./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.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 8c74c5a9435f0a63b4462639dc1dbde4e8823a1089df2fad63ca5f5dce7dc603 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 16:13:40,924 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 16:13:41,001 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 16:13:41,005 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 16:13:41,005 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 16:13:41,031 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 16:13:41,032 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 16:13:41,032 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 16:13:41,033 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 16:13:41,034 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 16:13:41,034 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 16:13:41,035 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 16:13:41,035 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 16:13:41,036 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 16:13:41,038 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 16:13:41,038 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 16:13:41,038 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 16:13:41,038 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 16:13:41,039 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 16:13:41,039 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 16:13:41,039 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 16:13:41,043 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 16:13:41,043 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 16:13:41,044 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 16:13:41,044 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 16:13:41,044 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 16:13:41,044 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 16:13:41,044 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 16:13:41,045 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 16:13:41,045 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 16:13:41,045 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 16:13:41,045 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 16:13:41,046 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:13:41,046 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 16:13:41,046 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 16:13:41,046 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 16:13:41,046 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 16:13:41,046 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 16:13:41,047 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 16:13:41,047 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 16:13:41,047 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 16:13:41,048 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 16:13:41,048 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c74c5a9435f0a63b4462639dc1dbde4e8823a1089df2fad63ca5f5dce7dc603 [2024-11-18 16:13:41,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 16:13:41,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 16:13:41,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 16:13:41,317 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 16:13:41,317 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 16:13:41,318 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c [2024-11-18 16:13:42,750 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 16:13:43,207 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 16:13:43,208 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c [2024-11-18 16:13:43,244 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/227d91da2/8ef9fe10437141eaba1370b1ce1f882e/FLAG026ca9939 [2024-11-18 16:13:43,322 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/227d91da2/8ef9fe10437141eaba1370b1ce1f882e [2024-11-18 16:13:43,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 16:13:43,327 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 16:13:43,329 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 16:13:43,330 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 16:13:43,336 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 16:13:43,337 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:13:43" (1/1) ... [2024-11-18 16:13:43,338 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f54412c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:43, skipping insertion in model container [2024-11-18 16:13:43,339 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:13:43" (1/1) ... [2024-11-18 16:13:43,453 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 16:13:43,912 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c[26860,26873] [2024-11-18 16:13:43,949 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c[28735,28748] [2024-11-18 16:13:44,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:13:44,635 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 16:13:44,694 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c[26860,26873] [2024-11-18 16:13:44,697 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c[28735,28748] [2024-11-18 16:13:45,123 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 16:13:45,157 INFO L204 MainTranslator]: Completed translation [2024-11-18 16:13:45,158 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:45 WrapperNode [2024-11-18 16:13:45,158 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 16:13:45,159 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 16:13:45,159 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 16:13:45,160 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 16:13:45,166 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:45" (1/1) ... [2024-11-18 16:13:45,222 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:45" (1/1) ... [2024-11-18 16:13:45,542 INFO L138 Inliner]: procedures = 39, calls = 25, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 5293 [2024-11-18 16:13:45,543 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 16:13:45,543 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 16:13:45,543 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 16:13:45,543 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 16:13:45,554 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:45" (1/1) ... [2024-11-18 16:13:45,554 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:45" (1/1) ... [2024-11-18 16:13:45,593 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:45" (1/1) ... [2024-11-18 16:13:45,785 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]. [2024-11-18 16:13:45,786 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:45" (1/1) ... [2024-11-18 16:13:45,786 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:45" (1/1) ... [2024-11-18 16:13:45,951 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:45" (1/1) ... [2024-11-18 16:13:45,978 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:45" (1/1) ... [2024-11-18 16:13:46,001 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:45" (1/1) ... [2024-11-18 16:13:46,021 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:45" (1/1) ... [2024-11-18 16:13:46,071 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 16:13:46,073 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 16:13:46,074 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 16:13:46,074 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 16:13:46,075 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:45" (1/1) ... [2024-11-18 16:13:46,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 16:13:46,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 16:13:46,108 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 16:13:46,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 16:13:46,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 16:13:46,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 16:13:46,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 16:13:46,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 16:13:46,324 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 16:13:46,327 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 16:13:50,496 INFO L? ?]: Removed 759 outVars from TransFormulas that were not future-live. [2024-11-18 16:13:50,497 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 16:13:50,542 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 16:13:50,543 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-18 16:13:50,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:13:50 BoogieIcfgContainer [2024-11-18 16:13:50,543 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 16:13:50,546 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 16:13:50,546 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 16:13:50,549 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 16:13:50,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:13:43" (1/3) ... [2024-11-18 16:13:50,550 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cf03f6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:13:50, skipping insertion in model container [2024-11-18 16:13:50,551 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:13:45" (2/3) ... [2024-11-18 16:13:50,551 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cf03f6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:13:50, skipping insertion in model container [2024-11-18 16:13:50,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:13:50" (3/3) ... [2024-11-18 16:13:50,553 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.ufo.BOUNDED-16.pals+Problem12_label00.c [2024-11-18 16:13:50,568 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 16:13:50,568 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-18 16:13:50,673 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 16:13:50,682 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;@12109090, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 16:13:50,683 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-18 16:13:50,695 INFO L276 IsEmpty]: Start isEmpty. Operand has 947 states, 944 states have (on average 1.9036016949152543) internal successors, (1797), 946 states have internal predecessors, (1797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:13:50,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-18 16:13:50,704 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:13:50,705 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:13:50,706 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:13:50,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:13:50,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1911563563, now seen corresponding path program 1 times [2024-11-18 16:13:50,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:13:50,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672839610] [2024-11-18 16:13:50,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:13:50,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:13:50,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:13:51,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:13:51,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:13:51,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672839610] [2024-11-18 16:13:51,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672839610] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:13:51,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:13:51,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 16:13:51,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035376321] [2024-11-18 16:13:51,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:13:51,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:13:51,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:13:51,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:13:51,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:13:51,158 INFO L87 Difference]: Start difference. First operand has 947 states, 944 states have (on average 1.9036016949152543) internal successors, (1797), 946 states have internal predecessors, (1797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:13:54,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:13:54,502 INFO L93 Difference]: Finished difference Result 2582 states and 4966 transitions. [2024-11-18 16:13:54,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:13:54,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-18 16:13:54,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:13:54,530 INFO L225 Difference]: With dead ends: 2582 [2024-11-18 16:13:54,531 INFO L226 Difference]: Without dead ends: 1632 [2024-11-18 16:13:54,536 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 [2024-11-18 16:13:54,539 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 1110 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2437 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 3208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 2437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:13:54,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1110 Valid, 386 Invalid, 3208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [771 Valid, 2437 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-18 16:13:54,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1632 states. [2024-11-18 16:13:54,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1632 to 1632. [2024-11-18 16:13:54,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1632 states, 1630 states have (on average 1.8423312883435583) internal successors, (3003), 1631 states have internal predecessors, (3003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:13:54,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1632 states to 1632 states and 3003 transitions. [2024-11-18 16:13:54,687 INFO L78 Accepts]: Start accepts. Automaton has 1632 states and 3003 transitions. Word has length 16 [2024-11-18 16:13:54,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:13:54,687 INFO L471 AbstractCegarLoop]: Abstraction has 1632 states and 3003 transitions. [2024-11-18 16:13:54,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:13:54,688 INFO L276 IsEmpty]: Start isEmpty. Operand 1632 states and 3003 transitions. [2024-11-18 16:13:54,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-18 16:13:54,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:13:54,690 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:13:54,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 16:13:54,691 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:13:54,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:13:54,692 INFO L85 PathProgramCache]: Analyzing trace with hash -194578388, now seen corresponding path program 1 times [2024-11-18 16:13:54,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:13:54,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944465006] [2024-11-18 16:13:54,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:13:54,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:13:54,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:13:55,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:13:55,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:13:55,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944465006] [2024-11-18 16:13:55,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944465006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:13:55,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:13:55,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:13:55,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397385599] [2024-11-18 16:13:55,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:13:55,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:13:55,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:13:55,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:13:55,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:13:55,015 INFO L87 Difference]: Start difference. First operand 1632 states and 3003 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:13:55,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:13:55,138 INFO L93 Difference]: Finished difference Result 1696 states and 3104 transitions. [2024-11-18 16:13:55,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:13:55,139 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2024-11-18 16:13:55,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:13:55,145 INFO L225 Difference]: With dead ends: 1696 [2024-11-18 16:13:55,146 INFO L226 Difference]: Without dead ends: 1632 [2024-11-18 16:13:55,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:13:55,148 INFO L432 NwaCegarLoop]: 1662 mSDtfsCounter, 0 mSDsluCounter, 4920 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6582 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:13:55,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6582 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:13:55,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1632 states. [2024-11-18 16:13:55,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1632 to 1632. [2024-11-18 16:13:55,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1632 states, 1630 states have (on average 1.8049079754601227) internal successors, (2942), 1631 states have internal predecessors, (2942), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:13:55,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1632 states to 1632 states and 2942 transitions. [2024-11-18 16:13:55,193 INFO L78 Accepts]: Start accepts. Automaton has 1632 states and 2942 transitions. Word has length 30 [2024-11-18 16:13:55,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:13:55,193 INFO L471 AbstractCegarLoop]: Abstraction has 1632 states and 2942 transitions. [2024-11-18 16:13:55,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:13:55,194 INFO L276 IsEmpty]: Start isEmpty. Operand 1632 states and 2942 transitions. [2024-11-18 16:13:55,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-18 16:13:55,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:13:55,197 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 16:13:55,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 16:13:55,197 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:13:55,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:13:55,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1329435520, now seen corresponding path program 1 times [2024-11-18 16:13:55,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:13:55,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470545984] [2024-11-18 16:13:55,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:13:55,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:13:55,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:13:55,545 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:13:55,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:13:55,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470545984] [2024-11-18 16:13:55,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470545984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:13:55,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:13:55,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 16:13:55,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558239467] [2024-11-18 16:13:55,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:13:55,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:13:55,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:13:55,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:13:55,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:13:55,552 INFO L87 Difference]: Start difference. First operand 1632 states and 2942 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:13:58,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:13:58,964 INFO L93 Difference]: Finished difference Result 4640 states and 8494 transitions. [2024-11-18 16:13:58,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:13:58,969 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2024-11-18 16:13:58,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:13:58,983 INFO L225 Difference]: With dead ends: 4640 [2024-11-18 16:13:58,984 INFO L226 Difference]: Without dead ends: 3136 [2024-11-18 16:13:58,988 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 [2024-11-18 16:13:58,989 INFO L432 NwaCegarLoop]: 631 mSDtfsCounter, 895 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2262 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 895 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 2913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-18 16:13:58,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [895 Valid, 638 Invalid, 2913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 2262 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-18 16:13:58,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3136 states. [2024-11-18 16:13:59,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3136 to 3134. [2024-11-18 16:13:59,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3134 states, 3132 states have (on average 1.5533205619412516) internal successors, (4865), 3133 states have internal predecessors, (4865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:13:59,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3134 states to 3134 states and 4865 transitions. [2024-11-18 16:13:59,051 INFO L78 Accepts]: Start accepts. Automaton has 3134 states and 4865 transitions. Word has length 85 [2024-11-18 16:13:59,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:13:59,055 INFO L471 AbstractCegarLoop]: Abstraction has 3134 states and 4865 transitions. [2024-11-18 16:13:59,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:13:59,055 INFO L276 IsEmpty]: Start isEmpty. Operand 3134 states and 4865 transitions. [2024-11-18 16:13:59,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-18 16:13:59,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:13:59,057 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 16:13:59,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 16:13:59,058 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:13:59,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:13:59,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1993849947, now seen corresponding path program 1 times [2024-11-18 16:13:59,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:13:59,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434171120] [2024-11-18 16:13:59,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:13:59,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:13:59,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:13:59,211 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:13:59,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:13:59,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434171120] [2024-11-18 16:13:59,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434171120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:13:59,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:13:59,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:13:59,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403900174] [2024-11-18 16:13:59,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:13:59,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:13:59,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:13:59,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:13:59,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:13:59,218 INFO L87 Difference]: Start difference. First operand 3134 states and 4865 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:02,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:14:02,030 INFO L93 Difference]: Finished difference Result 9144 states and 14262 transitions. [2024-11-18 16:14:02,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:14:02,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2024-11-18 16:14:02,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:14:02,053 INFO L225 Difference]: With dead ends: 9144 [2024-11-18 16:14:02,054 INFO L226 Difference]: Without dead ends: 6138 [2024-11-18 16:14:02,060 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 [2024-11-18 16:14:02,061 INFO L432 NwaCegarLoop]: 1576 mSDtfsCounter, 741 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 2538 mSolverCounterSat, 555 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 3093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 555 IncrementalHoareTripleChecker+Valid, 2538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-18 16:14:02,063 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 1748 Invalid, 3093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [555 Valid, 2538 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-18 16:14:02,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6138 states. [2024-11-18 16:14:02,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6138 to 6138. [2024-11-18 16:14:02,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6138 states, 6136 states have (on average 1.4809322033898304) internal successors, (9087), 6137 states have internal predecessors, (9087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:02,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6138 states to 6138 states and 9087 transitions. [2024-11-18 16:14:02,212 INFO L78 Accepts]: Start accepts. Automaton has 6138 states and 9087 transitions. Word has length 87 [2024-11-18 16:14:02,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:14:02,213 INFO L471 AbstractCegarLoop]: Abstraction has 6138 states and 9087 transitions. [2024-11-18 16:14:02,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:02,213 INFO L276 IsEmpty]: Start isEmpty. Operand 6138 states and 9087 transitions. [2024-11-18 16:14:02,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-18 16:14:02,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:14:02,217 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:14:02,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 16:14:02,217 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:14:02,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:14:02,218 INFO L85 PathProgramCache]: Analyzing trace with hash 255619932, now seen corresponding path program 1 times [2024-11-18 16:14:02,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:14:02,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052251606] [2024-11-18 16:14:02,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:14:02,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:14:02,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:14:02,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:14:02,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:14:02,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052251606] [2024-11-18 16:14:02,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052251606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:14:02,511 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:14:02,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 16:14:02,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836279100] [2024-11-18 16:14:02,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:14:02,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 16:14:02,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:14:02,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 16:14:02,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-18 16:14:02,514 INFO L87 Difference]: Start difference. First operand 6138 states and 9087 transitions. Second operand has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:03,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:14:03,020 INFO L93 Difference]: Finished difference Result 7098 states and 10639 transitions. [2024-11-18 16:14:03,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-18 16:14:03,021 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2024-11-18 16:14:03,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:14:03,047 INFO L225 Difference]: With dead ends: 7098 [2024-11-18 16:14:03,048 INFO L226 Difference]: Without dead ends: 7038 [2024-11-18 16:14:03,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-11-18 16:14:03,054 INFO L432 NwaCegarLoop]: 1599 mSDtfsCounter, 13373 mSDsluCounter, 4789 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13373 SdHoareTripleChecker+Valid, 6388 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:14:03,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13373 Valid, 6388 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:14:03,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7038 states. [2024-11-18 16:14:03,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7038 to 6196. [2024-11-18 16:14:03,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6196 states, 6194 states have (on average 1.4822408782692928) internal successors, (9181), 6195 states have internal predecessors, (9181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:03,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6196 states to 6196 states and 9181 transitions. [2024-11-18 16:14:03,177 INFO L78 Accepts]: Start accepts. Automaton has 6196 states and 9181 transitions. Word has length 90 [2024-11-18 16:14:03,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:14:03,178 INFO L471 AbstractCegarLoop]: Abstraction has 6196 states and 9181 transitions. [2024-11-18 16:14:03,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.0) internal successors, (90), 10 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:03,178 INFO L276 IsEmpty]: Start isEmpty. Operand 6196 states and 9181 transitions. [2024-11-18 16:14:03,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-18 16:14:03,181 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:14:03,181 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:14:03,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 16:14:03,182 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:14:03,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:14:03,183 INFO L85 PathProgramCache]: Analyzing trace with hash -578069748, now seen corresponding path program 1 times [2024-11-18 16:14:03,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:14:03,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282392378] [2024-11-18 16:14:03,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:14:03,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:14:03,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:14:03,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:14:03,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:14:03,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282392378] [2024-11-18 16:14:03,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282392378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:14:03,308 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:14:03,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:14:03,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946016446] [2024-11-18 16:14:03,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:14:03,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:14:03,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:14:03,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:14:03,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:14:03,310 INFO L87 Difference]: Start difference. First operand 6196 states and 9181 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:03,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:14:03,356 INFO L93 Difference]: Finished difference Result 6421 states and 9544 transitions. [2024-11-18 16:14:03,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:14:03,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-11-18 16:14:03,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:14:03,390 INFO L225 Difference]: With dead ends: 6421 [2024-11-18 16:14:03,391 INFO L226 Difference]: Without dead ends: 6303 [2024-11-18 16:14:03,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:14:03,397 INFO L432 NwaCegarLoop]: 1601 mSDtfsCounter, 1506 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1693 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:14:03,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1693 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:14:03,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6303 states. [2024-11-18 16:14:03,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6303 to 6301. [2024-11-18 16:14:03,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6301 states, 6299 states have (on average 1.4842038418796635) internal successors, (9349), 6300 states have internal predecessors, (9349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:03,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6301 states to 6301 states and 9349 transitions. [2024-11-18 16:14:03,526 INFO L78 Accepts]: Start accepts. Automaton has 6301 states and 9349 transitions. Word has length 92 [2024-11-18 16:14:03,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:14:03,527 INFO L471 AbstractCegarLoop]: Abstraction has 6301 states and 9349 transitions. [2024-11-18 16:14:03,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:03,527 INFO L276 IsEmpty]: Start isEmpty. Operand 6301 states and 9349 transitions. [2024-11-18 16:14:03,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-18 16:14:03,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:14:03,529 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:14:03,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 16:14:03,529 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:14:03,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:14:03,529 INFO L85 PathProgramCache]: Analyzing trace with hash -511576236, now seen corresponding path program 1 times [2024-11-18 16:14:03,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:14:03,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126024082] [2024-11-18 16:14:03,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:14:03,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:14:03,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:14:04,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:14:04,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:14:04,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126024082] [2024-11-18 16:14:04,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126024082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:14:04,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:14:04,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 16:14:04,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736060093] [2024-11-18 16:14:04,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:14:04,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 16:14:04,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:14:04,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 16:14:04,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-18 16:14:04,112 INFO L87 Difference]: Start difference. First operand 6301 states and 9349 transitions. Second operand has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:04,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:14:04,542 INFO L93 Difference]: Finished difference Result 6526 states and 9709 transitions. [2024-11-18 16:14:04,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 16:14:04,542 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-11-18 16:14:04,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:14:04,565 INFO L225 Difference]: With dead ends: 6526 [2024-11-18 16:14:04,565 INFO L226 Difference]: Without dead ends: 6303 [2024-11-18 16:14:04,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-18 16:14:04,570 INFO L432 NwaCegarLoop]: 1593 mSDtfsCounter, 12132 mSDsluCounter, 661 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12132 SdHoareTripleChecker+Valid, 2254 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:14:04,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12132 Valid, 2254 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:14:04,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6303 states. [2024-11-18 16:14:04,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6303 to 6301. [2024-11-18 16:14:04,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6301 states, 6299 states have (on average 1.4838863311636767) internal successors, (9347), 6300 states have internal predecessors, (9347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:04,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6301 states to 6301 states and 9347 transitions. [2024-11-18 16:14:04,690 INFO L78 Accepts]: Start accepts. Automaton has 6301 states and 9347 transitions. Word has length 92 [2024-11-18 16:14:04,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:14:04,690 INFO L471 AbstractCegarLoop]: Abstraction has 6301 states and 9347 transitions. [2024-11-18 16:14:04,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.2) internal successors, (92), 10 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:04,691 INFO L276 IsEmpty]: Start isEmpty. Operand 6301 states and 9347 transitions. [2024-11-18 16:14:04,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-18 16:14:04,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:14:04,694 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:14:04,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 16:14:04,694 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:14:04,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:14:04,695 INFO L85 PathProgramCache]: Analyzing trace with hash 906283047, now seen corresponding path program 1 times [2024-11-18 16:14:04,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:14:04,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253704506] [2024-11-18 16:14:04,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:14:04,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:14:04,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:14:04,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:14:04,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:14:04,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253704506] [2024-11-18 16:14:04,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253704506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:14:04,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:14:04,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 16:14:04,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863402761] [2024-11-18 16:14:04,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:14:04,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 16:14:04,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:14:04,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 16:14:04,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:14:04,991 INFO L87 Difference]: Start difference. First operand 6301 states and 9347 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:05,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:14:05,041 INFO L93 Difference]: Finished difference Result 6309 states and 9356 transitions. [2024-11-18 16:14:05,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 16:14:05,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-11-18 16:14:05,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:14:05,052 INFO L225 Difference]: With dead ends: 6309 [2024-11-18 16:14:05,052 INFO L226 Difference]: Without dead ends: 6307 [2024-11-18 16:14:05,054 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 16:14:05,054 INFO L432 NwaCegarLoop]: 1600 mSDtfsCounter, 0 mSDsluCounter, 4791 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6391 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:14:05,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6391 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:14:05,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6307 states. [2024-11-18 16:14:05,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6307 to 6307. [2024-11-18 16:14:05,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6307 states, 6305 states have (on average 1.4832672482157019) internal successors, (9352), 6306 states have internal predecessors, (9352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:05,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6307 states to 6307 states and 9352 transitions. [2024-11-18 16:14:05,141 INFO L78 Accepts]: Start accepts. Automaton has 6307 states and 9352 transitions. Word has length 93 [2024-11-18 16:14:05,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:14:05,141 INFO L471 AbstractCegarLoop]: Abstraction has 6307 states and 9352 transitions. [2024-11-18 16:14:05,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:05,142 INFO L276 IsEmpty]: Start isEmpty. Operand 6307 states and 9352 transitions. [2024-11-18 16:14:05,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-18 16:14:05,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:14:05,143 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 16:14:05,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 16:14:05,144 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:14:05,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:14:05,144 INFO L85 PathProgramCache]: Analyzing trace with hash 522484756, now seen corresponding path program 1 times [2024-11-18 16:14:05,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:14:05,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170518966] [2024-11-18 16:14:05,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:14:05,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:14:05,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:14:05,318 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:14:05,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:14:05,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170518966] [2024-11-18 16:14:05,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170518966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:14:05,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:14:05,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:14:05,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313822333] [2024-11-18 16:14:05,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:14:05,320 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 16:14:05,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:14:05,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 16:14:05,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 16:14:05,321 INFO L87 Difference]: Start difference. First operand 6307 states and 9352 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:09,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:14:09,461 INFO L93 Difference]: Finished difference Result 13068 states and 19216 transitions. [2024-11-18 16:14:09,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 16:14:09,463 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 93 [2024-11-18 16:14:09,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:14:09,477 INFO L225 Difference]: With dead ends: 13068 [2024-11-18 16:14:09,478 INFO L226 Difference]: Without dead ends: 7058 [2024-11-18 16:14:09,487 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 [2024-11-18 16:14:09,488 INFO L432 NwaCegarLoop]: 405 mSDtfsCounter, 2509 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 4864 mSolverCounterSat, 695 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2509 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 5559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 695 IncrementalHoareTripleChecker+Valid, 4864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:14:09,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2509 Valid, 422 Invalid, 5559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [695 Valid, 4864 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-18 16:14:09,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7058 states. [2024-11-18 16:14:09,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7058 to 7058. [2024-11-18 16:14:09,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7058 states, 7056 states have (on average 1.4088718820861679) internal successors, (9941), 7057 states have internal predecessors, (9941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:09,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7058 states to 7058 states and 9941 transitions. [2024-11-18 16:14:09,593 INFO L78 Accepts]: Start accepts. Automaton has 7058 states and 9941 transitions. Word has length 93 [2024-11-18 16:14:09,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:14:09,593 INFO L471 AbstractCegarLoop]: Abstraction has 7058 states and 9941 transitions. [2024-11-18 16:14:09,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:09,593 INFO L276 IsEmpty]: Start isEmpty. Operand 7058 states and 9941 transitions. [2024-11-18 16:14:09,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-18 16:14:09,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:14:09,595 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:14:09,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 16:14:09,595 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:14:09,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:14:09,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1719553388, now seen corresponding path program 1 times [2024-11-18 16:14:09,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:14:09,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373334431] [2024-11-18 16:14:09,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:14:09,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:14:09,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:14:09,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:14:09,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:14:09,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373334431] [2024-11-18 16:14:09,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373334431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:14:09,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:14:09,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:14:09,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715849141] [2024-11-18 16:14:09,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:14:09,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:14:09,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:14:09,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:14:09,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:14:09,695 INFO L87 Difference]: Start difference. First operand 7058 states and 9941 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:09,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:14:09,743 INFO L93 Difference]: Finished difference Result 7300 states and 10322 transitions. [2024-11-18 16:14:09,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:14:09,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-18 16:14:09,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:14:09,755 INFO L225 Difference]: With dead ends: 7300 [2024-11-18 16:14:09,756 INFO L226 Difference]: Without dead ends: 7176 [2024-11-18 16:14:09,759 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:14:09,760 INFO L432 NwaCegarLoop]: 1685 mSDtfsCounter, 1526 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1526 SdHoareTripleChecker+Valid, 1783 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:14:09,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1526 Valid, 1783 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:14:09,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7176 states. [2024-11-18 16:14:09,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7176 to 7174. [2024-11-18 16:14:09,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7174 states, 7172 states have (on average 1.4113218070273286) internal successors, (10122), 7173 states have internal predecessors, (10122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:09,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7174 states to 7174 states and 10122 transitions. [2024-11-18 16:14:09,868 INFO L78 Accepts]: Start accepts. Automaton has 7174 states and 10122 transitions. Word has length 94 [2024-11-18 16:14:09,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:14:09,869 INFO L471 AbstractCegarLoop]: Abstraction has 7174 states and 10122 transitions. [2024-11-18 16:14:09,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:09,869 INFO L276 IsEmpty]: Start isEmpty. Operand 7174 states and 10122 transitions. [2024-11-18 16:14:09,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-18 16:14:09,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:14:09,870 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:14:09,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 16:14:09,870 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:14:09,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:14:09,871 INFO L85 PathProgramCache]: Analyzing trace with hash 593433492, now seen corresponding path program 1 times [2024-11-18 16:14:09,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:14:09,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856440646] [2024-11-18 16:14:09,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:14:09,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:14:09,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:14:09,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:14:09,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:14:09,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856440646] [2024-11-18 16:14:09,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856440646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:14:09,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:14:09,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:14:09,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238835241] [2024-11-18 16:14:09,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:14:09,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:14:09,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:14:09,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:14:09,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:14:09,970 INFO L87 Difference]: Start difference. First operand 7174 states and 10122 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:10,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:14:10,068 INFO L93 Difference]: Finished difference Result 7836 states and 11162 transitions. [2024-11-18 16:14:10,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:14:10,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-18 16:14:10,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:14:10,080 INFO L225 Difference]: With dead ends: 7836 [2024-11-18 16:14:10,080 INFO L226 Difference]: Without dead ends: 7493 [2024-11-18 16:14:10,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:14:10,084 INFO L432 NwaCegarLoop]: 1687 mSDtfsCounter, 1524 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:14:10,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1789 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:14:10,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7493 states. [2024-11-18 16:14:10,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7493 to 7491. [2024-11-18 16:14:10,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7491 states, 7489 states have (on average 1.4172786753905728) internal successors, (10614), 7490 states have internal predecessors, (10614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:10,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7491 states to 7491 states and 10614 transitions. [2024-11-18 16:14:10,189 INFO L78 Accepts]: Start accepts. Automaton has 7491 states and 10614 transitions. Word has length 94 [2024-11-18 16:14:10,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:14:10,190 INFO L471 AbstractCegarLoop]: Abstraction has 7491 states and 10614 transitions. [2024-11-18 16:14:10,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:10,191 INFO L276 IsEmpty]: Start isEmpty. Operand 7491 states and 10614 transitions. [2024-11-18 16:14:10,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-18 16:14:10,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:14:10,192 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:14:10,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 16:14:10,192 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:14:10,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:14:10,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1596549740, now seen corresponding path program 1 times [2024-11-18 16:14:10,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:14:10,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540145880] [2024-11-18 16:14:10,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:14:10,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:14:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:14:10,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:14:10,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:14:10,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540145880] [2024-11-18 16:14:10,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540145880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:14:10,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:14:10,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:14:10,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449498150] [2024-11-18 16:14:10,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:14:10,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:14:10,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:14:10,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:14:10,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:14:10,312 INFO L87 Difference]: Start difference. First operand 7491 states and 10614 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:10,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:14:10,363 INFO L93 Difference]: Finished difference Result 8763 states and 12596 transitions. [2024-11-18 16:14:10,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:14:10,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-18 16:14:10,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:14:10,377 INFO L225 Difference]: With dead ends: 8763 [2024-11-18 16:14:10,378 INFO L226 Difference]: Without dead ends: 8103 [2024-11-18 16:14:10,381 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:14:10,381 INFO L432 NwaCegarLoop]: 1675 mSDtfsCounter, 1520 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1520 SdHoareTripleChecker+Valid, 1785 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:14:10,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1520 Valid, 1785 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:14:10,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8103 states. [2024-11-18 16:14:10,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8103 to 8101. [2024-11-18 16:14:10,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8101 states, 8099 states have (on average 1.4261019878997407) internal successors, (11550), 8100 states have internal predecessors, (11550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:10,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8101 states to 8101 states and 11550 transitions. [2024-11-18 16:14:10,493 INFO L78 Accepts]: Start accepts. Automaton has 8101 states and 11550 transitions. Word has length 94 [2024-11-18 16:14:10,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:14:10,494 INFO L471 AbstractCegarLoop]: Abstraction has 8101 states and 11550 transitions. [2024-11-18 16:14:10,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:10,494 INFO L276 IsEmpty]: Start isEmpty. Operand 8101 states and 11550 transitions. [2024-11-18 16:14:10,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-18 16:14:10,495 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:14:10,495 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:14:10,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 16:14:10,496 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:14:10,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:14:10,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1332693356, now seen corresponding path program 1 times [2024-11-18 16:14:10,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:14:10,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34338472] [2024-11-18 16:14:10,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:14:10,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:14:10,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:14:10,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:14:10,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:14:10,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34338472] [2024-11-18 16:14:10,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34338472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:14:10,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:14:10,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:14:10,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765365023] [2024-11-18 16:14:10,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:14:10,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:14:10,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:14:10,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:14:10,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:14:10,588 INFO L87 Difference]: Start difference. First operand 8101 states and 11550 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:10,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:14:10,668 INFO L93 Difference]: Finished difference Result 10545 states and 15320 transitions. [2024-11-18 16:14:10,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:14:10,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-18 16:14:10,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:14:10,687 INFO L225 Difference]: With dead ends: 10545 [2024-11-18 16:14:10,687 INFO L226 Difference]: Without dead ends: 9275 [2024-11-18 16:14:10,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:14:10,694 INFO L432 NwaCegarLoop]: 1673 mSDtfsCounter, 1518 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1518 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:14:10,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1518 Valid, 1787 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:14:10,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9275 states. [2024-11-18 16:14:10,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9275 to 9273. [2024-11-18 16:14:10,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9273 states, 9271 states have (on average 1.4373853953187359) internal successors, (13326), 9272 states have internal predecessors, (13326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:10,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9273 states to 9273 states and 13326 transitions. [2024-11-18 16:14:10,839 INFO L78 Accepts]: Start accepts. Automaton has 9273 states and 13326 transitions. Word has length 94 [2024-11-18 16:14:10,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:14:10,840 INFO L471 AbstractCegarLoop]: Abstraction has 9273 states and 13326 transitions. [2024-11-18 16:14:10,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:10,840 INFO L276 IsEmpty]: Start isEmpty. Operand 9273 states and 13326 transitions. [2024-11-18 16:14:10,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-18 16:14:10,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:14:10,841 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:14:10,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 16:14:10,842 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:14:10,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:14:10,842 INFO L85 PathProgramCache]: Analyzing trace with hash -94431340, now seen corresponding path program 1 times [2024-11-18 16:14:10,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:14:10,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118961160] [2024-11-18 16:14:10,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:14:10,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:14:10,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:14:10,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:14:10,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:14:10,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118961160] [2024-11-18 16:14:10,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118961160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:14:10,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:14:10,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:14:10,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882483015] [2024-11-18 16:14:10,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:14:10,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:14:10,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:14:10,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:14:10,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:14:10,928 INFO L87 Difference]: Start difference. First operand 9273 states and 13326 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:11,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:14:11,041 INFO L93 Difference]: Finished difference Result 13965 states and 20480 transitions. [2024-11-18 16:14:11,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:14:11,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-18 16:14:11,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:14:11,061 INFO L225 Difference]: With dead ends: 13965 [2024-11-18 16:14:11,061 INFO L226 Difference]: Without dead ends: 11523 [2024-11-18 16:14:11,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:14:11,069 INFO L432 NwaCegarLoop]: 1671 mSDtfsCounter, 1516 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1516 SdHoareTripleChecker+Valid, 1789 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:14:11,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1516 Valid, 1789 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:14:11,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11523 states. [2024-11-18 16:14:11,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11523 to 11521. [2024-11-18 16:14:11,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11521 states, 11519 states have (on average 1.4485632433370952) internal successors, (16686), 11520 states have internal predecessors, (16686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:11,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11521 states to 11521 states and 16686 transitions. [2024-11-18 16:14:11,257 INFO L78 Accepts]: Start accepts. Automaton has 11521 states and 16686 transitions. Word has length 94 [2024-11-18 16:14:11,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:14:11,258 INFO L471 AbstractCegarLoop]: Abstraction has 11521 states and 16686 transitions. [2024-11-18 16:14:11,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:11,258 INFO L276 IsEmpty]: Start isEmpty. Operand 11521 states and 16686 transitions. [2024-11-18 16:14:11,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-18 16:14:11,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:14:11,259 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:14:11,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 16:14:11,260 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:14:11,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:14:11,260 INFO L85 PathProgramCache]: Analyzing trace with hash 1985067156, now seen corresponding path program 1 times [2024-11-18 16:14:11,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:14:11,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086279941] [2024-11-18 16:14:11,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:14:11,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:14:11,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:14:11,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:14:11,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:14:11,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086279941] [2024-11-18 16:14:11,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086279941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:14:11,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:14:11,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:14:11,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599120935] [2024-11-18 16:14:11,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:14:11,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:14:11,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:14:11,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:14:11,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:14:11,387 INFO L87 Difference]: Start difference. First operand 11521 states and 16686 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:11,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:14:11,543 INFO L93 Difference]: Finished difference Result 20517 states and 30224 transitions. [2024-11-18 16:14:11,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:14:11,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-18 16:14:11,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:14:11,575 INFO L225 Difference]: With dead ends: 20517 [2024-11-18 16:14:11,575 INFO L226 Difference]: Without dead ends: 15827 [2024-11-18 16:14:11,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:14:11,589 INFO L432 NwaCegarLoop]: 1669 mSDtfsCounter, 1514 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1514 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:14:11,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1514 Valid, 1791 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:14:11,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15827 states. [2024-11-18 16:14:11,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15827 to 15825. [2024-11-18 16:14:11,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15825 states, 15823 states have (on average 1.4549706123996713) internal successors, (23022), 15824 states have internal predecessors, (23022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:11,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15825 states to 15825 states and 23022 transitions. [2024-11-18 16:14:11,868 INFO L78 Accepts]: Start accepts. Automaton has 15825 states and 23022 transitions. Word has length 94 [2024-11-18 16:14:11,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:14:11,868 INFO L471 AbstractCegarLoop]: Abstraction has 15825 states and 23022 transitions. [2024-11-18 16:14:11,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:11,868 INFO L276 IsEmpty]: Start isEmpty. Operand 15825 states and 23022 transitions. [2024-11-18 16:14:11,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-18 16:14:11,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:14:11,869 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:14:11,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 16:14:11,870 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:14:11,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:14:11,870 INFO L85 PathProgramCache]: Analyzing trace with hash -528967276, now seen corresponding path program 1 times [2024-11-18 16:14:11,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:14:11,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750806464] [2024-11-18 16:14:11,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:14:11,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:14:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:14:11,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:14:11,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:14:11,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750806464] [2024-11-18 16:14:11,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750806464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:14:11,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:14:11,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:14:11,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411881415] [2024-11-18 16:14:11,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:14:11,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:14:11,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:14:11,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:14:11,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:14:11,962 INFO L87 Difference]: Start difference. First operand 15825 states and 23022 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:12,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:14:12,245 INFO L93 Difference]: Finished difference Result 33045 states and 48560 transitions. [2024-11-18 16:14:12,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:14:12,246 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-18 16:14:12,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:14:12,286 INFO L225 Difference]: With dead ends: 33045 [2024-11-18 16:14:12,286 INFO L226 Difference]: Without dead ends: 24051 [2024-11-18 16:14:12,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:14:12,305 INFO L432 NwaCegarLoop]: 1667 mSDtfsCounter, 1512 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1512 SdHoareTripleChecker+Valid, 1793 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:14:12,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1512 Valid, 1793 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:14:12,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24051 states. [2024-11-18 16:14:12,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24051 to 24049. [2024-11-18 16:14:12,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24049 states, 24047 states have (on average 1.4524057054934087) internal successors, (34926), 24048 states have internal predecessors, (34926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:12,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24049 states to 24049 states and 34926 transitions. [2024-11-18 16:14:12,897 INFO L78 Accepts]: Start accepts. Automaton has 24049 states and 34926 transitions. Word has length 94 [2024-11-18 16:14:12,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:14:12,897 INFO L471 AbstractCegarLoop]: Abstraction has 24049 states and 34926 transitions. [2024-11-18 16:14:12,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:12,897 INFO L276 IsEmpty]: Start isEmpty. Operand 24049 states and 34926 transitions. [2024-11-18 16:14:12,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-18 16:14:12,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:14:12,899 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 16:14:12,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 16:14:12,899 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:14:12,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:14:12,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1759464300, now seen corresponding path program 1 times [2024-11-18 16:14:12,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:14:12,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737120599] [2024-11-18 16:14:12,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:14:12,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:14:12,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:14:12,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 16:14:12,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:14:12,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737120599] [2024-11-18 16:14:12,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737120599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:14:12,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:14:12,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 16:14:12,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243521211] [2024-11-18 16:14:12,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:14:12,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 16:14:12,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:14:12,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 16:14:12,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:14:12,982 INFO L87 Difference]: Start difference. First operand 24049 states and 34926 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:13,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:14:13,711 INFO L93 Difference]: Finished difference Result 56949 states and 82928 transitions. [2024-11-18 16:14:13,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 16:14:13,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-18 16:14:13,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:14:13,793 INFO L225 Difference]: With dead ends: 56949 [2024-11-18 16:14:13,793 INFO L226 Difference]: Without dead ends: 39731 [2024-11-18 16:14:13,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 16:14:13,828 INFO L432 NwaCegarLoop]: 1685 mSDtfsCounter, 1522 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1522 SdHoareTripleChecker+Valid, 1791 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 16:14:13,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1522 Valid, 1791 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 16:14:13,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39731 states. [2024-11-18 16:14:14,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39731 to 39729. [2024-11-18 16:14:14,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39729 states, 39727 states have (on average 1.4397764744380397) internal successors, (57198), 39728 states have internal predecessors, (57198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:14,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39729 states to 39729 states and 57198 transitions. [2024-11-18 16:14:14,795 INFO L78 Accepts]: Start accepts. Automaton has 39729 states and 57198 transitions. Word has length 94 [2024-11-18 16:14:14,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:14:14,796 INFO L471 AbstractCegarLoop]: Abstraction has 39729 states and 57198 transitions. [2024-11-18 16:14:14,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:14,796 INFO L276 IsEmpty]: Start isEmpty. Operand 39729 states and 57198 transitions. [2024-11-18 16:14:14,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-18 16:14:14,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:14:14,807 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 16:14:14,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 16:14:14,807 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:14:14,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:14:14,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1733023753, now seen corresponding path program 1 times [2024-11-18 16:14:14,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:14:14,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344122359] [2024-11-18 16:14:14,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:14:14,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:14:14,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:14:15,099 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 16:14:15,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:14:15,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344122359] [2024-11-18 16:14:15,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344122359] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:14:15,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:14:15,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 16:14:15,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601513736] [2024-11-18 16:14:15,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:14:15,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 16:14:15,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:14:15,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 16:14:15,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 16:14:15,102 INFO L87 Difference]: Start difference. First operand 39729 states and 57198 transitions. Second operand has 10 states, 10 states have (on average 11.8) internal successors, (118), 10 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:19,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:14:19,468 INFO L93 Difference]: Finished difference Result 299715 states and 433271 transitions. [2024-11-18 16:14:19,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 16:14:19,469 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 10 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2024-11-18 16:14:19,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:14:19,996 INFO L225 Difference]: With dead ends: 299715 [2024-11-18 16:14:19,996 INFO L226 Difference]: Without dead ends: 276673 [2024-11-18 16:14:20,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-18 16:14:20,082 INFO L432 NwaCegarLoop]: 1701 mSDtfsCounter, 11707 mSDsluCounter, 3547 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11707 SdHoareTripleChecker+Valid, 5248 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 16:14:20,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11707 Valid, 5248 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 16:14:20,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276673 states. [2024-11-18 16:14:23,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276673 to 67761. [2024-11-18 16:14:23,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67761 states, 67759 states have (on average 1.437299842087398) internal successors, (97390), 67760 states have internal predecessors, (97390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:23,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67761 states to 67761 states and 97390 transitions. [2024-11-18 16:14:23,890 INFO L78 Accepts]: Start accepts. Automaton has 67761 states and 97390 transitions. Word has length 119 [2024-11-18 16:14:23,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:14:23,891 INFO L471 AbstractCegarLoop]: Abstraction has 67761 states and 97390 transitions. [2024-11-18 16:14:23,891 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.8) internal successors, (118), 10 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:23,891 INFO L276 IsEmpty]: Start isEmpty. Operand 67761 states and 97390 transitions. [2024-11-18 16:14:23,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-18 16:14:23,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:14:23,903 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 16:14:23,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 16:14:23,903 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:14:23,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:14:23,904 INFO L85 PathProgramCache]: Analyzing trace with hash 579963127, now seen corresponding path program 1 times [2024-11-18 16:14:23,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:14:23,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811688467] [2024-11-18 16:14:23,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:14:23,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:14:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:14:24,187 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-18 16:14:24,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:14:24,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811688467] [2024-11-18 16:14:24,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811688467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:14:24,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:14:24,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 16:14:24,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68569362] [2024-11-18 16:14:24,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:14:24,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 16:14:24,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:14:24,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 16:14:24,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 16:14:24,191 INFO L87 Difference]: Start difference. First operand 67761 states and 97390 transitions. Second operand has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:30,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:14:30,395 INFO L93 Difference]: Finished difference Result 332611 states and 480631 transitions. [2024-11-18 16:14:30,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 16:14:30,396 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 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 119 [2024-11-18 16:14:30,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:14:31,065 INFO L225 Difference]: With dead ends: 332611 [2024-11-18 16:14:31,065 INFO L226 Difference]: Without dead ends: 299713 [2024-11-18 16:14:31,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-18 16:14:31,124 INFO L432 NwaCegarLoop]: 1700 mSDtfsCounter, 11707 mSDsluCounter, 3528 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11707 SdHoareTripleChecker+Valid, 5228 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:14:31,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11707 Valid, 5228 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:14:31,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299713 states. [2024-11-18 16:14:35,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299713 to 112177. [2024-11-18 16:14:35,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112177 states, 112175 states have (on average 1.4353108981502116) internal successors, (161006), 112176 states have internal predecessors, (161006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:36,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112177 states to 112177 states and 161006 transitions. [2024-11-18 16:14:36,069 INFO L78 Accepts]: Start accepts. Automaton has 112177 states and 161006 transitions. Word has length 119 [2024-11-18 16:14:36,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:14:36,070 INFO L471 AbstractCegarLoop]: Abstraction has 112177 states and 161006 transitions. [2024-11-18 16:14:36,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.6) internal successors, (116), 10 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:36,070 INFO L276 IsEmpty]: Start isEmpty. Operand 112177 states and 161006 transitions. [2024-11-18 16:14:36,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-18 16:14:36,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:14:36,081 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 16:14:36,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 16:14:36,081 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:14:36,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:14:36,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1610020105, now seen corresponding path program 1 times [2024-11-18 16:14:36,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:14:36,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267216007] [2024-11-18 16:14:36,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:14:36,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:14:36,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:14:36,340 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-18 16:14:36,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:14:36,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267216007] [2024-11-18 16:14:36,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267216007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:14:36,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:14:36,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 16:14:36,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241246210] [2024-11-18 16:14:36,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:14:36,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 16:14:36,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:14:36,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 16:14:36,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 16:14:36,342 INFO L87 Difference]: Start difference. First operand 112177 states and 161006 transitions. Second operand has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:44,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 16:14:44,379 INFO L93 Difference]: Finished difference Result 365507 states and 527863 transitions. [2024-11-18 16:14:44,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 16:14:44,380 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 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 119 [2024-11-18 16:14:44,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 16:14:45,000 INFO L225 Difference]: With dead ends: 365507 [2024-11-18 16:14:45,001 INFO L226 Difference]: Without dead ends: 332609 [2024-11-18 16:14:45,107 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-18 16:14:45,109 INFO L432 NwaCegarLoop]: 1698 mSDtfsCounter, 11751 mSDsluCounter, 3518 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11751 SdHoareTripleChecker+Valid, 5216 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 16:14:45,109 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11751 Valid, 5216 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 16:14:45,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332609 states. [2024-11-18 16:14:51,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332609 to 145073. [2024-11-18 16:14:51,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145073 states, 145071 states have (on average 1.435421276478414) internal successors, (208238), 145072 states have internal predecessors, (208238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:51,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145073 states to 145073 states and 208238 transitions. [2024-11-18 16:14:51,814 INFO L78 Accepts]: Start accepts. Automaton has 145073 states and 208238 transitions. Word has length 119 [2024-11-18 16:14:51,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 16:14:51,815 INFO L471 AbstractCegarLoop]: Abstraction has 145073 states and 208238 transitions. [2024-11-18 16:14:51,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.2) internal successors, (112), 10 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 16:14:51,815 INFO L276 IsEmpty]: Start isEmpty. Operand 145073 states and 208238 transitions. [2024-11-18 16:14:51,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-18 16:14:51,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 16:14:51,828 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-18 16:14:51,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 16:14:51,828 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 16:14:51,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 16:14:51,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1346163721, now seen corresponding path program 1 times [2024-11-18 16:14:51,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 16:14:51,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131169203] [2024-11-18 16:14:51,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 16:14:51,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 16:14:51,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 16:14:52,099 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-18 16:14:52,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 16:14:52,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131169203] [2024-11-18 16:14:52,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131169203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 16:14:52,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 16:14:52,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 16:14:52,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911158960] [2024-11-18 16:14:52,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 16:14:52,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 16:14:52,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 16:14:52,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 16:14:52,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 16:14:52,102 INFO L87 Difference]: Start difference. First operand 145073 states and 208238 transitions. Second operand has 10 states, 10 states have (on average 11.0) internal successors, (110), 10 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)