./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sorting_bubblesort_ground-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sorting_bubblesort_ground-1.i -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 68585835b92043bfb2f3c62590e96ff685993869f8a251aecd9fe4c8aaea0e1e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 14:26:15,952 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 14:26:16,022 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 14:26:16,029 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 14:26:16,029 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 14:26:16,056 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 14:26:16,059 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 14:26:16,059 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 14:26:16,060 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 14:26:16,062 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 14:26:16,062 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 14:26:16,063 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 14:26:16,063 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 14:26:16,065 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 14:26:16,065 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 14:26:16,066 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 14:26:16,066 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 14:26:16,066 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 14:26:16,066 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 14:26:16,067 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 14:26:16,067 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 14:26:16,069 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 14:26:16,070 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 14:26:16,070 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 14:26:16,070 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 14:26:16,071 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 14:26:16,071 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 14:26:16,071 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 14:26:16,072 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 14:26:16,072 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 14:26:16,072 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 14:26:16,072 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 14:26:16,072 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 14:26:16,073 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 14:26:16,073 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 14:26:16,073 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 14:26:16,074 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 14:26:16,074 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 14:26:16,075 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 14:26:16,075 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 14:26:16,075 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 14:26:16,076 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 14:26:16,076 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68585835b92043bfb2f3c62590e96ff685993869f8a251aecd9fe4c8aaea0e1e [2024-10-12 14:26:16,330 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 14:26:16,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 14:26:16,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 14:26:16,359 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 14:26:16,359 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 14:26:16,360 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sorting_bubblesort_ground-1.i [2024-10-12 14:26:17,826 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 14:26:18,010 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 14:26:18,010 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sorting_bubblesort_ground-1.i [2024-10-12 14:26:18,018 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7de4bd827/02550c8097ef4974b2d43863d9be448c/FLAG68c960385 [2024-10-12 14:26:18,031 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7de4bd827/02550c8097ef4974b2d43863d9be448c [2024-10-12 14:26:18,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 14:26:18,036 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 14:26:18,038 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 14:26:18,038 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 14:26:18,044 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 14:26:18,046 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:26:18" (1/1) ... [2024-10-12 14:26:18,047 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bf6e6e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:18, skipping insertion in model container [2024-10-12 14:26:18,047 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:26:18" (1/1) ... [2024-10-12 14:26:18,069 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 14:26:18,260 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/array-examples/sorting_bubblesort_ground-1.i[820,833] [2024-10-12 14:26:18,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 14:26:18,279 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 14:26:18,293 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/array-examples/sorting_bubblesort_ground-1.i[820,833] [2024-10-12 14:26:18,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 14:26:18,313 INFO L204 MainTranslator]: Completed translation [2024-10-12 14:26:18,313 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:18 WrapperNode [2024-10-12 14:26:18,313 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 14:26:18,314 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 14:26:18,314 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 14:26:18,315 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 14:26:18,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:18" (1/1) ... [2024-10-12 14:26:18,326 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:18" (1/1) ... [2024-10-12 14:26:18,342 INFO L138 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 85 [2024-10-12 14:26:18,342 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 14:26:18,343 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 14:26:18,343 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 14:26:18,343 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 14:26:18,350 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:18" (1/1) ... [2024-10-12 14:26:18,350 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:18" (1/1) ... [2024-10-12 14:26:18,352 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:18" (1/1) ... [2024-10-12 14:26:18,363 INFO L175 MemorySlicer]: Split 11 memory accesses to 2 slices as follows [2, 9]. 82 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-10-12 14:26:18,364 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:18" (1/1) ... [2024-10-12 14:26:18,364 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:18" (1/1) ... [2024-10-12 14:26:18,368 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:18" (1/1) ... [2024-10-12 14:26:18,371 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:18" (1/1) ... [2024-10-12 14:26:18,372 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:18" (1/1) ... [2024-10-12 14:26:18,373 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:18" (1/1) ... [2024-10-12 14:26:18,374 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 14:26:18,375 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 14:26:18,375 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 14:26:18,375 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 14:26:18,377 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:18" (1/1) ... [2024-10-12 14:26:18,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 14:26:18,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 14:26:18,410 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 14:26:18,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 14:26:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 14:26:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 14:26:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-12 14:26:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-12 14:26:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-12 14:26:18,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-12 14:26:18,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 14:26:18,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 14:26:18,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-12 14:26:18,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-12 14:26:18,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-12 14:26:18,519 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 14:26:18,521 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 14:26:18,661 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-10-12 14:26:18,662 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 14:26:18,687 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 14:26:18,687 INFO L314 CfgBuilder]: Removed 5 assume(true) statements. [2024-10-12 14:26:18,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:26:18 BoogieIcfgContainer [2024-10-12 14:26:18,688 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 14:26:18,690 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 14:26:18,691 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 14:26:18,694 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 14:26:18,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 02:26:18" (1/3) ... [2024-10-12 14:26:18,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c727cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:26:18, skipping insertion in model container [2024-10-12 14:26:18,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:18" (2/3) ... [2024-10-12 14:26:18,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c727cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:26:18, skipping insertion in model container [2024-10-12 14:26:18,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:26:18" (3/3) ... [2024-10-12 14:26:18,696 INFO L112 eAbstractionObserver]: Analyzing ICFG sorting_bubblesort_ground-1.i [2024-10-12 14:26:18,713 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 14:26:18,713 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 14:26:18,767 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 14:26:18,775 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;@2ae613a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 14:26:18,775 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 14:26:18,779 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.8125) internal successors, (29), 17 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:18,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-12 14:26:18,783 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 14:26:18,783 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 14:26:18,784 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 14:26:18,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 14:26:18,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1612111142, now seen corresponding path program 1 times [2024-10-12 14:26:18,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 14:26:18,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486141012] [2024-10-12 14:26:18,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 14:26:18,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 14:26:18,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 14:26:18,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 14:26:18,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 14:26:18,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486141012] [2024-10-12 14:26:18,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486141012] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 14:26:18,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 14:26:18,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 14:26:18,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355793388] [2024-10-12 14:26:18,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 14:26:18,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 14:26:18,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 14:26:19,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 14:26:19,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 14:26:19,015 INFO L87 Difference]: Start difference. First operand has 18 states, 16 states have (on average 1.8125) internal successors, (29), 17 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:19,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 14:26:19,056 INFO L93 Difference]: Finished difference Result 35 states and 57 transitions. [2024-10-12 14:26:19,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 14:26:19,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 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 9 [2024-10-12 14:26:19,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 14:26:19,067 INFO L225 Difference]: With dead ends: 35 [2024-10-12 14:26:19,067 INFO L226 Difference]: Without dead ends: 17 [2024-10-12 14:26:19,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 14:26:19,075 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 14:26:19,076 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 14:26:19,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-10-12 14:26:19,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-10-12 14:26:19,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.375) internal successors, (22), 16 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:19,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2024-10-12 14:26:19,105 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 22 transitions. Word has length 9 [2024-10-12 14:26:19,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 14:26:19,106 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 22 transitions. [2024-10-12 14:26:19,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:19,107 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2024-10-12 14:26:19,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-12 14:26:19,108 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 14:26:19,108 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 14:26:19,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 14:26:19,109 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 14:26:19,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 14:26:19,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1371244853, now seen corresponding path program 1 times [2024-10-12 14:26:19,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 14:26:19,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627250828] [2024-10-12 14:26:19,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 14:26:19,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 14:26:19,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 14:26:19,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 14:26:19,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 14:26:19,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627250828] [2024-10-12 14:26:19,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627250828] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 14:26:19,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99295734] [2024-10-12 14:26:19,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 14:26:19,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 14:26:19,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 14:26:19,302 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 14:26:19,304 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 14:26:19,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 14:26:19,379 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 14:26:19,384 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 14:26:19,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-12 14:26:19,410 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 14:26:19,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99295734] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 14:26:19,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 14:26:19,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-10-12 14:26:19,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303725003] [2024-10-12 14:26:19,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 14:26:19,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 14:26:19,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 14:26:19,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 14:26:19,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 14:26:19,414 INFO L87 Difference]: Start difference. First operand 17 states and 22 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:19,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 14:26:19,433 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2024-10-12 14:26:19,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 14:26:19,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2024-10-12 14:26:19,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 14:26:19,435 INFO L225 Difference]: With dead ends: 30 [2024-10-12 14:26:19,435 INFO L226 Difference]: Without dead ends: 22 [2024-10-12 14:26:19,436 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 14:26:19,437 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 5 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 14:26:19,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 36 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 14:26:19,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-10-12 14:26:19,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-10-12 14:26:19,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.380952380952381) internal successors, (29), 21 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:19,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 29 transitions. [2024-10-12 14:26:19,444 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 29 transitions. Word has length 10 [2024-10-12 14:26:19,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 14:26:19,444 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 29 transitions. [2024-10-12 14:26:19,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:19,445 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2024-10-12 14:26:19,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-12 14:26:19,445 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 14:26:19,445 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 14:26:19,462 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-12 14:26:19,649 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 14:26:19,650 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 14:26:19,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 14:26:19,651 INFO L85 PathProgramCache]: Analyzing trace with hash 810154115, now seen corresponding path program 1 times [2024-10-12 14:26:19,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 14:26:19,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143260329] [2024-10-12 14:26:19,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 14:26:19,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 14:26:19,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 14:26:19,728 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-12 14:26:19,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 14:26:19,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143260329] [2024-10-12 14:26:19,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143260329] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 14:26:19,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822965657] [2024-10-12 14:26:19,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 14:26:19,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 14:26:19,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 14:26:19,732 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) [2024-10-12 14:26:19,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-12 14:26:19,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 14:26:19,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 14:26:19,788 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 14:26:19,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-12 14:26:19,798 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 14:26:19,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822965657] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 14:26:19,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 14:26:19,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2024-10-12 14:26:19,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989754152] [2024-10-12 14:26:19,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 14:26:19,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 14:26:19,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 14:26:19,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 14:26:19,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 14:26:19,801 INFO L87 Difference]: Start difference. First operand 22 states and 29 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:19,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 14:26:19,831 INFO L93 Difference]: Finished difference Result 44 states and 59 transitions. [2024-10-12 14:26:19,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 14:26:19,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2024-10-12 14:26:19,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 14:26:19,832 INFO L225 Difference]: With dead ends: 44 [2024-10-12 14:26:19,832 INFO L226 Difference]: Without dead ends: 26 [2024-10-12 14:26:19,832 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-12 14:26:19,833 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 3 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 14:26:19,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 27 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 14:26:19,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-10-12 14:26:19,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2024-10-12 14:26:19,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 22 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:19,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2024-10-12 14:26:19,839 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 13 [2024-10-12 14:26:19,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 14:26:19,839 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2024-10-12 14:26:19,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:19,839 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2024-10-12 14:26:19,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-12 14:26:19,840 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 14:26:19,840 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 14:26:19,852 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-12 14:26:20,040 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,SelfDestructingSolverStorable2 [2024-10-12 14:26:20,041 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 14:26:20,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 14:26:20,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1552667997, now seen corresponding path program 1 times [2024-10-12 14:26:20,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 14:26:20,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655453145] [2024-10-12 14:26:20,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 14:26:20,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 14:26:20,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 14:26:20,140 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 14:26:20,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 14:26:20,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655453145] [2024-10-12 14:26:20,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655453145] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 14:26:20,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520793487] [2024-10-12 14:26:20,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 14:26:20,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 14:26:20,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 14:26:20,145 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) [2024-10-12 14:26:20,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-12 14:26:20,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 14:26:20,212 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 14:26:20,213 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 14:26:20,244 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 14:26:20,246 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 14:26:20,275 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 14:26:20,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520793487] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 14:26:20,275 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 14:26:20,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-10-12 14:26:20,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292734811] [2024-10-12 14:26:20,276 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 14:26:20,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 14:26:20,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 14:26:20,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 14:26:20,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-12 14:26:20,277 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:20,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 14:26:20,305 INFO L93 Difference]: Finished difference Result 46 states and 62 transitions. [2024-10-12 14:26:20,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 14:26:20,306 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 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 16 [2024-10-12 14:26:20,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 14:26:20,306 INFO L225 Difference]: With dead ends: 46 [2024-10-12 14:26:20,306 INFO L226 Difference]: Without dead ends: 26 [2024-10-12 14:26:20,307 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-12 14:26:20,307 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 14:26:20,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 14:26:20,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-10-12 14:26:20,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-10-12 14:26:20,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:20,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2024-10-12 14:26:20,316 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 16 [2024-10-12 14:26:20,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 14:26:20,316 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2024-10-12 14:26:20,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:20,317 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2024-10-12 14:26:20,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-12 14:26:20,317 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 14:26:20,317 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 14:26:20,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-12 14:26:20,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 14:26:20,523 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 14:26:20,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 14:26:20,523 INFO L85 PathProgramCache]: Analyzing trace with hash -190909954, now seen corresponding path program 2 times [2024-10-12 14:26:20,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 14:26:20,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694854517] [2024-10-12 14:26:20,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 14:26:20,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 14:26:20,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 14:26:20,635 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-12 14:26:20,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 14:26:20,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694854517] [2024-10-12 14:26:20,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694854517] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 14:26:20,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451350578] [2024-10-12 14:26:20,636 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-12 14:26:20,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 14:26:20,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 14:26:20,638 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 14:26:20,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-12 14:26:20,709 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-12 14:26:20,709 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 14:26:20,710 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-12 14:26:20,711 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 14:26:20,762 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 14:26:20,762 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 14:26:20,841 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 14:26:20,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451350578] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 14:26:20,842 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 14:26:20,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 14 [2024-10-12 14:26:20,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199989371] [2024-10-12 14:26:20,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 14:26:20,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-12 14:26:20,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 14:26:20,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-12 14:26:20,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-10-12 14:26:20,844 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 14 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:20,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 14:26:20,906 INFO L93 Difference]: Finished difference Result 61 states and 85 transitions. [2024-10-12 14:26:20,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-12 14:26:20,907 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 14 states have internal predecessors, (34), 0 states have call successors, (0), 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 19 [2024-10-12 14:26:20,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 14:26:20,908 INFO L225 Difference]: With dead ends: 61 [2024-10-12 14:26:20,908 INFO L226 Difference]: Without dead ends: 41 [2024-10-12 14:26:20,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-10-12 14:26:20,910 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 4 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 14:26:20,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 65 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 14:26:20,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-10-12 14:26:20,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 37. [2024-10-12 14:26:20,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.25) internal successors, (45), 36 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:20,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2024-10-12 14:26:20,920 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 19 [2024-10-12 14:26:20,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 14:26:20,921 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2024-10-12 14:26:20,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.4285714285714284) internal successors, (34), 14 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:20,921 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2024-10-12 14:26:20,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-12 14:26:20,921 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 14:26:20,922 INFO L215 NwaCegarLoop]: trace histogram [10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 14:26:20,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-12 14:26:21,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 14:26:21,122 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 14:26:21,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 14:26:21,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1522098536, now seen corresponding path program 3 times [2024-10-12 14:26:21,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 14:26:21,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600993685] [2024-10-12 14:26:21,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 14:26:21,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 14:26:21,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 14:26:21,240 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-12 14:26:21,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 14:26:21,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600993685] [2024-10-12 14:26:21,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600993685] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 14:26:21,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056695070] [2024-10-12 14:26:21,241 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-12 14:26:21,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 14:26:21,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 14:26:21,243 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 14:26:21,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-12 14:26:21,318 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-10-12 14:26:21,318 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 14:26:21,320 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 14:26:21,321 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 14:26:21,344 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-12 14:26:21,344 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 14:26:21,380 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-12 14:26:21,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056695070] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 14:26:21,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 14:26:21,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-10-12 14:26:21,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405630200] [2024-10-12 14:26:21,381 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 14:26:21,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 14:26:21,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 14:26:21,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 14:26:21,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-10-12 14:26:21,383 INFO L87 Difference]: Start difference. First operand 37 states and 45 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:21,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 14:26:21,430 INFO L93 Difference]: Finished difference Result 85 states and 116 transitions. [2024-10-12 14:26:21,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-12 14:26:21,431 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 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 28 [2024-10-12 14:26:21,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 14:26:21,432 INFO L225 Difference]: With dead ends: 85 [2024-10-12 14:26:21,432 INFO L226 Difference]: Without dead ends: 61 [2024-10-12 14:26:21,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-10-12 14:26:21,433 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 14:26:21,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 43 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 14:26:21,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-10-12 14:26:21,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-10-12 14:26:21,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 1.2833333333333334) internal successors, (77), 60 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:21,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 77 transitions. [2024-10-12 14:26:21,448 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 77 transitions. Word has length 28 [2024-10-12 14:26:21,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 14:26:21,449 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 77 transitions. [2024-10-12 14:26:21,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:21,461 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 77 transitions. [2024-10-12 14:26:21,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-12 14:26:21,462 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 14:26:21,462 INFO L215 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 14:26:21,478 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-12 14:26:21,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 14:26:21,663 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 14:26:21,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 14:26:21,664 INFO L85 PathProgramCache]: Analyzing trace with hash -302265880, now seen corresponding path program 4 times [2024-10-12 14:26:21,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 14:26:21,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718596202] [2024-10-12 14:26:21,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 14:26:21,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 14:26:21,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 14:26:21,909 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-10-12 14:26:21,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 14:26:21,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718596202] [2024-10-12 14:26:21,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718596202] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 14:26:21,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95881196] [2024-10-12 14:26:21,910 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-12 14:26:21,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 14:26:21,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 14:26:21,912 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 14:26:21,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-12 14:26:21,998 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-12 14:26:21,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 14:26:22,000 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-12 14:26:22,001 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 14:26:22,128 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 1 proven. 51 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-12 14:26:22,128 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 14:26:22,301 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 1 proven. 51 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-10-12 14:26:22,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95881196] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 14:26:22,302 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 14:26:22,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-10-12 14:26:22,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730889583] [2024-10-12 14:26:22,302 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 14:26:22,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-12 14:26:22,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 14:26:22,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-12 14:26:22,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=505, Unknown=0, NotChecked=0, Total=702 [2024-10-12 14:26:22,305 INFO L87 Difference]: Start difference. First operand 61 states and 77 transitions. Second operand has 27 states, 27 states have (on average 2.5555555555555554) internal successors, (69), 27 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:22,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 14:26:22,398 INFO L93 Difference]: Finished difference Result 159 states and 223 transitions. [2024-10-12 14:26:22,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-12 14:26:22,398 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.5555555555555554) internal successors, (69), 27 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2024-10-12 14:26:22,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 14:26:22,399 INFO L225 Difference]: With dead ends: 159 [2024-10-12 14:26:22,400 INFO L226 Difference]: Without dead ends: 110 [2024-10-12 14:26:22,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=197, Invalid=505, Unknown=0, NotChecked=0, Total=702 [2024-10-12 14:26:22,401 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 35 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 14:26:22,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 85 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 14:26:22,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-10-12 14:26:22,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2024-10-12 14:26:22,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 1.3027522935779816) internal successors, (142), 109 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:22,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 142 transitions. [2024-10-12 14:26:22,411 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 142 transitions. Word has length 40 [2024-10-12 14:26:22,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 14:26:22,411 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 142 transitions. [2024-10-12 14:26:22,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.5555555555555554) internal successors, (69), 27 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:22,411 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 142 transitions. [2024-10-12 14:26:22,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-12 14:26:22,413 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 14:26:22,413 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 14:26:22,433 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-12 14:26:22,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 14:26:22,614 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 14:26:22,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 14:26:22,615 INFO L85 PathProgramCache]: Analyzing trace with hash 299109283, now seen corresponding path program 5 times [2024-10-12 14:26:22,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 14:26:22,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495563560] [2024-10-12 14:26:22,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 14:26:22,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 14:26:22,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 14:26:22,936 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-10-12 14:26:22,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 14:26:22,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495563560] [2024-10-12 14:26:22,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495563560] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 14:26:22,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210935305] [2024-10-12 14:26:22,937 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-12 14:26:22,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 14:26:22,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 14:26:22,939 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 14:26:22,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-12 14:26:23,079 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 15 check-sat command(s) [2024-10-12 14:26:23,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 14:26:23,082 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-12 14:26:23,085 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 14:26:23,367 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 1 proven. 287 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-10-12 14:26:23,367 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 14:26:23,847 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 1 proven. 287 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-10-12 14:26:23,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210935305] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 14:26:23,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 14:26:23,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17, 17] total 44 [2024-10-12 14:26:23,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574564152] [2024-10-12 14:26:23,848 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 14:26:23,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-10-12 14:26:23,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 14:26:23,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-10-12 14:26:23,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=586, Invalid=1306, Unknown=0, NotChecked=0, Total=1892 [2024-10-12 14:26:23,857 INFO L87 Difference]: Start difference. First operand 110 states and 142 transitions. Second operand has 44 states, 44 states have (on average 2.6818181818181817) internal successors, (118), 44 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:24,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 14:26:24,075 INFO L93 Difference]: Finished difference Result 304 states and 432 transitions. [2024-10-12 14:26:24,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-10-12 14:26:24,075 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 2.6818181818181817) internal successors, (118), 44 states have internal predecessors, (118), 0 states have call successors, (0), 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 65 [2024-10-12 14:26:24,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 14:26:24,077 INFO L225 Difference]: With dead ends: 304 [2024-10-12 14:26:24,077 INFO L226 Difference]: Without dead ends: 207 [2024-10-12 14:26:24,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=586, Invalid=1306, Unknown=0, NotChecked=0, Total=1892 [2024-10-12 14:26:24,079 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 87 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 14:26:24,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 175 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 14:26:24,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-10-12 14:26:24,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2024-10-12 14:26:24,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 206 states have (on average 1.3155339805825244) internal successors, (271), 206 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:24,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 271 transitions. [2024-10-12 14:26:24,094 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 271 transitions. Word has length 65 [2024-10-12 14:26:24,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 14:26:24,095 INFO L471 AbstractCegarLoop]: Abstraction has 207 states and 271 transitions. [2024-10-12 14:26:24,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 2.6818181818181817) internal successors, (118), 44 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:24,095 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 271 transitions. [2024-10-12 14:26:24,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-10-12 14:26:24,102 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 14:26:24,102 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 14:26:24,119 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-12 14:26:24,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 14:26:24,303 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 14:26:24,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 14:26:24,304 INFO L85 PathProgramCache]: Analyzing trace with hash -683125688, now seen corresponding path program 6 times [2024-10-12 14:26:24,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 14:26:24,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439803932] [2024-10-12 14:26:24,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 14:26:24,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 14:26:24,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 14:26:24,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1414 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 1336 trivial. 0 not checked. [2024-10-12 14:26:24,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 14:26:24,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439803932] [2024-10-12 14:26:24,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439803932] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 14:26:24,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859219008] [2024-10-12 14:26:24,648 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-12 14:26:24,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 14:26:24,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 14:26:24,650 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 14:26:24,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-12 14:26:24,748 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-10-12 14:26:24,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 14:26:24,749 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-12 14:26:24,754 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 14:26:25,334 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 14:26:25,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2024-10-12 14:26:25,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1414 backedges. 1 proven. 59 refuted. 0 times theorem prover too weak. 1354 trivial. 0 not checked. [2024-10-12 14:26:25,353 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 14:26:25,646 INFO L349 Elim1Store]: treesize reduction 13, result has 60.6 percent of original size [2024-10-12 14:26:25,647 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 36 treesize of output 28 [2024-10-12 14:26:25,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1414 backedges. 30 proven. 30 refuted. 0 times theorem prover too weak. 1354 trivial. 0 not checked. [2024-10-12 14:26:25,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859219008] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 14:26:25,694 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 14:26:25,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 8, 8] total 27 [2024-10-12 14:26:25,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407338674] [2024-10-12 14:26:25,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 14:26:25,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-10-12 14:26:25,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 14:26:25,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-10-12 14:26:25,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=553, Unknown=0, NotChecked=0, Total=702 [2024-10-12 14:26:25,697 INFO L87 Difference]: Start difference. First operand 207 states and 271 transitions. Second operand has 27 states, 27 states have (on average 2.2222222222222223) internal successors, (60), 27 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:26,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 14:26:26,144 INFO L93 Difference]: Finished difference Result 413 states and 545 transitions. [2024-10-12 14:26:26,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-12 14:26:26,145 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.2222222222222223) internal successors, (60), 27 states have internal predecessors, (60), 0 states have call successors, (0), 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 114 [2024-10-12 14:26:26,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 14:26:26,146 INFO L225 Difference]: With dead ends: 413 [2024-10-12 14:26:26,146 INFO L226 Difference]: Without dead ends: 220 [2024-10-12 14:26:26,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 214 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=394, Invalid=1498, Unknown=0, NotChecked=0, Total=1892 [2024-10-12 14:26:26,148 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 59 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 14:26:26,148 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 168 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 14:26:26,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-10-12 14:26:26,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 211. [2024-10-12 14:26:26,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 1.3095238095238095) internal successors, (275), 210 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:26,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 275 transitions. [2024-10-12 14:26:26,166 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 275 transitions. Word has length 114 [2024-10-12 14:26:26,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 14:26:26,166 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 275 transitions. [2024-10-12 14:26:26,166 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.2222222222222223) internal successors, (60), 27 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:26,166 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 275 transitions. [2024-10-12 14:26:26,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-10-12 14:26:26,168 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 14:26:26,168 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 13, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 14:26:26,185 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-12 14:26:26,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-10-12 14:26:26,373 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 14:26:26,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 14:26:26,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1663067282, now seen corresponding path program 1 times [2024-10-12 14:26:26,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 14:26:26,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324512390] [2024-10-12 14:26:26,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 14:26:26,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 14:26:26,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 14:26:26,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1429 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2024-10-12 14:26:26,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 14:26:26,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324512390] [2024-10-12 14:26:26,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324512390] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 14:26:26,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92339392] [2024-10-12 14:26:26,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 14:26:26,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 14:26:26,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 14:26:26,799 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 14:26:26,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-12 14:26:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 14:26:26,932 INFO L255 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-12 14:26:26,935 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 14:26:26,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1429 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2024-10-12 14:26:26,974 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 14:26:27,281 INFO L134 CoverageAnalysis]: Checked inductivity of 1429 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2024-10-12 14:26:27,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92339392] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 14:26:27,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 14:26:27,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 30 [2024-10-12 14:26:27,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52618116] [2024-10-12 14:26:27,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 14:26:27,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-10-12 14:26:27,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 14:26:27,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-10-12 14:26:27,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2024-10-12 14:26:27,284 INFO L87 Difference]: Start difference. First operand 211 states and 275 transitions. Second operand has 31 states, 31 states have (on average 1.5161290322580645) internal successors, (47), 30 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:27,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 14:26:27,323 INFO L93 Difference]: Finished difference Result 422 states and 564 transitions. [2024-10-12 14:26:27,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-10-12 14:26:27,324 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 1.5161290322580645) internal successors, (47), 30 states have internal predecessors, (47), 0 states have call successors, (0), 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 118 [2024-10-12 14:26:27,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 14:26:27,325 INFO L225 Difference]: With dead ends: 422 [2024-10-12 14:26:27,325 INFO L226 Difference]: Without dead ends: 226 [2024-10-12 14:26:27,326 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2024-10-12 14:26:27,327 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 14:26:27,327 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 14:26:27,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-10-12 14:26:27,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2024-10-12 14:26:27,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 1.288888888888889) internal successors, (290), 225 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:27,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 290 transitions. [2024-10-12 14:26:27,341 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 290 transitions. Word has length 118 [2024-10-12 14:26:27,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 14:26:27,341 INFO L471 AbstractCegarLoop]: Abstraction has 226 states and 290 transitions. [2024-10-12 14:26:27,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 1.5161290322580645) internal successors, (47), 30 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:27,342 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 290 transitions. [2024-10-12 14:26:27,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-10-12 14:26:27,343 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 14:26:27,343 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 30, 28, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 14:26:27,361 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-12 14:26:27,547 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-12 14:26:27,548 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 14:26:27,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 14:26:27,548 INFO L85 PathProgramCache]: Analyzing trace with hash 2096992841, now seen corresponding path program 2 times [2024-10-12 14:26:27,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 14:26:27,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998696821] [2024-10-12 14:26:27,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 14:26:27,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 14:26:27,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 14:26:28,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1744 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2024-10-12 14:26:28,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 14:26:28,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998696821] [2024-10-12 14:26:28,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998696821] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 14:26:28,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1875932013] [2024-10-12 14:26:28,574 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-12 14:26:28,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 14:26:28,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 14:26:28,576 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 14:26:28,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-12 14:26:28,734 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-12 14:26:28,734 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 14:26:28,737 INFO L255 TraceCheckSpWp]: Trace formula consists of 564 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-10-12 14:26:28,740 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 14:26:28,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1744 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2024-10-12 14:26:28,805 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 14:26:29,744 INFO L134 CoverageAnalysis]: Checked inductivity of 1744 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2024-10-12 14:26:29,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1875932013] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 14:26:29,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 14:26:29,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 30] total 60 [2024-10-12 14:26:29,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760308683] [2024-10-12 14:26:29,745 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 14:26:29,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2024-10-12 14:26:29,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 14:26:29,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2024-10-12 14:26:29,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2024-10-12 14:26:29,748 INFO L87 Difference]: Start difference. First operand 226 states and 290 transitions. Second operand has 61 states, 61 states have (on average 1.2622950819672132) internal successors, (77), 60 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:29,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 14:26:29,821 INFO L93 Difference]: Finished difference Result 452 states and 609 transitions. [2024-10-12 14:26:29,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2024-10-12 14:26:29,821 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 61 states have (on average 1.2622950819672132) internal successors, (77), 60 states have internal predecessors, (77), 0 states have call successors, (0), 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 133 [2024-10-12 14:26:29,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 14:26:29,823 INFO L225 Difference]: With dead ends: 452 [2024-10-12 14:26:29,823 INFO L226 Difference]: Without dead ends: 256 [2024-10-12 14:26:29,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2024-10-12 14:26:29,825 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 14:26:29,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 14:26:29,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-10-12 14:26:29,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2024-10-12 14:26:29,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 255 states have (on average 1.2549019607843137) internal successors, (320), 255 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:29,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 320 transitions. [2024-10-12 14:26:29,838 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 320 transitions. Word has length 133 [2024-10-12 14:26:29,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 14:26:29,838 INFO L471 AbstractCegarLoop]: Abstraction has 256 states and 320 transitions. [2024-10-12 14:26:29,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 1.2622950819672132) internal successors, (77), 60 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:29,838 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 320 transitions. [2024-10-12 14:26:29,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-10-12 14:26:29,840 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 14:26:29,840 INFO L215 NwaCegarLoop]: trace histogram [58, 30, 30, 30, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 14:26:29,859 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-12 14:26:30,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-12 14:26:30,041 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 14:26:30,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 14:26:30,042 INFO L85 PathProgramCache]: Analyzing trace with hash 86798249, now seen corresponding path program 3 times [2024-10-12 14:26:30,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 14:26:30,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840653632] [2024-10-12 14:26:30,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 14:26:30,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 14:26:30,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 14:26:32,804 INFO L134 CoverageAnalysis]: Checked inductivity of 3049 backedges. 0 proven. 1711 refuted. 0 times theorem prover too weak. 1338 trivial. 0 not checked. [2024-10-12 14:26:32,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 14:26:32,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840653632] [2024-10-12 14:26:32,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840653632] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 14:26:32,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286986073] [2024-10-12 14:26:32,805 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-12 14:26:32,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 14:26:32,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 14:26:32,807 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 14:26:32,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-12 14:26:33,008 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-10-12 14:26:33,009 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 14:26:33,012 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-12 14:26:33,015 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 14:26:33,110 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-10-12 14:26:33,885 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 14:26:33,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 13 [2024-10-12 14:26:33,924 INFO L134 CoverageAnalysis]: Checked inductivity of 3049 backedges. 1 proven. 147 refuted. 0 times theorem prover too weak. 2901 trivial. 0 not checked. [2024-10-12 14:26:33,924 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 14:26:34,958 INFO L134 CoverageAnalysis]: Checked inductivity of 3049 backedges. 144 proven. 4 refuted. 0 times theorem prover too weak. 2901 trivial. 0 not checked. [2024-10-12 14:26:34,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286986073] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 14:26:34,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 14:26:34,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 12, 12] total 82 [2024-10-12 14:26:34,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795097350] [2024-10-12 14:26:34,959 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 14:26:34,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2024-10-12 14:26:34,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 14:26:34,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2024-10-12 14:26:34,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1938, Invalid=4704, Unknown=0, NotChecked=0, Total=6642 [2024-10-12 14:26:34,965 INFO L87 Difference]: Start difference. First operand 256 states and 320 transitions. Second operand has 82 states, 82 states have (on average 1.475609756097561) internal successors, (121), 82 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:37,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 14:26:37,461 INFO L93 Difference]: Finished difference Result 559 states and 722 transitions. [2024-10-12 14:26:37,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2024-10-12 14:26:37,462 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 82 states have (on average 1.475609756097561) internal successors, (121), 82 states have internal predecessors, (121), 0 states have call successors, (0), 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 163 [2024-10-12 14:26:37,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 14:26:37,467 INFO L225 Difference]: With dead ends: 559 [2024-10-12 14:26:37,467 INFO L226 Difference]: Without dead ends: 363 [2024-10-12 14:26:37,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3905 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=5678, Invalid=16374, Unknown=0, NotChecked=0, Total=22052 [2024-10-12 14:26:37,473 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 86 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 14:26:37,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 203 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 14:26:37,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-10-12 14:26:37,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 260. [2024-10-12 14:26:37,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 259 states have (on average 1.250965250965251) internal successors, (324), 259 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:37,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 324 transitions. [2024-10-12 14:26:37,487 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 324 transitions. Word has length 163 [2024-10-12 14:26:37,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 14:26:37,488 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 324 transitions. [2024-10-12 14:26:37,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 82 states have (on average 1.475609756097561) internal successors, (121), 82 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:37,488 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 324 transitions. [2024-10-12 14:26:37,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-10-12 14:26:37,491 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 14:26:37,491 INFO L215 NwaCegarLoop]: trace histogram [59, 30, 30, 30, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 14:26:37,508 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-12 14:26:37,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-12 14:26:37,695 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 14:26:37,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 14:26:37,695 INFO L85 PathProgramCache]: Analyzing trace with hash 464838339, now seen corresponding path program 4 times [2024-10-12 14:26:37,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 14:26:37,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982208147] [2024-10-12 14:26:37,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 14:26:37,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 14:26:37,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 14:26:40,014 INFO L134 CoverageAnalysis]: Checked inductivity of 3113 backedges. 0 proven. 1770 refuted. 0 times theorem prover too weak. 1343 trivial. 0 not checked. [2024-10-12 14:26:40,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 14:26:40,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982208147] [2024-10-12 14:26:40,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982208147] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 14:26:40,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232095649] [2024-10-12 14:26:40,015 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-12 14:26:40,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 14:26:40,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 14:26:40,017 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 14:26:40,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-12 14:26:40,227 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-12 14:26:40,227 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 14:26:40,230 INFO L255 TraceCheckSpWp]: Trace formula consists of 855 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-12 14:26:40,232 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 14:26:41,248 INFO L134 CoverageAnalysis]: Checked inductivity of 3113 backedges. 1 proven. 1335 refuted. 0 times theorem prover too weak. 1777 trivial. 0 not checked. [2024-10-12 14:26:41,249 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 14:26:42,844 INFO L134 CoverageAnalysis]: Checked inductivity of 3113 backedges. 1 proven. 1335 refuted. 0 times theorem prover too weak. 1777 trivial. 0 not checked. [2024-10-12 14:26:42,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232095649] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 14:26:42,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 14:26:42,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 33, 33] total 124 [2024-10-12 14:26:42,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959244080] [2024-10-12 14:26:42,844 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 14:26:42,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 124 states [2024-10-12 14:26:42,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 14:26:42,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2024-10-12 14:26:42,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3906, Invalid=11346, Unknown=0, NotChecked=0, Total=15252 [2024-10-12 14:26:42,853 INFO L87 Difference]: Start difference. First operand 260 states and 324 transitions. Second operand has 124 states, 124 states have (on average 2.129032258064516) internal successors, (264), 124 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) [2024-10-12 14:26:43,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 14:26:43,200 INFO L93 Difference]: Finished difference Result 652 states and 908 transitions. [2024-10-12 14:26:43,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2024-10-12 14:26:43,202 INFO L78 Accepts]: Start accepts. Automaton has has 124 states, 124 states have (on average 2.129032258064516) internal successors, (264), 124 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 167 [2024-10-12 14:26:43,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 14:26:43,204 INFO L225 Difference]: With dead ends: 652 [2024-10-12 14:26:43,205 INFO L226 Difference]: Without dead ends: 453 [2024-10-12 14:26:43,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 271 SyntacticMatches, 0 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3658 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=3906, Invalid=11346, Unknown=0, NotChecked=0, Total=15252 [2024-10-12 14:26:43,207 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 240 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 14:26:43,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 122 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 14:26:43,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2024-10-12 14:26:43,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 453. [2024-10-12 14:26:43,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 452 states have (on average 1.2853982300884956) internal successors, (581), 452 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:26:43,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 581 transitions. [2024-10-12 14:26:43,226 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 581 transitions. Word has length 167 [2024-10-12 14:26:43,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 14:26:43,226 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 581 transitions. [2024-10-12 14:26:43,227 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 124 states, 124 states have (on average 2.129032258064516) internal successors, (264), 124 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) [2024-10-12 14:26:43,227 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 581 transitions. [2024-10-12 14:26:43,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-10-12 14:26:43,229 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 14:26:43,230 INFO L215 NwaCegarLoop]: trace histogram [62, 62, 62, 60, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 14:26:43,249 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-10-12 14:26:43,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-12 14:26:43,430 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 14:26:43,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 14:26:43,431 INFO L85 PathProgramCache]: Analyzing trace with hash 191577512, now seen corresponding path program 5 times [2024-10-12 14:26:43,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 14:26:43,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298131028] [2024-10-12 14:26:43,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 14:26:43,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 14:26:43,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 14:26:46,110 INFO L134 CoverageAnalysis]: Checked inductivity of 7573 backedges. 0 proven. 1830 refuted. 0 times theorem prover too weak. 5743 trivial. 0 not checked. [2024-10-12 14:26:46,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 14:26:46,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298131028] [2024-10-12 14:26:46,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298131028] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 14:26:46,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715950406] [2024-10-12 14:26:46,110 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-12 14:26:46,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 14:26:46,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 14:26:46,112 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 14:26:46,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-12 14:27:22,546 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 63 check-sat command(s) [2024-10-12 14:27:22,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 14:27:22,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 1069 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-10-12 14:27:22,571 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 14:27:25,418 INFO L134 CoverageAnalysis]: Checked inductivity of 7573 backedges. 1 proven. 5735 refuted. 0 times theorem prover too weak. 1837 trivial. 0 not checked. [2024-10-12 14:27:25,419 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 14:27:30,620 INFO L134 CoverageAnalysis]: Checked inductivity of 7573 backedges. 1 proven. 5735 refuted. 0 times theorem prover too weak. 1837 trivial. 0 not checked. [2024-10-12 14:27:30,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715950406] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 14:27:30,620 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 14:27:30,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 65, 65] total 189 [2024-10-12 14:27:30,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756596766] [2024-10-12 14:27:30,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 14:27:30,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 189 states [2024-10-12 14:27:30,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 14:27:30,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 189 interpolants. [2024-10-12 14:27:30,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10080, Invalid=25452, Unknown=0, NotChecked=0, Total=35532 [2024-10-12 14:27:30,629 INFO L87 Difference]: Start difference. First operand 453 states and 581 transitions. Second operand has 189 states, 189 states have (on average 2.417989417989418) internal successors, (457), 189 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:27:32,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 14:27:32,120 INFO L93 Difference]: Finished difference Result 1229 states and 1741 transitions. [2024-10-12 14:27:32,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 189 states. [2024-10-12 14:27:32,120 INFO L78 Accepts]: Start accepts. Automaton has has 189 states, 189 states have (on average 2.417989417989418) internal successors, (457), 189 states have internal predecessors, (457), 0 states have call successors, (0), 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 [2024-10-12 14:27:32,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 14:27:32,124 INFO L225 Difference]: With dead ends: 1229 [2024-10-12 14:27:32,124 INFO L226 Difference]: Without dead ends: 838 [2024-10-12 14:27:32,127 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 588 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 187 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7560 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=10080, Invalid=25452, Unknown=0, NotChecked=0, Total=35532 [2024-10-12 14:27:32,127 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 498 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 14:27:32,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 267 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 14:27:32,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2024-10-12 14:27:32,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2024-10-12 14:27:32,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 837 states have (on average 1.3070489844683393) internal successors, (1094), 837 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:27:32,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1094 transitions. [2024-10-12 14:27:32,158 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1094 transitions. Word has length 264 [2024-10-12 14:27:32,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 14:27:32,158 INFO L471 AbstractCegarLoop]: Abstraction has 838 states and 1094 transitions. [2024-10-12 14:27:32,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 189 states, 189 states have (on average 2.417989417989418) internal successors, (457), 189 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:27:32,159 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1094 transitions. [2024-10-12 14:27:32,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2024-10-12 14:27:32,166 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 14:27:32,166 INFO L215 NwaCegarLoop]: trace histogram [126, 126, 126, 61, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 14:27:32,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-10-12 14:27:32,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-12 14:27:32,367 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 14:27:32,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 14:27:32,368 INFO L85 PathProgramCache]: Analyzing trace with hash 271285091, now seen corresponding path program 6 times [2024-10-12 14:27:32,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 14:27:32,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703546267] [2024-10-12 14:27:32,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 14:27:32,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 14:27:32,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 14:27:35,445 INFO L134 CoverageAnalysis]: Checked inductivity of 25650 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 23759 trivial. 0 not checked. [2024-10-12 14:27:35,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 14:27:35,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703546267] [2024-10-12 14:27:35,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703546267] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 14:27:35,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954285516] [2024-10-12 14:27:35,446 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-12 14:27:35,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 14:27:35,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 14:27:35,448 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 14:27:35,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-12 14:27:36,122 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2024-10-12 14:27:36,122 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 14:27:36,126 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-10-12 14:27:36,132 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 14:27:37,612 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-10-12 14:27:37,612 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 13 [2024-10-12 14:27:37,643 INFO L134 CoverageAnalysis]: Checked inductivity of 25650 backedges. 1 proven. 1003 refuted. 0 times theorem prover too weak. 24646 trivial. 0 not checked. [2024-10-12 14:27:37,643 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 14:27:39,199 INFO L349 Elim1Store]: treesize reduction 13, result has 73.5 percent of original size [2024-10-12 14:27:39,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 49 treesize of output 47 [2024-10-12 14:27:39,340 INFO L134 CoverageAnalysis]: Checked inductivity of 25650 backedges. 124 proven. 880 refuted. 0 times theorem prover too weak. 24646 trivial. 0 not checked. [2024-10-12 14:27:39,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954285516] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 14:27:39,340 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 14:27:39,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 14, 14] total 88 [2024-10-12 14:27:39,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629871844] [2024-10-12 14:27:39,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 14:27:39,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2024-10-12 14:27:39,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 14:27:39,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2024-10-12 14:27:39,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2124, Invalid=5532, Unknown=0, NotChecked=0, Total=7656 [2024-10-12 14:27:39,344 INFO L87 Difference]: Start difference. First operand 838 states and 1094 transitions. Second operand has 88 states, 88 states have (on average 1.5340909090909092) internal successors, (135), 88 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:27:42,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 14:27:42,023 INFO L93 Difference]: Finished difference Result 2011 states and 2655 transitions. [2024-10-12 14:27:42,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2024-10-12 14:27:42,023 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 88 states have (on average 1.5340909090909092) internal successors, (135), 88 states have internal predecessors, (135), 0 states have call successors, (0), 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 457 [2024-10-12 14:27:42,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 14:27:42,030 INFO L225 Difference]: With dead ends: 2011 [2024-10-12 14:27:42,030 INFO L226 Difference]: Without dead ends: 1236 [2024-10-12 14:27:42,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1043 GetRequests, 888 SyntacticMatches, 1 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4405 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=6207, Invalid=17973, Unknown=0, NotChecked=0, Total=24180 [2024-10-12 14:27:42,035 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 69 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-12 14:27:42,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 304 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-12 14:27:42,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1236 states. [2024-10-12 14:27:42,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1236 to 842. [2024-10-12 14:27:42,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 841 states have (on average 1.305588585017836) internal successors, (1098), 841 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:27:42,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1098 transitions. [2024-10-12 14:27:42,076 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1098 transitions. Word has length 457 [2024-10-12 14:27:42,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 14:27:42,076 INFO L471 AbstractCegarLoop]: Abstraction has 842 states and 1098 transitions. [2024-10-12 14:27:42,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 1.5340909090909092) internal successors, (135), 88 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 14:27:42,076 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1098 transitions. [2024-10-12 14:27:42,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-10-12 14:27:42,083 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 14:27:42,084 INFO L215 NwaCegarLoop]: trace histogram [126, 126, 126, 62, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 14:27:42,104 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-10-12 14:27:42,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 14:27:42,285 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 14:27:42,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 14:27:42,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1691151497, now seen corresponding path program 7 times [2024-10-12 14:27:42,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 14:27:42,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851850354] [2024-10-12 14:27:42,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 14:27:42,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 14:27:42,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat