./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label49.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label49.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 08af54cde19107da336de06530b4d4e9301f950145de9f25438005f74799fda5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-23 21:08:50,385 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-23 21:08:50,444 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-23 21:08:50,449 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-23 21:08:50,450 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-23 21:08:50,473 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-23 21:08:50,474 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-23 21:08:50,474 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-23 21:08:50,475 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-23 21:08:50,476 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-23 21:08:50,477 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-23 21:08:50,477 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-23 21:08:50,477 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-23 21:08:50,478 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-23 21:08:50,479 INFO L153 SettingsManager]: * Use SBE=true [2024-10-23 21:08:50,479 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-23 21:08:50,479 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-23 21:08:50,480 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-23 21:08:50,480 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-23 21:08:50,480 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-23 21:08:50,480 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-23 21:08:50,482 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-23 21:08:50,482 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-23 21:08:50,483 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-23 21:08:50,483 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-23 21:08:50,483 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-23 21:08:50,483 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-23 21:08:50,483 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-23 21:08:50,484 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-23 21:08:50,484 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-23 21:08:50,484 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-23 21:08:50,484 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-23 21:08:50,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 21:08:50,484 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-23 21:08:50,484 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-23 21:08:50,489 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-23 21:08:50,490 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-23 21:08:50,490 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-23 21:08:50,490 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-23 21:08:50,491 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-23 21:08:50,491 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-23 21:08:50,492 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-23 21:08:50,492 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08af54cde19107da336de06530b4d4e9301f950145de9f25438005f74799fda5 [2024-10-23 21:08:50,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-23 21:08:50,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-23 21:08:50,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-23 21:08:50,715 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-23 21:08:50,715 INFO L274 PluginConnector]: CDTParser initialized [2024-10-23 21:08:50,716 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label49.c [2024-10-23 21:08:51,987 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-23 21:08:52,278 INFO L384 CDTParser]: Found 1 translation units. [2024-10-23 21:08:52,279 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label49.c [2024-10-23 21:08:52,306 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a336b495e/ae6b549b33e244cfb09e9aa3ed8b9dc2/FLAG109d4bca2 [2024-10-23 21:08:52,320 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a336b495e/ae6b549b33e244cfb09e9aa3ed8b9dc2 [2024-10-23 21:08:52,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-23 21:08:52,324 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-23 21:08:52,326 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-23 21:08:52,326 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-23 21:08:52,330 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-23 21:08:52,331 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:08:52" (1/1) ... [2024-10-23 21:08:52,331 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@632adbd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:08:52, skipping insertion in model container [2024-10-23 21:08:52,331 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:08:52" (1/1) ... [2024-10-23 21:08:52,414 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-23 21:08:52,615 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label49.c[5366,5379] [2024-10-23 21:08:53,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 21:08:53,185 INFO L200 MainTranslator]: Completed pre-run [2024-10-23 21:08:53,205 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label49.c[5366,5379] [2024-10-23 21:08:53,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 21:08:53,510 INFO L204 MainTranslator]: Completed translation [2024-10-23 21:08:53,511 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:08:53 WrapperNode [2024-10-23 21:08:53,511 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-23 21:08:53,512 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-23 21:08:53,513 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-23 21:08:53,513 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-23 21:08:53,519 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:08:53" (1/1) ... [2024-10-23 21:08:53,558 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:08:53" (1/1) ... [2024-10-23 21:08:53,754 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4761 [2024-10-23 21:08:53,754 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-23 21:08:53,755 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-23 21:08:53,755 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-23 21:08:53,755 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-23 21:08:53,764 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:08:53" (1/1) ... [2024-10-23 21:08:53,764 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:08:53" (1/1) ... [2024-10-23 21:08:53,796 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:08:53" (1/1) ... [2024-10-23 21:08:53,956 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-23 21:08:53,957 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:08:53" (1/1) ... [2024-10-23 21:08:53,957 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:08:53" (1/1) ... [2024-10-23 21:08:54,042 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:08:53" (1/1) ... [2024-10-23 21:08:54,064 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:08:53" (1/1) ... [2024-10-23 21:08:54,103 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:08:53" (1/1) ... [2024-10-23 21:08:54,125 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:08:53" (1/1) ... [2024-10-23 21:08:54,189 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-23 21:08:54,191 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-23 21:08:54,191 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-23 21:08:54,191 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-23 21:08:54,192 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:08:53" (1/1) ... [2024-10-23 21:08:54,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 21:08:54,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:08:54,225 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-23 21:08:54,236 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-23 21:08:54,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-23 21:08:54,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-23 21:08:54,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-23 21:08:54,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-23 21:08:54,423 INFO L238 CfgBuilder]: Building ICFG [2024-10-23 21:08:54,424 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-23 21:08:57,493 INFO L? ?]: Removed 702 outVars from TransFormulas that were not future-live. [2024-10-23 21:08:57,493 INFO L287 CfgBuilder]: Performing block encoding [2024-10-23 21:08:57,542 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-23 21:08:57,543 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-23 21:08:57,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:08:57 BoogieIcfgContainer [2024-10-23 21:08:57,544 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-23 21:08:57,545 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-23 21:08:57,545 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-23 21:08:57,548 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-23 21:08:57,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:08:52" (1/3) ... [2024-10-23 21:08:57,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ee32a12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:08:57, skipping insertion in model container [2024-10-23 21:08:57,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:08:53" (2/3) ... [2024-10-23 21:08:57,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ee32a12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:08:57, skipping insertion in model container [2024-10-23 21:08:57,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:08:57" (3/3) ... [2024-10-23 21:08:57,550 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label49.c [2024-10-23 21:08:57,562 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-23 21:08:57,562 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-23 21:08:57,631 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-23 21:08:57,635 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;@5b95bce9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-23 21:08:57,635 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-23 21:08:57,642 INFO L276 IsEmpty]: Start isEmpty. Operand has 756 states, 754 states have (on average 1.993368700265252) internal successors, (1503), 755 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:08:57,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-23 21:08:57,647 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:08:57,648 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:08:57,649 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:08:57,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:08:57,653 INFO L85 PathProgramCache]: Analyzing trace with hash -723835733, now seen corresponding path program 1 times [2024-10-23 21:08:57,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:08:57,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378200056] [2024-10-23 21:08:57,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:08:57,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:08:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:08:57,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:08:57,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:08:57,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378200056] [2024-10-23 21:08:57,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378200056] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:08:57,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:08:57,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:08:57,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733655977] [2024-10-23 21:08:57,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:08:57,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-23 21:08:57,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:08:57,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-23 21:08:57,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 21:08:57,800 INFO L87 Difference]: Start difference. First operand has 756 states, 754 states have (on average 1.993368700265252) internal successors, (1503), 755 states have internal predecessors, (1503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:08:57,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:08:57,871 INFO L93 Difference]: Finished difference Result 1511 states and 3005 transitions. [2024-10-23 21:08:57,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-23 21:08:57,874 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 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 41 [2024-10-23 21:08:57,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:08:57,885 INFO L225 Difference]: With dead ends: 1511 [2024-10-23 21:08:57,885 INFO L226 Difference]: Without dead ends: 754 [2024-10-23 21:08:57,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 21:08:57,893 INFO L432 NwaCegarLoop]: 1438 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1438 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-23 21:08:57,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1438 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-23 21:08:57,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2024-10-23 21:08:57,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2024-10-23 21:08:57,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 753 states have (on average 1.9096945551128819) internal successors, (1438), 753 states have internal predecessors, (1438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:08:57,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1438 transitions. [2024-10-23 21:08:57,955 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1438 transitions. Word has length 41 [2024-10-23 21:08:57,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:08:57,955 INFO L471 AbstractCegarLoop]: Abstraction has 754 states and 1438 transitions. [2024-10-23 21:08:57,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:08:57,955 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1438 transitions. [2024-10-23 21:08:57,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-23 21:08:57,956 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:08:57,956 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:08:57,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-23 21:08:57,957 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:08:57,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:08:57,957 INFO L85 PathProgramCache]: Analyzing trace with hash 974315993, now seen corresponding path program 1 times [2024-10-23 21:08:57,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:08:57,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24705388] [2024-10-23 21:08:57,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:08:57,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:08:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:08:58,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:08:58,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:08:58,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24705388] [2024-10-23 21:08:58,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24705388] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:08:58,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:08:58,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:08:58,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547221617] [2024-10-23 21:08:58,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:08:58,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:08:58,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:08:58,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:08:58,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:08:58,203 INFO L87 Difference]: Start difference. First operand 754 states and 1438 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:02,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:09:02,544 INFO L93 Difference]: Finished difference Result 3017 states and 5755 transitions. [2024-10-23 21:09:02,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-23 21:09:02,545 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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 41 [2024-10-23 21:09:02,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:09:02,553 INFO L225 Difference]: With dead ends: 3017 [2024-10-23 21:09:02,553 INFO L226 Difference]: Without dead ends: 2264 [2024-10-23 21:09:02,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-23 21:09:02,555 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 2359 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 3613 mSolverCounterSat, 1596 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2359 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 5209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1596 IncrementalHoareTripleChecker+Valid, 3613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-10-23 21:09:02,555 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2359 Valid, 197 Invalid, 5209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1596 Valid, 3613 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-10-23 21:09:02,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2264 states. [2024-10-23 21:09:02,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2264 to 2256. [2024-10-23 21:09:02,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2256 states, 2255 states have (on average 1.5352549889135254) internal successors, (3462), 2255 states have internal predecessors, (3462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:02,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2256 states to 2256 states and 3462 transitions. [2024-10-23 21:09:02,626 INFO L78 Accepts]: Start accepts. Automaton has 2256 states and 3462 transitions. Word has length 41 [2024-10-23 21:09:02,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:09:02,626 INFO L471 AbstractCegarLoop]: Abstraction has 2256 states and 3462 transitions. [2024-10-23 21:09:02,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:02,627 INFO L276 IsEmpty]: Start isEmpty. Operand 2256 states and 3462 transitions. [2024-10-23 21:09:02,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-10-23 21:09:02,632 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:09:02,632 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2024-10-23 21:09:02,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-23 21:09:02,632 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:09:02,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:09:02,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1431565314, now seen corresponding path program 1 times [2024-10-23 21:09:02,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:09:02,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146525929] [2024-10-23 21:09:02,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:09:02,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:09:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:09:02,955 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-23 21:09:02,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:09:02,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146525929] [2024-10-23 21:09:02,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146525929] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:09:02,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:09:02,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:09:02,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896464118] [2024-10-23 21:09:02,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:09:02,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:09:02,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:09:02,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:09:02,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:09:02,960 INFO L87 Difference]: Start difference. First operand 2256 states and 3462 transitions. Second operand has 4 states, 4 states have (on average 44.0) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:05,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:09:05,932 INFO L93 Difference]: Finished difference Result 6052 states and 9664 transitions. [2024-10-23 21:09:05,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:09:05,933 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 3 states have internal predecessors, (176), 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 181 [2024-10-23 21:09:05,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:09:05,942 INFO L225 Difference]: With dead ends: 6052 [2024-10-23 21:09:05,943 INFO L226 Difference]: Without dead ends: 3760 [2024-10-23 21:09:05,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:09:05,947 INFO L432 NwaCegarLoop]: 693 mSDtfsCounter, 704 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 3110 mSolverCounterSat, 728 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 3838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 728 IncrementalHoareTripleChecker+Valid, 3110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-23 21:09:05,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [704 Valid, 707 Invalid, 3838 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [728 Valid, 3110 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-23 21:09:05,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3760 states. [2024-10-23 21:09:05,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3760 to 3758. [2024-10-23 21:09:05,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3758 states, 3757 states have (on average 1.3412297045515038) internal successors, (5039), 3757 states have internal predecessors, (5039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:05,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3758 states to 3758 states and 5039 transitions. [2024-10-23 21:09:05,999 INFO L78 Accepts]: Start accepts. Automaton has 3758 states and 5039 transitions. Word has length 181 [2024-10-23 21:09:06,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:09:06,001 INFO L471 AbstractCegarLoop]: Abstraction has 3758 states and 5039 transitions. [2024-10-23 21:09:06,001 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.0) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:06,001 INFO L276 IsEmpty]: Start isEmpty. Operand 3758 states and 5039 transitions. [2024-10-23 21:09:06,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-10-23 21:09:06,003 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:09:06,004 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2024-10-23 21:09:06,004 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-23 21:09:06,004 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:09:06,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:09:06,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1092518451, now seen corresponding path program 1 times [2024-10-23 21:09:06,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:09:06,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203035311] [2024-10-23 21:09:06,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:09:06,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:09:06,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:09:06,209 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-10-23 21:09:06,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:09:06,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203035311] [2024-10-23 21:09:06,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203035311] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:09:06,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:09:06,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:09:06,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061887120] [2024-10-23 21:09:06,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:09:06,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:09:06,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:09:06,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:09:06,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:09:06,213 INFO L87 Difference]: Start difference. First operand 3758 states and 5039 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 2 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:08,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:09:08,258 INFO L93 Difference]: Finished difference Result 10519 states and 14358 transitions. [2024-10-23 21:09:08,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:09:08,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 2 states have internal predecessors, (184), 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 251 [2024-10-23 21:09:08,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:09:08,273 INFO L225 Difference]: With dead ends: 10519 [2024-10-23 21:09:08,273 INFO L226 Difference]: Without dead ends: 6762 [2024-10-23 21:09:08,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:09:08,278 INFO L432 NwaCegarLoop]: 478 mSDtfsCounter, 669 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1990 mSolverCounterSat, 845 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 484 SdHoareTripleChecker+Invalid, 2835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 845 IncrementalHoareTripleChecker+Valid, 1990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-23 21:09:08,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [669 Valid, 484 Invalid, 2835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [845 Valid, 1990 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-23 21:09:08,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6762 states. [2024-10-23 21:09:08,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6762 to 6762. [2024-10-23 21:09:08,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6762 states, 6761 states have (on average 1.2517379085934033) internal successors, (8463), 6761 states have internal predecessors, (8463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:08,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6762 states to 6762 states and 8463 transitions. [2024-10-23 21:09:08,356 INFO L78 Accepts]: Start accepts. Automaton has 6762 states and 8463 transitions. Word has length 251 [2024-10-23 21:09:08,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:09:08,358 INFO L471 AbstractCegarLoop]: Abstraction has 6762 states and 8463 transitions. [2024-10-23 21:09:08,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 2 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:08,358 INFO L276 IsEmpty]: Start isEmpty. Operand 6762 states and 8463 transitions. [2024-10-23 21:09:08,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-10-23 21:09:08,360 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:09:08,360 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-23 21:09:08,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-23 21:09:08,361 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:09:08,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:09:08,361 INFO L85 PathProgramCache]: Analyzing trace with hash -764084374, now seen corresponding path program 1 times [2024-10-23 21:09:08,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:09:08,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990256951] [2024-10-23 21:09:08,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:09:08,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:09:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:09:08,686 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 79 proven. 54 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-10-23 21:09:08,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:09:08,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990256951] [2024-10-23 21:09:08,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990256951] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 21:09:08,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013956968] [2024-10-23 21:09:08,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:09:08,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:09:08,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:09:08,692 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-23 21:09:08,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-23 21:09:08,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:09:08,795 INFO L255 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-23 21:09:08,802 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 21:09:08,920 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:09:08,923 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 21:09:08,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013956968] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:09:08,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-23 21:09:08,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-10-23 21:09:08,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158220412] [2024-10-23 21:09:08,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:09:08,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:09:08,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:09:08,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:09:08,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-23 21:09:08,925 INFO L87 Difference]: Start difference. First operand 6762 states and 8463 transitions. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:11,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:09:11,075 INFO L93 Difference]: Finished difference Result 16527 states and 21455 transitions. [2024-10-23 21:09:11,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:09:11,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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 264 [2024-10-23 21:09:11,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:09:11,098 INFO L225 Difference]: With dead ends: 16527 [2024-10-23 21:09:11,098 INFO L226 Difference]: Without dead ends: 9766 [2024-10-23 21:09:11,105 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-23 21:09:11,106 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 907 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2073 mSolverCounterSat, 703 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 2776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 703 IncrementalHoareTripleChecker+Valid, 2073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-23 21:09:11,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [907 Valid, 307 Invalid, 2776 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [703 Valid, 2073 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-23 21:09:11,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9766 states. [2024-10-23 21:09:11,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9766 to 9766. [2024-10-23 21:09:11,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9766 states, 9765 states have (on average 1.2463901689708141) internal successors, (12171), 9765 states have internal predecessors, (12171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:11,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9766 states to 9766 states and 12171 transitions. [2024-10-23 21:09:11,227 INFO L78 Accepts]: Start accepts. Automaton has 9766 states and 12171 transitions. Word has length 264 [2024-10-23 21:09:11,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:09:11,227 INFO L471 AbstractCegarLoop]: Abstraction has 9766 states and 12171 transitions. [2024-10-23 21:09:11,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:11,228 INFO L276 IsEmpty]: Start isEmpty. Operand 9766 states and 12171 transitions. [2024-10-23 21:09:11,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2024-10-23 21:09:11,229 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:09:11,230 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-23 21:09:11,243 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-23 21:09:11,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:09:11,434 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:09:11,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:09:11,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1094891650, now seen corresponding path program 1 times [2024-10-23 21:09:11,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:09:11,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814225740] [2024-10-23 21:09:11,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:09:11,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:09:11,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:09:11,641 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-10-23 21:09:11,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:09:11,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814225740] [2024-10-23 21:09:11,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814225740] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:09:11,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:09:11,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:09:11,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331101584] [2024-10-23 21:09:11,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:09:11,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:09:11,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:09:11,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:09:11,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:09:11,643 INFO L87 Difference]: Start difference. First operand 9766 states and 12171 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:13,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:09:13,756 INFO L93 Difference]: Finished difference Result 23286 states and 29349 transitions. [2024-10-23 21:09:13,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:09:13,756 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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 281 [2024-10-23 21:09:13,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:09:13,779 INFO L225 Difference]: With dead ends: 23286 [2024-10-23 21:09:13,779 INFO L226 Difference]: Without dead ends: 13521 [2024-10-23 21:09:13,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:09:13,786 INFO L432 NwaCegarLoop]: 1206 mSDtfsCounter, 733 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2255 mSolverCounterSat, 525 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 2780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 525 IncrementalHoareTripleChecker+Valid, 2255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-10-23 21:09:13,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 1213 Invalid, 2780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [525 Valid, 2255 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-10-23 21:09:13,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13521 states. [2024-10-23 21:09:13,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13521 to 13521. [2024-10-23 21:09:13,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13521 states, 13520 states have (on average 1.1744082840236687) internal successors, (15878), 13520 states have internal predecessors, (15878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:13,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13521 states to 13521 states and 15878 transitions. [2024-10-23 21:09:13,919 INFO L78 Accepts]: Start accepts. Automaton has 13521 states and 15878 transitions. Word has length 281 [2024-10-23 21:09:13,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:09:13,920 INFO L471 AbstractCegarLoop]: Abstraction has 13521 states and 15878 transitions. [2024-10-23 21:09:13,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:13,920 INFO L276 IsEmpty]: Start isEmpty. Operand 13521 states and 15878 transitions. [2024-10-23 21:09:13,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-10-23 21:09:13,923 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:09:13,923 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2024-10-23 21:09:13,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-23 21:09:13,924 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:09:13,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:09:13,924 INFO L85 PathProgramCache]: Analyzing trace with hash 161053235, now seen corresponding path program 1 times [2024-10-23 21:09:13,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:09:13,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180258279] [2024-10-23 21:09:13,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:09:13,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:09:13,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:09:14,125 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 332 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-23 21:09:14,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:09:14,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180258279] [2024-10-23 21:09:14,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180258279] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:09:14,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:09:14,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:09:14,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173104233] [2024-10-23 21:09:14,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:09:14,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:09:14,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:09:14,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:09:14,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:09:14,129 INFO L87 Difference]: Start difference. First operand 13521 states and 15878 transitions. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:16,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:09:16,377 INFO L93 Difference]: Finished difference Result 37555 states and 44584 transitions. [2024-10-23 21:09:16,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:09:16,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 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 368 [2024-10-23 21:09:16,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:09:16,407 INFO L225 Difference]: With dead ends: 37555 [2024-10-23 21:09:16,408 INFO L226 Difference]: Without dead ends: 24035 [2024-10-23 21:09:16,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:09:16,419 INFO L432 NwaCegarLoop]: 1213 mSDtfsCounter, 640 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2608 mSolverCounterSat, 397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 3005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 397 IncrementalHoareTripleChecker+Valid, 2608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-23 21:09:16,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 1219 Invalid, 3005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [397 Valid, 2608 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-23 21:09:16,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24035 states. [2024-10-23 21:09:16,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24035 to 24035. [2024-10-23 21:09:16,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24035 states, 24034 states have (on average 1.162852625447283) internal successors, (27948), 24034 states have internal predecessors, (27948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:16,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24035 states to 24035 states and 27948 transitions. [2024-10-23 21:09:16,635 INFO L78 Accepts]: Start accepts. Automaton has 24035 states and 27948 transitions. Word has length 368 [2024-10-23 21:09:16,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:09:16,635 INFO L471 AbstractCegarLoop]: Abstraction has 24035 states and 27948 transitions. [2024-10-23 21:09:16,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:16,636 INFO L276 IsEmpty]: Start isEmpty. Operand 24035 states and 27948 transitions. [2024-10-23 21:09:16,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2024-10-23 21:09:16,640 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:09:16,641 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2024-10-23 21:09:16,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-23 21:09:16,641 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:09:16,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:09:16,642 INFO L85 PathProgramCache]: Analyzing trace with hash 2107744169, now seen corresponding path program 1 times [2024-10-23 21:09:16,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:09:16,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874634831] [2024-10-23 21:09:16,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:09:16,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:09:16,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:09:16,871 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-10-23 21:09:16,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:09:16,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874634831] [2024-10-23 21:09:16,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874634831] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:09:16,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:09:16,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:09:16,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972830372] [2024-10-23 21:09:16,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:09:16,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:09:16,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:09:16,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:09:16,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:09:16,874 INFO L87 Difference]: Start difference. First operand 24035 states and 27948 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:18,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:09:18,777 INFO L93 Difference]: Finished difference Result 54828 states and 63464 transitions. [2024-10-23 21:09:18,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:09:18,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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 372 [2024-10-23 21:09:18,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:09:18,811 INFO L225 Difference]: With dead ends: 54828 [2024-10-23 21:09:18,811 INFO L226 Difference]: Without dead ends: 26288 [2024-10-23 21:09:18,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:09:18,836 INFO L432 NwaCegarLoop]: 1377 mSDtfsCounter, 725 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1998 mSolverCounterSat, 398 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 1384 SdHoareTripleChecker+Invalid, 2396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 398 IncrementalHoareTripleChecker+Valid, 1998 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-23 21:09:18,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [725 Valid, 1384 Invalid, 2396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [398 Valid, 1998 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-23 21:09:18,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26288 states. [2024-10-23 21:09:19,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26288 to 26288. [2024-10-23 21:09:19,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26288 states, 26287 states have (on average 1.1219994674173546) internal successors, (29494), 26287 states have internal predecessors, (29494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:19,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26288 states to 26288 states and 29494 transitions. [2024-10-23 21:09:19,072 INFO L78 Accepts]: Start accepts. Automaton has 26288 states and 29494 transitions. Word has length 372 [2024-10-23 21:09:19,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:09:19,073 INFO L471 AbstractCegarLoop]: Abstraction has 26288 states and 29494 transitions. [2024-10-23 21:09:19,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:19,073 INFO L276 IsEmpty]: Start isEmpty. Operand 26288 states and 29494 transitions. [2024-10-23 21:09:19,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2024-10-23 21:09:19,078 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:09:19,078 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:09:19,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-23 21:09:19,078 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:09:19,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:09:19,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1929430052, now seen corresponding path program 1 times [2024-10-23 21:09:19,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:09:19,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353197600] [2024-10-23 21:09:19,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:09:19,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:09:19,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:09:19,559 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 119 proven. 108 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2024-10-23 21:09:19,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:09:19,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353197600] [2024-10-23 21:09:19,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353197600] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 21:09:19,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595078533] [2024-10-23 21:09:19,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:09:19,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:09:19,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:09:19,563 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-23 21:09:19,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-23 21:09:19,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:09:19,688 INFO L255 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-23 21:09:19,694 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 21:09:20,396 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 208 proven. 108 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-10-23 21:09:20,396 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-23 21:09:21,006 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 208 proven. 108 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-10-23 21:09:21,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595078533] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-23 21:09:21,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-23 21:09:21,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 5 [2024-10-23 21:09:21,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809814459] [2024-10-23 21:09:21,007 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-23 21:09:21,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-23 21:09:21,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:09:21,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-23 21:09:21,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-23 21:09:21,010 INFO L87 Difference]: Start difference. First operand 26288 states and 29494 transitions. Second operand has 6 states, 6 states have (on average 63.333333333333336) internal successors, (380), 5 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:26,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:09:26,333 INFO L93 Difference]: Finished difference Result 70599 states and 78980 transitions. [2024-10-23 21:09:26,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-23 21:09:26,334 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 63.333333333333336) internal successors, (380), 5 states have internal predecessors, (380), 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 381 [2024-10-23 21:09:26,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:09:26,377 INFO L225 Difference]: With dead ends: 70599 [2024-10-23 21:09:26,377 INFO L226 Difference]: Without dead ends: 44312 [2024-10-23 21:09:26,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 766 GetRequests, 759 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-10-23 21:09:26,389 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 4100 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 7461 mSolverCounterSat, 999 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4100 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 8460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 999 IncrementalHoareTripleChecker+Valid, 7461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-10-23 21:09:26,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4100 Valid, 124 Invalid, 8460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [999 Valid, 7461 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-10-23 21:09:26,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44312 states. [2024-10-23 21:09:26,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44312 to 38304. [2024-10-23 21:09:26,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38304 states, 38303 states have (on average 1.098451818395426) internal successors, (42074), 38303 states have internal predecessors, (42074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:26,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38304 states to 38304 states and 42074 transitions. [2024-10-23 21:09:26,722 INFO L78 Accepts]: Start accepts. Automaton has 38304 states and 42074 transitions. Word has length 381 [2024-10-23 21:09:26,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:09:26,723 INFO L471 AbstractCegarLoop]: Abstraction has 38304 states and 42074 transitions. [2024-10-23 21:09:26,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 63.333333333333336) internal successors, (380), 5 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:26,723 INFO L276 IsEmpty]: Start isEmpty. Operand 38304 states and 42074 transitions. [2024-10-23 21:09:26,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-10-23 21:09:26,728 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:09:26,728 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:09:26,740 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-23 21:09:26,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-10-23 21:09:26,933 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:09:26,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:09:26,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1593261345, now seen corresponding path program 1 times [2024-10-23 21:09:26,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:09:26,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183277407] [2024-10-23 21:09:26,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:09:26,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:09:26,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:09:27,151 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-10-23 21:09:27,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:09:27,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183277407] [2024-10-23 21:09:27,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183277407] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:09:27,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:09:27,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:09:27,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899558432] [2024-10-23 21:09:27,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:09:27,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:09:27,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:09:27,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:09:27,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:09:27,152 INFO L87 Difference]: Start difference. First operand 38304 states and 42074 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:29,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:09:29,048 INFO L93 Difference]: Finished difference Result 84117 states and 92853 transitions. [2024-10-23 21:09:29,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:09:29,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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 391 [2024-10-23 21:09:29,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:09:29,090 INFO L225 Difference]: With dead ends: 84117 [2024-10-23 21:09:29,091 INFO L226 Difference]: Without dead ends: 45814 [2024-10-23 21:09:29,112 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:09:29,113 INFO L432 NwaCegarLoop]: 1156 mSDtfsCounter, 727 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2069 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 1163 SdHoareTripleChecker+Invalid, 2421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 2069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:09:29,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [727 Valid, 1163 Invalid, 2421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 2069 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-23 21:09:29,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45814 states. [2024-10-23 21:09:29,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45814 to 45814. [2024-10-23 21:09:29,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45814 states, 45813 states have (on average 1.0801519219435531) internal successors, (49485), 45813 states have internal predecessors, (49485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:29,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45814 states to 45814 states and 49485 transitions. [2024-10-23 21:09:29,477 INFO L78 Accepts]: Start accepts. Automaton has 45814 states and 49485 transitions. Word has length 391 [2024-10-23 21:09:29,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:09:29,478 INFO L471 AbstractCegarLoop]: Abstraction has 45814 states and 49485 transitions. [2024-10-23 21:09:29,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:29,478 INFO L276 IsEmpty]: Start isEmpty. Operand 45814 states and 49485 transitions. [2024-10-23 21:09:29,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2024-10-23 21:09:29,482 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:09:29,482 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:09:29,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-23 21:09:29,482 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:09:29,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:09:29,483 INFO L85 PathProgramCache]: Analyzing trace with hash 510783958, now seen corresponding path program 1 times [2024-10-23 21:09:29,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:09:29,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042569260] [2024-10-23 21:09:29,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:09:29,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:09:29,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:09:29,650 INFO L134 CoverageAnalysis]: Checked inductivity of 584 backedges. 466 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-10-23 21:09:29,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:09:29,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042569260] [2024-10-23 21:09:29,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042569260] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:09:29,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:09:29,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:09:29,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376970185] [2024-10-23 21:09:29,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:09:29,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:09:29,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:09:29,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:09:29,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:09:29,653 INFO L87 Difference]: Start difference. First operand 45814 states and 49485 transitions. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:31,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:09:31,807 INFO L93 Difference]: Finished difference Result 91627 states and 98969 transitions. [2024-10-23 21:09:31,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:09:31,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 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 402 [2024-10-23 21:09:31,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:09:31,849 INFO L225 Difference]: With dead ends: 91627 [2024-10-23 21:09:31,849 INFO L226 Difference]: Without dead ends: 45814 [2024-10-23 21:09:31,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:09:31,875 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 719 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2157 mSolverCounterSat, 464 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 719 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 2621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 464 IncrementalHoareTripleChecker+Valid, 2157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-23 21:09:31,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [719 Valid, 203 Invalid, 2621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [464 Valid, 2157 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-23 21:09:31,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45814 states. [2024-10-23 21:09:32,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45814 to 45063. [2024-10-23 21:09:32,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45063 states, 45062 states have (on average 1.0755403666060095) internal successors, (48466), 45062 states have internal predecessors, (48466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:32,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45063 states to 45063 states and 48466 transitions. [2024-10-23 21:09:32,195 INFO L78 Accepts]: Start accepts. Automaton has 45063 states and 48466 transitions. Word has length 402 [2024-10-23 21:09:32,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:09:32,195 INFO L471 AbstractCegarLoop]: Abstraction has 45063 states and 48466 transitions. [2024-10-23 21:09:32,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:32,196 INFO L276 IsEmpty]: Start isEmpty. Operand 45063 states and 48466 transitions. [2024-10-23 21:09:32,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2024-10-23 21:09:32,200 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:09:32,201 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:09:32,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-23 21:09:32,201 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:09:32,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:09:32,201 INFO L85 PathProgramCache]: Analyzing trace with hash -141687168, now seen corresponding path program 1 times [2024-10-23 21:09:32,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:09:32,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438969488] [2024-10-23 21:09:32,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:09:32,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:09:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:09:32,577 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 160 proven. 230 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-23 21:09:32,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:09:32,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438969488] [2024-10-23 21:09:32,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438969488] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 21:09:32,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [235178527] [2024-10-23 21:09:32,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:09:32,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:09:32,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:09:32,580 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-23 21:09:32,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-23 21:09:32,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:09:32,686 INFO L255 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-23 21:09:32,690 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 21:09:32,806 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 349 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-10-23 21:09:32,806 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-23 21:09:32,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [235178527] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:09:32,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-23 21:09:32,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-10-23 21:09:32,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343688838] [2024-10-23 21:09:32,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:09:32,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:09:32,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:09:32,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:09:32,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-23 21:09:32,808 INFO L87 Difference]: Start difference. First operand 45063 states and 48466 transitions. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:34,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:09:34,961 INFO L93 Difference]: Finished difference Result 115659 states and 124501 transitions. [2024-10-23 21:09:34,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:09:34,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 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 420 [2024-10-23 21:09:34,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:09:35,036 INFO L225 Difference]: With dead ends: 115659 [2024-10-23 21:09:35,036 INFO L226 Difference]: Without dead ends: 70597 [2024-10-23 21:09:35,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-23 21:09:35,070 INFO L432 NwaCegarLoop]: 948 mSDtfsCounter, 661 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2037 mSolverCounterSat, 668 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 2705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 668 IncrementalHoareTripleChecker+Valid, 2037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-23 21:09:35,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 955 Invalid, 2705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [668 Valid, 2037 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-23 21:09:35,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70597 states. [2024-10-23 21:09:35,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70597 to 65340. [2024-10-23 21:09:35,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65340 states, 65339 states have (on average 1.074519046817368) internal successors, (70208), 65339 states have internal predecessors, (70208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:35,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65340 states to 65340 states and 70208 transitions. [2024-10-23 21:09:35,698 INFO L78 Accepts]: Start accepts. Automaton has 65340 states and 70208 transitions. Word has length 420 [2024-10-23 21:09:35,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:09:35,698 INFO L471 AbstractCegarLoop]: Abstraction has 65340 states and 70208 transitions. [2024-10-23 21:09:35,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:35,699 INFO L276 IsEmpty]: Start isEmpty. Operand 65340 states and 70208 transitions. [2024-10-23 21:09:35,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2024-10-23 21:09:35,706 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:09:35,706 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-10-23 21:09:35,720 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-23 21:09:35,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:09:35,909 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:09:35,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:09:35,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1064218226, now seen corresponding path program 1 times [2024-10-23 21:09:35,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:09:35,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346655375] [2024-10-23 21:09:35,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:09:35,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:09:35,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:09:36,113 INFO L134 CoverageAnalysis]: Checked inductivity of 732 backedges. 607 proven. 0 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-10-23 21:09:36,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:09:36,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [346655375] [2024-10-23 21:09:36,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [346655375] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:09:36,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:09:36,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:09:36,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481405762] [2024-10-23 21:09:36,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:09:36,116 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:09:36,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:09:36,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:09:36,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:09:36,117 INFO L87 Difference]: Start difference. First operand 65340 states and 70208 transitions. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:38,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:09:38,178 INFO L93 Difference]: Finished difference Result 132932 states and 142722 transitions. [2024-10-23 21:09:38,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:09:38,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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 488 [2024-10-23 21:09:38,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:09:38,243 INFO L225 Difference]: With dead ends: 132932 [2024-10-23 21:09:38,243 INFO L226 Difference]: Without dead ends: 66842 [2024-10-23 21:09:38,273 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:09:38,274 INFO L432 NwaCegarLoop]: 1088 mSDtfsCounter, 703 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2031 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 1095 SdHoareTripleChecker+Invalid, 2323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 2031 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-23 21:09:38,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 1095 Invalid, 2323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 2031 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-23 21:09:38,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66842 states. [2024-10-23 21:09:39,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66842 to 63087. [2024-10-23 21:09:39,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63087 states, 63086 states have (on average 1.0616460070380116) internal successors, (66975), 63086 states have internal predecessors, (66975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:39,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63087 states to 63087 states and 66975 transitions. [2024-10-23 21:09:39,153 INFO L78 Accepts]: Start accepts. Automaton has 63087 states and 66975 transitions. Word has length 488 [2024-10-23 21:09:39,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:09:39,154 INFO L471 AbstractCegarLoop]: Abstraction has 63087 states and 66975 transitions. [2024-10-23 21:09:39,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:39,154 INFO L276 IsEmpty]: Start isEmpty. Operand 63087 states and 66975 transitions. [2024-10-23 21:09:39,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2024-10-23 21:09:39,164 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:09:39,164 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-10-23 21:09:39,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-23 21:09:39,165 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:09:39,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:09:39,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1576166434, now seen corresponding path program 1 times [2024-10-23 21:09:39,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:09:39,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950624110] [2024-10-23 21:09:39,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:09:39,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:09:39,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:09:39,442 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 633 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2024-10-23 21:09:39,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:09:39,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950624110] [2024-10-23 21:09:39,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950624110] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:09:39,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:09:39,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:09:39,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904463009] [2024-10-23 21:09:39,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:09:39,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:09:39,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:09:39,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:09:39,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:09:39,445 INFO L87 Difference]: Start difference. First operand 63087 states and 66975 transitions. Second operand has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:41,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:09:41,581 INFO L93 Difference]: Finished difference Result 129177 states and 137012 transitions. [2024-10-23 21:09:41,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:09:41,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 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 497 [2024-10-23 21:09:41,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:09:41,647 INFO L225 Difference]: With dead ends: 129177 [2024-10-23 21:09:41,647 INFO L226 Difference]: Without dead ends: 64589 [2024-10-23 21:09:41,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:09:41,668 INFO L432 NwaCegarLoop]: 945 mSDtfsCounter, 766 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1994 mSolverCounterSat, 397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 951 SdHoareTripleChecker+Invalid, 2391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 397 IncrementalHoareTripleChecker+Valid, 1994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:09:41,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 951 Invalid, 2391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [397 Valid, 1994 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-23 21:09:41,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64589 states. [2024-10-23 21:09:42,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64589 to 60834. [2024-10-23 21:09:42,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60834 states, 60833 states have (on average 1.0484934164022817) internal successors, (63783), 60833 states have internal predecessors, (63783), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:42,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60834 states to 60834 states and 63783 transitions. [2024-10-23 21:09:42,339 INFO L78 Accepts]: Start accepts. Automaton has 60834 states and 63783 transitions. Word has length 497 [2024-10-23 21:09:42,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:09:42,340 INFO L471 AbstractCegarLoop]: Abstraction has 60834 states and 63783 transitions. [2024-10-23 21:09:42,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:42,340 INFO L276 IsEmpty]: Start isEmpty. Operand 60834 states and 63783 transitions. [2024-10-23 21:09:42,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2024-10-23 21:09:42,350 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:09:42,350 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-10-23 21:09:42,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-23 21:09:42,350 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:09:42,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:09:42,351 INFO L85 PathProgramCache]: Analyzing trace with hash -258387067, now seen corresponding path program 1 times [2024-10-23 21:09:42,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:09:42,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885071934] [2024-10-23 21:09:42,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:09:42,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:09:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:09:42,613 INFO L134 CoverageAnalysis]: Checked inductivity of 802 backedges. 650 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-10-23 21:09:42,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:09:42,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885071934] [2024-10-23 21:09:42,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885071934] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:09:42,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:09:42,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:09:42,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778395265] [2024-10-23 21:09:42,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:09:42,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:09:42,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:09:42,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:09:42,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:09:42,616 INFO L87 Difference]: Start difference. First operand 60834 states and 63783 transitions. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:44,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:09:44,931 INFO L93 Difference]: Finished difference Result 147201 states and 154373 transitions. [2024-10-23 21:09:44,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:09:44,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 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 515 [2024-10-23 21:09:44,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:09:45,023 INFO L225 Difference]: With dead ends: 147201 [2024-10-23 21:09:45,023 INFO L226 Difference]: Without dead ends: 87119 [2024-10-23 21:09:45,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:09:45,040 INFO L432 NwaCegarLoop]: 1189 mSDtfsCounter, 658 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2122 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 1196 SdHoareTripleChecker+Invalid, 2480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 2122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-23 21:09:45,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 1196 Invalid, 2480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 2122 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-23 21:09:45,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87119 states. [2024-10-23 21:09:45,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87119 to 83364. [2024-10-23 21:09:45,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83364 states, 83363 states have (on average 1.0419610618619772) internal successors, (86861), 83363 states have internal predecessors, (86861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:45,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83364 states to 83364 states and 86861 transitions. [2024-10-23 21:09:45,776 INFO L78 Accepts]: Start accepts. Automaton has 83364 states and 86861 transitions. Word has length 515 [2024-10-23 21:09:45,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:09:45,777 INFO L471 AbstractCegarLoop]: Abstraction has 83364 states and 86861 transitions. [2024-10-23 21:09:45,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:45,777 INFO L276 IsEmpty]: Start isEmpty. Operand 83364 states and 86861 transitions. [2024-10-23 21:09:45,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 686 [2024-10-23 21:09:45,792 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:09:45,793 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:09:45,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-23 21:09:45,793 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:09:45,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:09:45,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1003566488, now seen corresponding path program 1 times [2024-10-23 21:09:45,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:09:45,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923040989] [2024-10-23 21:09:45,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:09:45,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:09:45,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:09:46,276 INFO L134 CoverageAnalysis]: Checked inductivity of 1203 backedges. 573 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2024-10-23 21:09:46,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:09:46,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923040989] [2024-10-23 21:09:46,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923040989] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:09:46,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:09:46,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:09:46,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43910111] [2024-10-23 21:09:46,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:09:46,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:09:46,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:09:46,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:09:46,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:09:46,281 INFO L87 Difference]: Start difference. First operand 83364 states and 86861 transitions. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:48,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:09:48,290 INFO L93 Difference]: Finished difference Result 167478 states and 174544 transitions. [2024-10-23 21:09:48,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:09:48,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 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 685 [2024-10-23 21:09:48,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:09:48,367 INFO L225 Difference]: With dead ends: 167478 [2024-10-23 21:09:48,368 INFO L226 Difference]: Without dead ends: 84866 [2024-10-23 21:09:48,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:09:48,418 INFO L432 NwaCegarLoop]: 1006 mSDtfsCounter, 757 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2006 mSolverCounterSat, 244 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 2250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 244 IncrementalHoareTripleChecker+Valid, 2006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:09:48,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 1013 Invalid, 2250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [244 Valid, 2006 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-23 21:09:48,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84866 states. [2024-10-23 21:09:49,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84866 to 82613. [2024-10-23 21:09:49,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82613 states, 82612 states have (on average 1.0370406236382124) internal successors, (85672), 82612 states have internal predecessors, (85672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:49,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82613 states to 82613 states and 85672 transitions. [2024-10-23 21:09:49,350 INFO L78 Accepts]: Start accepts. Automaton has 82613 states and 85672 transitions. Word has length 685 [2024-10-23 21:09:49,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:09:49,351 INFO L471 AbstractCegarLoop]: Abstraction has 82613 states and 85672 transitions. [2024-10-23 21:09:49,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:49,351 INFO L276 IsEmpty]: Start isEmpty. Operand 82613 states and 85672 transitions. [2024-10-23 21:09:49,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 816 [2024-10-23 21:09:49,376 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:09:49,376 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:09:49,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-23 21:09:49,377 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:09:49,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:09:49,377 INFO L85 PathProgramCache]: Analyzing trace with hash -1467979846, now seen corresponding path program 1 times [2024-10-23 21:09:49,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:09:49,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283063311] [2024-10-23 21:09:49,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:09:49,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:09:49,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:09:49,984 INFO L134 CoverageAnalysis]: Checked inductivity of 1299 backedges. 199 proven. 0 refuted. 0 times theorem prover too weak. 1100 trivial. 0 not checked. [2024-10-23 21:09:49,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:09:49,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283063311] [2024-10-23 21:09:49,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283063311] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:09:49,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:09:49,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:09:49,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490046573] [2024-10-23 21:09:49,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:09:49,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:09:49,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:09:49,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:09:49,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:09:49,987 INFO L87 Difference]: Start difference. First operand 82613 states and 85672 transitions. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:51,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:09:51,931 INFO L93 Difference]: Finished difference Result 164472 states and 170586 transitions. [2024-10-23 21:09:51,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:09:51,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 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 815 [2024-10-23 21:09:51,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:09:51,933 INFO L225 Difference]: With dead ends: 164472 [2024-10-23 21:09:51,933 INFO L226 Difference]: Without dead ends: 0 [2024-10-23 21:09:51,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:09:51,982 INFO L432 NwaCegarLoop]: 1188 mSDtfsCounter, 749 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1928 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 2201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 1928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-23 21:09:51,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [749 Valid, 1194 Invalid, 2201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 1928 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-23 21:09:51,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-23 21:09:51,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-23 21:09:51,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:51,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-23 21:09:51,983 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 815 [2024-10-23 21:09:51,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:09:51,983 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-23 21:09:51,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:09:51,983 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-23 21:09:51,984 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-23 21:09:51,986 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-23 21:09:51,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-23 21:09:51,988 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:09:51,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-23 21:09:53,708 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-23 21:09:53,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:09:53 BoogieIcfgContainer [2024-10-23 21:09:53,727 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-23 21:09:53,727 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-23 21:09:53,727 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-23 21:09:53,727 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-23 21:09:53,728 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:08:57" (3/4) ... [2024-10-23 21:09:53,729 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-23 21:09:53,763 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-10-23 21:09:53,767 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-23 21:09:53,771 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-23 21:09:53,774 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-23 21:09:54,014 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-23 21:09:54,014 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-23 21:09:54,014 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-23 21:09:54,015 INFO L158 Benchmark]: Toolchain (without parser) took 61690.98ms. Allocated memory was 184.5MB in the beginning and 7.0GB in the end (delta: 6.8GB). Free memory was 113.0MB in the beginning and 5.4GB in the end (delta: -5.3GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2024-10-23 21:09:54,015 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 184.5MB. Free memory is still 149.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-23 21:09:54,016 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1186.02ms. Allocated memory was 184.5MB in the beginning and 270.5MB in the end (delta: 86.0MB). Free memory was 112.7MB in the beginning and 129.2MB in the end (delta: -16.6MB). Peak memory consumption was 91.4MB. Max. memory is 16.1GB. [2024-10-23 21:09:54,016 INFO L158 Benchmark]: Boogie Procedure Inliner took 241.80ms. Allocated memory is still 270.5MB. Free memory was 129.2MB in the beginning and 148.9MB in the end (delta: -19.7MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. [2024-10-23 21:09:54,016 INFO L158 Benchmark]: Boogie Preprocessor took 435.38ms. Allocated memory is still 270.5MB. Free memory was 148.9MB in the beginning and 120.6MB in the end (delta: 28.3MB). Peak memory consumption was 88.1MB. Max. memory is 16.1GB. [2024-10-23 21:09:54,017 INFO L158 Benchmark]: RCFGBuilder took 3352.65ms. Allocated memory was 270.5MB in the beginning and 541.1MB in the end (delta: 270.5MB). Free memory was 120.6MB in the beginning and 310.6MB in the end (delta: -190.0MB). Peak memory consumption was 196.9MB. Max. memory is 16.1GB. [2024-10-23 21:09:54,017 INFO L158 Benchmark]: TraceAbstraction took 56181.57ms. Allocated memory was 541.1MB in the beginning and 7.0GB in the end (delta: 6.5GB). Free memory was 309.6MB in the beginning and 5.4GB in the end (delta: -5.1GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2024-10-23 21:09:54,019 INFO L158 Benchmark]: Witness Printer took 287.29ms. Allocated memory is still 7.0GB. Free memory was 5.4GB in the beginning and 5.4GB in the end (delta: 69.2MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2024-10-23 21:09:54,020 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 184.5MB. Free memory is still 149.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1186.02ms. Allocated memory was 184.5MB in the beginning and 270.5MB in the end (delta: 86.0MB). Free memory was 112.7MB in the beginning and 129.2MB in the end (delta: -16.6MB). Peak memory consumption was 91.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 241.80ms. Allocated memory is still 270.5MB. Free memory was 129.2MB in the beginning and 148.9MB in the end (delta: -19.7MB). Peak memory consumption was 48.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 435.38ms. Allocated memory is still 270.5MB. Free memory was 148.9MB in the beginning and 120.6MB in the end (delta: 28.3MB). Peak memory consumption was 88.1MB. Max. memory is 16.1GB. * RCFGBuilder took 3352.65ms. Allocated memory was 270.5MB in the beginning and 541.1MB in the end (delta: 270.5MB). Free memory was 120.6MB in the beginning and 310.6MB in the end (delta: -190.0MB). Peak memory consumption was 196.9MB. Max. memory is 16.1GB. * TraceAbstraction took 56181.57ms. Allocated memory was 541.1MB in the beginning and 7.0GB in the end (delta: 6.5GB). Free memory was 309.6MB in the beginning and 5.4GB in the end (delta: -5.1GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. * Witness Printer took 287.29ms. Allocated memory is still 7.0GB. Free memory was 5.4GB in the beginning and 5.4GB in the end (delta: 69.2MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 148]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 756 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 54.4s, OverallIterations: 17, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 40.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16577 SdHoareTripleChecker+Valid, 36.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16577 mSDsluCounter, 14843 SdHoareTripleChecker+Invalid, 30.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 153 mSDsCounter, 9239 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41454 IncrementalHoareTripleChecker+Invalid, 50693 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9239 mSolverCounterUnsat, 14690 mSDtfsCounter, 41454 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1496 GetRequests, 1467 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=83364occurred in iteration=15, InterpolantAutomatonStates: 57, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.8s AutomataMinimizationTime, 17 MinimizatonAttempts, 25544 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 7458 NumberOfCodeBlocks, 7458 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 7818 ConstructedInterpolants, 0 QuantifiedInterpolants, 21291 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1423 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 21 InterpolantComputations, 16 PerfectInterpolantSequences, 8778/9386 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 4828]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((a24 <= 14) && (a5 <= 4)) && (a24 != 13)) && (190 <= a2)) || ((0 <= ((long long) a17 + 107)) && (a5 <= 4))) || (((a2 <= 189) && (7 == a5)) && (a24 != 13))) || (((a2 <= 189) && (5 == a5)) && (a24 != 13))) || (((0 <= ((long long) a17 + 107)) && (a24 == 13)) && (5 == a5))) || (((a7 <= 13) && (a2 <= 189)) && (7 == a5))) || (((a24 <= 14) && (5 == a5)) && (a24 != 13))) || ((((14 <= a7) && (a24 == 13)) && (5 == a5)) && (190 <= a2))) || (((a7 <= 13) && (a5 <= 4)) && (a24 == 13))) || (((a5 == 4) && (a7 == 13)) && (190 <= a2))) || (((0 <= ((long long) a17 + 107)) && (a2 <= 189)) && (7 == a5))) || (((a5 <= 4) && (a2 <= 189)) && (a24 == 13))) || ((((a2 <= 170) && (a5 == 4)) && (a7 == 13)) && (((long long) a17 + 124) <= 0))) || ((a2 <= 189) && (6 == a5))) || ((a24 == 13) && (6 == a5))) || (((a7 <= 13) && (a2 <= 189)) && (5 == a5))) || (((a7 <= 13) && (5 == a5)) && (a24 != 13))) || (3 == a5)) || ((((14 <= a7) && (a5 <= 4)) && (a24 != 13)) && (190 <= a2))) RESULT: Ultimate proved your program to be correct! [2024-10-23 21:09:54,046 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE