./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-examples/standard_partition_ground-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-examples/standard_partition_ground-2.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 fcf72d109deb69f1acda4466c7376bd6c362d474983f8a50a2faed8c0a192a76 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 09:45:46,411 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 09:45:46,471 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 09:45:46,480 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 09:45:46,482 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 09:45:46,505 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 09:45:46,509 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 09:45:46,510 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 09:45:46,510 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 09:45:46,510 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 09:45:46,510 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 09:45:46,511 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 09:45:46,511 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 09:45:46,511 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 09:45:46,512 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 09:45:46,512 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 09:45:46,512 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 09:45:46,512 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 09:45:46,512 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 09:45:46,513 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 09:45:46,513 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 09:45:46,516 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 09:45:46,516 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 09:45:46,517 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 09:45:46,517 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 09:45:46,517 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 09:45:46,517 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 09:45:46,518 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 09:45:46,518 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 09:45:46,518 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 09:45:46,521 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 09:45:46,522 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 09:45:46,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 09:45:46,522 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 09:45:46,522 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 09:45:46,522 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 09:45:46,522 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 09:45:46,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 09:45:46,523 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 09:45:46,523 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 09:45:46,523 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 09:45:46,523 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 09:45:46,523 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcf72d109deb69f1acda4466c7376bd6c362d474983f8a50a2faed8c0a192a76 [2024-11-08 09:45:46,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 09:45:46,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 09:45:46,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 09:45:46,737 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 09:45:46,737 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 09:45:46,738 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_partition_ground-2.i [2024-11-08 09:45:47,970 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 09:45:48,108 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 09:45:48,109 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_partition_ground-2.i [2024-11-08 09:45:48,115 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c5375078/45a2d93acb494d2f81c3a74c5433479c/FLAG640b9b3a6 [2024-11-08 09:45:48,126 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c5375078/45a2d93acb494d2f81c3a74c5433479c [2024-11-08 09:45:48,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 09:45:48,129 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 09:45:48,130 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 09:45:48,130 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 09:45:48,134 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 09:45:48,135 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 09:45:48" (1/1) ... [2024-11-08 09:45:48,136 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c26d5de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:45:48, skipping insertion in model container [2024-11-08 09:45:48,136 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 09:45:48" (1/1) ... [2024-11-08 09:45:48,153 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 09:45:48,294 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_partition_ground-2.i[820,833] [2024-11-08 09:45:48,316 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 09:45:48,321 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 09:45:48,330 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_partition_ground-2.i[820,833] [2024-11-08 09:45:48,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 09:45:48,347 INFO L204 MainTranslator]: Completed translation [2024-11-08 09:45:48,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:45:48 WrapperNode [2024-11-08 09:45:48,347 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 09:45:48,348 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 09:45:48,348 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 09:45:48,348 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 09:45:48,353 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:45:48" (1/1) ... [2024-11-08 09:45:48,359 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:45:48" (1/1) ... [2024-11-08 09:45:48,371 INFO L138 Inliner]: procedures = 16, calls = 20, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2024-11-08 09:45:48,372 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 09:45:48,372 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 09:45:48,372 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 09:45:48,373 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 09:45:48,379 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:45:48" (1/1) ... [2024-11-08 09:45:48,379 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:45:48" (1/1) ... [2024-11-08 09:45:48,381 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:45:48" (1/1) ... [2024-11-08 09:45:48,392 INFO L175 MemorySlicer]: Split 9 memory accesses to 3 slices as follows [2, 5, 2]. 56 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-11-08 09:45:48,392 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:45:48" (1/1) ... [2024-11-08 09:45:48,393 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:45:48" (1/1) ... [2024-11-08 09:45:48,397 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:45:48" (1/1) ... [2024-11-08 09:45:48,400 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:45:48" (1/1) ... [2024-11-08 09:45:48,400 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:45:48" (1/1) ... [2024-11-08 09:45:48,402 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:45:48" (1/1) ... [2024-11-08 09:45:48,403 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 09:45:48,404 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 09:45:48,404 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 09:45:48,404 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 09:45:48,405 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:45:48" (1/1) ... [2024-11-08 09:45:48,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 09:45:48,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 09:45:48,429 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 09:45:48,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 09:45:48,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 09:45:48,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 09:45:48,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 09:45:48,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 09:45:48,463 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 09:45:48,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 09:45:48,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 09:45:48,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 09:45:48,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 09:45:48,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 09:45:48,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 09:45:48,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 09:45:48,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 09:45:48,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 09:45:48,522 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 09:45:48,524 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 09:45:48,631 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-08 09:45:48,631 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 09:45:48,639 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 09:45:48,639 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-08 09:45:48,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 09:45:48 BoogieIcfgContainer [2024-11-08 09:45:48,640 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 09:45:48,643 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 09:45:48,643 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 09:45:48,645 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 09:45:48,646 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 09:45:48" (1/3) ... [2024-11-08 09:45:48,647 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ad7d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 09:45:48, skipping insertion in model container [2024-11-08 09:45:48,647 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:45:48" (2/3) ... [2024-11-08 09:45:48,647 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18ad7d38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 09:45:48, skipping insertion in model container [2024-11-08 09:45:48,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 09:45:48" (3/3) ... [2024-11-08 09:45:48,648 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_partition_ground-2.i [2024-11-08 09:45:48,662 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 09:45:48,662 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 09:45:48,705 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 09:45:48,709 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;@76df6d8e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 09:45:48,710 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 09:45:48,713 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 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) [2024-11-08 09:45:48,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 09:45:48,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 09:45:48,718 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 09:45:48,718 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 09:45:48,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 09:45:48,722 INFO L85 PathProgramCache]: Analyzing trace with hash 1469089075, now seen corresponding path program 1 times [2024-11-08 09:45:48,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 09:45:48,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724034563] [2024-11-08 09:45:48,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:45:48,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 09:45:48,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:45:48,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 09:45:48,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 09:45:48,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724034563] [2024-11-08 09:45:48,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724034563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 09:45:48,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 09:45:48,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 09:45:48,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074216385] [2024-11-08 09:45:48,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 09:45:48,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 09:45:48,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 09:45:48,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 09:45:48,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 09:45:48,939 INFO L87 Difference]: Start difference. First operand has 23 states, 21 states have (on average 1.5714285714285714) internal successors, (33), 22 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) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 09:45:48,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 09:45:48,965 INFO L93 Difference]: Finished difference Result 44 states and 64 transitions. [2024-11-08 09:45:48,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 09:45:48,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 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 11 [2024-11-08 09:45:48,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 09:45:48,973 INFO L225 Difference]: With dead ends: 44 [2024-11-08 09:45:48,973 INFO L226 Difference]: Without dead ends: 21 [2024-11-08 09:45:48,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 09:45:48,979 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 1 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 09:45:48,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 48 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 09:45:48,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-08 09:45:49,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2024-11-08 09:45:49,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 09:45:49,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2024-11-08 09:45:49,007 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 11 [2024-11-08 09:45:49,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 09:45:49,007 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2024-11-08 09:45:49,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 09:45:49,008 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2024-11-08 09:45:49,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-08 09:45:49,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 09:45:49,009 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 09:45:49,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 09:45:49,010 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 09:45:49,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 09:45:49,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1450036379, now seen corresponding path program 1 times [2024-11-08 09:45:49,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 09:45:49,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35421572] [2024-11-08 09:45:49,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:45:49,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 09:45:49,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:45:49,072 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 09:45:49,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 09:45:49,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35421572] [2024-11-08 09:45:49,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35421572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 09:45:49,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 09:45:49,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 09:45:49,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719056303] [2024-11-08 09:45:49,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 09:45:49,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 09:45:49,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 09:45:49,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 09:45:49,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 09:45:49,075 INFO L87 Difference]: Start difference. First operand 20 states and 25 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) [2024-11-08 09:45:49,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 09:45:49,109 INFO L93 Difference]: Finished difference Result 37 states and 48 transitions. [2024-11-08 09:45:49,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 09:45:49,109 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 [2024-11-08 09:45:49,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 09:45:49,110 INFO L225 Difference]: With dead ends: 37 [2024-11-08 09:45:49,110 INFO L226 Difference]: Without dead ends: 26 [2024-11-08 09:45:49,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 09:45:49,111 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 09:45:49,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 28 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 09:45:49,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-11-08 09:45:49,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 22. [2024-11-08 09:45:49,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 21 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 09:45:49,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2024-11-08 09:45:49,119 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 13 [2024-11-08 09:45:49,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 09:45:49,120 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2024-11-08 09:45:49,120 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) [2024-11-08 09:45:49,121 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2024-11-08 09:45:49,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-08 09:45:49,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 09:45:49,122 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 09:45:49,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 09:45:49,123 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 09:45:49,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 09:45:49,124 INFO L85 PathProgramCache]: Analyzing trace with hash 720621537, now seen corresponding path program 1 times [2024-11-08 09:45:49,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 09:45:49,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943005359] [2024-11-08 09:45:49,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:45:49,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 09:45:49,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:45:49,240 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 09:45:49,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 09:45:49,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943005359] [2024-11-08 09:45:49,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943005359] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 09:45:49,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1414289933] [2024-11-08 09:45:49,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:45:49,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:45:49,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 09:45:49,244 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 09:45:49,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 09:45:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:45:49,326 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 09:45:49,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 09:45:49,366 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 09:45:49,366 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 09:45:49,396 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 09:45:49,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1414289933] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 09:45:49,396 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 09:45:49,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-08 09:45:49,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140904299] [2024-11-08 09:45:49,397 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 09:45:49,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 09:45:49,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 09:45:49,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 09:45:49,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-08 09:45:49,398 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 09:45:49,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 09:45:49,427 INFO L93 Difference]: Finished difference Result 45 states and 57 transitions. [2024-11-08 09:45:49,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 09:45:49,427 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 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 [2024-11-08 09:45:49,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 09:45:49,428 INFO L225 Difference]: With dead ends: 45 [2024-11-08 09:45:49,428 INFO L226 Difference]: Without dead ends: 28 [2024-11-08 09:45:49,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-08 09:45:49,429 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 09:45:49,430 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 79 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 09:45:49,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-08 09:45:49,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-08 09:45:49,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 27 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) [2024-11-08 09:45:49,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2024-11-08 09:45:49,435 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 19 [2024-11-08 09:45:49,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 09:45:49,436 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2024-11-08 09:45:49,436 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 09:45:49,436 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2024-11-08 09:45:49,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-08 09:45:49,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 09:45:49,437 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 09:45:49,450 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 09:45:49,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:45:49,641 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 09:45:49,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 09:45:49,642 INFO L85 PathProgramCache]: Analyzing trace with hash -2125631333, now seen corresponding path program 2 times [2024-11-08 09:45:49,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 09:45:49,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156149292] [2024-11-08 09:45:49,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:45:49,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 09:45:49,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:45:49,734 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-08 09:45:49,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 09:45:49,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156149292] [2024-11-08 09:45:49,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156149292] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 09:45:49,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953481212] [2024-11-08 09:45:49,735 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 09:45:49,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:45:49,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 09:45:49,738 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) [2024-11-08 09:45:49,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 09:45:49,806 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 09:45:49,806 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 09:45:49,808 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 09:45:49,809 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 09:45:49,858 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 09:45:49,858 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 09:45:49,939 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 09:45:49,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953481212] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 09:45:49,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 09:45:49,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 14 [2024-11-08 09:45:49,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013800822] [2024-11-08 09:45:49,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 09:45:49,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 09:45:49,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 09:45:49,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 09:45:49,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-08 09:45:49,943 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 09:45:50,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 09:45:50,123 INFO L93 Difference]: Finished difference Result 67 states and 88 transitions. [2024-11-08 09:45:50,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 09:45:50,127 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 0 states have call successors, (0), 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 25 [2024-11-08 09:45:50,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 09:45:50,128 INFO L225 Difference]: With dead ends: 67 [2024-11-08 09:45:50,128 INFO L226 Difference]: Without dead ends: 50 [2024-11-08 09:45:50,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=211, Invalid=341, Unknown=0, NotChecked=0, Total=552 [2024-11-08 09:45:50,129 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 16 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 09:45:50,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 80 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 09:45:50,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-08 09:45:50,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2024-11-08 09:45:50,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.1777777777777778) internal successors, (53), 45 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 09:45:50,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2024-11-08 09:45:50,138 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 25 [2024-11-08 09:45:50,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 09:45:50,138 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2024-11-08 09:45:50,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 09:45:50,139 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2024-11-08 09:45:50,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-08 09:45:50,140 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 09:45:50,140 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 09:45:50,153 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 09:45:50,340 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,SelfDestructingSolverStorable3 [2024-11-08 09:45:50,341 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 09:45:50,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 09:45:50,342 INFO L85 PathProgramCache]: Analyzing trace with hash 995612105, now seen corresponding path program 3 times [2024-11-08 09:45:50,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 09:45:50,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580388455] [2024-11-08 09:45:50,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:45:50,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 09:45:50,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:45:50,613 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 09:45:50,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 09:45:50,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580388455] [2024-11-08 09:45:50,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580388455] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 09:45:50,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024458788] [2024-11-08 09:45:50,614 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 09:45:50,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:45:50,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 09:45:50,616 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) [2024-11-08 09:45:50,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 09:45:50,678 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-08 09:45:50,678 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 09:45:50,679 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 09:45:50,680 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 09:45:50,725 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-08 09:45:50,725 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 09:45:50,764 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-08 09:45:50,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024458788] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 09:45:50,765 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 09:45:50,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 19 [2024-11-08 09:45:50,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354816716] [2024-11-08 09:45:50,765 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 09:45:50,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-08 09:45:50,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 09:45:50,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-08 09:45:50,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2024-11-08 09:45:50,766 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 09:45:51,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 09:45:51,011 INFO L93 Difference]: Finished difference Result 96 states and 126 transitions. [2024-11-08 09:45:51,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-08 09:45:51,012 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 states have internal predecessors, (62), 0 states have call successors, (0), 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 43 [2024-11-08 09:45:51,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 09:45:51,013 INFO L225 Difference]: With dead ends: 96 [2024-11-08 09:45:51,015 INFO L226 Difference]: Without dead ends: 73 [2024-11-08 09:45:51,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=314, Invalid=556, Unknown=0, NotChecked=0, Total=870 [2024-11-08 09:45:51,017 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 97 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 09:45:51,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 102 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 09:45:51,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-08 09:45:51,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 72. [2024-11-08 09:45:51,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 71 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 09:45:51,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 87 transitions. [2024-11-08 09:45:51,026 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 87 transitions. Word has length 43 [2024-11-08 09:45:51,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 09:45:51,026 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 87 transitions. [2024-11-08 09:45:51,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.263157894736842) internal successors, (62), 19 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 09:45:51,027 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 87 transitions. [2024-11-08 09:45:51,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-08 09:45:51,029 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 09:45:51,029 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 09:45:51,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 09:45:51,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:45:51,234 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 09:45:51,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 09:45:51,234 INFO L85 PathProgramCache]: Analyzing trace with hash -426707065, now seen corresponding path program 4 times [2024-11-08 09:45:51,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 09:45:51,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007417849] [2024-11-08 09:45:51,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:45:51,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 09:45:51,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:45:51,511 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-08 09:45:51,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 09:45:51,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007417849] [2024-11-08 09:45:51,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007417849] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 09:45:51,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745840760] [2024-11-08 09:45:51,512 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-08 09:45:51,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:45:51,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 09:45:51,516 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) [2024-11-08 09:45:51,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 09:45:51,616 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-08 09:45:51,616 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 09:45:51,618 INFO L255 TraceCheckSpWp]: Trace formula consists of 302 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 09:45:51,620 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 09:45:51,662 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-08 09:45:51,662 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 09:45:51,880 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-08 09:45:51,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745840760] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 09:45:51,880 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 09:45:51,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 27 [2024-11-08 09:45:51,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357583045] [2024-11-08 09:45:51,880 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 09:45:51,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-08 09:45:51,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 09:45:51,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-08 09:45:51,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2024-11-08 09:45:51,882 INFO L87 Difference]: Start difference. First operand 72 states and 87 transitions. Second operand has 27 states, 27 states have (on average 2.4444444444444446) internal successors, (66), 27 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 09:45:51,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 09:45:51,949 INFO L93 Difference]: Finished difference Result 145 states and 187 transitions. [2024-11-08 09:45:51,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-08 09:45:51,950 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.4444444444444446) internal successors, (66), 27 states have internal predecessors, (66), 0 states have call successors, (0), 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 69 [2024-11-08 09:45:51,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 09:45:51,950 INFO L225 Difference]: With dead ends: 145 [2024-11-08 09:45:51,950 INFO L226 Difference]: Without dead ends: 98 [2024-11-08 09:45:51,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2024-11-08 09:45:51,951 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 09:45:51,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 136 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 09:45:51,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-08 09:45:51,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-08 09:45:51,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 1.1649484536082475) internal successors, (113), 97 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 09:45:51,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 113 transitions. [2024-11-08 09:45:51,965 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 113 transitions. Word has length 69 [2024-11-08 09:45:51,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 09:45:51,965 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 113 transitions. [2024-11-08 09:45:51,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.4444444444444446) internal successors, (66), 27 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 09:45:51,966 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 113 transitions. [2024-11-08 09:45:51,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 09:45:51,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 09:45:51,967 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 09:45:51,980 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 09:45:52,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:45:52,171 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 09:45:52,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 09:45:52,171 INFO L85 PathProgramCache]: Analyzing trace with hash 128396717, now seen corresponding path program 5 times [2024-11-08 09:45:52,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 09:45:52,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298797416] [2024-11-08 09:45:52,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:45:52,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 09:45:52,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:45:52,752 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 0 proven. 576 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-08 09:45:52,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 09:45:52,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298797416] [2024-11-08 09:45:52,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298797416] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 09:45:52,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737608595] [2024-11-08 09:45:52,753 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-08 09:45:52,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:45:52,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 09:45:52,754 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) [2024-11-08 09:45:52,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 09:46:01,527 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 25 check-sat command(s) [2024-11-08 09:46:01,527 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 09:46:01,536 INFO L255 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 09:46:01,542 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 09:46:01,630 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 0 proven. 576 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-08 09:46:01,632 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 09:46:02,347 INFO L134 CoverageAnalysis]: Checked inductivity of 678 backedges. 0 proven. 576 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-08 09:46:02,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737608595] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 09:46:02,347 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 09:46:02,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 53 [2024-11-08 09:46:02,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938705601] [2024-11-08 09:46:02,348 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 09:46:02,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2024-11-08 09:46:02,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 09:46:02,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2024-11-08 09:46:02,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2024-11-08 09:46:02,351 INFO L87 Difference]: Start difference. First operand 98 states and 113 transitions. Second operand has 53 states, 53 states have (on average 2.2264150943396226) internal successors, (118), 53 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) [2024-11-08 09:46:02,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 09:46:02,487 INFO L93 Difference]: Finished difference Result 197 states and 252 transitions. [2024-11-08 09:46:02,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2024-11-08 09:46:02,488 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 53 states have (on average 2.2264150943396226) internal successors, (118), 53 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 95 [2024-11-08 09:46:02,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 09:46:02,489 INFO L225 Difference]: With dead ends: 197 [2024-11-08 09:46:02,489 INFO L226 Difference]: Without dead ends: 150 [2024-11-08 09:46:02,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2024-11-08 09:46:02,490 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 09:46:02,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 155 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 09:46:02,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-08 09:46:02,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2024-11-08 09:46:02,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 149 states have (on average 1.1073825503355705) internal successors, (165), 149 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 09:46:02,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 165 transitions. [2024-11-08 09:46:02,503 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 165 transitions. Word has length 95 [2024-11-08 09:46:02,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 09:46:02,504 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 165 transitions. [2024-11-08 09:46:02,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 2.2264150943396226) internal successors, (118), 53 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) [2024-11-08 09:46:02,504 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 165 transitions. [2024-11-08 09:46:02,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-08 09:46:02,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 09:46:02,507 INFO L215 NwaCegarLoop]: trace histogram [50, 50, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 09:46:02,528 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 09:46:02,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:46:02,708 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 09:46:02,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 09:46:02,708 INFO L85 PathProgramCache]: Analyzing trace with hash 789311353, now seen corresponding path program 6 times [2024-11-08 09:46:02,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 09:46:02,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001164795] [2024-11-08 09:46:02,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:46:02,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 09:46:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:46:04,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2602 backedges. 0 proven. 2500 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-08 09:46:04,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 09:46:04,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001164795] [2024-11-08 09:46:04,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001164795] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 09:46:04,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707351906] [2024-11-08 09:46:04,349 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-08 09:46:04,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:46:04,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 09:46:04,351 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) [2024-11-08 09:46:04,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 09:46:04,454 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2024-11-08 09:46:04,454 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 09:46:04,455 INFO L255 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 09:46:04,458 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 09:46:04,842 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-08 09:46:04,868 INFO L134 CoverageAnalysis]: Checked inductivity of 2602 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 2580 trivial. 0 not checked. [2024-11-08 09:46:04,869 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 09:46:04,987 INFO L349 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2024-11-08 09:46:04,987 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 12 [2024-11-08 09:46:05,098 INFO L134 CoverageAnalysis]: Checked inductivity of 2602 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 2580 trivial. 0 not checked. [2024-11-08 09:46:05,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707351906] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 09:46:05,099 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 09:46:05,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 7, 7] total 62 [2024-11-08 09:46:05,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522910878] [2024-11-08 09:46:05,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 09:46:05,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2024-11-08 09:46:05,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 09:46:05,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2024-11-08 09:46:05,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1407, Invalid=2375, Unknown=0, NotChecked=0, Total=3782 [2024-11-08 09:46:05,102 INFO L87 Difference]: Start difference. First operand 150 states and 165 transitions. Second operand has 62 states, 62 states have (on average 2.3225806451612905) internal successors, (144), 62 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 09:46:06,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 09:46:06,518 INFO L93 Difference]: Finished difference Result 244 states and 287 transitions. [2024-11-08 09:46:06,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-11-08 09:46:06,521 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 62 states have (on average 2.3225806451612905) internal successors, (144), 62 states have internal predecessors, (144), 0 states have call successors, (0), 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 147 [2024-11-08 09:46:06,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 09:46:06,522 INFO L225 Difference]: With dead ends: 244 [2024-11-08 09:46:06,522 INFO L226 Difference]: Without dead ends: 197 [2024-11-08 09:46:06,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1890 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=4228, Invalid=8882, Unknown=0, NotChecked=0, Total=13110 [2024-11-08 09:46:06,525 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 27 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 09:46:06,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 166 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 09:46:06,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-08 09:46:06,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 172. [2024-11-08 09:46:06,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 171 states have (on average 1.128654970760234) internal successors, (193), 171 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 09:46:06,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 193 transitions. [2024-11-08 09:46:06,535 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 193 transitions. Word has length 147 [2024-11-08 09:46:06,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 09:46:06,536 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 193 transitions. [2024-11-08 09:46:06,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 2.3225806451612905) internal successors, (144), 62 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 09:46:06,536 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 193 transitions. [2024-11-08 09:46:06,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-08 09:46:06,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 09:46:06,537 INFO L215 NwaCegarLoop]: trace histogram [51, 51, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 09:46:06,555 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 09:46:06,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:46:06,742 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 09:46:06,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 09:46:06,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1306508405, now seen corresponding path program 1 times [2024-11-08 09:46:06,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 09:46:06,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869425915] [2024-11-08 09:46:06,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:46:06,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 09:46:06,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:46:08,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2703 backedges. 0 proven. 2601 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-08 09:46:08,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 09:46:08,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869425915] [2024-11-08 09:46:08,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869425915] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 09:46:08,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619002166] [2024-11-08 09:46:08,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:46:08,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:46:08,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 09:46:08,185 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) [2024-11-08 09:46:08,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 09:46:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:46:08,321 INFO L255 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-08 09:46:08,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 09:46:08,442 INFO L134 CoverageAnalysis]: Checked inductivity of 2703 backedges. 0 proven. 2601 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-08 09:46:08,442 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 09:46:10,610 INFO L134 CoverageAnalysis]: Checked inductivity of 2703 backedges. 0 proven. 2601 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-08 09:46:10,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619002166] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 09:46:10,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 09:46:10,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54, 54] total 107 [2024-11-08 09:46:10,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734554945] [2024-11-08 09:46:10,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 09:46:10,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2024-11-08 09:46:10,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 09:46:10,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2024-11-08 09:46:10,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5671, Invalid=5671, Unknown=0, NotChecked=0, Total=11342 [2024-11-08 09:46:10,615 INFO L87 Difference]: Start difference. First operand 172 states and 193 transitions. Second operand has 107 states, 107 states have (on average 2.121495327102804) internal successors, (227), 107 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 09:46:10,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 09:46:10,839 INFO L93 Difference]: Finished difference Result 345 states and 439 transitions. [2024-11-08 09:46:10,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2024-11-08 09:46:10,839 INFO L78 Accepts]: Start accepts. Automaton has has 107 states, 107 states have (on average 2.121495327102804) internal successors, (227), 107 states have internal predecessors, (227), 0 states have call successors, (0), 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 149 [2024-11-08 09:46:10,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 09:46:10,840 INFO L225 Difference]: With dead ends: 345 [2024-11-08 09:46:10,840 INFO L226 Difference]: Without dead ends: 278 [2024-11-08 09:46:10,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 350 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=5671, Invalid=5671, Unknown=0, NotChecked=0, Total=11342 [2024-11-08 09:46:10,843 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 09:46:10,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 136 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 09:46:10,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2024-11-08 09:46:10,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2024-11-08 09:46:10,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 277 states have (on average 1.0794223826714802) internal successors, (299), 277 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 09:46:10,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 299 transitions. [2024-11-08 09:46:10,854 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 299 transitions. Word has length 149 [2024-11-08 09:46:10,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 09:46:10,854 INFO L471 AbstractCegarLoop]: Abstraction has 278 states and 299 transitions. [2024-11-08 09:46:10,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 107 states have (on average 2.121495327102804) internal successors, (227), 107 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 09:46:10,855 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 299 transitions. [2024-11-08 09:46:10,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-11-08 09:46:10,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 09:46:10,857 INFO L215 NwaCegarLoop]: trace histogram [104, 104, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 09:46:10,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-08 09:46:11,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:46:11,058 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 09:46:11,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 09:46:11,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1448340043, now seen corresponding path program 2 times [2024-11-08 09:46:11,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 09:46:11,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449359791] [2024-11-08 09:46:11,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:46:11,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 09:46:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:46:16,145 INFO L134 CoverageAnalysis]: Checked inductivity of 10918 backedges. 0 proven. 10816 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-08 09:46:16,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 09:46:16,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449359791] [2024-11-08 09:46:16,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449359791] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 09:46:16,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016222735] [2024-11-08 09:46:16,146 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 09:46:16,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:46:16,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 09:46:16,147 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) [2024-11-08 09:46:16,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 09:46:16,410 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 09:46:16,410 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 09:46:16,422 INFO L255 TraceCheckSpWp]: Trace formula consists of 1134 conjuncts, 106 conjuncts are in the unsatisfiable core [2024-11-08 09:46:16,427 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 09:46:16,646 INFO L134 CoverageAnalysis]: Checked inductivity of 10918 backedges. 0 proven. 10816 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-08 09:46:16,646 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 09:46:25,054 INFO L134 CoverageAnalysis]: Checked inductivity of 10918 backedges. 0 proven. 10816 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-08 09:46:25,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016222735] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 09:46:25,055 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 09:46:25,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [107, 107, 107] total 213 [2024-11-08 09:46:25,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909157687] [2024-11-08 09:46:25,055 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 09:46:25,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 213 states [2024-11-08 09:46:25,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 09:46:25,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 213 interpolants. [2024-11-08 09:46:25,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22578, Invalid=22578, Unknown=0, NotChecked=0, Total=45156 [2024-11-08 09:46:25,063 INFO L87 Difference]: Start difference. First operand 278 states and 299 transitions. Second operand has 213 states, 213 states have (on average 2.0610328638497655) internal successors, (439), 213 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 09:46:25,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 09:46:25,753 INFO L93 Difference]: Finished difference Result 557 states and 704 transitions. [2024-11-08 09:46:25,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. [2024-11-08 09:46:25,753 INFO L78 Accepts]: Start accepts. Automaton has has 213 states, 213 states have (on average 2.0610328638497655) internal successors, (439), 213 states have internal predecessors, (439), 0 states have call successors, (0), 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 255 [2024-11-08 09:46:25,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 09:46:25,756 INFO L225 Difference]: With dead ends: 557 [2024-11-08 09:46:25,756 INFO L226 Difference]: Without dead ends: 490 [2024-11-08 09:46:25,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 404 SyntacticMatches, 0 SemanticMatches, 211 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=22578, Invalid=22578, Unknown=0, NotChecked=0, Total=45156 [2024-11-08 09:46:25,759 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 431 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 09:46:25,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 98 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 431 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 09:46:25,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-11-08 09:46:25,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 490. [2024-11-08 09:46:25,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 489 states have (on average 1.0449897750511248) internal successors, (511), 489 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 09:46:25,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 511 transitions. [2024-11-08 09:46:25,788 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 511 transitions. Word has length 255 [2024-11-08 09:46:25,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 09:46:25,789 INFO L471 AbstractCegarLoop]: Abstraction has 490 states and 511 transitions. [2024-11-08 09:46:25,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 213 states, 213 states have (on average 2.0610328638497655) internal successors, (439), 213 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 09:46:25,789 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 511 transitions. [2024-11-08 09:46:25,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2024-11-08 09:46:25,798 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 09:46:25,798 INFO L215 NwaCegarLoop]: trace histogram [210, 210, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 09:46:25,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-08 09:46:26,002 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,SelfDestructingSolverStorable9 [2024-11-08 09:46:26,003 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 09:46:26,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 09:46:26,004 INFO L85 PathProgramCache]: Analyzing trace with hash 1237881719, now seen corresponding path program 3 times [2024-11-08 09:46:26,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 09:46:26,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876287093] [2024-11-08 09:46:26,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:46:26,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 09:46:26,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:46:45,400 INFO L134 CoverageAnalysis]: Checked inductivity of 44202 backedges. 0 proven. 44100 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-08 09:46:45,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 09:46:45,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876287093] [2024-11-08 09:46:45,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876287093] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 09:46:45,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718523796] [2024-11-08 09:46:45,401 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 09:46:45,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:46:45,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 09:46:45,402 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) [2024-11-08 09:46:45,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 09:46:45,639 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-08 09:46:45,639 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 09:46:45,640 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 09:46:45,645 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 09:46:45,661 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 23 treesize of output 1 [2024-11-08 09:46:46,299 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 09:46:46,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 15 [2024-11-08 09:46:46,579 INFO L134 CoverageAnalysis]: Checked inductivity of 44202 backedges. 435 proven. 16 refuted. 0 times theorem prover too weak. 43751 trivial. 0 not checked. [2024-11-08 09:46:46,579 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 09:46:47,256 INFO L134 CoverageAnalysis]: Checked inductivity of 44202 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 44170 trivial. 0 not checked. [2024-11-08 09:46:47,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718523796] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 09:46:47,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 09:46:47,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [213, 11, 9] total 226 [2024-11-08 09:46:47,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333345404] [2024-11-08 09:46:47,259 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 09:46:47,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 226 states [2024-11-08 09:46:47,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 09:46:47,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 226 interpolants. [2024-11-08 09:46:47,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23051, Invalid=27799, Unknown=0, NotChecked=0, Total=50850 [2024-11-08 09:46:47,269 INFO L87 Difference]: Start difference. First operand 490 states and 511 transitions. Second operand has 226 states, 226 states have (on average 2.0707964601769913) internal successors, (468), 226 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 09:46:51,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 09:47:11,484 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-08 09:47:11,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 09:47:11,850 INFO L93 Difference]: Finished difference Result 637 states and 698 transitions. [2024-11-08 09:47:11,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 229 states. [2024-11-08 09:47:11,851 INFO L78 Accepts]: Start accepts. Automaton has has 226 states, 226 states have (on average 2.0707964601769913) internal successors, (468), 226 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 467 [2024-11-08 09:47:11,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 09:47:11,855 INFO L225 Difference]: With dead ends: 637 [2024-11-08 09:47:11,855 INFO L226 Difference]: Without dead ends: 570 [2024-11-08 09:47:11,866 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1367 GetRequests, 919 SyntacticMatches, 3 SemanticMatches, 445 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27306 ImplicationChecksByTransitivity, 27.7s TimeCoverageRelationStatistics Valid=70418, Invalid=128944, Unknown=0, NotChecked=0, Total=199362 [2024-11-08 09:47:11,867 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 459 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 11 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2024-11-08 09:47:11,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 185 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 650 Invalid, 2 Unknown, 0 Unchecked, 8.4s Time] [2024-11-08 09:47:11,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2024-11-08 09:47:11,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 521. [2024-11-08 09:47:11,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 520 states have (on average 1.0596153846153846) internal successors, (551), 520 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 09:47:11,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 551 transitions. [2024-11-08 09:47:11,891 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 551 transitions. Word has length 467 [2024-11-08 09:47:11,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 09:47:11,892 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 551 transitions. [2024-11-08 09:47:11,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 226 states, 226 states have (on average 2.0707964601769913) internal successors, (468), 226 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 09:47:11,893 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 551 transitions. [2024-11-08 09:47:11,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-11-08 09:47:11,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 09:47:11,898 INFO L215 NwaCegarLoop]: trace histogram [212, 212, 6, 6, 6, 6, 6, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 09:47:11,911 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-08 09:47:12,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:47:12,102 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 09:47:12,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 09:47:12,102 INFO L85 PathProgramCache]: Analyzing trace with hash -658939403, now seen corresponding path program 4 times [2024-11-08 09:47:12,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 09:47:12,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255692194] [2024-11-08 09:47:12,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:47:12,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 09:47:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat