operand 54076 states and 60049 transitions. [2024-11-11 16:53:33,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-11-11 16:53:33,408 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:53:33,409 INFO L218 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, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 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] [2024-11-11 16:53:33,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-11 16:53:33,409 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:53:33,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:53:33,414 INFO L85 PathProgramCache]: Analyzing trace with hash -674997957, now seen corresponding path program 1 times [2024-11-11 16:53:33,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:53:33,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657692022] [2024-11-11 16:53:33,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:53:33,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:53:33,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:53:33,744 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 399 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-11-11 16:53:33,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:53:33,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657692022] [2024-11-11 16:53:33,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657692022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:53:33,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:53:33,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:53:33,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337366875] [2024-11-11 16:53:33,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:53:33,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:53:33,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:53:33,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:53:33,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:53:33,749 INFO L87 Difference]: Start difference. First operand 54076 states and 60049 transitions. Second operand has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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) [2024-11-11 16:53:37,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:53:37,020 INFO L93 Difference]: Finished difference Result 137439 states and 153697 transitions. [2024-11-11 16:53:37,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:53:37,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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 461 [2024-11-11 16:53:37,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:53:37,134 INFO L225 Difference]: With dead ends: 137439 [2024-11-11 16:53:37,135 INFO L226 Difference]: Without dead ends: 80361 [2024-11-11 16:53:37,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:53:37,171 INFO L435 NwaCegarLoop]: 1278 mSDtfsCounter, 707 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2206 mSolverCounterSat, 611 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 1285 SdHoareTripleChecker+Invalid, 2817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 611 IncrementalHoareTripleChecker+Valid, 2206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-11 16:53:37,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 1285 Invalid, 2817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [611 Valid, 2206 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-11 16:53:37,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80361 states. [2024-11-11 16:53:38,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80361 to 78859. [2024-11-11 16:53:38,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78859 states, 78858 states have (on average 1.0924700093839559) internal successors, (86150), 78858 states have internal predecessors, (86150), 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) [2024-11-11 16:53:38,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78859 states to 78859 states and 86150 transitions. [2024-11-11 16:53:38,547 INFO L78 Accepts]: Start accepts. Automaton has 78859 states and 86150 transitions. Word has length 461 [2024-11-11 16:53:38,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:53:38,552 INFO L471 AbstractCegarLoop]: Abstraction has 78859 states and 86150 transitions. [2024-11-11 16:53:38,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.66666666666667) internal successors, (278), 3 states have internal predecessors, (278), 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) [2024-11-11 16:53:38,552 INFO L276 IsEmpty]: Start isEmpty. Operand 78859 states and 86150 transitions. [2024-11-11 16:53:38,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-11-11 16:53:38,587 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:53:38,588 INFO L218 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 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] [2024-11-11 16:53:38,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-11 16:53:38,588 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:53:38,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:53:38,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1518347933, now seen corresponding path program 1 times [2024-11-11 16:53:38,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:53:38,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579261927] [2024-11-11 16:53:38,590 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:53:38,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:53:38,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:53:39,242 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 570 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-11-11 16:53:39,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:53:39,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579261927] [2024-11-11 16:53:39,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579261927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:53:39,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:53:39,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:53:39,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825341330] [2024-11-11 16:53:39,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:53:39,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:53:39,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:53:39,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:53:39,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:53:39,246 INFO L87 Difference]: Start difference. First operand 78859 states and 86150 transitions. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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) [2024-11-11 16:53:42,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:53:42,255 INFO L93 Difference]: Finished difference Result 158467 states and 173011 transitions. [2024-11-11 16:53:42,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:53:42,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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 473 [2024-11-11 16:53:42,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:53:42,347 INFO L225 Difference]: With dead ends: 158467 [2024-11-11 16:53:42,347 INFO L226 Difference]: Without dead ends: 79610 [2024-11-11 16:53:42,370 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:53:42,371 INFO L435 NwaCegarLoop]: 1152 mSDtfsCounter, 696 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2386 mSolverCounterSat, 525 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 2911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 525 IncrementalHoareTripleChecker+Valid, 2386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-11 16:53:42,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 1159 Invalid, 2911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [525 Valid, 2386 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-11 16:53:42,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79610 states. [2024-11-11 16:53:43,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79610 to 77357. [2024-11-11 16:53:43,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77357 states, 77356 states have (on average 1.0819587362324836) internal successors, (83696), 77356 states have internal predecessors, (83696), 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) [2024-11-11 16:53:43,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77357 states to 77357 states and 83696 transitions. [2024-11-11 16:53:43,532 INFO L78 Accepts]: Start accepts. Automaton has 77357 states and 83696 transitions. Word has length 473 [2024-11-11 16:53:43,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:53:43,532 INFO L471 AbstractCegarLoop]: Abstraction has 77357 states and 83696 transitions. [2024-11-11 16:53:43,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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) [2024-11-11 16:53:43,533 INFO L276 IsEmpty]: Start isEmpty. Operand 77357 states and 83696 transitions. [2024-11-11 16:53:43,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2024-11-11 16:53:43,543 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:53:43,543 INFO L218 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 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] [2024-11-11 16:53:43,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-11 16:53:43,544 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:53:43,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:53:43,544 INFO L85 PathProgramCache]: Analyzing trace with hash -688529288, now seen corresponding path program 1 times [2024-11-11 16:53:43,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:53:43,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889004748] [2024-11-11 16:53:43,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:53:43,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:53:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:53:44,074 INFO L134 CoverageAnalysis]: Checked inductivity of 696 backedges. 439 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2024-11-11 16:53:44,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:53:44,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889004748] [2024-11-11 16:53:44,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889004748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:53:44,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:53:44,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:53:44,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222285675] [2024-11-11 16:53:44,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:53:44,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:53:44,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:53:44,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:53:44,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:53:44,077 INFO L87 Difference]: Start difference. First operand 77357 states and 83696 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:53:46,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:53:46,683 INFO L93 Difference]: Finished difference Result 154712 states and 167390 transitions. [2024-11-11 16:53:46,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:53:46,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 474 [2024-11-11 16:53:46,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:53:46,763 INFO L225 Difference]: With dead ends: 154712 [2024-11-11 16:53:46,763 INFO L226 Difference]: Without dead ends: 77357 [2024-11-11 16:53:46,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:53:46,797 INFO L435 NwaCegarLoop]: 394 mSDtfsCounter, 700 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2199 mSolverCounterSat, 489 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 2688 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 489 IncrementalHoareTripleChecker+Valid, 2199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-11 16:53:46,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 401 Invalid, 2688 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [489 Valid, 2199 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-11 16:53:46,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77357 states. [2024-11-11 16:53:47,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77357 to 72851. [2024-11-11 16:53:47,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72851 states, 72850 states have (on average 1.0574056280027453) internal successors, (77032), 72850 states have internal predecessors, (77032), 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) [2024-11-11 16:53:47,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72851 states to 72851 states and 77032 transitions. [2024-11-11 16:53:47,758 INFO L78 Accepts]: Start accepts. Automaton has 72851 states and 77032 transitions. Word has length 474 [2024-11-11 16:53:47,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:53:47,759 INFO L471 AbstractCegarLoop]: Abstraction has 72851 states and 77032 transitions. [2024-11-11 16:53:47,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-11 16:53:47,759 INFO L276 IsEmpty]: Start isEmpty. Operand 72851 states and 77032 transitions. [2024-11-11 16:53:47,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2024-11-11 16:53:47,775 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:53:47,775 INFO L218 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-11 16:53:47,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-11 16:53:47,776 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:53:47,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:53:47,777 INFO L85 PathProgramCache]: Analyzing trace with hash 995647817, now seen corresponding path program 1 times [2024-11-11 16:53:47,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:53:47,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519019530] [2024-11-11 16:53:47,777 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:53:47,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:53:48,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:53:48,266 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 454 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-11-11 16:53:48,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:53:48,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519019530] [2024-11-11 16:53:48,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519019530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:53:48,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:53:48,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:53:48,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690001581] [2024-11-11 16:53:48,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:53:48,268 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:53:48,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:53:48,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:53:48,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:53:48,269 INFO L87 Difference]: Start difference. First operand 72851 states and 77032 transitions. Second operand has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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) [2024-11-11 16:53:51,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:53:51,237 INFO L93 Difference]: Finished difference Result 185503 states and 197114 transitions. [2024-11-11 16:53:51,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:53:51,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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 480 [2024-11-11 16:53:51,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:53:51,361 INFO L225 Difference]: With dead ends: 185503 [2024-11-11 16:53:51,361 INFO L226 Difference]: Without dead ends: 112654 [2024-11-11 16:53:51,404 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:53:51,405 INFO L435 NwaCegarLoop]: 465 mSDtfsCounter, 662 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2245 mSolverCounterSat, 639 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 2884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 639 IncrementalHoareTripleChecker+Valid, 2245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-11 16:53:51,405 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 472 Invalid, 2884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [639 Valid, 2245 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-11 16:53:51,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112654 states. [2024-11-11 16:53:52,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112654 to 109650. [2024-11-11 16:53:52,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109650 states, 109649 states have (on average 1.0563981431659204) internal successors, (115833), 109649 states have internal predecessors, (115833), 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) [2024-11-11 16:53:52,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109650 states to 109650 states and 115833 transitions. [2024-11-11 16:53:52,968 INFO L78 Accepts]: Start accepts. Automaton has 109650 states and 115833 transitions. Word has length 480 [2024-11-11 16:53:52,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:53:52,968 INFO L471 AbstractCegarLoop]: Abstraction has 109650 states and 115833 transitions. [2024-11-11 16:53:52,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.0) internal successors, (273), 3 states have internal predecessors, (273), 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) [2024-11-11 16:53:52,969 INFO L276 IsEmpty]: Start isEmpty. Operand 109650 states and 115833 transitions. [2024-11-11 16:53:52,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2024-11-11 16:53:52,992 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:53:52,993 INFO L218 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 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] [2024-11-11 16:53:52,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-11 16:53:52,993 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:53:52,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:53:52,994 INFO L85 PathProgramCache]: Analyzing trace with hash -836361929, now seen corresponding path program 1 times [2024-11-11 16:53:52,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:53:52,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630267723] [2024-11-11 16:53:52,995 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:53:52,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:53:53,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:53:53,380 INFO L134 CoverageAnalysis]: Checked inductivity of 797 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2024-11-11 16:53:53,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:53:53,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630267723] [2024-11-11 16:53:53,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630267723] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-11 16:53:53,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-11 16:53:53,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-11 16:53:53,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089290798] [2024-11-11 16:53:53,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-11 16:53:53,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-11 16:53:53,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-11 16:53:53,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-11 16:53:53,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:53:53,384 INFO L87 Difference]: Start difference. First operand 109650 states and 115833 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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) [2024-11-11 16:53:56,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-11 16:53:56,388 INFO L93 Difference]: Finished difference Result 241828 states and 255683 transitions. [2024-11-11 16:53:56,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-11 16:53:56,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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 565 [2024-11-11 16:53:56,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-11 16:53:56,524 INFO L225 Difference]: With dead ends: 241828 [2024-11-11 16:53:56,524 INFO L226 Difference]: Without dead ends: 132180 [2024-11-11 16:53:56,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-11 16:53:56,586 INFO L435 NwaCegarLoop]: 1109 mSDtfsCounter, 834 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2162 mSolverCounterSat, 415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 2577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 415 IncrementalHoareTripleChecker+Valid, 2162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-11 16:53:56,586 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [834 Valid, 1117 Invalid, 2577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [415 Valid, 2162 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-11 16:53:56,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132180 states. [2024-11-11 16:53:58,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132180 to 130678. [2024-11-11 16:53:58,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130678 states, 130677 states have (on average 1.0509041376829893) internal successors, (137329), 130677 states have internal predecessors, (137329), 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) [2024-11-11 16:53:58,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130678 states to 130678 states and 137329 transitions. [2024-11-11 16:53:58,256 INFO L78 Accepts]: Start accepts. Automaton has 130678 states and 137329 transitions. Word has length 565 [2024-11-11 16:53:58,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-11 16:53:58,256 INFO L471 AbstractCegarLoop]: Abstraction has 130678 states and 137329 transitions. [2024-11-11 16:53:58,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 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) [2024-11-11 16:53:58,257 INFO L276 IsEmpty]: Start isEmpty. Operand 130678 states and 137329 transitions. [2024-11-11 16:53:58,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1052 [2024-11-11 16:53:58,319 INFO L210 NwaCegarLoop]: Found error trace [2024-11-11 16:53:58,320 INFO L218 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-11 16:53:58,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-11 16:53:58,320 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-11 16:53:58,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-11 16:53:58,321 INFO L85 PathProgramCache]: Analyzing trace with hash 2044369825, now seen corresponding path program 1 times [2024-11-11 16:53:58,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-11 16:53:58,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86727560] [2024-11-11 16:53:58,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:53:58,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-11 16:53:58,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:54:00,783 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 192 proven. 372 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2024-11-11 16:54:00,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-11 16:54:00,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86727560] [2024-11-11 16:54:00,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86727560] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-11 16:54:00,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117053028] [2024-11-11 16:54:00,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-11 16:54:00,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-11 16:54:00,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-11 16:54:00,787 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) [2024-11-11 16:54:00,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-11 16:54:01,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-11 16:54:01,146 INFO L256 TraceCheckSpWp]: Trace formula consists of 1217 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-11 16:54:01,184 INFO L279 TraceCheckSpWp]: Computing forward predicates...