./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label23.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label23.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 8d85db598b116be798c82f2dd8d1706b14592e07af324ce511eec8d5748ab1b3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-23 21:25:28,766 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-23 21:25:28,806 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-23 21:25:28,809 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-23 21:25:28,810 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-23 21:25:28,833 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-23 21:25:28,835 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-23 21:25:28,836 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-23 21:25:28,836 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-23 21:25:28,836 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-23 21:25:28,836 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-23 21:25:28,837 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-23 21:25:28,837 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-23 21:25:28,837 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-23 21:25:28,838 INFO L153 SettingsManager]: * Use SBE=true [2024-10-23 21:25:28,838 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-23 21:25:28,838 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-23 21:25:28,838 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-23 21:25:28,838 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-23 21:25:28,839 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-23 21:25:28,839 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-23 21:25:28,845 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-23 21:25:28,845 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-23 21:25:28,845 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-23 21:25:28,846 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-23 21:25:28,846 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-23 21:25:28,846 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-23 21:25:28,846 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-23 21:25:28,846 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-23 21:25:28,846 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-23 21:25:28,847 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-23 21:25:28,847 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-23 21:25:28,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 21:25:28,847 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-23 21:25:28,847 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-23 21:25:28,847 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-23 21:25:28,847 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-23 21:25:28,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-23 21:25:28,848 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-23 21:25:28,848 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-23 21:25:28,848 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-23 21:25:28,848 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-23 21:25:28,849 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d85db598b116be798c82f2dd8d1706b14592e07af324ce511eec8d5748ab1b3 [2024-10-23 21:25:29,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-23 21:25:29,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-23 21:25:29,116 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-23 21:25:29,117 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-23 21:25:29,121 INFO L274 PluginConnector]: CDTParser initialized [2024-10-23 21:25:29,122 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label23.c [2024-10-23 21:25:30,480 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-23 21:25:30,723 INFO L384 CDTParser]: Found 1 translation units. [2024-10-23 21:25:30,724 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label23.c [2024-10-23 21:25:30,738 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01c459db9/63a0d47931124e598e2e3bce37f5ccd8/FLAG24643ca40 [2024-10-23 21:25:31,037 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01c459db9/63a0d47931124e598e2e3bce37f5ccd8 [2024-10-23 21:25:31,040 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-23 21:25:31,041 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-23 21:25:31,042 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-23 21:25:31,042 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-23 21:25:31,046 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-23 21:25:31,047 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:25:31" (1/1) ... [2024-10-23 21:25:31,048 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fa54f2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:25:31, skipping insertion in model container [2024-10-23 21:25:31,048 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 09:25:31" (1/1) ... [2024-10-23 21:25:31,144 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-23 21:25:31,468 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label23.c[3431,3444] [2024-10-23 21:25:31,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 21:25:31,782 INFO L200 MainTranslator]: Completed pre-run [2024-10-23 21:25:31,798 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem16_label23.c[3431,3444] [2024-10-23 21:25:31,892 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-23 21:25:31,908 INFO L204 MainTranslator]: Completed translation [2024-10-23 21:25:31,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:25:31 WrapperNode [2024-10-23 21:25:31,908 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-23 21:25:31,909 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-23 21:25:31,910 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-23 21:25:31,910 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-23 21:25:31,915 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:25:31" (1/1) ... [2024-10-23 21:25:31,948 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:25:31" (1/1) ... [2024-10-23 21:25:32,030 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1770 [2024-10-23 21:25:32,031 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-23 21:25:32,031 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-23 21:25:32,032 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-23 21:25:32,032 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-23 21:25:32,040 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:25:31" (1/1) ... [2024-10-23 21:25:32,040 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:25:31" (1/1) ... [2024-10-23 21:25:32,051 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:25:31" (1/1) ... [2024-10-23 21:25:32,163 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-23 21:25:32,163 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:25:31" (1/1) ... [2024-10-23 21:25:32,163 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:25:31" (1/1) ... [2024-10-23 21:25:32,207 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:25:31" (1/1) ... [2024-10-23 21:25:32,228 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:25:31" (1/1) ... [2024-10-23 21:25:32,244 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:25:31" (1/1) ... [2024-10-23 21:25:32,263 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:25:31" (1/1) ... [2024-10-23 21:25:32,276 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-23 21:25:32,277 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-23 21:25:32,278 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-23 21:25:32,330 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-23 21:25:32,331 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:25:31" (1/1) ... [2024-10-23 21:25:32,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-23 21:25:32,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-23 21:25:32,359 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-23 21:25:32,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-23 21:25:32,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-23 21:25:32,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-23 21:25:32,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-23 21:25:32,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-23 21:25:32,458 INFO L238 CfgBuilder]: Building ICFG [2024-10-23 21:25:32,459 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-23 21:25:34,079 INFO L? ?]: Removed 276 outVars from TransFormulas that were not future-live. [2024-10-23 21:25:34,080 INFO L287 CfgBuilder]: Performing block encoding [2024-10-23 21:25:34,134 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-23 21:25:34,135 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-23 21:25:34,135 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:25:34 BoogieIcfgContainer [2024-10-23 21:25:34,135 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-23 21:25:34,136 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-23 21:25:34,136 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-23 21:25:34,139 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-23 21:25:34,139 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 09:25:31" (1/3) ... [2024-10-23 21:25:34,140 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b7b4f51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:25:34, skipping insertion in model container [2024-10-23 21:25:34,140 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 09:25:31" (2/3) ... [2024-10-23 21:25:34,140 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b7b4f51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 09:25:34, skipping insertion in model container [2024-10-23 21:25:34,140 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:25:34" (3/3) ... [2024-10-23 21:25:34,142 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label23.c [2024-10-23 21:25:34,156 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-23 21:25:34,156 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-23 21:25:34,221 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-23 21:25:34,226 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;@6548cbb1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-23 21:25:34,226 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-23 21:25:34,232 INFO L276 IsEmpty]: Start isEmpty. Operand has 334 states, 332 states have (on average 1.9909638554216869) internal successors, (661), 333 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:34,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-10-23 21:25:34,237 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:25:34,237 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] [2024-10-23 21:25:34,237 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:25:34,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:25:34,241 INFO L85 PathProgramCache]: Analyzing trace with hash -2018396078, now seen corresponding path program 1 times [2024-10-23 21:25:34,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:25:34,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369105425] [2024-10-23 21:25:34,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:25:34,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:25:34,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:25:34,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:25:34,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:25:34,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369105425] [2024-10-23 21:25:34,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369105425] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:25:34,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:25:34,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:25:34,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394601545] [2024-10-23 21:25:34,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:25:34,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-23 21:25:34,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:25:34,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-23 21:25:34,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 21:25:34,440 INFO L87 Difference]: Start difference. First operand has 334 states, 332 states have (on average 1.9909638554216869) internal successors, (661), 333 states have internal predecessors, (661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:34,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:25:34,495 INFO L93 Difference]: Finished difference Result 667 states and 1321 transitions. [2024-10-23 21:25:34,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-23 21:25:34,498 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 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 [2024-10-23 21:25:34,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:25:34,508 INFO L225 Difference]: With dead ends: 667 [2024-10-23 21:25:34,509 INFO L226 Difference]: Without dead ends: 332 [2024-10-23 21:25:34,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-23 21:25:34,517 INFO L432 NwaCegarLoop]: 596 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 596 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-23 21:25:34,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 596 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-23 21:25:34,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-10-23 21:25:34,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2024-10-23 21:25:34,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 331 states have (on average 1.8006042296072509) internal successors, (596), 331 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:34,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 596 transitions. [2024-10-23 21:25:34,556 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 596 transitions. Word has length 30 [2024-10-23 21:25:34,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:25:34,557 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 596 transitions. [2024-10-23 21:25:34,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:34,557 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 596 transitions. [2024-10-23 21:25:34,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-10-23 21:25:34,557 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:25:34,558 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] [2024-10-23 21:25:34,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-23 21:25:34,558 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:25:34,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:25:34,559 INFO L85 PathProgramCache]: Analyzing trace with hash 113086733, now seen corresponding path program 1 times [2024-10-23 21:25:34,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:25:34,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375593297] [2024-10-23 21:25:34,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:25:34,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:25:34,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:25:34,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:25:34,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:25:34,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375593297] [2024-10-23 21:25:34,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375593297] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:25:34,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:25:34,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:25:34,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943043386] [2024-10-23 21:25:34,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:25:34,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:25:34,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:25:34,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:25:34,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:25:34,652 INFO L87 Difference]: Start difference. First operand 332 states and 596 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:35,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:25:35,895 INFO L93 Difference]: Finished difference Result 992 states and 1785 transitions. [2024-10-23 21:25:35,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:25:35,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 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 [2024-10-23 21:25:35,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:25:35,899 INFO L225 Difference]: With dead ends: 992 [2024-10-23 21:25:35,899 INFO L226 Difference]: Without dead ends: 661 [2024-10-23 21:25:35,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:25:35,901 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 307 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1108 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 1108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-23 21:25:35,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 37 Invalid, 1222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 1108 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-23 21:25:35,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2024-10-23 21:25:35,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 661. [2024-10-23 21:25:35,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 661 states, 660 states have (on average 1.7651515151515151) internal successors, (1165), 660 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:35,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 1165 transitions. [2024-10-23 21:25:35,926 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 1165 transitions. Word has length 30 [2024-10-23 21:25:35,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:25:35,926 INFO L471 AbstractCegarLoop]: Abstraction has 661 states and 1165 transitions. [2024-10-23 21:25:35,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:35,927 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 1165 transitions. [2024-10-23 21:25:35,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-23 21:25:35,928 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:25:35,929 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:25:35,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-23 21:25:35,929 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:25:35,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:25:35,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1257594832, now seen corresponding path program 1 times [2024-10-23 21:25:35,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:25:35,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829905180] [2024-10-23 21:25:35,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:25:35,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:25:35,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:25:36,061 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:25:36,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:25:36,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829905180] [2024-10-23 21:25:36,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829905180] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:25:36,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:25:36,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:25:36,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768198389] [2024-10-23 21:25:36,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:25:36,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:25:36,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:25:36,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:25:36,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:25:36,064 INFO L87 Difference]: Start difference. First operand 661 states and 1165 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:37,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:25:37,295 INFO L93 Difference]: Finished difference Result 1979 states and 3492 transitions. [2024-10-23 21:25:37,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:25:37,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2024-10-23 21:25:37,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:25:37,299 INFO L225 Difference]: With dead ends: 1979 [2024-10-23 21:25:37,300 INFO L226 Difference]: Without dead ends: 1319 [2024-10-23 21:25:37,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:25:37,301 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 344 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 1284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-23 21:25:37,302 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 75 Invalid, 1284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 883 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-23 21:25:37,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1319 states. [2024-10-23 21:25:37,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1319 to 1319. [2024-10-23 21:25:37,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1319 states, 1318 states have (on average 1.6661608497723823) internal successors, (2196), 1318 states have internal predecessors, (2196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:37,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1319 states to 1319 states and 2196 transitions. [2024-10-23 21:25:37,336 INFO L78 Accepts]: Start accepts. Automaton has 1319 states and 2196 transitions. Word has length 95 [2024-10-23 21:25:37,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:25:37,337 INFO L471 AbstractCegarLoop]: Abstraction has 1319 states and 2196 transitions. [2024-10-23 21:25:37,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:37,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1319 states and 2196 transitions. [2024-10-23 21:25:37,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-10-23 21:25:37,339 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:25:37,339 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:25:37,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-23 21:25:37,340 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:25:37,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:25:37,340 INFO L85 PathProgramCache]: Analyzing trace with hash -501359534, now seen corresponding path program 1 times [2024-10-23 21:25:37,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:25:37,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155481549] [2024-10-23 21:25:37,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:25:37,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:25:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:25:37,510 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:25:37,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:25:37,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155481549] [2024-10-23 21:25:37,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155481549] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:25:37,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:25:37,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:25:37,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632519149] [2024-10-23 21:25:37,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:25:37,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:25:37,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:25:37,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:25:37,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:25:37,515 INFO L87 Difference]: Start difference. First operand 1319 states and 2196 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:38,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:25:38,776 INFO L93 Difference]: Finished difference Result 3624 states and 6016 transitions. [2024-10-23 21:25:38,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:25:38,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2024-10-23 21:25:38,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:25:38,784 INFO L225 Difference]: With dead ends: 3624 [2024-10-23 21:25:38,784 INFO L226 Difference]: Without dead ends: 2306 [2024-10-23 21:25:38,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:25:38,788 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 282 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-23 21:25:38,790 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 118 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 940 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-23 21:25:38,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2306 states. [2024-10-23 21:25:38,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2306 to 2306. [2024-10-23 21:25:38,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2306 states, 2305 states have (on average 1.5926247288503255) internal successors, (3671), 2305 states have internal predecessors, (3671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:38,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2306 states to 2306 states and 3671 transitions. [2024-10-23 21:25:38,825 INFO L78 Accepts]: Start accepts. Automaton has 2306 states and 3671 transitions. Word has length 98 [2024-10-23 21:25:38,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:25:38,826 INFO L471 AbstractCegarLoop]: Abstraction has 2306 states and 3671 transitions. [2024-10-23 21:25:38,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:38,827 INFO L276 IsEmpty]: Start isEmpty. Operand 2306 states and 3671 transitions. [2024-10-23 21:25:38,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-10-23 21:25:38,831 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:25:38,831 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:25:38,831 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-23 21:25:38,831 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:25:38,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:25:38,832 INFO L85 PathProgramCache]: Analyzing trace with hash -962380860, now seen corresponding path program 1 times [2024-10-23 21:25:38,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:25:38,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649011967] [2024-10-23 21:25:38,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:25:38,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:25:38,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:25:39,066 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:25:39,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:25:39,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649011967] [2024-10-23 21:25:39,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649011967] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:25:39,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:25:39,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:25:39,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849091060] [2024-10-23 21:25:39,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:25:39,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:25:39,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:25:39,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:25:39,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:25:39,071 INFO L87 Difference]: Start difference. First operand 2306 states and 3671 transitions. Second operand has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:40,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:25:40,855 INFO L93 Difference]: Finished difference Result 6256 states and 9780 transitions. [2024-10-23 21:25:40,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-23 21:25:40,856 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2024-10-23 21:25:40,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:25:40,865 INFO L225 Difference]: With dead ends: 6256 [2024-10-23 21:25:40,866 INFO L226 Difference]: Without dead ends: 3951 [2024-10-23 21:25:40,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-23 21:25:40,869 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 885 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 2132 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 885 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 2387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 2132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:25:40,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [885 Valid, 189 Invalid, 2387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 2132 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-23 21:25:40,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3951 states. [2024-10-23 21:25:40,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3951 to 3951. [2024-10-23 21:25:40,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3951 states, 3950 states have (on average 1.4313924050632911) internal successors, (5654), 3950 states have internal predecessors, (5654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:40,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3951 states to 3951 states and 5654 transitions. [2024-10-23 21:25:40,955 INFO L78 Accepts]: Start accepts. Automaton has 3951 states and 5654 transitions. Word has length 103 [2024-10-23 21:25:40,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:25:40,955 INFO L471 AbstractCegarLoop]: Abstraction has 3951 states and 5654 transitions. [2024-10-23 21:25:40,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.75) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:40,955 INFO L276 IsEmpty]: Start isEmpty. Operand 3951 states and 5654 transitions. [2024-10-23 21:25:40,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-10-23 21:25:40,956 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:25:40,957 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:25:40,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-23 21:25:40,957 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:25:40,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:25:40,957 INFO L85 PathProgramCache]: Analyzing trace with hash 1184115207, now seen corresponding path program 1 times [2024-10-23 21:25:40,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:25:40,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571263330] [2024-10-23 21:25:40,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:25:40,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:25:40,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:25:41,033 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-23 21:25:41,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:25:41,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571263330] [2024-10-23 21:25:41,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571263330] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:25:41,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:25:41,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:25:41,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931628442] [2024-10-23 21:25:41,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:25:41,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:25:41,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:25:41,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:25:41,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:25:41,035 INFO L87 Difference]: Start difference. First operand 3951 states and 5654 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 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) [2024-10-23 21:25:42,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:25:42,077 INFO L93 Difference]: Finished difference Result 10533 states and 15397 transitions. [2024-10-23 21:25:42,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:25:42,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 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 117 [2024-10-23 21:25:42,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:25:42,096 INFO L225 Difference]: With dead ends: 10533 [2024-10-23 21:25:42,097 INFO L226 Difference]: Without dead ends: 6912 [2024-10-23 21:25:42,103 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:25:42,104 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 265 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-23 21:25:42,106 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 221 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 814 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-23 21:25:42,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6912 states. [2024-10-23 21:25:42,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6912 to 6912. [2024-10-23 21:25:42,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6912 states, 6911 states have (on average 1.3082043119664304) internal successors, (9041), 6911 states have internal predecessors, (9041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:42,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6912 states to 6912 states and 9041 transitions. [2024-10-23 21:25:42,199 INFO L78 Accepts]: Start accepts. Automaton has 6912 states and 9041 transitions. Word has length 117 [2024-10-23 21:25:42,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:25:42,200 INFO L471 AbstractCegarLoop]: Abstraction has 6912 states and 9041 transitions. [2024-10-23 21:25:42,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 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) [2024-10-23 21:25:42,200 INFO L276 IsEmpty]: Start isEmpty. Operand 6912 states and 9041 transitions. [2024-10-23 21:25:42,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-10-23 21:25:42,205 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:25:42,205 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:25:42,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-23 21:25:42,205 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:25:42,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:25:42,206 INFO L85 PathProgramCache]: Analyzing trace with hash 260511614, now seen corresponding path program 1 times [2024-10-23 21:25:42,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:25:42,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958212172] [2024-10-23 21:25:42,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:25:42,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:25:42,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:25:42,390 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-10-23 21:25:42,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:25:42,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958212172] [2024-10-23 21:25:42,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958212172] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:25:42,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:25:42,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-23 21:25:42,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639400880] [2024-10-23 21:25:42,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:25:42,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:25:42,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:25:42,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:25:42,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:25:42,393 INFO L87 Difference]: Start difference. First operand 6912 states and 9041 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:43,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:25:43,358 INFO L93 Difference]: Finished difference Result 16455 states and 21658 transitions. [2024-10-23 21:25:43,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:25:43,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 264 [2024-10-23 21:25:43,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:25:43,384 INFO L225 Difference]: With dead ends: 16455 [2024-10-23 21:25:43,384 INFO L226 Difference]: Without dead ends: 9873 [2024-10-23 21:25:43,396 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:25:43,397 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 359 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-23 21:25:43,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 153 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-23 21:25:43,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9873 states. [2024-10-23 21:25:43,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9873 to 8228. [2024-10-23 21:25:43,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8228 states, 8227 states have (on average 1.203597909322961) internal successors, (9902), 8227 states have internal predecessors, (9902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:43,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8228 states to 8228 states and 9902 transitions. [2024-10-23 21:25:43,499 INFO L78 Accepts]: Start accepts. Automaton has 8228 states and 9902 transitions. Word has length 264 [2024-10-23 21:25:43,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:25:43,500 INFO L471 AbstractCegarLoop]: Abstraction has 8228 states and 9902 transitions. [2024-10-23 21:25:43,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 2 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:43,500 INFO L276 IsEmpty]: Start isEmpty. Operand 8228 states and 9902 transitions. [2024-10-23 21:25:43,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2024-10-23 21:25:43,505 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:25:43,505 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:25:43,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-23 21:25:43,505 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:25:43,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:25:43,506 INFO L85 PathProgramCache]: Analyzing trace with hash -304662785, now seen corresponding path program 1 times [2024-10-23 21:25:43,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:25:43,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808664531] [2024-10-23 21:25:43,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:25:43,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:25:43,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:25:44,073 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-23 21:25:44,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:25:44,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808664531] [2024-10-23 21:25:44,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808664531] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:25:44,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:25:44,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-23 21:25:44,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391147815] [2024-10-23 21:25:44,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:25:44,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-23 21:25:44,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:25:44,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-23 21:25:44,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-23 21:25:44,077 INFO L87 Difference]: Start difference. First operand 8228 states and 9902 transitions. Second operand has 7 states, 7 states have (on average 50.285714285714285) internal successors, (352), 6 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:45,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:25:45,567 INFO L93 Difference]: Finished difference Result 15716 states and 19010 transitions. [2024-10-23 21:25:45,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-23 21:25:45,568 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 50.285714285714285) internal successors, (352), 6 states have internal predecessors, (352), 0 states have call successors, (0), 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 352 [2024-10-23 21:25:45,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:25:45,579 INFO L225 Difference]: With dead ends: 15716 [2024-10-23 21:25:45,579 INFO L226 Difference]: Without dead ends: 7899 [2024-10-23 21:25:45,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-10-23 21:25:45,586 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 288 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 2451 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 288 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 2636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 2451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-23 21:25:45,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [288 Valid, 297 Invalid, 2636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 2451 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-23 21:25:45,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7899 states. [2024-10-23 21:25:45,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7899 to 7899. [2024-10-23 21:25:45,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7899 states, 7898 states have (on average 1.0845783742719677) internal successors, (8566), 7898 states have internal predecessors, (8566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:45,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7899 states to 7899 states and 8566 transitions. [2024-10-23 21:25:45,699 INFO L78 Accepts]: Start accepts. Automaton has 7899 states and 8566 transitions. Word has length 352 [2024-10-23 21:25:45,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:25:45,700 INFO L471 AbstractCegarLoop]: Abstraction has 7899 states and 8566 transitions. [2024-10-23 21:25:45,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 50.285714285714285) internal successors, (352), 6 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:45,701 INFO L276 IsEmpty]: Start isEmpty. Operand 7899 states and 8566 transitions. [2024-10-23 21:25:45,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2024-10-23 21:25:45,704 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:25:45,704 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:25:45,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-23 21:25:45,705 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:25:45,705 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:25:45,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1064840488, now seen corresponding path program 1 times [2024-10-23 21:25:45,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:25:45,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432439387] [2024-10-23 21:25:45,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:25:45,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:25:45,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:25:45,949 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-10-23 21:25:45,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:25:45,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432439387] [2024-10-23 21:25:45,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432439387] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:25:45,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:25:45,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:25:45,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911196304] [2024-10-23 21:25:45,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:25:45,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:25:45,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:25:45,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:25:45,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:25:45,953 INFO L87 Difference]: Start difference. First operand 7899 states and 8566 transitions. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:46,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:25:46,685 INFO L93 Difference]: Finished difference Result 18100 states and 19823 transitions. [2024-10-23 21:25:46,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:25:46,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 369 [2024-10-23 21:25:46,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:25:46,707 INFO L225 Difference]: With dead ends: 18100 [2024-10-23 21:25:46,708 INFO L226 Difference]: Without dead ends: 10860 [2024-10-23 21:25:46,713 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:25:46,714 INFO L432 NwaCegarLoop]: 397 mSDtfsCounter, 304 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:25:46,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 402 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-23 21:25:46,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10860 states. [2024-10-23 21:25:46,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10860 to 10860. [2024-10-23 21:25:46,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10860 states, 10859 states have (on average 1.0780919053319826) internal successors, (11707), 10859 states have internal predecessors, (11707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:46,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10860 states to 10860 states and 11707 transitions. [2024-10-23 21:25:46,811 INFO L78 Accepts]: Start accepts. Automaton has 10860 states and 11707 transitions. Word has length 369 [2024-10-23 21:25:46,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:25:46,811 INFO L471 AbstractCegarLoop]: Abstraction has 10860 states and 11707 transitions. [2024-10-23 21:25:46,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:46,812 INFO L276 IsEmpty]: Start isEmpty. Operand 10860 states and 11707 transitions. [2024-10-23 21:25:46,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 565 [2024-10-23 21:25:46,819 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:25:46,820 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:25:46,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-23 21:25:46,820 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:25:46,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:25:46,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1410799496, now seen corresponding path program 1 times [2024-10-23 21:25:46,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:25:46,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320500567] [2024-10-23 21:25:46,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:25:46,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:25:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:25:47,221 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 494 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-10-23 21:25:47,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:25:47,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320500567] [2024-10-23 21:25:47,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [320500567] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:25:47,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:25:47,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:25:47,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536055431] [2024-10-23 21:25:47,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:25:47,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:25:47,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:25:47,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:25:47,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:25:47,225 INFO L87 Difference]: Start difference. First operand 10860 states and 11707 transitions. Second operand has 3 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:47,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:25:47,955 INFO L93 Difference]: Finished difference Result 21390 states and 23082 transitions. [2024-10-23 21:25:47,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:25:47,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 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 564 [2024-10-23 21:25:47,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:25:47,968 INFO L225 Difference]: With dead ends: 21390 [2024-10-23 21:25:47,968 INFO L226 Difference]: Without dead ends: 10860 [2024-10-23 21:25:47,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:25:47,975 INFO L432 NwaCegarLoop]: 410 mSDtfsCounter, 178 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:25:47,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 414 Invalid, 856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-23 21:25:47,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10860 states. [2024-10-23 21:25:48,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10860 to 10860. [2024-10-23 21:25:48,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10860 states, 10859 states have (on average 1.0533198268717192) internal successors, (11438), 10859 states have internal predecessors, (11438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:48,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10860 states to 10860 states and 11438 transitions. [2024-10-23 21:25:48,056 INFO L78 Accepts]: Start accepts. Automaton has 10860 states and 11438 transitions. Word has length 564 [2024-10-23 21:25:48,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:25:48,057 INFO L471 AbstractCegarLoop]: Abstraction has 10860 states and 11438 transitions. [2024-10-23 21:25:48,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 178.66666666666666) internal successors, (536), 3 states have internal predecessors, (536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:48,057 INFO L276 IsEmpty]: Start isEmpty. Operand 10860 states and 11438 transitions. [2024-10-23 21:25:48,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 659 [2024-10-23 21:25:48,065 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:25:48,066 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:25:48,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-23 21:25:48,066 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:25:48,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:25:48,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1959952533, now seen corresponding path program 1 times [2024-10-23 21:25:48,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:25:48,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407216020] [2024-10-23 21:25:48,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:25:48,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:25:48,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:25:48,382 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 365 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2024-10-23 21:25:48,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:25:48,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407216020] [2024-10-23 21:25:48,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407216020] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:25:48,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:25:48,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:25:48,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012509625] [2024-10-23 21:25:48,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:25:48,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:25:48,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:25:48,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:25:48,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:25:48,384 INFO L87 Difference]: Start difference. First operand 10860 states and 11438 transitions. Second operand has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:49,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:25:49,083 INFO L93 Difference]: Finished difference Result 24351 states and 25708 transitions. [2024-10-23 21:25:49,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:25:49,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 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 658 [2024-10-23 21:25:49,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:25:49,101 INFO L225 Difference]: With dead ends: 24351 [2024-10-23 21:25:49,102 INFO L226 Difference]: Without dead ends: 14150 [2024-10-23 21:25:49,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:25:49,112 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 208 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-23 21:25:49,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 36 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-23 21:25:49,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14150 states. [2024-10-23 21:25:49,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14150 to 13492. [2024-10-23 21:25:49,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13492 states, 13491 states have (on average 1.0500333555703802) internal successors, (14166), 13491 states have internal predecessors, (14166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:49,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13492 states to 13492 states and 14166 transitions. [2024-10-23 21:25:49,335 INFO L78 Accepts]: Start accepts. Automaton has 13492 states and 14166 transitions. Word has length 658 [2024-10-23 21:25:49,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:25:49,336 INFO L471 AbstractCegarLoop]: Abstraction has 13492 states and 14166 transitions. [2024-10-23 21:25:49,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.0) internal successors, (417), 3 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:49,337 INFO L276 IsEmpty]: Start isEmpty. Operand 13492 states and 14166 transitions. [2024-10-23 21:25:49,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 725 [2024-10-23 21:25:49,353 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:25:49,354 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:25:49,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-23 21:25:49,355 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:25:49,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:25:49,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1847169835, now seen corresponding path program 1 times [2024-10-23 21:25:49,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:25:49,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604758068] [2024-10-23 21:25:49,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:25:49,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:25:49,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:25:49,919 INFO L134 CoverageAnalysis]: Checked inductivity of 833 backedges. 460 proven. 0 refuted. 0 times theorem prover too weak. 373 trivial. 0 not checked. [2024-10-23 21:25:49,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:25:49,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604758068] [2024-10-23 21:25:49,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604758068] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:25:49,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:25:49,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:25:49,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529237297] [2024-10-23 21:25:49,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:25:49,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:25:49,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:25:49,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:25:49,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:25:49,921 INFO L87 Difference]: Start difference. First operand 13492 states and 14166 transitions. Second operand has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:50,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:25:50,628 INFO L93 Difference]: Finished difference Result 28957 states and 30482 transitions. [2024-10-23 21:25:50,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:25:50,629 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 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 724 [2024-10-23 21:25:50,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:25:50,647 INFO L225 Difference]: With dead ends: 28957 [2024-10-23 21:25:50,648 INFO L226 Difference]: Without dead ends: 16124 [2024-10-23 21:25:50,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:25:50,659 INFO L432 NwaCegarLoop]: 434 mSDtfsCounter, 192 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-23 21:25:50,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 439 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-23 21:25:50,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16124 states. [2024-10-23 21:25:50,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16124 to 15795. [2024-10-23 21:25:50,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15795 states, 15794 states have (on average 1.0484994301633532) internal successors, (16560), 15794 states have internal predecessors, (16560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:50,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15795 states to 15795 states and 16560 transitions. [2024-10-23 21:25:50,813 INFO L78 Accepts]: Start accepts. Automaton has 15795 states and 16560 transitions. Word has length 724 [2024-10-23 21:25:50,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:25:50,814 INFO L471 AbstractCegarLoop]: Abstraction has 15795 states and 16560 transitions. [2024-10-23 21:25:50,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:50,814 INFO L276 IsEmpty]: Start isEmpty. Operand 15795 states and 16560 transitions. [2024-10-23 21:25:50,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 750 [2024-10-23 21:25:50,821 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:25:50,822 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:25:50,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-23 21:25:50,823 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:25:50,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:25:50,823 INFO L85 PathProgramCache]: Analyzing trace with hash -652333499, now seen corresponding path program 1 times [2024-10-23 21:25:50,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:25:50,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825073546] [2024-10-23 21:25:50,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:25:50,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:25:50,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:25:51,631 INFO L134 CoverageAnalysis]: Checked inductivity of 908 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 793 trivial. 0 not checked. [2024-10-23 21:25:51,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:25:51,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825073546] [2024-10-23 21:25:51,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825073546] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:25:51,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:25:51,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:25:51,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666099471] [2024-10-23 21:25:51,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:25:51,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:25:51,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:25:51,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:25:51,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:25:51,634 INFO L87 Difference]: Start difference. First operand 15795 states and 16560 transitions. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:52,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:25:52,382 INFO L93 Difference]: Finished difference Result 30931 states and 32454 transitions. [2024-10-23 21:25:52,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:25:52,382 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 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 749 [2024-10-23 21:25:52,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:25:52,402 INFO L225 Difference]: With dead ends: 30931 [2024-10-23 21:25:52,402 INFO L226 Difference]: Without dead ends: 15795 [2024-10-23 21:25:52,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:25:52,412 INFO L432 NwaCegarLoop]: 369 mSDtfsCounter, 336 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:25:52,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 374 Invalid, 805 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 787 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-23 21:25:52,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15795 states. [2024-10-23 21:25:52,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15795 to 15137. [2024-10-23 21:25:52,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15137 states, 15136 states have (on average 1.040301268498943) internal successors, (15746), 15136 states have internal predecessors, (15746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:52,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15137 states to 15137 states and 15746 transitions. [2024-10-23 21:25:52,660 INFO L78 Accepts]: Start accepts. Automaton has 15137 states and 15746 transitions. Word has length 749 [2024-10-23 21:25:52,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:25:52,661 INFO L471 AbstractCegarLoop]: Abstraction has 15137 states and 15746 transitions. [2024-10-23 21:25:52,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:52,661 INFO L276 IsEmpty]: Start isEmpty. Operand 15137 states and 15746 transitions. [2024-10-23 21:25:52,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 823 [2024-10-23 21:25:52,676 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:25:52,677 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:25:52,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-23 21:25:52,677 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:25:52,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:25:52,678 INFO L85 PathProgramCache]: Analyzing trace with hash 2123306409, now seen corresponding path program 1 times [2024-10-23 21:25:52,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:25:52,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492330343] [2024-10-23 21:25:52,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:25:52,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:25:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:25:53,864 INFO L134 CoverageAnalysis]: Checked inductivity of 789 backedges. 760 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-10-23 21:25:53,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:25:53,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492330343] [2024-10-23 21:25:53,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492330343] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:25:53,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:25:53,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:25:53,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829522941] [2024-10-23 21:25:53,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:25:53,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:25:53,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:25:53,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:25:53,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:25:53,867 INFO L87 Difference]: Start difference. First operand 15137 states and 15746 transitions. Second operand has 4 states, 4 states have (on average 198.5) internal successors, (794), 3 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:54,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:25:54,755 INFO L93 Difference]: Finished difference Result 29615 states and 30826 transitions. [2024-10-23 21:25:54,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:25:54,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 198.5) internal successors, (794), 3 states have internal predecessors, (794), 0 states have call successors, (0), 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 822 [2024-10-23 21:25:54,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:25:54,770 INFO L225 Difference]: With dead ends: 29615 [2024-10-23 21:25:54,770 INFO L226 Difference]: Without dead ends: 15137 [2024-10-23 21:25:54,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:25:54,780 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 9 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1190 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 1193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-23 21:25:54,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 116 Invalid, 1193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1190 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-23 21:25:54,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15137 states. [2024-10-23 21:25:54,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15137 to 15137. [2024-10-23 21:25:54,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15137 states, 15136 states have (on average 1.0401030655391121) internal successors, (15743), 15136 states have internal predecessors, (15743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:54,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15137 states to 15137 states and 15743 transitions. [2024-10-23 21:25:54,914 INFO L78 Accepts]: Start accepts. Automaton has 15137 states and 15743 transitions. Word has length 822 [2024-10-23 21:25:54,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:25:54,915 INFO L471 AbstractCegarLoop]: Abstraction has 15137 states and 15743 transitions. [2024-10-23 21:25:54,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 198.5) internal successors, (794), 3 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:54,915 INFO L276 IsEmpty]: Start isEmpty. Operand 15137 states and 15743 transitions. [2024-10-23 21:25:54,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 843 [2024-10-23 21:25:54,924 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:25:54,924 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:25:54,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-23 21:25:54,924 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:25:54,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:25:54,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1786302303, now seen corresponding path program 1 times [2024-10-23 21:25:54,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:25:54,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070266078] [2024-10-23 21:25:54,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:25:54,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:25:54,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:25:55,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 761 proven. 0 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2024-10-23 21:25:55,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:25:55,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070266078] [2024-10-23 21:25:55,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070266078] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:25:55,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:25:55,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:25:55,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469178815] [2024-10-23 21:25:55,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:25:55,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:25:55,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:25:55,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:25:55,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:25:55,335 INFO L87 Difference]: Start difference. First operand 15137 states and 15743 transitions. Second operand has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:56,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:25:56,023 INFO L93 Difference]: Finished difference Result 29615 states and 30823 transitions. [2024-10-23 21:25:56,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:25:56,024 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 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 842 [2024-10-23 21:25:56,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:25:56,037 INFO L225 Difference]: With dead ends: 29615 [2024-10-23 21:25:56,038 INFO L226 Difference]: Without dead ends: 15137 [2024-10-23 21:25:56,046 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:25:56,046 INFO L432 NwaCegarLoop]: 419 mSDtfsCounter, 109 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-23 21:25:56,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 424 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 745 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-23 21:25:56,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15137 states. [2024-10-23 21:25:56,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15137 to 14479. [2024-10-23 21:25:56,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14479 states, 14478 states have (on average 1.0375051802735185) internal successors, (15021), 14478 states have internal predecessors, (15021), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:56,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14479 states to 14479 states and 15021 transitions. [2024-10-23 21:25:56,151 INFO L78 Accepts]: Start accepts. Automaton has 14479 states and 15021 transitions. Word has length 842 [2024-10-23 21:25:56,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:25:56,152 INFO L471 AbstractCegarLoop]: Abstraction has 14479 states and 15021 transitions. [2024-10-23 21:25:56,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:56,152 INFO L276 IsEmpty]: Start isEmpty. Operand 14479 states and 15021 transitions. [2024-10-23 21:25:56,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 859 [2024-10-23 21:25:56,161 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:25:56,161 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:25:56,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-23 21:25:56,161 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:25:56,162 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:25:56,162 INFO L85 PathProgramCache]: Analyzing trace with hash -275665414, now seen corresponding path program 1 times [2024-10-23 21:25:56,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:25:56,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719546392] [2024-10-23 21:25:56,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:25:56,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:25:56,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:25:56,555 INFO L134 CoverageAnalysis]: Checked inductivity of 1047 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 729 trivial. 0 not checked. [2024-10-23 21:25:56,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:25:56,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719546392] [2024-10-23 21:25:56,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719546392] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:25:56,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:25:56,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:25:56,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966970] [2024-10-23 21:25:56,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:25:56,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:25:56,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:25:56,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:25:56,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:25:56,560 INFO L87 Difference]: Start difference. First operand 14479 states and 15021 transitions. Second operand has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:57,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:25:57,281 INFO L93 Difference]: Finished difference Result 30273 states and 31383 transitions. [2024-10-23 21:25:57,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:25:57,281 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 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 858 [2024-10-23 21:25:57,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:25:57,295 INFO L225 Difference]: With dead ends: 30273 [2024-10-23 21:25:57,295 INFO L226 Difference]: Without dead ends: 14479 [2024-10-23 21:25:57,304 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 [2024-10-23 21:25:57,305 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 269 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:25:57,305 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 427 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-23 21:25:57,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14479 states. [2024-10-23 21:25:57,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14479 to 14479. [2024-10-23 21:25:57,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14479 states, 14478 states have (on average 1.024727172261362) internal successors, (14836), 14478 states have internal predecessors, (14836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:57,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14479 states to 14479 states and 14836 transitions. [2024-10-23 21:25:57,470 INFO L78 Accepts]: Start accepts. Automaton has 14479 states and 14836 transitions. Word has length 858 [2024-10-23 21:25:57,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:25:57,470 INFO L471 AbstractCegarLoop]: Abstraction has 14479 states and 14836 transitions. [2024-10-23 21:25:57,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:57,471 INFO L276 IsEmpty]: Start isEmpty. Operand 14479 states and 14836 transitions. [2024-10-23 21:25:57,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1115 [2024-10-23 21:25:57,483 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:25:57,484 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:25:57,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-23 21:25:57,484 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:25:57,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:25:57,485 INFO L85 PathProgramCache]: Analyzing trace with hash 2108122000, now seen corresponding path program 1 times [2024-10-23 21:25:57,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:25:57,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358593135] [2024-10-23 21:25:57,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:25:57,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:25:57,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:25:57,963 INFO L134 CoverageAnalysis]: Checked inductivity of 2414 backedges. 1714 proven. 0 refuted. 0 times theorem prover too weak. 700 trivial. 0 not checked. [2024-10-23 21:25:57,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:25:57,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358593135] [2024-10-23 21:25:57,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1358593135] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:25:57,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:25:57,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:25:57,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715343014] [2024-10-23 21:25:57,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:25:57,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:25:57,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:25:57,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:25:57,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:25:57,966 INFO L87 Difference]: Start difference. First operand 14479 states and 14836 transitions. Second operand has 3 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:58,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:25:58,647 INFO L93 Difference]: Finished difference Result 28299 states and 29009 transitions. [2024-10-23 21:25:58,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:25:58,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 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 1114 [2024-10-23 21:25:58,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:25:58,658 INFO L225 Difference]: With dead ends: 28299 [2024-10-23 21:25:58,659 INFO L226 Difference]: Without dead ends: 14479 [2024-10-23 21:25:58,666 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:25:58,667 INFO L432 NwaCegarLoop]: 420 mSDtfsCounter, 220 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 751 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-23 21:25:58,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 425 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 751 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-23 21:25:58,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14479 states. [2024-10-23 21:25:58,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14479 to 13821. [2024-10-23 21:25:58,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13821 states, 13820 states have (on average 1.0191751085383502) internal successors, (14085), 13820 states have internal predecessors, (14085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:58,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13821 states to 13821 states and 14085 transitions. [2024-10-23 21:25:58,874 INFO L78 Accepts]: Start accepts. Automaton has 13821 states and 14085 transitions. Word has length 1114 [2024-10-23 21:25:58,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:25:58,875 INFO L471 AbstractCegarLoop]: Abstraction has 13821 states and 14085 transitions. [2024-10-23 21:25:58,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:25:58,875 INFO L276 IsEmpty]: Start isEmpty. Operand 13821 states and 14085 transitions. [2024-10-23 21:25:58,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1116 [2024-10-23 21:25:58,897 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:25:58,897 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:25:58,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-23 21:25:58,898 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:25:58,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:25:58,898 INFO L85 PathProgramCache]: Analyzing trace with hash 822998633, now seen corresponding path program 1 times [2024-10-23 21:25:58,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:25:58,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363167998] [2024-10-23 21:25:58,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:25:58,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:25:59,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:25:59,595 INFO L134 CoverageAnalysis]: Checked inductivity of 2420 backedges. 607 proven. 0 refuted. 0 times theorem prover too weak. 1813 trivial. 0 not checked. [2024-10-23 21:25:59,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:25:59,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363167998] [2024-10-23 21:25:59,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363167998] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:25:59,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:25:59,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:25:59,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923413953] [2024-10-23 21:25:59,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:25:59,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:25:59,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:25:59,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:25:59,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:25:59,600 INFO L87 Difference]: Start difference. First operand 13821 states and 14085 transitions. Second operand has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:26:00,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:26:00,337 INFO L93 Difference]: Finished difference Result 29944 states and 30544 transitions. [2024-10-23 21:26:00,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:26:00,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 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 1115 [2024-10-23 21:26:00,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:26:00,350 INFO L225 Difference]: With dead ends: 29944 [2024-10-23 21:26:00,350 INFO L226 Difference]: Without dead ends: 14479 [2024-10-23 21:26:00,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:26:00,360 INFO L432 NwaCegarLoop]: 404 mSDtfsCounter, 274 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-23 21:26:00,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 408 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-23 21:26:00,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14479 states. [2024-10-23 21:26:00,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14479 to 12505. [2024-10-23 21:26:00,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12505 states, 12504 states have (on average 1.0173544465770954) internal successors, (12721), 12504 states have internal predecessors, (12721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:26:00,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12505 states to 12505 states and 12721 transitions. [2024-10-23 21:26:00,464 INFO L78 Accepts]: Start accepts. Automaton has 12505 states and 12721 transitions. Word has length 1115 [2024-10-23 21:26:00,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:26:00,465 INFO L471 AbstractCegarLoop]: Abstraction has 12505 states and 12721 transitions. [2024-10-23 21:26:00,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.66666666666667) internal successors, (350), 3 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:26:00,465 INFO L276 IsEmpty]: Start isEmpty. Operand 12505 states and 12721 transitions. [2024-10-23 21:26:00,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1379 [2024-10-23 21:26:00,479 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:26:00,480 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:26:00,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-23 21:26:00,480 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:26:00,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:26:00,481 INFO L85 PathProgramCache]: Analyzing trace with hash 1013383868, now seen corresponding path program 1 times [2024-10-23 21:26:00,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:26:00,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487129109] [2024-10-23 21:26:00,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:26:00,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:26:00,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:26:01,550 INFO L134 CoverageAnalysis]: Checked inductivity of 3486 backedges. 2508 proven. 0 refuted. 0 times theorem prover too weak. 978 trivial. 0 not checked. [2024-10-23 21:26:01,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:26:01,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487129109] [2024-10-23 21:26:01,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487129109] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:26:01,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:26:01,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-23 21:26:01,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542613646] [2024-10-23 21:26:01,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:26:01,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-23 21:26:01,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:26:01,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-23 21:26:01,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-23 21:26:01,552 INFO L87 Difference]: Start difference. First operand 12505 states and 12721 transitions. Second operand has 6 states, 6 states have (on average 128.66666666666666) internal successors, (772), 6 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:26:02,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:26:02,557 INFO L93 Difference]: Finished difference Result 24352 states and 24780 transitions. [2024-10-23 21:26:02,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-23 21:26:02,557 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 128.66666666666666) internal successors, (772), 6 states have internal predecessors, (772), 0 states have call successors, (0), 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 1378 [2024-10-23 21:26:02,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:26:02,566 INFO L225 Difference]: With dead ends: 24352 [2024-10-23 21:26:02,566 INFO L226 Difference]: Without dead ends: 12506 [2024-10-23 21:26:02,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-23 21:26:02,572 INFO L432 NwaCegarLoop]: 420 mSDtfsCounter, 357 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 1774 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 1778 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-23 21:26:02,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 550 Invalid, 1778 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1774 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-23 21:26:02,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12506 states. [2024-10-23 21:26:02,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12506 to 12505. [2024-10-23 21:26:02,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12505 states, 12504 states have (on average 1.0170345489443378) internal successors, (12717), 12504 states have internal predecessors, (12717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:26:02,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12505 states to 12505 states and 12717 transitions. [2024-10-23 21:26:02,649 INFO L78 Accepts]: Start accepts. Automaton has 12505 states and 12717 transitions. Word has length 1378 [2024-10-23 21:26:02,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:26:02,650 INFO L471 AbstractCegarLoop]: Abstraction has 12505 states and 12717 transitions. [2024-10-23 21:26:02,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 128.66666666666666) internal successors, (772), 6 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:26:02,650 INFO L276 IsEmpty]: Start isEmpty. Operand 12505 states and 12717 transitions. [2024-10-23 21:26:02,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1393 [2024-10-23 21:26:02,663 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:26:02,664 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2024-10-23 21:26:02,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-23 21:26:02,664 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:26:02,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:26:02,664 INFO L85 PathProgramCache]: Analyzing trace with hash 2002775092, now seen corresponding path program 1 times [2024-10-23 21:26:02,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:26:02,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553757940] [2024-10-23 21:26:02,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:26:02,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:26:02,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:26:03,806 INFO L134 CoverageAnalysis]: Checked inductivity of 3316 backedges. 2375 proven. 0 refuted. 0 times theorem prover too weak. 941 trivial. 0 not checked. [2024-10-23 21:26:03,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:26:03,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553757940] [2024-10-23 21:26:03,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553757940] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:26:03,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:26:03,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-23 21:26:03,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758392417] [2024-10-23 21:26:03,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:26:03,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:26:03,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:26:03,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:26:03,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:26:03,809 INFO L87 Difference]: Start difference. First operand 12505 states and 12717 transitions. Second operand has 4 states, 4 states have (on average 192.75) internal successors, (771), 4 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:26:04,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:26:04,684 INFO L93 Difference]: Finished difference Result 24361 states and 24781 transitions. [2024-10-23 21:26:04,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-23 21:26:04,685 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 192.75) internal successors, (771), 4 states have internal predecessors, (771), 0 states have call successors, (0), 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 1392 [2024-10-23 21:26:04,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:26:04,699 INFO L225 Difference]: With dead ends: 24361 [2024-10-23 21:26:04,700 INFO L226 Difference]: Without dead ends: 12515 [2024-10-23 21:26:04,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-23 21:26:04,707 INFO L432 NwaCegarLoop]: 420 mSDtfsCounter, 217 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 1316 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-23 21:26:04,708 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 432 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1316 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-23 21:26:04,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12515 states. [2024-10-23 21:26:04,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12515 to 12505. [2024-10-23 21:26:04,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12505 states, 12504 states have (on average 1.0167146513115803) internal successors, (12713), 12504 states have internal predecessors, (12713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:26:04,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12505 states to 12505 states and 12713 transitions. [2024-10-23 21:26:04,797 INFO L78 Accepts]: Start accepts. Automaton has 12505 states and 12713 transitions. Word has length 1392 [2024-10-23 21:26:04,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:26:04,797 INFO L471 AbstractCegarLoop]: Abstraction has 12505 states and 12713 transitions. [2024-10-23 21:26:04,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 192.75) internal successors, (771), 4 states have internal predecessors, (771), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:26:04,798 INFO L276 IsEmpty]: Start isEmpty. Operand 12505 states and 12713 transitions. [2024-10-23 21:26:04,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1550 [2024-10-23 21:26:04,813 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:26:04,814 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:26:04,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-23 21:26:04,814 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:26:04,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:26:04,815 INFO L85 PathProgramCache]: Analyzing trace with hash -236084551, now seen corresponding path program 1 times [2024-10-23 21:26:04,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:26:04,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138747593] [2024-10-23 21:26:04,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:26:04,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:26:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:26:06,068 INFO L134 CoverageAnalysis]: Checked inductivity of 4909 backedges. 3120 proven. 0 refuted. 0 times theorem prover too weak. 1789 trivial. 0 not checked. [2024-10-23 21:26:06,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:26:06,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138747593] [2024-10-23 21:26:06,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138747593] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:26:06,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:26:06,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-23 21:26:06,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248427101] [2024-10-23 21:26:06,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:26:06,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-23 21:26:06,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:26:06,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-23 21:26:06,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:26:06,071 INFO L87 Difference]: Start difference. First operand 12505 states and 12713 transitions. Second operand has 3 states, 3 states have (on average 202.66666666666666) internal successors, (608), 3 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:26:06,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:26:06,721 INFO L93 Difference]: Finished difference Result 25009 states and 25429 transitions. [2024-10-23 21:26:06,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-23 21:26:06,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 202.66666666666666) internal successors, (608), 3 states have internal predecessors, (608), 0 states have call successors, (0), 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 1549 [2024-10-23 21:26:06,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:26:06,736 INFO L225 Difference]: With dead ends: 25009 [2024-10-23 21:26:06,736 INFO L226 Difference]: Without dead ends: 13163 [2024-10-23 21:26:06,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-23 21:26:06,746 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 224 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-23 21:26:06,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 427 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-23 21:26:06,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13163 states. [2024-10-23 21:26:06,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13163 to 13163. [2024-10-23 21:26:06,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13163 states, 13162 states have (on average 1.0161829509193132) internal successors, (13375), 13162 states have internal predecessors, (13375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:26:06,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13163 states to 13163 states and 13375 transitions. [2024-10-23 21:26:06,894 INFO L78 Accepts]: Start accepts. Automaton has 13163 states and 13375 transitions. Word has length 1549 [2024-10-23 21:26:06,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:26:06,895 INFO L471 AbstractCegarLoop]: Abstraction has 13163 states and 13375 transitions. [2024-10-23 21:26:06,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.66666666666666) internal successors, (608), 3 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:26:06,895 INFO L276 IsEmpty]: Start isEmpty. Operand 13163 states and 13375 transitions. [2024-10-23 21:26:06,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1604 [2024-10-23 21:26:06,926 INFO L207 NwaCegarLoop]: Found error trace [2024-10-23 21:26:06,927 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:26:06,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-23 21:26:06,927 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-23 21:26:06,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-23 21:26:06,928 INFO L85 PathProgramCache]: Analyzing trace with hash 1808009344, now seen corresponding path program 1 times [2024-10-23 21:26:06,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-23 21:26:06,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463472447] [2024-10-23 21:26:06,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-23 21:26:06,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-23 21:26:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-23 21:26:07,921 INFO L134 CoverageAnalysis]: Checked inductivity of 4959 backedges. 260 proven. 0 refuted. 0 times theorem prover too weak. 4699 trivial. 0 not checked. [2024-10-23 21:26:07,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-23 21:26:07,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463472447] [2024-10-23 21:26:07,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463472447] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-23 21:26:07,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-23 21:26:07,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-23 21:26:07,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611082892] [2024-10-23 21:26:07,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-23 21:26:07,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-23 21:26:07,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-23 21:26:07,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-23 21:26:07,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-23 21:26:07,927 INFO L87 Difference]: Start difference. First operand 13163 states and 13375 transitions. Second operand has 4 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:26:08,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-23 21:26:08,949 INFO L93 Difference]: Finished difference Result 28633 states and 29124 transitions. [2024-10-23 21:26:08,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-23 21:26:08,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 0 states have call successors, (0), 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 1603 [2024-10-23 21:26:08,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-23 21:26:08,953 INFO L225 Difference]: With dead ends: 28633 [2024-10-23 21:26:08,953 INFO L226 Difference]: Without dead ends: 0 [2024-10-23 21:26:08,962 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-23 21:26:08,962 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 635 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 1503 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 1601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-23 21:26:08,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 34 Invalid, 1601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1503 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-23 21:26:08,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-23 21:26:08,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-23 21:26:08,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:26:08,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-23 21:26:08,963 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1603 [2024-10-23 21:26:08,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-23 21:26:08,963 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-23 21:26:08,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.75) internal successors, (287), 4 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-23 21:26:08,963 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-23 21:26:08,963 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-23 21:26:08,965 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-23 21:26:08,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-23 21:26:08,972 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-23 21:26:08,974 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-23 21:26:10,473 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-23 21:26:10,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 09:26:10 BoogieIcfgContainer [2024-10-23 21:26:10,499 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-23 21:26:10,499 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-23 21:26:10,499 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-23 21:26:10,499 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-23 21:26:10,500 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 09:25:34" (3/4) ... [2024-10-23 21:26:10,501 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-23 21:26:10,528 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-10-23 21:26:10,530 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-10-23 21:26:10,531 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-23 21:26:10,533 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-23 21:26:10,676 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-23 21:26:10,677 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-23 21:26:10,677 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-23 21:26:10,677 INFO L158 Benchmark]: Toolchain (without parser) took 39636.78ms. Allocated memory was 180.4MB in the beginning and 2.6GB in the end (delta: 2.4GB). Free memory was 107.0MB in the beginning and 2.2GB in the end (delta: -2.1GB). Peak memory consumption was 362.0MB. Max. memory is 16.1GB. [2024-10-23 21:26:10,678 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 180.4MB. Free memory is still 137.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-23 21:26:10,678 INFO L158 Benchmark]: CACSL2BoogieTranslator took 867.22ms. Allocated memory is still 180.4MB. Free memory was 106.8MB in the beginning and 100.0MB in the end (delta: 6.7MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. [2024-10-23 21:26:10,678 INFO L158 Benchmark]: Boogie Procedure Inliner took 121.68ms. Allocated memory is still 180.4MB. Free memory was 100.0MB in the beginning and 76.1MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-23 21:26:10,678 INFO L158 Benchmark]: Boogie Preprocessor took 244.92ms. Allocated memory is still 180.4MB. Free memory was 76.1MB in the beginning and 125.4MB in the end (delta: -49.3MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-10-23 21:26:10,678 INFO L158 Benchmark]: RCFGBuilder took 1857.63ms. Allocated memory was 180.4MB in the beginning and 314.6MB in the end (delta: 134.2MB). Free memory was 125.3MB in the beginning and 200.3MB in the end (delta: -75.0MB). Peak memory consumption was 119.0MB. Max. memory is 16.1GB. [2024-10-23 21:26:10,678 INFO L158 Benchmark]: TraceAbstraction took 36362.33ms. Allocated memory was 314.6MB in the beginning and 2.6GB in the end (delta: 2.3GB). Free memory was 200.3MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2024-10-23 21:26:10,679 INFO L158 Benchmark]: Witness Printer took 177.70ms. Allocated memory is still 2.6GB. Free memory was 2.2GB in the beginning and 2.2GB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-10-23 21:26:10,680 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 180.4MB. Free memory is still 137.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 867.22ms. Allocated memory is still 180.4MB. Free memory was 106.8MB in the beginning and 100.0MB in the end (delta: 6.7MB). Peak memory consumption was 18.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 121.68ms. Allocated memory is still 180.4MB. Free memory was 100.0MB in the beginning and 76.1MB in the end (delta: 24.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 244.92ms. Allocated memory is still 180.4MB. Free memory was 76.1MB in the beginning and 125.4MB in the end (delta: -49.3MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * RCFGBuilder took 1857.63ms. Allocated memory was 180.4MB in the beginning and 314.6MB in the end (delta: 134.2MB). Free memory was 125.3MB in the beginning and 200.3MB in the end (delta: -75.0MB). Peak memory consumption was 119.0MB. Max. memory is 16.1GB. * TraceAbstraction took 36362.33ms. Allocated memory was 314.6MB in the beginning and 2.6GB in the end (delta: 2.3GB). Free memory was 200.3MB in the beginning and 2.2GB in the end (delta: -2.0GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. * Witness Printer took 177.70ms. Allocated memory is still 2.6GB. Free memory was 2.2GB in the beginning and 2.2GB in the end (delta: 26.2MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 110]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 334 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 34.8s, OverallIterations: 22, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 20.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6262 SdHoareTripleChecker+Valid, 18.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6262 mSDsluCounter, 6594 SdHoareTripleChecker+Invalid, 15.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 281 mSDsCounter, 2701 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22537 IncrementalHoareTripleChecker+Invalid, 25238 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2701 mSolverCounterUnsat, 6313 mSDtfsCounter, 22537 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15795occurred in iteration=12, InterpolantAutomatonStates: 77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.3s AutomataMinimizationTime, 22 MinimizatonAttempts, 6591 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 9.6s InterpolantComputationTime, 14826 NumberOfCodeBlocks, 14826 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 14804 ConstructedInterpolants, 0 QuantifiedInterpolants, 29187 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 22 PerfectInterpolantSequences, 28009/28009 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1783]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((a16 == 9) && (7 == a12)) || ((a16 == 10) && (a12 == 6))) || (((a16 == 8) && (5 == a12)) && (a15 == 3))) || (((a16 == 9) && (a12 == 8)) && (0 <= ((long long) a18 + 155)))) || (((a12 == 9) && (a15 <= 3)) && (a16 == 12))) || ((a12 == 9) && (a16 == 9))) || ((((0 <= ((long long) 87 + a18)) && (5 == a12)) && (a16 <= 11)) && (a15 == 3))) || (((a16 == 8) && (a15 == 4)) && (7 == a12))) || (((a12 == 9) && (a16 == 8)) && (0 <= ((long long) a18 + 155)))) || (((a16 == 8) && (a15 <= 3)) && (7 == a12))) || ((((0 <= ((long long) a18 + 155)) && (a16 == 12)) && (5 == a12)) && (a15 == 3))) || ((a16 == 8) && (a12 == 6))) || (((a12 == 9) && (a15 <= 3)) && (a16 <= 11))) || (((a16 == 8) && (a12 == 8)) && (((long long) a18 + 156) <= 0))) || ((((a15 <= 3) && (0 <= ((long long) a18 + 155))) && (a16 <= 11)) && (7 == a12))) || (((a15 != 3) && (a12 == 6)) && (a16 <= 11))) || ((((0 <= ((long long) 87 + a18)) && (a15 <= 3)) && (a12 == 6)) && (a16 == 12))) || ((a16 == 9) && (5 == a12))) || (((a15 <= 3) && (a12 == 8)) && (a16 <= 11))) || ((((a12 <= 5) && (a15 != 3)) && (a16 <= 11)) && (a16 != 8))) || (((a16 == 8) && (a15 == 4)) && (5 == a12))) || (((a15 <= 3) && (a12 == 8)) && (a16 == 12))) || (((0 <= ((long long) 87 + a18)) && (a16 == 8)) && (a12 == 8))) || ((((0 <= ((long long) 87 + a18)) && (a16 == 8)) && (a15 <= 3)) && (7 <= a12))) || (((0 <= ((long long) 87 + a18)) && (a12 == 6)) && (a16 <= 11))) || ((((a15 <= 3) && (0 <= ((long long) a18 + 155))) && (a16 == 12)) && (7 == a12))) RESULT: Ultimate proved your program to be correct! [2024-10-23 21:26:10,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE