./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label46.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label46.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 201cd0b9f7312851770c009ac8fff4b46d270c8816b37eb4df1c49891060a8fb --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-23 21:03:36,266 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-23 21:03:36,323 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-23 21:03:36,342 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-23 21:03:36,342 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-23 21:03:36,361 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-23 21:03:36,362 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-23 21:03:36,362 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-23 21:03:36,363 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-23 21:03:36,363 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-23 21:03:36,363 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-23 21:03:36,364 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-23 21:03:36,364 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-23 21:03:36,365 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-23 21:03:36,365 INFO L153 SettingsManager]: * Use SBE=true [2024-10-23 21:03:36,366 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-23 21:03:36,366 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-23 21:03:36,367 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-23 21:03:36,367 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-23 21:03:36,367 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-23 21:03:36,368 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-23 21:03:36,368 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-23 21:03:36,369 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-23 21:03:36,369 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-23 21:03:36,369 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-23 21:03:36,370 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-23 21:03:36,370 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-23 21:03:36,370 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-23 21:03:36,371 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-23 21:03:36,371 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-23 21:03:36,372 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-23 21:03:36,372 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-23 21:03:36,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 21:03:36,373 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-23 21:03:36,373 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-23 21:03:36,373 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-23 21:03:36,374 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-23 21:03:36,374 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-23 21:03:36,374 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-23 21:03:36,375 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-23 21:03:36,375 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-23 21:03:36,384 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-23 21:03:36,384 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 201cd0b9f7312851770c009ac8fff4b46d270c8816b37eb4df1c49891060a8fb [2024-10-23 21:03:36,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-23 21:03:36,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-23 21:03:36,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-23 21:03:36,670 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-23 21:03:36,671 INFO L274 PluginConnector]: CDTParser initialized [2024-10-23 21:03:36,672 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label46.c [2024-10-23 21:03:38,215 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-23 21:03:38,533 INFO L384 CDTParser]: Found 1 translation units. [2024-10-23 21:03:38,534 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label46.c [2024-10-23 21:03:38,557 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/915bab975/da57dfcf49a742c2a88182721cba5393/FLAG93c5dbe3b [2024-10-23 21:03:38,576 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/915bab975/da57dfcf49a742c2a88182721cba5393 [2024-10-23 21:03:38,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-23 21:03:38,580 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-23 21:03:38,582 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-23 21:03:38,582 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-23 21:03:38,588 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-23 21:03:38,589 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:03:38" (1/1) ... [2024-10-23 21:03:38,591 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@506fd54a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:03:38, skipping insertion in model container [2024-10-23 21:03:38,592 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:03:38" (1/1) ... [2024-10-23 21:03:38,648 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-23 21:03:38,906 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label46.c[8949,8962] [2024-10-23 21:03:39,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 21:03:39,169 INFO L200 MainTranslator]: Completed pre-run [2024-10-23 21:03:39,211 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label46.c[8949,8962] [2024-10-23 21:03:39,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 21:03:39,342 INFO L204 MainTranslator]: Completed translation [2024-10-23 21:03:39,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:03:39 WrapperNode [2024-10-23 21:03:39,343 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-23 21:03:39,344 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-23 21:03:39,345 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-23 21:03:39,345 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-23 21:03:39,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:03:39" (1/1) ... [2024-10-23 21:03:39,380 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:03:39" (1/1) ... [2024-10-23 21:03:39,516 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1000 [2024-10-23 21:03:39,517 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-23 21:03:39,517 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-23 21:03:39,518 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-23 21:03:39,518 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-23 21:03:39,530 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:03:39" (1/1) ... [2024-10-23 21:03:39,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:03:39" (1/1) ... [2024-10-23 21:03:39,571 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:03:39" (1/1) ... [2024-10-23 21:03:39,643 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-23 21:03:39,644 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:03:39" (1/1) ... [2024-10-23 21:03:39,644 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:03:39" (1/1) ... [2024-10-23 21:03:39,686 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:03:39" (1/1) ... [2024-10-23 21:03:39,695 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:03:39" (1/1) ... [2024-10-23 21:03:39,711 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:03:39" (1/1) ... [2024-10-23 21:03:39,720 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:03:39" (1/1) ... [2024-10-23 21:03:39,744 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-23 21:03:39,745 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-23 21:03:39,746 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-23 21:03:39,747 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-23 21:03:39,747 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:03:39" (1/1) ... [2024-10-23 21:03:39,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 21:03:39,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:03:39,783 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-23 21:03:39,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-23 21:03:39,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-23 21:03:39,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-23 21:03:39,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-23 21:03:39,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-23 21:03:39,916 INFO L238 CfgBuilder]: Building ICFG [2024-10-23 21:03:39,918 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-23 21:03:41,569 INFO L? ?]: Removed 129 outVars from TransFormulas that were not future-live. [2024-10-23 21:03:41,569 INFO L287 CfgBuilder]: Performing block encoding [2024-10-23 21:03:41,626 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-23 21:03:41,628 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-23 21:03:41,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:03:41 BoogieIcfgContainer [2024-10-23 21:03:41,629 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-23 21:03:41,632 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-23 21:03:41,632 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-23 21:03:41,635 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-23 21:03:41,636 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:03:38" (1/3) ... [2024-10-23 21:03:41,636 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@749dbcb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:03:41, skipping insertion in model container [2024-10-23 21:03:41,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:03:39" (2/3) ... [2024-10-23 21:03:41,637 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@749dbcb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:03:41, skipping insertion in model container [2024-10-23 21:03:41,637 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:03:41" (3/3) ... [2024-10-23 21:03:41,639 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label46.c [2024-10-23 21:03:41,656 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-23 21:03:41,656 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-23 21:03:41,738 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-23 21:03:41,747 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;@4fed2162, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-23 21:03:41,748 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-23 21:03:41,753 INFO L276 IsEmpty]: Start isEmpty. Operand has 221 states, 219 states have (on average 1.917808219178082) internal successors, (420), 220 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:41,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-23 21:03:41,763 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:03:41,764 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:03:41,764 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:03:41,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:03:41,770 INFO L85 PathProgramCache]: Analyzing trace with hash -1542101384, now seen corresponding path program 1 times [2024-10-23 21:03:41,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:03:41,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247436010] [2024-10-23 21:03:41,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:03:41,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:03:41,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:03:42,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:03:42,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:03:42,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247436010] [2024-10-23 21:03:42,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247436010] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:03:42,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:03:42,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:03:42,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662799751] [2024-10-23 21:03:42,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:03:42,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-23 21:03:42,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:03:42,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-23 21:03:42,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 21:03:42,055 INFO L87 Difference]: Start difference. First operand has 221 states, 219 states have (on average 1.917808219178082) internal successors, (420), 220 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:42,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:03:42,115 INFO L93 Difference]: Finished difference Result 441 states and 839 transitions. [2024-10-23 21:03:42,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-23 21:03:42,123 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-10-23 21:03:42,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:03:42,135 INFO L225 Difference]: With dead ends: 441 [2024-10-23 21:03:42,136 INFO L226 Difference]: Without dead ends: 219 [2024-10-23 21:03:42,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 21:03:42,146 INFO L432 NwaCegarLoop]: 355 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-23 21:03:42,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 355 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-23 21:03:42,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-10-23 21:03:42,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2024-10-23 21:03:42,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 218 states have (on average 1.628440366972477) internal successors, (355), 218 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:42,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 355 transitions. [2024-10-23 21:03:42,192 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 355 transitions. Word has length 61 [2024-10-23 21:03:42,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:03:42,193 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 355 transitions. [2024-10-23 21:03:42,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:42,194 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 355 transitions. [2024-10-23 21:03:42,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-23 21:03:42,196 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:03:42,196 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:03:42,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-23 21:03:42,197 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:03:42,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:03:42,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1645941997, now seen corresponding path program 1 times [2024-10-23 21:03:42,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:03:42,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30957427] [2024-10-23 21:03:42,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:03:42,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:03:42,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:03:42,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:03:42,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:03:42,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30957427] [2024-10-23 21:03:42,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30957427] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:03:42,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:03:42,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:03:42,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62889846] [2024-10-23 21:03:42,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:03:42,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:03:42,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:03:42,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:03:42,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:42,481 INFO L87 Difference]: Start difference. First operand 219 states and 355 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:43,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:03:43,387 INFO L93 Difference]: Finished difference Result 630 states and 1029 transitions. [2024-10-23 21:03:43,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:03:43,389 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-10-23 21:03:43,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:03:43,395 INFO L225 Difference]: With dead ends: 630 [2024-10-23 21:03:43,395 INFO L226 Difference]: Without dead ends: 412 [2024-10-23 21:03:43,396 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:43,397 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 146 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 644 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-23 21:03:43,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 144 Invalid, 644 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-23 21:03:43,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-10-23 21:03:43,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 410. [2024-10-23 21:03:43,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 409 states have (on average 1.4596577017114913) internal successors, (597), 409 states have internal predecessors, (597), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:43,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 597 transitions. [2024-10-23 21:03:43,430 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 597 transitions. Word has length 61 [2024-10-23 21:03:43,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:03:43,431 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 597 transitions. [2024-10-23 21:03:43,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:43,432 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 597 transitions. [2024-10-23 21:03:43,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-10-23 21:03:43,435 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:03:43,436 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:03:43,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-23 21:03:43,436 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:03:43,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:03:43,437 INFO L85 PathProgramCache]: Analyzing trace with hash 441675973, now seen corresponding path program 1 times [2024-10-23 21:03:43,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:03:43,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867997054] [2024-10-23 21:03:43,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:03:43,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:03:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:03:43,703 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:03:43,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:03:43,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867997054] [2024-10-23 21:03:43,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867997054] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:03:43,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:03:43,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:03:43,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695445928] [2024-10-23 21:03:43,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:03:43,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:03:43,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:03:43,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:03:43,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:43,707 INFO L87 Difference]: Start difference. First operand 410 states and 597 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:44,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:03:44,545 INFO L93 Difference]: Finished difference Result 1208 states and 1764 transitions. [2024-10-23 21:03:44,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:03:44,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2024-10-23 21:03:44,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:03:44,549 INFO L225 Difference]: With dead ends: 1208 [2024-10-23 21:03:44,549 INFO L226 Difference]: Without dead ends: 799 [2024-10-23 21:03:44,551 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:44,552 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 142 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 524 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 524 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-23 21:03:44,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 120 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 524 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-23 21:03:44,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2024-10-23 21:03:44,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 786. [2024-10-23 21:03:44,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 786 states, 785 states have (on average 1.3847133757961783) internal successors, (1087), 785 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:44,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1087 transitions. [2024-10-23 21:03:44,594 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1087 transitions. Word has length 129 [2024-10-23 21:03:44,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:03:44,594 INFO L471 AbstractCegarLoop]: Abstraction has 786 states and 1087 transitions. [2024-10-23 21:03:44,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:44,595 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1087 transitions. [2024-10-23 21:03:44,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-10-23 21:03:44,597 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:03:44,598 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:03:44,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-23 21:03:44,598 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:03:44,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:03:44,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1051544992, now seen corresponding path program 1 times [2024-10-23 21:03:44,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:03:44,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766145693] [2024-10-23 21:03:44,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:03:44,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:03:44,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:03:44,969 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:03:44,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:03:44,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766145693] [2024-10-23 21:03:44,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766145693] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:03:44,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:03:44,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:03:44,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484685055] [2024-10-23 21:03:44,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:03:44,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:03:44,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:03:44,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:03:44,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:44,974 INFO L87 Difference]: Start difference. First operand 786 states and 1087 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:45,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:03:45,688 INFO L93 Difference]: Finished difference Result 1941 states and 2628 transitions. [2024-10-23 21:03:45,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:03:45,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2024-10-23 21:03:45,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:03:45,694 INFO L225 Difference]: With dead ends: 1941 [2024-10-23 21:03:45,694 INFO L226 Difference]: Without dead ends: 1156 [2024-10-23 21:03:45,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:45,700 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 119 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 532 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 532 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:03:45,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 188 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 532 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-23 21:03:45,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1156 states. [2024-10-23 21:03:45,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1156 to 1155. [2024-10-23 21:03:45,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1155 states, 1154 states have (on average 1.2772963604852687) internal successors, (1474), 1154 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:45,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1155 states to 1155 states and 1474 transitions. [2024-10-23 21:03:45,739 INFO L78 Accepts]: Start accepts. Automaton has 1155 states and 1474 transitions. Word has length 131 [2024-10-23 21:03:45,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:03:45,739 INFO L471 AbstractCegarLoop]: Abstraction has 1155 states and 1474 transitions. [2024-10-23 21:03:45,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:45,740 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states and 1474 transitions. [2024-10-23 21:03:45,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-10-23 21:03:45,746 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:03:45,746 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:03:45,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-23 21:03:45,747 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:03:45,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:03:45,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1872934921, now seen corresponding path program 1 times [2024-10-23 21:03:45,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:03:45,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546119671] [2024-10-23 21:03:45,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:03:45,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:03:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:03:46,043 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:03:46,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:03:46,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546119671] [2024-10-23 21:03:46,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546119671] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:03:46,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:03:46,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:03:46,048 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961325652] [2024-10-23 21:03:46,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:03:46,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:03:46,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:03:46,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:03:46,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:46,050 INFO L87 Difference]: Start difference. First operand 1155 states and 1474 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:46,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:03:46,894 INFO L93 Difference]: Finished difference Result 2690 states and 3512 transitions. [2024-10-23 21:03:46,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:03:46,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2024-10-23 21:03:46,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:03:46,901 INFO L225 Difference]: With dead ends: 2690 [2024-10-23 21:03:46,901 INFO L226 Difference]: Without dead ends: 1720 [2024-10-23 21:03:46,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:46,904 INFO L432 NwaCegarLoop]: 313 mSDtfsCounter, 144 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-23 21:03:46,904 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 333 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-23 21:03:46,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1720 states. [2024-10-23 21:03:46,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1720 to 1527. [2024-10-23 21:03:46,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1527 states, 1526 states have (on average 1.2608125819134994) internal successors, (1924), 1526 states have internal predecessors, (1924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:46,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1527 states to 1527 states and 1924 transitions. [2024-10-23 21:03:46,931 INFO L78 Accepts]: Start accepts. Automaton has 1527 states and 1924 transitions. Word has length 173 [2024-10-23 21:03:46,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:03:46,932 INFO L471 AbstractCegarLoop]: Abstraction has 1527 states and 1924 transitions. [2024-10-23 21:03:46,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:46,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1527 states and 1924 transitions. [2024-10-23 21:03:46,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2024-10-23 21:03:46,936 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:03:46,936 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:03:46,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-23 21:03:46,937 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:03:46,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:03:46,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1099149436, now seen corresponding path program 1 times [2024-10-23 21:03:46,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:03:46,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959093896] [2024-10-23 21:03:46,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:03:46,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:03:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:03:47,288 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-10-23 21:03:47,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:03:47,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959093896] [2024-10-23 21:03:47,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959093896] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:03:47,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:03:47,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:03:47,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314170159] [2024-10-23 21:03:47,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:03:47,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:03:47,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:03:47,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:03:47,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:47,291 INFO L87 Difference]: Start difference. First operand 1527 states and 1924 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:48,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:03:48,111 INFO L93 Difference]: Finished difference Result 4159 states and 5314 transitions. [2024-10-23 21:03:48,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:03:48,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 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 243 [2024-10-23 21:03:48,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:03:48,123 INFO L225 Difference]: With dead ends: 4159 [2024-10-23 21:03:48,123 INFO L226 Difference]: Without dead ends: 2633 [2024-10-23 21:03:48,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:48,129 INFO L432 NwaCegarLoop]: 330 mSDtfsCounter, 152 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 584 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-23 21:03:48,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 349 Invalid, 676 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 584 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-23 21:03:48,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2633 states. [2024-10-23 21:03:48,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2633 to 2633. [2024-10-23 21:03:48,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2633 states, 2632 states have (on average 1.2469604863221884) internal successors, (3282), 2632 states have internal predecessors, (3282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:48,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2633 states to 2633 states and 3282 transitions. [2024-10-23 21:03:48,189 INFO L78 Accepts]: Start accepts. Automaton has 2633 states and 3282 transitions. Word has length 243 [2024-10-23 21:03:48,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:03:48,190 INFO L471 AbstractCegarLoop]: Abstraction has 2633 states and 3282 transitions. [2024-10-23 21:03:48,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:48,190 INFO L276 IsEmpty]: Start isEmpty. Operand 2633 states and 3282 transitions. [2024-10-23 21:03:48,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2024-10-23 21:03:48,196 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:03:48,196 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:03:48,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-23 21:03:48,197 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:03:48,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:03:48,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1073805435, now seen corresponding path program 1 times [2024-10-23 21:03:48,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:03:48,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586595995] [2024-10-23 21:03:48,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:03:48,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:03:48,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:03:48,373 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-10-23 21:03:48,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:03:48,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586595995] [2024-10-23 21:03:48,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586595995] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:03:48,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:03:48,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:03:48,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195662847] [2024-10-23 21:03:48,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:03:48,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:03:48,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:03:48,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:03:48,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:48,377 INFO L87 Difference]: Start difference. First operand 2633 states and 3282 transitions. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:49,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:03:49,169 INFO L93 Difference]: Finished difference Result 6552 states and 8156 transitions. [2024-10-23 21:03:49,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:03:49,169 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 0 states have call successors, (0), 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 254 [2024-10-23 21:03:49,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:03:49,183 INFO L225 Difference]: With dead ends: 6552 [2024-10-23 21:03:49,183 INFO L226 Difference]: Without dead ends: 3920 [2024-10-23 21:03:49,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:49,189 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 115 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 449 mSolverCounterSat, 161 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 161 IncrementalHoareTripleChecker+Valid, 449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:03:49,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 153 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [161 Valid, 449 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-23 21:03:49,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2024-10-23 21:03:49,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3184. [2024-10-23 21:03:49,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3184 states, 3183 states have (on average 1.1699654414074772) internal successors, (3724), 3183 states have internal predecessors, (3724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:49,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3184 states to 3184 states and 3724 transitions. [2024-10-23 21:03:49,252 INFO L78 Accepts]: Start accepts. Automaton has 3184 states and 3724 transitions. Word has length 254 [2024-10-23 21:03:49,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:03:49,252 INFO L471 AbstractCegarLoop]: Abstraction has 3184 states and 3724 transitions. [2024-10-23 21:03:49,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 2 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:49,253 INFO L276 IsEmpty]: Start isEmpty. Operand 3184 states and 3724 transitions. [2024-10-23 21:03:49,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-10-23 21:03:49,257 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:03:49,257 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:03:49,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-23 21:03:49,258 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:03:49,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:03:49,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1584555167, now seen corresponding path program 1 times [2024-10-23 21:03:49,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:03:49,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174206440] [2024-10-23 21:03:49,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:03:49,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:03:49,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:03:49,601 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-10-23 21:03:49,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:03:49,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174206440] [2024-10-23 21:03:49,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174206440] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:03:49,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:03:49,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:03:49,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54935699] [2024-10-23 21:03:49,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:03:49,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:03:49,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:03:49,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:03:49,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:49,604 INFO L87 Difference]: Start difference. First operand 3184 states and 3724 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:50,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:03:50,500 INFO L93 Difference]: Finished difference Result 7107 states and 8337 transitions. [2024-10-23 21:03:50,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:03:50,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 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 270 [2024-10-23 21:03:50,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:03:50,516 INFO L225 Difference]: With dead ends: 7107 [2024-10-23 21:03:50,516 INFO L226 Difference]: Without dead ends: 3924 [2024-10-23 21:03:50,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:50,522 INFO L432 NwaCegarLoop]: 348 mSDtfsCounter, 139 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-23 21:03:50,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 369 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 575 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-23 21:03:50,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3924 states. [2024-10-23 21:03:50,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3924 to 3735. [2024-10-23 21:03:50,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3735 states, 3734 states have (on average 1.1606855918585968) internal successors, (4334), 3734 states have internal predecessors, (4334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:50,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3735 states to 3735 states and 4334 transitions. [2024-10-23 21:03:50,592 INFO L78 Accepts]: Start accepts. Automaton has 3735 states and 4334 transitions. Word has length 270 [2024-10-23 21:03:50,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:03:50,593 INFO L471 AbstractCegarLoop]: Abstraction has 3735 states and 4334 transitions. [2024-10-23 21:03:50,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:50,593 INFO L276 IsEmpty]: Start isEmpty. Operand 3735 states and 4334 transitions. [2024-10-23 21:03:50,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2024-10-23 21:03:50,598 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:03:50,598 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:03:50,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-23 21:03:50,599 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:03:50,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:03:50,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1519865807, now seen corresponding path program 1 times [2024-10-23 21:03:50,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:03:50,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945071414] [2024-10-23 21:03:50,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:03:50,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:03:50,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:03:50,931 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-10-23 21:03:50,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:03:50,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945071414] [2024-10-23 21:03:50,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945071414] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:03:50,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:03:50,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:03:50,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071875865] [2024-10-23 21:03:50,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:03:50,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:03:50,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:03:50,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:03:50,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:50,935 INFO L87 Difference]: Start difference. First operand 3735 states and 4334 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:51,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:03:51,670 INFO L93 Difference]: Finished difference Result 8578 states and 9917 transitions. [2024-10-23 21:03:51,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:03:51,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 283 [2024-10-23 21:03:51,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:03:51,686 INFO L225 Difference]: With dead ends: 8578 [2024-10-23 21:03:51,686 INFO L226 Difference]: Without dead ends: 4844 [2024-10-23 21:03:51,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:51,692 INFO L432 NwaCegarLoop]: 359 mSDtfsCounter, 158 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:03:51,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 387 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-23 21:03:51,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4844 states. [2024-10-23 21:03:51,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4844 to 4843. [2024-10-23 21:03:51,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4843 states, 4842 states have (on average 1.1526228831061545) internal successors, (5581), 4842 states have internal predecessors, (5581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:51,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4843 states to 4843 states and 5581 transitions. [2024-10-23 21:03:51,767 INFO L78 Accepts]: Start accepts. Automaton has 4843 states and 5581 transitions. Word has length 283 [2024-10-23 21:03:51,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:03:51,768 INFO L471 AbstractCegarLoop]: Abstraction has 4843 states and 5581 transitions. [2024-10-23 21:03:51,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:51,768 INFO L276 IsEmpty]: Start isEmpty. Operand 4843 states and 5581 transitions. [2024-10-23 21:03:51,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-10-23 21:03:51,774 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:03:51,774 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:03:51,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-23 21:03:51,774 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:03:51,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:03:51,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1091091309, now seen corresponding path program 1 times [2024-10-23 21:03:51,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:03:51,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255592346] [2024-10-23 21:03:51,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:03:51,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:03:51,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:03:52,075 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-10-23 21:03:52,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:03:52,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255592346] [2024-10-23 21:03:52,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255592346] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:03:52,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:03:52,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:03:52,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507173143] [2024-10-23 21:03:52,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:03:52,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:03:52,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:03:52,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:03:52,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:52,082 INFO L87 Difference]: Start difference. First operand 4843 states and 5581 transitions. Second operand has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:52,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:03:52,816 INFO L93 Difference]: Finished difference Result 10237 states and 11864 transitions. [2024-10-23 21:03:52,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:03:52,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 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 292 [2024-10-23 21:03:52,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:03:52,836 INFO L225 Difference]: With dead ends: 10237 [2024-10-23 21:03:52,836 INFO L226 Difference]: Without dead ends: 5763 [2024-10-23 21:03:52,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:52,843 INFO L432 NwaCegarLoop]: 355 mSDtfsCounter, 130 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:03:52,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 381 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-23 21:03:52,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5763 states. [2024-10-23 21:03:52,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5763 to 5211. [2024-10-23 21:03:52,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5211 states, 5210 states have (on average 1.1464491362763916) internal successors, (5973), 5210 states have internal predecessors, (5973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:52,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5211 states to 5211 states and 5973 transitions. [2024-10-23 21:03:52,932 INFO L78 Accepts]: Start accepts. Automaton has 5211 states and 5973 transitions. Word has length 292 [2024-10-23 21:03:52,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:03:52,933 INFO L471 AbstractCegarLoop]: Abstraction has 5211 states and 5973 transitions. [2024-10-23 21:03:52,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.333333333333336) internal successors, (190), 3 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:52,933 INFO L276 IsEmpty]: Start isEmpty. Operand 5211 states and 5973 transitions. [2024-10-23 21:03:52,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2024-10-23 21:03:52,940 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:03:52,941 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:03:52,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-23 21:03:52,942 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:03:52,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:03:52,942 INFO L85 PathProgramCache]: Analyzing trace with hash -268361832, now seen corresponding path program 1 times [2024-10-23 21:03:52,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:03:52,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305893442] [2024-10-23 21:03:52,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:03:52,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:03:53,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:03:53,125 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-10-23 21:03:53,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:03:53,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305893442] [2024-10-23 21:03:53,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305893442] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:03:53,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:03:53,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:03:53,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273944436] [2024-10-23 21:03:53,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:03:53,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:03:53,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:03:53,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:03:53,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:53,128 INFO L87 Difference]: Start difference. First operand 5211 states and 5973 transitions. Second operand has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:53,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:03:53,965 INFO L93 Difference]: Finished difference Result 12261 states and 14254 transitions. [2024-10-23 21:03:53,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:03:53,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 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 320 [2024-10-23 21:03:53,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:03:54,004 INFO L225 Difference]: With dead ends: 12261 [2024-10-23 21:03:54,007 INFO L226 Difference]: Without dead ends: 7419 [2024-10-23 21:03:54,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:54,017 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 147 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-23 21:03:54,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 339 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-23 21:03:54,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7419 states. [2024-10-23 21:03:54,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7419 to 7234. [2024-10-23 21:03:54,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7234 states, 7233 states have (on average 1.1385317295727915) internal successors, (8235), 7233 states have internal predecessors, (8235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:54,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7234 states to 7234 states and 8235 transitions. [2024-10-23 21:03:54,141 INFO L78 Accepts]: Start accepts. Automaton has 7234 states and 8235 transitions. Word has length 320 [2024-10-23 21:03:54,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:03:54,142 INFO L471 AbstractCegarLoop]: Abstraction has 7234 states and 8235 transitions. [2024-10-23 21:03:54,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.0) internal successors, (210), 3 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:54,143 INFO L276 IsEmpty]: Start isEmpty. Operand 7234 states and 8235 transitions. [2024-10-23 21:03:54,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-10-23 21:03:54,156 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:03:54,157 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:03:54,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-23 21:03:54,158 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:03:54,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:03:54,159 INFO L85 PathProgramCache]: Analyzing trace with hash -718598189, now seen corresponding path program 1 times [2024-10-23 21:03:54,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:03:54,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253474715] [2024-10-23 21:03:54,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:03:54,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:03:54,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:03:54,611 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 417 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-10-23 21:03:54,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:03:54,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253474715] [2024-10-23 21:03:54,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253474715] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:03:54,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:03:54,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:03:54,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123565160] [2024-10-23 21:03:54,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:03:54,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:03:54,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:03:54,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:03:54,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:54,615 INFO L87 Difference]: Start difference. First operand 7234 states and 8235 transitions. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:55,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:03:55,348 INFO L93 Difference]: Finished difference Result 15953 states and 18176 transitions. [2024-10-23 21:03:55,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:03:55,349 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 433 [2024-10-23 21:03:55,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:03:55,365 INFO L225 Difference]: With dead ends: 15953 [2024-10-23 21:03:55,365 INFO L226 Difference]: Without dead ends: 8904 [2024-10-23 21:03:55,373 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:55,374 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 66 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:03:55,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 178 Invalid, 633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-23 21:03:55,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8904 states. [2024-10-23 21:03:55,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8904 to 8890. [2024-10-23 21:03:55,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8890 states, 8889 states have (on average 1.1227359658004274) internal successors, (9980), 8889 states have internal predecessors, (9980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:55,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8890 states to 8890 states and 9980 transitions. [2024-10-23 21:03:55,496 INFO L78 Accepts]: Start accepts. Automaton has 8890 states and 9980 transitions. Word has length 433 [2024-10-23 21:03:55,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:03:55,496 INFO L471 AbstractCegarLoop]: Abstraction has 8890 states and 9980 transitions. [2024-10-23 21:03:55,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:55,497 INFO L276 IsEmpty]: Start isEmpty. Operand 8890 states and 9980 transitions. [2024-10-23 21:03:55,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2024-10-23 21:03:55,516 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:03:55,517 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:03:55,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-23 21:03:55,517 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:03:55,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:03:55,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1000956046, now seen corresponding path program 1 times [2024-10-23 21:03:55,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:03:55,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242119806] [2024-10-23 21:03:55,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:03:55,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:03:55,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:03:55,824 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 632 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2024-10-23 21:03:55,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:03:55,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242119806] [2024-10-23 21:03:55,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242119806] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:03:55,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:03:55,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:03:55,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491822288] [2024-10-23 21:03:55,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:03:55,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:03:55,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:03:55,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:03:55,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:55,828 INFO L87 Difference]: Start difference. First operand 8890 states and 9980 transitions. Second operand has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:56,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:03:56,603 INFO L93 Difference]: Finished difference Result 18698 states and 21105 transitions. [2024-10-23 21:03:56,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:03:56,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 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 485 [2024-10-23 21:03:56,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:03:56,622 INFO L225 Difference]: With dead ends: 18698 [2024-10-23 21:03:56,622 INFO L226 Difference]: Without dead ends: 10177 [2024-10-23 21:03:56,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:56,632 INFO L432 NwaCegarLoop]: 329 mSDtfsCounter, 70 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:03:56,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 351 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-23 21:03:56,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10177 states. [2024-10-23 21:03:56,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10177 to 9993. [2024-10-23 21:03:56,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9993 states, 9992 states have (on average 1.1253002401921537) internal successors, (11244), 9992 states have internal predecessors, (11244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:56,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9993 states to 9993 states and 11244 transitions. [2024-10-23 21:03:56,764 INFO L78 Accepts]: Start accepts. Automaton has 9993 states and 11244 transitions. Word has length 485 [2024-10-23 21:03:56,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:03:56,765 INFO L471 AbstractCegarLoop]: Abstraction has 9993 states and 11244 transitions. [2024-10-23 21:03:56,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.33333333333333) internal successors, (349), 3 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:56,766 INFO L276 IsEmpty]: Start isEmpty. Operand 9993 states and 11244 transitions. [2024-10-23 21:03:56,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2024-10-23 21:03:56,783 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:03:56,783 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:03:56,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-23 21:03:56,783 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:03:56,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:03:56,784 INFO L85 PathProgramCache]: Analyzing trace with hash 111486038, now seen corresponding path program 1 times [2024-10-23 21:03:56,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:03:56,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988602469] [2024-10-23 21:03:56,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:03:56,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:03:56,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:03:57,330 INFO L134 CoverageAnalysis]: Checked inductivity of 837 backedges. 586 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2024-10-23 21:03:57,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:03:57,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988602469] [2024-10-23 21:03:57,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988602469] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:03:57,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:03:57,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:03:57,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742973902] [2024-10-23 21:03:57,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:03:57,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:03:57,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:03:57,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:03:57,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:57,333 INFO L87 Difference]: Start difference. First operand 9993 states and 11244 transitions. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:58,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:03:58,129 INFO L93 Difference]: Finished difference Result 22026 states and 24893 transitions. [2024-10-23 21:03:58,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:03:58,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 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 521 [2024-10-23 21:03:58,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:03:58,151 INFO L225 Difference]: With dead ends: 22026 [2024-10-23 21:03:58,151 INFO L226 Difference]: Without dead ends: 12402 [2024-10-23 21:03:58,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:58,161 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 138 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:03:58,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 131 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-23 21:03:58,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12402 states. [2024-10-23 21:03:58,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12402 to 12214. [2024-10-23 21:03:58,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12214 states, 12213 states have (on average 1.120036027184148) internal successors, (13679), 12213 states have internal predecessors, (13679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:58,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12214 states to 12214 states and 13679 transitions. [2024-10-23 21:03:58,303 INFO L78 Accepts]: Start accepts. Automaton has 12214 states and 13679 transitions. Word has length 521 [2024-10-23 21:03:58,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:03:58,303 INFO L471 AbstractCegarLoop]: Abstraction has 12214 states and 13679 transitions. [2024-10-23 21:03:58,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:58,304 INFO L276 IsEmpty]: Start isEmpty. Operand 12214 states and 13679 transitions. [2024-10-23 21:03:58,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 526 [2024-10-23 21:03:58,317 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:03:58,317 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:03:58,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-23 21:03:58,318 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:03:58,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:03:58,318 INFO L85 PathProgramCache]: Analyzing trace with hash -970212154, now seen corresponding path program 1 times [2024-10-23 21:03:58,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:03:58,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393122573] [2024-10-23 21:03:58,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:03:58,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:03:58,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:03:58,859 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 619 proven. 0 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2024-10-23 21:03:58,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:03:58,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393122573] [2024-10-23 21:03:58,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393122573] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:03:58,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:03:58,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:03:58,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062343139] [2024-10-23 21:03:58,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:03:58,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:03:58,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:03:58,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:03:58,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:58,862 INFO L87 Difference]: Start difference. First operand 12214 states and 13679 transitions. Second operand has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:59,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:03:59,654 INFO L93 Difference]: Finished difference Result 27190 states and 30475 transitions. [2024-10-23 21:03:59,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:03:59,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 0 states have call successors, (0), 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 525 [2024-10-23 21:03:59,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:03:59,682 INFO L225 Difference]: With dead ends: 27190 [2024-10-23 21:03:59,682 INFO L226 Difference]: Without dead ends: 15345 [2024-10-23 21:03:59,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:03:59,695 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 128 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:03:59,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 76 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-23 21:03:59,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15345 states. [2024-10-23 21:03:59,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15345 to 14414. [2024-10-23 21:03:59,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14414 states, 14413 states have (on average 1.1133698744189273) internal successors, (16047), 14413 states have internal predecessors, (16047), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:59,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14414 states to 14414 states and 16047 transitions. [2024-10-23 21:03:59,869 INFO L78 Accepts]: Start accepts. Automaton has 14414 states and 16047 transitions. Word has length 525 [2024-10-23 21:03:59,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:03:59,870 INFO L471 AbstractCegarLoop]: Abstraction has 14414 states and 16047 transitions. [2024-10-23 21:03:59,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:03:59,870 INFO L276 IsEmpty]: Start isEmpty. Operand 14414 states and 16047 transitions. [2024-10-23 21:03:59,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2024-10-23 21:03:59,885 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:03:59,886 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:03:59,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-23 21:03:59,886 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:03:59,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:03:59,887 INFO L85 PathProgramCache]: Analyzing trace with hash 756091869, now seen corresponding path program 1 times [2024-10-23 21:03:59,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:03:59,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772586464] [2024-10-23 21:03:59,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:03:59,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:04:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:04:01,271 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 320 proven. 406 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-10-23 21:04:01,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:04:01,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772586464] [2024-10-23 21:04:01,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772586464] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-23 21:04:01,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783685572] [2024-10-23 21:04:01,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:04:01,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-23 21:04:01,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:04:01,277 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-23 21:04:01,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-23 21:04:01,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:04:01,473 INFO L255 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-23 21:04:01,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-23 21:04:11,595 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 320 proven. 406 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-10-23 21:04:11,595 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-23 21:04:12,684 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 645 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-10-23 21:04:12,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783685572] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-23 21:04:12,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-23 21:04:12,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 9 [2024-10-23 21:04:12,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478334984] [2024-10-23 21:04:12,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:04:12,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:04:12,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:04:12,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:04:12,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-10-23 21:04:12,687 INFO L87 Difference]: Start difference. First operand 14414 states and 16047 transitions. Second operand has 4 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:04:13,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:04:13,712 INFO L93 Difference]: Finished difference Result 29933 states and 33326 transitions. [2024-10-23 21:04:13,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:04:13,713 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 0 states have call successors, (0), 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 531 [2024-10-23 21:04:13,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:04:13,739 INFO L225 Difference]: With dead ends: 29933 [2024-10-23 21:04:13,739 INFO L226 Difference]: Without dead ends: 15888 [2024-10-23 21:04:13,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1065 GetRequests, 1058 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-10-23 21:04:13,752 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 236 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 236 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-23 21:04:13,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [236 Valid, 59 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-23 21:04:13,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15888 states. [2024-10-23 21:04:13,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15888 to 11838. [2024-10-23 21:04:13,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11838 states, 11837 states have (on average 1.119709385824111) internal successors, (13254), 11837 states have internal predecessors, (13254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:04:14,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11838 states to 11838 states and 13254 transitions. [2024-10-23 21:04:14,002 INFO L78 Accepts]: Start accepts. Automaton has 11838 states and 13254 transitions. Word has length 531 [2024-10-23 21:04:14,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:04:14,003 INFO L471 AbstractCegarLoop]: Abstraction has 11838 states and 13254 transitions. [2024-10-23 21:04:14,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:04:14,004 INFO L276 IsEmpty]: Start isEmpty. Operand 11838 states and 13254 transitions. [2024-10-23 21:04:14,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 598 [2024-10-23 21:04:14,021 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:04:14,021 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:04:14,041 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-23 21:04:14,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-23 21:04:14,223 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:04:14,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:04:14,223 INFO L85 PathProgramCache]: Analyzing trace with hash -1867635112, now seen corresponding path program 1 times [2024-10-23 21:04:14,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:04:14,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049382562] [2024-10-23 21:04:14,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:04:14,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:04:14,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:04:14,639 INFO L134 CoverageAnalysis]: Checked inductivity of 909 backedges. 699 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-10-23 21:04:14,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:04:14,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049382562] [2024-10-23 21:04:14,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049382562] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:04:14,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:04:14,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:04:14,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936452692] [2024-10-23 21:04:14,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:04:14,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:04:14,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:04:14,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:04:14,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:04:14,642 INFO L87 Difference]: Start difference. First operand 11838 states and 13254 transitions. Second operand has 4 states, 4 states have (on average 97.25) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:04:15,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:04:15,646 INFO L93 Difference]: Finished difference Result 29948 states and 33347 transitions. [2024-10-23 21:04:15,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:04:15,647 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 97.25) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 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 597 [2024-10-23 21:04:15,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:04:15,673 INFO L225 Difference]: With dead ends: 29948 [2024-10-23 21:04:15,673 INFO L226 Difference]: Without dead ends: 18111 [2024-10-23 21:04:15,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:04:15,685 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 170 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 1253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-23 21:04:15,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 82 Invalid, 1253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-23 21:04:15,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18111 states. [2024-10-23 21:04:15,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18111 to 16444. [2024-10-23 21:04:16,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16444 states, 16443 states have (on average 1.1089217296113847) internal successors, (18234), 16443 states have internal predecessors, (18234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:04:16,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16444 states to 16444 states and 18234 transitions. [2024-10-23 21:04:16,030 INFO L78 Accepts]: Start accepts. Automaton has 16444 states and 18234 transitions. Word has length 597 [2024-10-23 21:04:16,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:04:16,031 INFO L471 AbstractCegarLoop]: Abstraction has 16444 states and 18234 transitions. [2024-10-23 21:04:16,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 97.25) internal successors, (389), 3 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:04:16,031 INFO L276 IsEmpty]: Start isEmpty. Operand 16444 states and 18234 transitions. [2024-10-23 21:04:16,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 649 [2024-10-23 21:04:16,052 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:04:16,052 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:04:16,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-23 21:04:16,052 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:04:16,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:04:16,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1670348849, now seen corresponding path program 1 times [2024-10-23 21:04:16,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:04:16,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262919901] [2024-10-23 21:04:16,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:04:16,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:04:16,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:04:16,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1313 backedges. 642 proven. 0 refuted. 0 times theorem prover too weak. 671 trivial. 0 not checked. [2024-10-23 21:04:16,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:04:16,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262919901] [2024-10-23 21:04:16,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262919901] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:04:16,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:04:16,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:04:16,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885337461] [2024-10-23 21:04:16,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:04:16,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:04:16,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:04:16,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:04:16,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:04:16,397 INFO L87 Difference]: Start difference. First operand 16444 states and 18234 transitions. Second operand has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:04:17,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:04:17,055 INFO L93 Difference]: Finished difference Result 34912 states and 38697 transitions. [2024-10-23 21:04:17,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:04:17,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 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 648 [2024-10-23 21:04:17,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:04:17,081 INFO L225 Difference]: With dead ends: 34912 [2024-10-23 21:04:17,082 INFO L226 Difference]: Without dead ends: 18837 [2024-10-23 21:04:17,097 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:04:17,098 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 146 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-23 21:04:17,098 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 126 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-23 21:04:17,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18837 states. [2024-10-23 21:04:17,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18837 to 16260. [2024-10-23 21:04:17,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16260 states, 16259 states have (on average 1.10283535272772) internal successors, (17931), 16259 states have internal predecessors, (17931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:04:17,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16260 states to 16260 states and 17931 transitions. [2024-10-23 21:04:17,316 INFO L78 Accepts]: Start accepts. Automaton has 16260 states and 17931 transitions. Word has length 648 [2024-10-23 21:04:17,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:04:17,317 INFO L471 AbstractCegarLoop]: Abstraction has 16260 states and 17931 transitions. [2024-10-23 21:04:17,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.66666666666667) internal successors, (302), 3 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:04:17,317 INFO L276 IsEmpty]: Start isEmpty. Operand 16260 states and 17931 transitions. [2024-10-23 21:04:17,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 682 [2024-10-23 21:04:17,336 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:04:17,336 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:04:17,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-23 21:04:17,337 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:04:17,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:04:17,337 INFO L85 PathProgramCache]: Analyzing trace with hash -96785697, now seen corresponding path program 1 times [2024-10-23 21:04:17,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:04:17,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903082149] [2024-10-23 21:04:17,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:04:17,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:04:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:04:17,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1332 backedges. 642 proven. 0 refuted. 0 times theorem prover too weak. 690 trivial. 0 not checked. [2024-10-23 21:04:17,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:04:17,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903082149] [2024-10-23 21:04:17,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903082149] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:04:17,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:04:17,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:04:17,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116407058] [2024-10-23 21:04:17,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:04:17,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:04:17,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:04:17,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:04:17,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:04:17,774 INFO L87 Difference]: Start difference. First operand 16260 states and 17931 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:04:18,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:04:18,350 INFO L93 Difference]: Finished difference Result 33622 states and 37062 transitions. [2024-10-23 21:04:18,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:04:18,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 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 681 [2024-10-23 21:04:18,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:04:18,367 INFO L225 Difference]: With dead ends: 33622 [2024-10-23 21:04:18,367 INFO L226 Difference]: Without dead ends: 17731 [2024-10-23 21:04:18,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:04:18,379 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 113 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-23 21:04:18,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 142 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-23 21:04:18,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17731 states. [2024-10-23 21:04:18,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17731 to 15514. [2024-10-23 21:04:18,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15514 states, 15513 states have (on average 1.0981112615225939) internal successors, (17035), 15513 states have internal predecessors, (17035), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:04:18,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15514 states to 15514 states and 17035 transitions. [2024-10-23 21:04:18,564 INFO L78 Accepts]: Start accepts. Automaton has 15514 states and 17035 transitions. Word has length 681 [2024-10-23 21:04:18,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:04:18,564 INFO L471 AbstractCegarLoop]: Abstraction has 15514 states and 17035 transitions. [2024-10-23 21:04:18,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:04:18,565 INFO L276 IsEmpty]: Start isEmpty. Operand 15514 states and 17035 transitions. [2024-10-23 21:04:18,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 731 [2024-10-23 21:04:18,582 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:04:18,583 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:04:18,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-23 21:04:18,583 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:04:18,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:04:18,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1468241767, now seen corresponding path program 1 times [2024-10-23 21:04:18,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:04:18,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969694518] [2024-10-23 21:04:18,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:04:18,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:04:18,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:04:19,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1771 backedges. 1154 proven. 0 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2024-10-23 21:04:19,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:04:19,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969694518] [2024-10-23 21:04:19,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969694518] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:04:19,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:04:19,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:04:19,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759593696] [2024-10-23 21:04:19,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:04:19,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:04:19,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:04:19,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:04:19,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:04:19,055 INFO L87 Difference]: Start difference. First operand 15514 states and 17035 transitions. Second operand has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:04:19,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:04:19,755 INFO L93 Difference]: Finished difference Result 30470 states and 33381 transitions. [2024-10-23 21:04:19,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:04:19,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 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 730 [2024-10-23 21:04:19,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:04:19,757 INFO L225 Difference]: With dead ends: 30470 [2024-10-23 21:04:19,757 INFO L226 Difference]: Without dead ends: 0 [2024-10-23 21:04:19,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:04:19,770 INFO L432 NwaCegarLoop]: 328 mSDtfsCounter, 46 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-23 21:04:19,771 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 343 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-23 21:04:19,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-23 21:04:19,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-23 21:04:19,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:04:19,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-23 21:04:19,772 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 730 [2024-10-23 21:04:19,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:04:19,772 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-23 21:04:19,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 125.0) internal successors, (375), 3 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:04:19,773 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-23 21:04:19,773 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-23 21:04:19,776 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-23 21:04:19,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-23 21:04:19,781 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:04:19,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-23 21:04:26,018 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-23 21:04:26,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:04:26 BoogieIcfgContainer [2024-10-23 21:04:26,051 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-23 21:04:26,051 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-23 21:04:26,052 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-23 21:04:26,053 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-23 21:04:26,053 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:03:41" (3/4) ... [2024-10-23 21:04:26,055 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-23 21:04:26,081 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-10-23 21:04:26,083 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-23 21:04:26,084 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-23 21:04:26,085 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-23 21:04:26,263 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-23 21:04:26,263 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-23 21:04:26,264 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-23 21:04:26,264 INFO L158 Benchmark]: Toolchain (without parser) took 47684.19ms. Allocated memory was 169.9MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 110.5MB in the beginning and 945.4MB in the end (delta: -834.9MB). Peak memory consumption was 449.3MB. Max. memory is 16.1GB. [2024-10-23 21:04:26,264 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 169.9MB. Free memory is still 135.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-23 21:04:26,265 INFO L158 Benchmark]: CACSL2BoogieTranslator took 761.53ms. Allocated memory is still 169.9MB. Free memory was 110.1MB in the beginning and 63.2MB in the end (delta: 46.9MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2024-10-23 21:04:26,265 INFO L158 Benchmark]: Boogie Procedure Inliner took 172.73ms. Allocated memory is still 169.9MB. Free memory was 63.0MB in the beginning and 128.5MB in the end (delta: -65.5MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. [2024-10-23 21:04:26,265 INFO L158 Benchmark]: Boogie Preprocessor took 227.30ms. Allocated memory was 169.9MB in the beginning and 253.8MB in the end (delta: 83.9MB). Free memory was 128.5MB in the beginning and 188.4MB in the end (delta: -59.9MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. [2024-10-23 21:04:26,266 INFO L158 Benchmark]: RCFGBuilder took 1883.83ms. Allocated memory is still 253.8MB. Free memory was 188.4MB in the beginning and 123.3MB in the end (delta: 65.1MB). Peak memory consumption was 94.4MB. Max. memory is 16.1GB. [2024-10-23 21:04:26,266 INFO L158 Benchmark]: TraceAbstraction took 44419.02ms. Allocated memory was 253.8MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 122.2MB in the beginning and 962.2MB in the end (delta: -840.0MB). Peak memory consumption was 851.2MB. Max. memory is 16.1GB. [2024-10-23 21:04:26,266 INFO L158 Benchmark]: Witness Printer took 212.36ms. Allocated memory is still 1.5GB. Free memory was 962.2MB in the beginning and 945.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-23 21:04:26,268 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 169.9MB. Free memory is still 135.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 761.53ms. Allocated memory is still 169.9MB. Free memory was 110.1MB in the beginning and 63.2MB in the end (delta: 46.9MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 172.73ms. Allocated memory is still 169.9MB. Free memory was 63.0MB in the beginning and 128.5MB in the end (delta: -65.5MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 227.30ms. Allocated memory was 169.9MB in the beginning and 253.8MB in the end (delta: 83.9MB). Free memory was 128.5MB in the beginning and 188.4MB in the end (delta: -59.9MB). Peak memory consumption was 34.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1883.83ms. Allocated memory is still 253.8MB. Free memory was 188.4MB in the beginning and 123.3MB in the end (delta: 65.1MB). Peak memory consumption was 94.4MB. Max. memory is 16.1GB. * TraceAbstraction took 44419.02ms. Allocated memory was 253.8MB in the beginning and 1.5GB in the end (delta: 1.2GB). Free memory was 122.2MB in the beginning and 962.2MB in the end (delta: -840.0MB). Peak memory consumption was 851.2MB. Max. memory is 16.1GB. * Witness Printer took 212.36ms. Allocated memory is still 1.5GB. Free memory was 962.2MB in the beginning and 945.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 202]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 221 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 38.1s, OverallIterations: 20, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 15.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2505 SdHoareTripleChecker+Valid, 13.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2505 mSDsluCounter, 4606 SdHoareTripleChecker+Invalid, 11.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 428 mSDsCounter, 1780 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11323 IncrementalHoareTripleChecker+Invalid, 13103 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1780 mSolverCounterUnsat, 4178 mSDtfsCounter, 11323 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1117 GetRequests, 1091 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16444occurred in iteration=17, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 20 MinimizatonAttempts, 13700 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 17.5s InterpolantComputationTime, 7899 NumberOfCodeBlocks, 7899 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 8408 ConstructedInterpolants, 60 QuantifiedInterpolants, 38234 SizeOfPredicates, 1 NumberOfNonLiveVariables, 695 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 22 InterpolantComputations, 20 PerfectInterpolantSequences, 11473/12285 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1044]: Loop Invariant Derived loop invariant: (((((((((((((((((a23 <= 138) && (a4 == 1)) || (((((long long) a23 + 43) <= 0) && (a25 <= 10)) && (246 <= a29))) || (((0 <= (((((long long) a29 * 9) >= 0) ? (((long long) a29 * 9) / 50) : ((((long long) a29 * 9) / 50) - 1)) + 109807)) && (a25 == 10)) && (a29 <= 130))) || (((((a29 <= 140) && (a25 <= 10)) && (0 <= (((((long long) a29 * 9) >= 0) ? (((long long) a29 * 9) / 50) : ((((long long) a29 * 9) / 50) - 1)) + 109807))) && (a23 <= 138)) && (0 <= ((long long) a23 + 42)))) || ((a4 == 1) && (a25 == 10))) || ((((a25 == 13) && (((long long) a23 + 43) <= 0)) && (a29 <= 274)) && (246 <= a29))) || ((((a25 == 13) && (0 <= (((((long long) a29 * 9) >= 0) ? (((long long) a29 * 9) / 50) : ((((long long) a29 * 9) / 50) - 1)) + 109807))) && (a23 <= 138)) && (0 <= ((long long) a23 + 42)))) || ((((((long long) a23 + 43) <= 0) && (a25 <= 10)) && (0 <= (((((long long) a29 * 9) >= 0) ? (((long long) a29 * 9) / 50) : ((((long long) a29 * 9) / 50) - 1)) + 109807))) && (a29 <= 130))) || ((((a29 <= 140) && (a25 == 11)) && (0 <= (((((long long) a29 * 9) >= 0) ? (((long long) a29 * 9) / 50) : ((((long long) a29 * 9) / 50) - 1)) + 109807))) && (a23 <= 138))) || ((a25 == 13) && (a4 == 1))) || ((570382 <= a29) && (a4 == 1))) || (((a25 <= 10) && (0 <= (((((long long) a29 * 9) >= 0) ? (((long long) a29 * 9) / 50) : ((((long long) a29 * 9) / 50) - 1)) + 109807))) && (a4 == 1))) || (((a25 == 11) && (a23 <= 138)) && (246 <= a29))) || ((a25 == 12) && (0 <= (((((long long) a29 * 9) >= 0) ? (((long long) a29 * 9) / 50) : ((((long long) a29 * 9) / 50) - 1)) + 109807)))) || (((a25 == 11) && (a4 == 1)) && (246 <= a29))) || (((((a25 == 11) && (0 <= (((((long long) a29 * 9) >= 0) ? (((long long) a29 * 9) / 50) : ((((long long) a29 * 9) / 50) - 1)) + 109807))) && (217784 <= a23)) && (a29 <= 220)) && (a4 == 1))) RESULT: Ultimate proved your program to be correct! [2024-10-23 21:04:26,298 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE