./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/Problem18_label19.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 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/Problem18_label19.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 bf866e82ccfa9edc467f98983da1defe22311f2c1544dd5c4d747bc8c4f74632 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 00:01:21,364 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 00:01:21,422 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 00:01:21,425 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 00:01:21,426 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 00:01:21,449 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 00:01:21,450 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 00:01:21,450 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 00:01:21,451 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 00:01:21,451 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 00:01:21,451 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 00:01:21,452 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 00:01:21,452 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 00:01:21,452 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 00:01:21,453 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 00:01:21,453 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 00:01:21,453 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 00:01:21,454 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 00:01:21,454 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 00:01:21,454 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 00:01:21,454 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 00:01:21,455 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 00:01:21,455 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 00:01:21,455 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 00:01:21,456 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 00:01:21,456 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 00:01:21,456 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 00:01:21,457 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 00:01:21,457 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 00:01:21,458 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 00:01:21,458 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 00:01:21,458 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 00:01:21,458 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 00:01:21,459 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 00:01:21,459 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 00:01:21,459 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 00:01:21,459 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 00:01:21,460 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 00:01:21,460 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 00:01:21,461 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 00:01:21,461 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 00:01:21,462 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 00:01:21,462 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf866e82ccfa9edc467f98983da1defe22311f2c1544dd5c4d747bc8c4f74632 [2024-10-14 00:01:21,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 00:01:21,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 00:01:21,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 00:01:21,751 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 00:01:21,751 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 00:01:21,752 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label19.c [2024-10-14 00:01:23,216 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 00:01:23,579 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 00:01:23,581 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label19.c [2024-10-14 00:01:23,605 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6246e3df9/f642c9576a4c4310bbf6fc1bfdf1f4ba/FLAG7486cae77 [2024-10-14 00:01:23,622 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6246e3df9/f642c9576a4c4310bbf6fc1bfdf1f4ba [2024-10-14 00:01:23,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 00:01:23,626 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 00:01:23,628 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 00:01:23,629 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 00:01:23,633 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 00:01:23,634 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:01:23" (1/1) ... [2024-10-14 00:01:23,635 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@371602bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:23, skipping insertion in model container [2024-10-14 00:01:23,635 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:01:23" (1/1) ... [2024-10-14 00:01:23,707 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 00:01:23,884 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/Problem18_label19.c[1342,1355] [2024-10-14 00:01:24,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 00:01:24,454 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 00:01:24,465 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/Problem18_label19.c[1342,1355] [2024-10-14 00:01:24,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 00:01:24,739 INFO L204 MainTranslator]: Completed translation [2024-10-14 00:01:24,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:24 WrapperNode [2024-10-14 00:01:24,740 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 00:01:24,741 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 00:01:24,741 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 00:01:24,741 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 00:01:24,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:24" (1/1) ... [2024-10-14 00:01:24,797 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:24" (1/1) ... [2024-10-14 00:01:24,921 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 4135 [2024-10-14 00:01:24,922 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 00:01:24,923 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 00:01:24,923 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 00:01:24,923 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 00:01:24,986 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:24" (1/1) ... [2024-10-14 00:01:24,986 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:24" (1/1) ... [2024-10-14 00:01:25,011 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:24" (1/1) ... [2024-10-14 00:01:25,067 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]. [2024-10-14 00:01:25,067 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:24" (1/1) ... [2024-10-14 00:01:25,067 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:24" (1/1) ... [2024-10-14 00:01:25,135 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:24" (1/1) ... [2024-10-14 00:01:25,153 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:24" (1/1) ... [2024-10-14 00:01:25,170 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:24" (1/1) ... [2024-10-14 00:01:25,181 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:24" (1/1) ... [2024-10-14 00:01:25,206 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 00:01:25,207 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 00:01:25,208 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 00:01:25,208 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 00:01:25,208 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:24" (1/1) ... [2024-10-14 00:01:25,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 00:01:25,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 00:01:25,246 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) [2024-10-14 00:01:25,252 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 [2024-10-14 00:01:25,335 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 00:01:25,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 00:01:25,336 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 00:01:25,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 00:01:25,399 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 00:01:25,401 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 00:01:28,582 INFO L? ?]: Removed 639 outVars from TransFormulas that were not future-live. [2024-10-14 00:01:28,582 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 00:01:28,659 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 00:01:28,663 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 00:01:28,664 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:01:28 BoogieIcfgContainer [2024-10-14 00:01:28,665 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 00:01:28,667 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 00:01:28,668 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 00:01:28,671 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 00:01:28,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:01:23" (1/3) ... [2024-10-14 00:01:28,672 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66ad2e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:01:28, skipping insertion in model container [2024-10-14 00:01:28,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:01:24" (2/3) ... [2024-10-14 00:01:28,673 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66ad2e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:01:28, skipping insertion in model container [2024-10-14 00:01:28,673 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:01:28" (3/3) ... [2024-10-14 00:01:28,675 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label19.c [2024-10-14 00:01:28,696 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 00:01:28,697 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 00:01:28,835 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 00:01:28,843 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;@7bceb39d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 00:01:28,844 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 00:01:28,854 INFO L276 IsEmpty]: Start isEmpty. Operand has 695 states, 693 states have (on average 1.9942279942279941) internal successors, (1382), 694 states have internal predecessors, (1382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:28,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-14 00:01:28,861 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:01:28,863 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:01:28,864 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:01:28,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:01:28,871 INFO L85 PathProgramCache]: Analyzing trace with hash -565168872, now seen corresponding path program 1 times [2024-10-14 00:01:28,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:01:28,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705159110] [2024-10-14 00:01:28,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:01:28,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:01:28,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:01:29,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:01:29,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:01:29,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705159110] [2024-10-14 00:01:29,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705159110] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:01:29,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:01:29,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 00:01:29,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881889159] [2024-10-14 00:01:29,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:01:29,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 00:01:29,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:01:29,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 00:01:29,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 00:01:29,094 INFO L87 Difference]: Start difference. First operand has 695 states, 693 states have (on average 1.9942279942279941) internal successors, (1382), 694 states have internal predecessors, (1382), 0 states have call successors, (0), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:29,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:01:29,174 INFO L93 Difference]: Finished difference Result 1389 states and 2763 transitions. [2024-10-14 00:01:29,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 00:01:29,187 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2024-10-14 00:01:29,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:01:29,203 INFO L225 Difference]: With dead ends: 1389 [2024-10-14 00:01:29,203 INFO L226 Difference]: Without dead ends: 693 [2024-10-14 00:01:29,209 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 [2024-10-14 00:01:29,212 INFO L432 NwaCegarLoop]: 1317 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, 1317 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 [2024-10-14 00:01:29,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1317 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 00:01:29,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2024-10-14 00:01:29,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693. [2024-10-14 00:01:29,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 693 states, 692 states have (on average 1.903179190751445) internal successors, (1317), 692 states have internal predecessors, (1317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:29,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 1317 transitions. [2024-10-14 00:01:29,280 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 1317 transitions. Word has length 8 [2024-10-14 00:01:29,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:01:29,281 INFO L471 AbstractCegarLoop]: Abstraction has 693 states and 1317 transitions. [2024-10-14 00:01:29,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:29,281 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 1317 transitions. [2024-10-14 00:01:29,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-14 00:01:29,281 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:01:29,282 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:01:29,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 00:01:29,282 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:01:29,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:01:29,283 INFO L85 PathProgramCache]: Analyzing trace with hash -676885122, now seen corresponding path program 1 times [2024-10-14 00:01:29,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:01:29,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236321668] [2024-10-14 00:01:29,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:01:29,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:01:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:01:29,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:01:29,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:01:29,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236321668] [2024-10-14 00:01:29,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236321668] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:01:29,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:01:29,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 00:01:29,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909402585] [2024-10-14 00:01:29,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:01:29,350 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:01:29,350 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:01:29,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:01:29,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:01:29,351 INFO L87 Difference]: Start difference. First operand 693 states and 1317 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:32,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:01:32,406 INFO L93 Difference]: Finished difference Result 2075 states and 3948 transitions. [2024-10-14 00:01:32,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:01:32,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2024-10-14 00:01:32,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:01:32,419 INFO L225 Difference]: With dead ends: 2075 [2024-10-14 00:01:32,419 INFO L226 Difference]: Without dead ends: 1383 [2024-10-14 00:01:32,421 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 [2024-10-14 00:01:32,422 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 703 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2343 mSolverCounterSat, 487 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 2830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 487 IncrementalHoareTripleChecker+Valid, 2343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-14 00:01:32,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 51 Invalid, 2830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [487 Valid, 2343 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-14 00:01:32,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2024-10-14 00:01:32,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1383. [2024-10-14 00:01:32,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1383 states, 1382 states have (on average 1.877713458755427) internal successors, (2595), 1382 states have internal predecessors, (2595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:32,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 2595 transitions. [2024-10-14 00:01:32,473 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 2595 transitions. Word has length 8 [2024-10-14 00:01:32,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:01:32,473 INFO L471 AbstractCegarLoop]: Abstraction has 1383 states and 2595 transitions. [2024-10-14 00:01:32,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:32,474 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 2595 transitions. [2024-10-14 00:01:32,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-14 00:01:32,475 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:01:32,476 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:01:32,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 00:01:32,476 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:01:32,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:01:32,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1001338875, now seen corresponding path program 1 times [2024-10-14 00:01:32,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:01:32,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002630327] [2024-10-14 00:01:32,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:01:32,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:01:32,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:01:32,722 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:01:32,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:01:32,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002630327] [2024-10-14 00:01:32,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002630327] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:01:32,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:01:32,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 00:01:32,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547389763] [2024-10-14 00:01:32,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:01:32,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:01:32,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:01:32,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:01:32,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:01:32,728 INFO L87 Difference]: Start difference. First operand 1383 states and 2595 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:35,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:01:35,707 INFO L93 Difference]: Finished difference Result 4145 states and 7782 transitions. [2024-10-14 00:01:35,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:01:35,707 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2024-10-14 00:01:35,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:01:35,719 INFO L225 Difference]: With dead ends: 4145 [2024-10-14 00:01:35,719 INFO L226 Difference]: Without dead ends: 2763 [2024-10-14 00:01:35,722 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 [2024-10-14 00:01:35,727 INFO L432 NwaCegarLoop]: 530 mSDtfsCounter, 709 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1704 mSolverCounterSat, 918 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 2622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 918 IncrementalHoareTripleChecker+Valid, 1704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-10-14 00:01:35,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 535 Invalid, 2622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [918 Valid, 1704 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-10-14 00:01:35,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2024-10-14 00:01:35,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2763. [2024-10-14 00:01:35,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2762 states have (on average 1.5155684286748732) internal successors, (4186), 2762 states have internal predecessors, (4186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:35,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 4186 transitions. [2024-10-14 00:01:35,803 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 4186 transitions. Word has length 73 [2024-10-14 00:01:35,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:01:35,804 INFO L471 AbstractCegarLoop]: Abstraction has 2763 states and 4186 transitions. [2024-10-14 00:01:35,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:35,805 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 4186 transitions. [2024-10-14 00:01:35,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-10-14 00:01:35,807 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:01:35,808 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 00:01:35,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 00:01:35,808 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:01:35,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:01:35,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1360165145, now seen corresponding path program 1 times [2024-10-14 00:01:35,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:01:35,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816991396] [2024-10-14 00:01:35,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:01:35,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:01:35,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:01:35,932 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:01:35,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:01:35,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816991396] [2024-10-14 00:01:35,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816991396] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:01:35,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:01:35,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 00:01:35,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685730176] [2024-10-14 00:01:35,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:01:35,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:01:35,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:01:35,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:01:35,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:01:35,935 INFO L87 Difference]: Start difference. First operand 2763 states and 4186 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:38,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:01:38,746 INFO L93 Difference]: Finished difference Result 8285 states and 12555 transitions. [2024-10-14 00:01:38,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:01:38,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-10-14 00:01:38,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:01:38,770 INFO L225 Difference]: With dead ends: 8285 [2024-10-14 00:01:38,771 INFO L226 Difference]: Without dead ends: 5523 [2024-10-14 00:01:38,780 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 [2024-10-14 00:01:38,781 INFO L432 NwaCegarLoop]: 579 mSDtfsCounter, 631 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2212 mSolverCounterSat, 514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 631 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 2726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 514 IncrementalHoareTripleChecker+Valid, 2212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-14 00:01:38,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [631 Valid, 585 Invalid, 2726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [514 Valid, 2212 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-14 00:01:38,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5523 states. [2024-10-14 00:01:38,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5523 to 4833. [2024-10-14 00:01:38,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4833 states, 4832 states have (on average 1.3766556291390728) internal successors, (6652), 4832 states have internal predecessors, (6652), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:38,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4833 states to 4833 states and 6652 transitions. [2024-10-14 00:01:38,909 INFO L78 Accepts]: Start accepts. Automaton has 4833 states and 6652 transitions. Word has length 76 [2024-10-14 00:01:38,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:01:38,909 INFO L471 AbstractCegarLoop]: Abstraction has 4833 states and 6652 transitions. [2024-10-14 00:01:38,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:38,910 INFO L276 IsEmpty]: Start isEmpty. Operand 4833 states and 6652 transitions. [2024-10-14 00:01:38,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-14 00:01:38,912 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:01:38,912 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:01:38,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 00:01:38,913 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:01:38,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:01:38,914 INFO L85 PathProgramCache]: Analyzing trace with hash 363978891, now seen corresponding path program 1 times [2024-10-14 00:01:38,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:01:38,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907654834] [2024-10-14 00:01:38,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:01:38,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:01:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:01:39,026 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 00:01:39,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:01:39,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907654834] [2024-10-14 00:01:39,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907654834] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:01:39,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:01:39,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:01:39,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745737577] [2024-10-14 00:01:39,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:01:39,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:01:39,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:01:39,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:01:39,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:01:39,030 INFO L87 Difference]: Start difference. First operand 4833 states and 6652 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:41,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:01:41,520 INFO L93 Difference]: Finished difference Result 12425 states and 17487 transitions. [2024-10-14 00:01:41,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:01:41,520 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2024-10-14 00:01:41,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:01:41,541 INFO L225 Difference]: With dead ends: 12425 [2024-10-14 00:01:41,542 INFO L226 Difference]: Without dead ends: 6213 [2024-10-14 00:01:41,552 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 [2024-10-14 00:01:41,555 INFO L432 NwaCegarLoop]: 1205 mSDtfsCounter, 740 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1728 mSolverCounterSat, 904 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 2632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 904 IncrementalHoareTripleChecker+Valid, 1728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-14 00:01:41,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 1211 Invalid, 2632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [904 Valid, 1728 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-14 00:01:41,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6213 states. [2024-10-14 00:01:41,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6213 to 6213. [2024-10-14 00:01:41,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6213 states, 6212 states have (on average 1.1481004507405022) internal successors, (7132), 6212 states have internal predecessors, (7132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:41,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6213 states to 6213 states and 7132 transitions. [2024-10-14 00:01:41,666 INFO L78 Accepts]: Start accepts. Automaton has 6213 states and 7132 transitions. Word has length 101 [2024-10-14 00:01:41,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:01:41,666 INFO L471 AbstractCegarLoop]: Abstraction has 6213 states and 7132 transitions. [2024-10-14 00:01:41,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:41,667 INFO L276 IsEmpty]: Start isEmpty. Operand 6213 states and 7132 transitions. [2024-10-14 00:01:41,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-10-14 00:01:41,673 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:01:41,674 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-14 00:01:41,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 00:01:41,674 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:01:41,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:01:41,675 INFO L85 PathProgramCache]: Analyzing trace with hash 101253281, now seen corresponding path program 1 times [2024-10-14 00:01:41,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:01:41,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757857888] [2024-10-14 00:01:41,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:01:41,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:01:41,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:01:41,909 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-14 00:01:41,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:01:41,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757857888] [2024-10-14 00:01:41,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757857888] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:01:41,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:01:41,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 00:01:41,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455202813] [2024-10-14 00:01:41,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:01:41,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:01:41,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:01:41,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:01:41,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:01:41,918 INFO L87 Difference]: Start difference. First operand 6213 states and 7132 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:43,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:01:43,705 INFO L93 Difference]: Finished difference Result 18637 states and 21394 transitions. [2024-10-14 00:01:43,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:01:43,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 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 162 [2024-10-14 00:01:43,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:01:43,751 INFO L225 Difference]: With dead ends: 18637 [2024-10-14 00:01:43,752 INFO L226 Difference]: Without dead ends: 12425 [2024-10-14 00:01:43,764 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 [2024-10-14 00:01:43,765 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 620 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1747 mSolverCounterSat, 237 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 1984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 237 IncrementalHoareTripleChecker+Valid, 1747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-14 00:01:43,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 239 Invalid, 1984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [237 Valid, 1747 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-14 00:01:43,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12425 states. [2024-10-14 00:01:43,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12425 to 11733. [2024-10-14 00:01:43,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11733 states, 11732 states have (on average 1.1012615069894307) internal successors, (12920), 11732 states have internal predecessors, (12920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:44,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11733 states to 11733 states and 12920 transitions. [2024-10-14 00:01:44,010 INFO L78 Accepts]: Start accepts. Automaton has 11733 states and 12920 transitions. Word has length 162 [2024-10-14 00:01:44,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:01:44,010 INFO L471 AbstractCegarLoop]: Abstraction has 11733 states and 12920 transitions. [2024-10-14 00:01:44,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 2 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:44,010 INFO L276 IsEmpty]: Start isEmpty. Operand 11733 states and 12920 transitions. [2024-10-14 00:01:44,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2024-10-14 00:01:44,020 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:01:44,021 INFO L215 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:01:44,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 00:01:44,021 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:01:44,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:01:44,022 INFO L85 PathProgramCache]: Analyzing trace with hash 274157543, now seen corresponding path program 1 times [2024-10-14 00:01:44,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:01:44,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189221358] [2024-10-14 00:01:44,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:01:44,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:01:44,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:01:44,892 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 224 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-10-14 00:01:44,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:01:44,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189221358] [2024-10-14 00:01:44,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189221358] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:01:44,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:01:44,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:01:44,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534814506] [2024-10-14 00:01:44,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:01:44,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 00:01:44,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:01:44,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 00:01:44,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 00:01:44,895 INFO L87 Difference]: Start difference. First operand 11733 states and 12920 transitions. Second operand has 4 states, 4 states have (on average 63.5) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:47,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:01:47,389 INFO L93 Difference]: Finished difference Result 24845 states and 27239 transitions. [2024-10-14 00:01:47,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 00:01:47,389 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 63.5) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 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 361 [2024-10-14 00:01:47,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:01:47,414 INFO L225 Difference]: With dead ends: 24845 [2024-10-14 00:01:47,414 INFO L226 Difference]: Without dead ends: 13113 [2024-10-14 00:01:47,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 00:01:47,423 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 1873 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 3354 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1873 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 3368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-10-14 00:01:47,423 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1873 Valid, 316 Invalid, 3368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 3354 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-10-14 00:01:47,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13113 states. [2024-10-14 00:01:47,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13113 to 13113. [2024-10-14 00:01:47,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13113 states, 13112 states have (on average 1.091824283099451) internal successors, (14316), 13112 states have internal predecessors, (14316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:47,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13113 states to 13113 states and 14316 transitions. [2024-10-14 00:01:47,612 INFO L78 Accepts]: Start accepts. Automaton has 13113 states and 14316 transitions. Word has length 361 [2024-10-14 00:01:47,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:01:47,613 INFO L471 AbstractCegarLoop]: Abstraction has 13113 states and 14316 transitions. [2024-10-14 00:01:47,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 63.5) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:47,614 INFO L276 IsEmpty]: Start isEmpty. Operand 13113 states and 14316 transitions. [2024-10-14 00:01:47,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2024-10-14 00:01:47,621 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:01:47,621 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:01:47,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 00:01:47,622 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:01:47,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:01:47,622 INFO L85 PathProgramCache]: Analyzing trace with hash -1154759950, now seen corresponding path program 1 times [2024-10-14 00:01:47,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:01:47,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115219000] [2024-10-14 00:01:47,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:01:47,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:01:47,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:01:48,076 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-10-14 00:01:48,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:01:48,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115219000] [2024-10-14 00:01:48,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115219000] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:01:48,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:01:48,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:01:48,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909278986] [2024-10-14 00:01:48,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:01:48,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:01:48,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:01:48,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:01:48,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:01:48,080 INFO L87 Difference]: Start difference. First operand 13113 states and 14316 transitions. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:50,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:01:50,139 INFO L93 Difference]: Finished difference Result 33125 states and 36567 transitions. [2024-10-14 00:01:50,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:01:50,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 461 [2024-10-14 00:01:50,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:01:50,176 INFO L225 Difference]: With dead ends: 33125 [2024-10-14 00:01:50,176 INFO L226 Difference]: Without dead ends: 20013 [2024-10-14 00:01:50,192 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 [2024-10-14 00:01:50,195 INFO L432 NwaCegarLoop]: 846 mSDtfsCounter, 722 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1749 mSolverCounterSat, 213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 722 SdHoareTripleChecker+Valid, 852 SdHoareTripleChecker+Invalid, 1962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 213 IncrementalHoareTripleChecker+Valid, 1749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-10-14 00:01:50,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [722 Valid, 852 Invalid, 1962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [213 Valid, 1749 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-10-14 00:01:50,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20013 states. [2024-10-14 00:01:50,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20013 to 19323. [2024-10-14 00:01:50,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19323 states, 19322 states have (on average 1.0874650657281855) internal successors, (21012), 19322 states have internal predecessors, (21012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:50,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19323 states to 19323 states and 21012 transitions. [2024-10-14 00:01:50,464 INFO L78 Accepts]: Start accepts. Automaton has 19323 states and 21012 transitions. Word has length 461 [2024-10-14 00:01:50,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:01:50,465 INFO L471 AbstractCegarLoop]: Abstraction has 19323 states and 21012 transitions. [2024-10-14 00:01:50,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:50,465 INFO L276 IsEmpty]: Start isEmpty. Operand 19323 states and 21012 transitions. [2024-10-14 00:01:50,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2024-10-14 00:01:50,476 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:01:50,477 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:01:50,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 00:01:50,478 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:01:50,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:01:50,478 INFO L85 PathProgramCache]: Analyzing trace with hash 972360247, now seen corresponding path program 1 times [2024-10-14 00:01:50,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:01:50,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043175871] [2024-10-14 00:01:50,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:01:50,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:01:50,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:01:51,118 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 310 proven. 0 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-10-14 00:01:51,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:01:51,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043175871] [2024-10-14 00:01:51,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043175871] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:01:51,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:01:51,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:01:51,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470208833] [2024-10-14 00:01:51,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:01:51,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:01:51,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:01:51,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:01:51,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:01:51,122 INFO L87 Difference]: Start difference. First operand 19323 states and 21012 transitions. Second operand has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:52,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:01:52,992 INFO L93 Difference]: Finished difference Result 46235 states and 50377 transitions. [2024-10-14 00:01:52,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:01:52,994 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 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 591 [2024-10-14 00:01:52,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:01:53,036 INFO L225 Difference]: With dead ends: 46235 [2024-10-14 00:01:53,037 INFO L226 Difference]: Without dead ends: 26913 [2024-10-14 00:01:53,060 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 [2024-10-14 00:01:53,061 INFO L432 NwaCegarLoop]: 292 mSDtfsCounter, 560 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1842 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 2034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 1842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-14 00:01:53,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [560 Valid, 298 Invalid, 2034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [192 Valid, 1842 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-14 00:01:53,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26913 states. [2024-10-14 00:01:53,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26913 to 26913. [2024-10-14 00:01:53,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26913 states, 26912 states have (on average 1.074353448275862) internal successors, (28913), 26912 states have internal predecessors, (28913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:53,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26913 states to 26913 states and 28913 transitions. [2024-10-14 00:01:53,521 INFO L78 Accepts]: Start accepts. Automaton has 26913 states and 28913 transitions. Word has length 591 [2024-10-14 00:01:53,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:01:53,523 INFO L471 AbstractCegarLoop]: Abstraction has 26913 states and 28913 transitions. [2024-10-14 00:01:53,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:53,523 INFO L276 IsEmpty]: Start isEmpty. Operand 26913 states and 28913 transitions. [2024-10-14 00:01:53,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1108 [2024-10-14 00:01:53,554 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:01:53,555 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:01:53,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 00:01:53,556 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:01:53,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:01:53,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1830678239, now seen corresponding path program 1 times [2024-10-14 00:01:53,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:01:53,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997118636] [2024-10-14 00:01:53,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:01:53,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:01:53,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:01:54,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1121 backedges. 449 proven. 0 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2024-10-14 00:01:54,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:01:54,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997118636] [2024-10-14 00:01:54,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997118636] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:01:54,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:01:54,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:01:54,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331593466] [2024-10-14 00:01:54,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:01:54,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:01:54,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:01:54,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:01:54,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:01:54,418 INFO L87 Difference]: Start difference. First operand 26913 states and 28913 transitions. Second operand has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:56,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:01:56,008 INFO L93 Difference]: Finished difference Result 55205 states and 59265 transitions. [2024-10-14 00:01:56,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:01:56,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 0 states have call successors, (0), 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 1107 [2024-10-14 00:01:56,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:01:56,042 INFO L225 Difference]: With dead ends: 55205 [2024-10-14 00:01:56,043 INFO L226 Difference]: Without dead ends: 28983 [2024-10-14 00:01:56,062 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 [2024-10-14 00:01:56,062 INFO L432 NwaCegarLoop]: 964 mSDtfsCounter, 567 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1800 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 2028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 1800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-14 00:01:56,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 969 Invalid, 2028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [228 Valid, 1800 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-14 00:01:56,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28983 states. [2024-10-14 00:01:56,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28983 to 28983. [2024-10-14 00:01:56,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28983 states, 28982 states have (on average 1.0535159754330274) internal successors, (30533), 28982 states have internal predecessors, (30533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:56,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28983 states to 28983 states and 30533 transitions. [2024-10-14 00:01:56,384 INFO L78 Accepts]: Start accepts. Automaton has 28983 states and 30533 transitions. Word has length 1107 [2024-10-14 00:01:56,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:01:56,385 INFO L471 AbstractCegarLoop]: Abstraction has 28983 states and 30533 transitions. [2024-10-14 00:01:56,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 219.33333333333334) internal successors, (658), 3 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:01:56,386 INFO L276 IsEmpty]: Start isEmpty. Operand 28983 states and 30533 transitions. [2024-10-14 00:01:56,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1109 [2024-10-14 00:01:56,410 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:01:56,411 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:01:56,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 00:01:56,411 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:01:56,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:01:56,415 INFO L85 PathProgramCache]: Analyzing trace with hash -862052941, now seen corresponding path program 1 times [2024-10-14 00:01:56,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:01:56,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596964454] [2024-10-14 00:01:56,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:01:56,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:01:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:01:58,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1121 backedges. 221 proven. 437 refuted. 0 times theorem prover too weak. 463 trivial. 0 not checked. [2024-10-14 00:01:58,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:01:58,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596964454] [2024-10-14 00:01:58,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596964454] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 00:01:58,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170169000] [2024-10-14 00:01:58,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:01:58,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 00:01:58,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 00:01:58,997 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) [2024-10-14 00:01:58,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 00:01:59,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:01:59,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 1293 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 00:01:59,364 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 00:01:59,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1121 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 1087 trivial. 0 not checked. [2024-10-14 00:01:59,451 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 00:01:59,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170169000] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:01:59,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 00:01:59,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-10-14 00:01:59,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263029507] [2024-10-14 00:01:59,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:01:59,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:01:59,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:01:59,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:01:59,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 00:01:59,455 INFO L87 Difference]: Start difference. First operand 28983 states and 30533 transitions. Second operand has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:01,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:02:01,250 INFO L93 Difference]: Finished difference Result 66245 states and 70369 transitions. [2024-10-14 00:02:01,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:02:01,251 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 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 1108 [2024-10-14 00:02:01,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:02:01,306 INFO L225 Difference]: With dead ends: 66245 [2024-10-14 00:02:01,307 INFO L226 Difference]: Without dead ends: 37953 [2024-10-14 00:02:01,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1113 GetRequests, 1108 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 00:02:01,332 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 696 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1744 mSolverCounterSat, 288 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 2032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 288 IncrementalHoareTripleChecker+Valid, 1744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 00:02:01,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 242 Invalid, 2032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [288 Valid, 1744 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 00:02:01,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37953 states. [2024-10-14 00:02:01,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37953 to 36573. [2024-10-14 00:02:01,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36573 states, 36572 states have (on average 1.0585693973531665) internal successors, (38714), 36572 states have internal predecessors, (38714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:01,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36573 states to 36573 states and 38714 transitions. [2024-10-14 00:02:01,752 INFO L78 Accepts]: Start accepts. Automaton has 36573 states and 38714 transitions. Word has length 1108 [2024-10-14 00:02:01,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:02:01,753 INFO L471 AbstractCegarLoop]: Abstraction has 36573 states and 38714 transitions. [2024-10-14 00:02:01,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:01,753 INFO L276 IsEmpty]: Start isEmpty. Operand 36573 states and 38714 transitions. [2024-10-14 00:02:01,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1167 [2024-10-14 00:02:01,769 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:02:01,770 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:02:01,790 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 00:02:01,971 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,SelfDestructingSolverStorable10 [2024-10-14 00:02:01,972 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:02:01,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:02:01,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1618198698, now seen corresponding path program 1 times [2024-10-14 00:02:01,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:02:01,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436650910] [2024-10-14 00:02:01,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:01,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:02:02,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:02,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 1239 trivial. 0 not checked. [2024-10-14 00:02:02,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:02:02,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436650910] [2024-10-14 00:02:02,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436650910] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:02:02,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:02:02,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:02:02,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157928389] [2024-10-14 00:02:02,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:02:02,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:02:02,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:02:02,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:02:02,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:02:02,856 INFO L87 Difference]: Start difference. First operand 36573 states and 38714 transitions. Second operand has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:04,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:02:04,584 INFO L93 Difference]: Finished difference Result 72455 states and 76736 transitions. [2024-10-14 00:02:04,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:02:04,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 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 1166 [2024-10-14 00:02:04,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:02:04,638 INFO L225 Difference]: With dead ends: 72455 [2024-10-14 00:02:04,638 INFO L226 Difference]: Without dead ends: 36573 [2024-10-14 00:02:04,664 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 [2024-10-14 00:02:04,665 INFO L432 NwaCegarLoop]: 885 mSDtfsCounter, 750 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1622 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 1892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 1622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 00:02:04,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 891 Invalid, 1892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 1622 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 00:02:04,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36573 states. [2024-10-14 00:02:05,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36573 to 35883. [2024-10-14 00:02:05,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35883 states, 35882 states have (on average 1.0363413410623712) internal successors, (37186), 35882 states have internal predecessors, (37186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:05,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35883 states to 35883 states and 37186 transitions. [2024-10-14 00:02:05,187 INFO L78 Accepts]: Start accepts. Automaton has 35883 states and 37186 transitions. Word has length 1166 [2024-10-14 00:02:05,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:02:05,188 INFO L471 AbstractCegarLoop]: Abstraction has 35883 states and 37186 transitions. [2024-10-14 00:02:05,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:05,188 INFO L276 IsEmpty]: Start isEmpty. Operand 35883 states and 37186 transitions. [2024-10-14 00:02:05,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1184 [2024-10-14 00:02:05,204 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:02:05,205 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:02:05,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 00:02:05,205 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:02:05,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:02:05,206 INFO L85 PathProgramCache]: Analyzing trace with hash 886884755, now seen corresponding path program 1 times [2024-10-14 00:02:05,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:02:05,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366496406] [2024-10-14 00:02:05,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:05,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:02:05,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:05,932 INFO L134 CoverageAnalysis]: Checked inductivity of 1307 backedges. 584 proven. 0 refuted. 0 times theorem prover too weak. 723 trivial. 0 not checked. [2024-10-14 00:02:05,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:02:05,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366496406] [2024-10-14 00:02:05,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366496406] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:02:05,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:02:05,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:02:05,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958728176] [2024-10-14 00:02:05,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:02:05,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:02:05,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:02:05,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:02:05,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:02:05,937 INFO L87 Difference]: Start difference. First operand 35883 states and 37186 transitions. Second operand has 3 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:07,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:02:07,759 INFO L93 Difference]: Finished difference Result 72455 states and 75113 transitions. [2024-10-14 00:02:07,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:02:07,760 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 0 states have call successors, (0), 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 1183 [2024-10-14 00:02:07,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:02:07,806 INFO L225 Difference]: With dead ends: 72455 [2024-10-14 00:02:07,806 INFO L226 Difference]: Without dead ends: 35193 [2024-10-14 00:02:07,832 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 [2024-10-14 00:02:07,833 INFO L432 NwaCegarLoop]: 929 mSDtfsCounter, 520 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1660 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 520 SdHoareTripleChecker+Valid, 934 SdHoareTripleChecker+Invalid, 1945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 1660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 00:02:07,833 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [520 Valid, 934 Invalid, 1945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 1660 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 00:02:07,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35193 states. [2024-10-14 00:02:08,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35193 to 35193. [2024-10-14 00:02:08,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35193 states, 35192 states have (on average 1.023272334621505) internal successors, (36011), 35192 states have internal predecessors, (36011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:08,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35193 states to 35193 states and 36011 transitions. [2024-10-14 00:02:08,239 INFO L78 Accepts]: Start accepts. Automaton has 35193 states and 36011 transitions. Word has length 1183 [2024-10-14 00:02:08,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:02:08,240 INFO L471 AbstractCegarLoop]: Abstraction has 35193 states and 36011 transitions. [2024-10-14 00:02:08,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.0) internal successors, (717), 3 states have internal predecessors, (717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:08,241 INFO L276 IsEmpty]: Start isEmpty. Operand 35193 states and 36011 transitions. [2024-10-14 00:02:08,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1259 [2024-10-14 00:02:08,267 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:02:08,267 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:02:08,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 00:02:08,268 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:02:08,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:02:08,268 INFO L85 PathProgramCache]: Analyzing trace with hash -998387028, now seen corresponding path program 1 times [2024-10-14 00:02:08,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:02:08,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583064993] [2024-10-14 00:02:08,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:08,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:02:08,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:09,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1675 backedges. 477 proven. 729 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2024-10-14 00:02:09,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:02:09,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583064993] [2024-10-14 00:02:09,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583064993] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 00:02:09,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971148629] [2024-10-14 00:02:09,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:09,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 00:02:09,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 00:02:09,794 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 00:02:09,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 00:02:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:10,040 INFO L255 TraceCheckSpWp]: Trace formula consists of 1471 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 00:02:10,051 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 00:02:10,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1675 backedges. 666 proven. 0 refuted. 0 times theorem prover too weak. 1009 trivial. 0 not checked. [2024-10-14 00:02:10,307 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 00:02:10,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971148629] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:02:10,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 00:02:10,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-10-14 00:02:10,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584751180] [2024-10-14 00:02:10,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:02:10,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:02:10,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:02:10,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:02:10,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 00:02:10,310 INFO L87 Difference]: Start difference. First operand 35193 states and 36011 transitions. Second operand has 3 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:11,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:02:11,893 INFO L93 Difference]: Finished difference Result 73835 states and 75662 transitions. [2024-10-14 00:02:11,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:02:11,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 0 states have call successors, (0), 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 1258 [2024-10-14 00:02:11,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:02:11,939 INFO L225 Difference]: With dead ends: 73835 [2024-10-14 00:02:11,939 INFO L226 Difference]: Without dead ends: 39333 [2024-10-14 00:02:11,966 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1263 GetRequests, 1258 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 00:02:11,966 INFO L432 NwaCegarLoop]: 935 mSDtfsCounter, 504 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1678 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 1788 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-14 00:02:11,967 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 941 Invalid, 1788 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1678 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-14 00:02:12,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39333 states. [2024-10-14 00:02:12,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39333 to 38643. [2024-10-14 00:02:12,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38643 states, 38642 states have (on average 1.022799026965478) internal successors, (39523), 38642 states have internal predecessors, (39523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:12,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38643 states to 38643 states and 39523 transitions. [2024-10-14 00:02:12,280 INFO L78 Accepts]: Start accepts. Automaton has 38643 states and 39523 transitions. Word has length 1258 [2024-10-14 00:02:12,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:02:12,281 INFO L471 AbstractCegarLoop]: Abstraction has 38643 states and 39523 transitions. [2024-10-14 00:02:12,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 239.33333333333334) internal successors, (718), 3 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:12,281 INFO L276 IsEmpty]: Start isEmpty. Operand 38643 states and 39523 transitions. [2024-10-14 00:02:12,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1347 [2024-10-14 00:02:12,300 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:02:12,300 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:02:12,314 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 00:02:12,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-14 00:02:12,501 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:02:12,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:02:12,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1729348183, now seen corresponding path program 1 times [2024-10-14 00:02:12,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:02:12,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567926382] [2024-10-14 00:02:12,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:12,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:02:12,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:13,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1739 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 1705 trivial. 0 not checked. [2024-10-14 00:02:13,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:02:13,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567926382] [2024-10-14 00:02:13,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567926382] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:02:13,752 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:02:13,752 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:02:13,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225004041] [2024-10-14 00:02:13,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:02:13,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:02:13,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:02:13,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:02:13,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:02:13,754 INFO L87 Difference]: Start difference. First operand 38643 states and 39523 transitions. Second operand has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:14,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:02:14,649 INFO L93 Difference]: Finished difference Result 39340 states and 40220 transitions. [2024-10-14 00:02:14,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:02:14,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 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 1346 [2024-10-14 00:02:14,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:02:14,693 INFO L225 Difference]: With dead ends: 39340 [2024-10-14 00:02:14,694 INFO L226 Difference]: Without dead ends: 38643 [2024-10-14 00:02:14,705 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 [2024-10-14 00:02:14,705 INFO L432 NwaCegarLoop]: 979 mSDtfsCounter, 0 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 985 SdHoareTripleChecker+Invalid, 972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 00:02:14,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 985 Invalid, 972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 972 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 00:02:14,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38643 states. [2024-10-14 00:02:15,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38643 to 38643. [2024-10-14 00:02:15,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38643 states, 38642 states have (on average 1.0227472698100513) internal successors, (39521), 38642 states have internal predecessors, (39521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:15,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38643 states to 38643 states and 39521 transitions. [2024-10-14 00:02:15,256 INFO L78 Accepts]: Start accepts. Automaton has 38643 states and 39521 transitions. Word has length 1346 [2024-10-14 00:02:15,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:02:15,257 INFO L471 AbstractCegarLoop]: Abstraction has 38643 states and 39521 transitions. [2024-10-14 00:02:15,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.0) internal successors, (528), 3 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:15,258 INFO L276 IsEmpty]: Start isEmpty. Operand 38643 states and 39521 transitions. [2024-10-14 00:02:15,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1366 [2024-10-14 00:02:15,299 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:02:15,300 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:02:15,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 00:02:15,301 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:02:15,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:02:15,301 INFO L85 PathProgramCache]: Analyzing trace with hash 310070784, now seen corresponding path program 1 times [2024-10-14 00:02:15,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:02:15,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005700448] [2024-10-14 00:02:15,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:15,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:02:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:16,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1796 backedges. 1276 proven. 0 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2024-10-14 00:02:16,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:02:16,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005700448] [2024-10-14 00:02:16,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005700448] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:02:16,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:02:16,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:02:16,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414408227] [2024-10-14 00:02:16,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:02:16,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:02:16,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:02:16,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:02:16,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:02:16,619 INFO L87 Difference]: Start difference. First operand 38643 states and 39521 transitions. Second operand has 3 states, 3 states have (on average 285.0) internal successors, (855), 3 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:18,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:02:18,415 INFO L93 Difference]: Finished difference Result 93845 states and 96169 transitions. [2024-10-14 00:02:18,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:02:18,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 285.0) internal successors, (855), 3 states have internal predecessors, (855), 0 states have call successors, (0), 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 1365 [2024-10-14 00:02:18,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:02:18,494 INFO L225 Difference]: With dead ends: 93845 [2024-10-14 00:02:18,494 INFO L226 Difference]: Without dead ends: 55893 [2024-10-14 00:02:18,528 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 [2024-10-14 00:02:18,529 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 616 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1733 mSolverCounterSat, 268 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 2001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 268 IncrementalHoareTripleChecker+Valid, 1733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-14 00:02:18,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [616 Valid, 200 Invalid, 2001 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [268 Valid, 1733 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-14 00:02:18,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55893 states. [2024-10-14 00:02:19,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55893 to 55893. [2024-10-14 00:02:19,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55893 states, 55892 states have (on average 1.0210763615544265) internal successors, (57070), 55892 states have internal predecessors, (57070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:19,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55893 states to 55893 states and 57070 transitions. [2024-10-14 00:02:19,256 INFO L78 Accepts]: Start accepts. Automaton has 55893 states and 57070 transitions. Word has length 1365 [2024-10-14 00:02:19,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:02:19,257 INFO L471 AbstractCegarLoop]: Abstraction has 55893 states and 57070 transitions. [2024-10-14 00:02:19,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 285.0) internal successors, (855), 3 states have internal predecessors, (855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:19,257 INFO L276 IsEmpty]: Start isEmpty. Operand 55893 states and 57070 transitions. [2024-10-14 00:02:19,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1459 [2024-10-14 00:02:19,287 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:02:19,287 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:02:19,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 00:02:19,288 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:02:19,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:02:19,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1614845997, now seen corresponding path program 1 times [2024-10-14 00:02:19,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:02:19,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382163931] [2024-10-14 00:02:19,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:19,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:02:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:20,107 INFO L134 CoverageAnalysis]: Checked inductivity of 2246 backedges. 1505 proven. 0 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2024-10-14 00:02:20,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:02:20,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382163931] [2024-10-14 00:02:20,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382163931] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:02:20,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:02:20,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:02:20,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874998865] [2024-10-14 00:02:20,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:02:20,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:02:20,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:02:20,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:02:20,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:02:20,111 INFO L87 Difference]: Start difference. First operand 55893 states and 57070 transitions. Second operand has 3 states, 3 states have (on average 280.6666666666667) internal successors, (842), 3 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:22,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:02:22,060 INFO L93 Difference]: Finished difference Result 128345 states and 131268 transitions. [2024-10-14 00:02:22,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:02:22,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 280.6666666666667) internal successors, (842), 3 states have internal predecessors, (842), 0 states have call successors, (0), 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 1458 [2024-10-14 00:02:22,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:02:22,154 INFO L225 Difference]: With dead ends: 128345 [2024-10-14 00:02:22,154 INFO L226 Difference]: Without dead ends: 73143 [2024-10-14 00:02:22,193 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 [2024-10-14 00:02:22,194 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 628 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1746 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 2029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 1746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 00:02:22,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 153 Invalid, 2029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 1746 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 00:02:22,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73143 states. [2024-10-14 00:02:22,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73143 to 71073. [2024-10-14 00:02:22,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71073 states, 71072 states have (on average 1.022653084196308) internal successors, (72682), 71072 states have internal predecessors, (72682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:23,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71073 states to 71073 states and 72682 transitions. [2024-10-14 00:02:23,003 INFO L78 Accepts]: Start accepts. Automaton has 71073 states and 72682 transitions. Word has length 1458 [2024-10-14 00:02:23,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:02:23,004 INFO L471 AbstractCegarLoop]: Abstraction has 71073 states and 72682 transitions. [2024-10-14 00:02:23,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 280.6666666666667) internal successors, (842), 3 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:23,005 INFO L276 IsEmpty]: Start isEmpty. Operand 71073 states and 72682 transitions. [2024-10-14 00:02:23,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1474 [2024-10-14 00:02:23,034 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:02:23,035 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:02:23,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 00:02:23,035 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:02:23,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:02:23,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1723231794, now seen corresponding path program 1 times [2024-10-14 00:02:23,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:02:23,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235148934] [2024-10-14 00:02:23,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:23,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:02:23,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:25,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2051 backedges. 1531 proven. 0 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2024-10-14 00:02:25,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:02:25,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235148934] [2024-10-14 00:02:25,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235148934] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:02:25,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 00:02:25,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 00:02:25,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893059448] [2024-10-14 00:02:25,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:02:25,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:02:25,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:02:25,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:02:25,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 00:02:25,049 INFO L87 Difference]: Start difference. First operand 71073 states and 72682 transitions. Second operand has 3 states, 3 states have (on average 321.0) internal successors, (963), 3 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:26,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:02:26,750 INFO L93 Difference]: Finished difference Result 143525 states and 146764 transitions. [2024-10-14 00:02:26,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:02:26,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 321.0) internal successors, (963), 3 states have internal predecessors, (963), 0 states have call successors, (0), 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 1473 [2024-10-14 00:02:26,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:02:26,955 INFO L225 Difference]: With dead ends: 143525 [2024-10-14 00:02:26,956 INFO L226 Difference]: Without dead ends: 73143 [2024-10-14 00:02:26,974 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 [2024-10-14 00:02:26,974 INFO L432 NwaCegarLoop]: 915 mSDtfsCounter, 573 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1762 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 1920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 1762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-14 00:02:26,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 921 Invalid, 1920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 1762 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-14 00:02:27,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73143 states. [2024-10-14 00:02:27,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73143 to 71763. [2024-10-14 00:02:27,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71763 states, 71762 states have (on average 1.0192720381260276) internal successors, (73145), 71762 states have internal predecessors, (73145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:27,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71763 states to 71763 states and 73145 transitions. [2024-10-14 00:02:27,721 INFO L78 Accepts]: Start accepts. Automaton has 71763 states and 73145 transitions. Word has length 1473 [2024-10-14 00:02:27,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:02:27,721 INFO L471 AbstractCegarLoop]: Abstraction has 71763 states and 73145 transitions. [2024-10-14 00:02:27,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 321.0) internal successors, (963), 3 states have internal predecessors, (963), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:27,722 INFO L276 IsEmpty]: Start isEmpty. Operand 71763 states and 73145 transitions. [2024-10-14 00:02:27,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1526 [2024-10-14 00:02:27,917 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:02:27,918 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:02:27,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 00:02:27,918 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:02:27,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:02:27,919 INFO L85 PathProgramCache]: Analyzing trace with hash 894933208, now seen corresponding path program 1 times [2024-10-14 00:02:27,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:02:27,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641679107] [2024-10-14 00:02:27,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:27,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:02:28,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:29,503 INFO L134 CoverageAnalysis]: Checked inductivity of 2549 backedges. 1867 proven. 107 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2024-10-14 00:02:29,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:02:29,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641679107] [2024-10-14 00:02:29,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641679107] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 00:02:29,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1480749235] [2024-10-14 00:02:29,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:29,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 00:02:29,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 00:02:29,507 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 00:02:29,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 00:02:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:29,827 INFO L255 TraceCheckSpWp]: Trace formula consists of 1734 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-14 00:02:29,838 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 00:02:30,087 INFO L134 CoverageAnalysis]: Checked inductivity of 2549 backedges. 1647 proven. 0 refuted. 0 times theorem prover too weak. 902 trivial. 0 not checked. [2024-10-14 00:02:30,088 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 00:02:30,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1480749235] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 00:02:30,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 00:02:30,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-10-14 00:02:30,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769123336] [2024-10-14 00:02:30,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 00:02:30,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 00:02:30,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 00:02:30,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 00:02:30,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 00:02:30,091 INFO L87 Difference]: Start difference. First operand 71763 states and 73145 transitions. Second operand has 3 states, 3 states have (on average 326.0) internal successors, (978), 3 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:31,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 00:02:31,783 INFO L93 Difference]: Finished difference Result 142835 states and 145598 transitions. [2024-10-14 00:02:31,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 00:02:31,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 326.0) internal successors, (978), 3 states have internal predecessors, (978), 0 states have call successors, (0), 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 1525 [2024-10-14 00:02:31,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 00:02:31,858 INFO L225 Difference]: With dead ends: 142835 [2024-10-14 00:02:31,859 INFO L226 Difference]: Without dead ends: 71763 [2024-10-14 00:02:31,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1529 GetRequests, 1525 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 00:02:31,894 INFO L432 NwaCegarLoop]: 866 mSDtfsCounter, 454 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1740 mSolverCounterSat, 226 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 872 SdHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 226 IncrementalHoareTripleChecker+Valid, 1740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-14 00:02:31,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 872 Invalid, 1966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [226 Valid, 1740 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-14 00:02:31,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71763 states. [2024-10-14 00:02:32,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71763 to 71073. [2024-10-14 00:02:32,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71073 states, 71072 states have (on average 1.0165606708689778) internal successors, (72249), 71072 states have internal predecessors, (72249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:32,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71073 states to 71073 states and 72249 transitions. [2024-10-14 00:02:32,651 INFO L78 Accepts]: Start accepts. Automaton has 71073 states and 72249 transitions. Word has length 1525 [2024-10-14 00:02:32,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 00:02:32,652 INFO L471 AbstractCegarLoop]: Abstraction has 71073 states and 72249 transitions. [2024-10-14 00:02:32,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 326.0) internal successors, (978), 3 states have internal predecessors, (978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 00:02:32,652 INFO L276 IsEmpty]: Start isEmpty. Operand 71073 states and 72249 transitions. [2024-10-14 00:02:32,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1536 [2024-10-14 00:02:32,672 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 00:02:32,673 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 00:02:32,689 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-14 00:02:32,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 00:02:32,874 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 00:02:32,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 00:02:32,874 INFO L85 PathProgramCache]: Analyzing trace with hash 565226961, now seen corresponding path program 1 times [2024-10-14 00:02:32,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 00:02:32,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084990355] [2024-10-14 00:02:32,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:32,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 00:02:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:35,844 INFO L134 CoverageAnalysis]: Checked inductivity of 2120 backedges. 1359 proven. 538 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2024-10-14 00:02:35,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 00:02:35,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084990355] [2024-10-14 00:02:35,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084990355] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 00:02:35,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921433728] [2024-10-14 00:02:35,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 00:02:35,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 00:02:35,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 00:02:35,847 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 00:02:35,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 00:02:36,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 00:02:36,200 INFO L255 TraceCheckSpWp]: Trace formula consists of 1726 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 00:02:36,218 INFO L278 TraceCheckSpWp]: Computing forward predicates...