./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.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 2731fe4ad24c50878b77c0b5ed6ffe935fe9322bfb607f5cec3a6209916d8bc3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:53:34,953 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:53:35,025 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:53:35,032 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:53:35,035 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:53:35,068 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:53:35,069 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:53:35,069 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:53:35,070 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:53:35,072 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:53:35,072 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:53:35,073 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:53:35,073 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:53:35,073 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:53:35,074 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:53:35,074 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:53:35,075 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:53:35,075 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:53:35,075 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:53:35,075 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:53:35,076 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:53:35,080 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:53:35,080 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:53:35,080 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:53:35,080 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:53:35,081 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:53:35,081 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:53:35,081 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:53:35,081 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:53:35,082 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:53:35,082 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:53:35,083 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:53:35,083 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:53:35,084 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:53:35,084 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:53:35,084 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:53:35,084 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:53:35,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:53:35,085 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:53:35,085 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:53:35,085 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:53:35,085 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:53:35,086 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2731fe4ad24c50878b77c0b5ed6ffe935fe9322bfb607f5cec3a6209916d8bc3 [2024-11-18 14:53:35,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:53:35,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:53:35,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:53:35,373 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:53:35,374 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:53:35,375 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2024-11-18 14:53:36,862 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:53:37,093 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:53:37,096 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2024-11-18 14:53:37,114 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d4b8252c/f1ff7b71da72482b951c6207850e0fe2/FLAGce457c901 [2024-11-18 14:53:37,133 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d4b8252c/f1ff7b71da72482b951c6207850e0fe2 [2024-11-18 14:53:37,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:53:37,138 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:53:37,141 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:53:37,141 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:53:37,146 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:53:37,147 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:53:37" (1/1) ... [2024-11-18 14:53:37,148 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20742152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:53:37, skipping insertion in model container [2024-11-18 14:53:37,149 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:53:37" (1/1) ... [2024-11-18 14:53:37,226 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:53:37,625 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[14521,14534] [2024-11-18 14:53:37,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:53:37,710 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:53:37,798 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c[14521,14534] [2024-11-18 14:53:37,839 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:53:37,860 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:53:37,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:53:37 WrapperNode [2024-11-18 14:53:37,861 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:53:37,862 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:53:37,862 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:53:37,863 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:53:37,869 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:53:37" (1/1) ... [2024-11-18 14:53:37,889 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:53:37" (1/1) ... [2024-11-18 14:53:37,950 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1250 [2024-11-18 14:53:37,951 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:53:37,951 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:53:37,951 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:53:37,951 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:53:37,963 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:53:37" (1/1) ... [2024-11-18 14:53:37,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:53:37" (1/1) ... [2024-11-18 14:53:37,972 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:53:37" (1/1) ... [2024-11-18 14:53:38,007 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 14:53:38,011 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:53:37" (1/1) ... [2024-11-18 14:53:38,011 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:53:37" (1/1) ... [2024-11-18 14:53:38,027 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:53:37" (1/1) ... [2024-11-18 14:53:38,035 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:53:37" (1/1) ... [2024-11-18 14:53:38,041 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:53:37" (1/1) ... [2024-11-18 14:53:38,045 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:53:37" (1/1) ... [2024-11-18 14:53:38,054 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:53:38,055 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:53:38,055 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:53:38,055 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:53:38,056 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:53:37" (1/1) ... [2024-11-18 14:53:38,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:53:38,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:53:38,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 14:53:38,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 14:53:38,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:53:38,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:53:38,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:53:38,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:53:38,289 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:53:38,292 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:53:39,353 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-11-18 14:53:39,354 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:53:39,381 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:53:39,382 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-18 14:53:39,385 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:53:39 BoogieIcfgContainer [2024-11-18 14:53:39,386 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:53:39,388 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:53:39,388 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:53:39,391 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:53:39,392 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:53:37" (1/3) ... [2024-11-18 14:53:39,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3750d87d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:53:39, skipping insertion in model container [2024-11-18 14:53:39,393 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:53:37" (2/3) ... [2024-11-18 14:53:39,393 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3750d87d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:53:39, skipping insertion in model container [2024-11-18 14:53:39,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:53:39" (3/3) ... [2024-11-18 14:53:39,397 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.3.3.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2024-11-18 14:53:39,413 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:53:39,413 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:53:39,487 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:53:39,494 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;@5ce95979, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:53:39,494 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:53:39,502 INFO L276 IsEmpty]: Start isEmpty. Operand has 305 states, 303 states have (on average 1.7854785478547854) internal successors, (541), 304 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:39,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-18 14:53:39,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:53:39,515 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:53:39,516 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:53:39,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:53:39,521 INFO L85 PathProgramCache]: Analyzing trace with hash 574427721, now seen corresponding path program 1 times [2024-11-18 14:53:39,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:53:39,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468262843] [2024-11-18 14:53:39,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:53:39,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:53:39,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:53:40,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:53:40,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:53:40,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468262843] [2024-11-18 14:53:40,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468262843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:53:40,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:53:40,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:53:40,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032525728] [2024-11-18 14:53:40,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:53:40,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:53:40,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:53:40,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:53:40,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:53:40,294 INFO L87 Difference]: Start difference. First operand has 305 states, 303 states have (on average 1.7854785478547854) internal successors, (541), 304 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:40,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:53:40,473 INFO L93 Difference]: Finished difference Result 612 states and 1078 transitions. [2024-11-18 14:53:40,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:53:40,480 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2024-11-18 14:53:40,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:53:40,495 INFO L225 Difference]: With dead ends: 612 [2024-11-18 14:53:40,495 INFO L226 Difference]: Without dead ends: 495 [2024-11-18 14:53:40,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:53:40,504 INFO L432 NwaCegarLoop]: 510 mSDtfsCounter, 361 mSDsluCounter, 385 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:53:40,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 895 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:53:40,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-11-18 14:53:40,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 493. [2024-11-18 14:53:40,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 493 states, 492 states have (on average 1.4959349593495934) internal successors, (736), 492 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:40,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 493 states to 493 states and 736 transitions. [2024-11-18 14:53:40,598 INFO L78 Accepts]: Start accepts. Automaton has 493 states and 736 transitions. Word has length 144 [2024-11-18 14:53:40,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:53:40,599 INFO L471 AbstractCegarLoop]: Abstraction has 493 states and 736 transitions. [2024-11-18 14:53:40,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:40,600 INFO L276 IsEmpty]: Start isEmpty. Operand 493 states and 736 transitions. [2024-11-18 14:53:40,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-18 14:53:40,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:53:40,603 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:53:40,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:53:40,604 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:53:40,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:53:40,605 INFO L85 PathProgramCache]: Analyzing trace with hash 505056235, now seen corresponding path program 1 times [2024-11-18 14:53:40,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:53:40,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041258367] [2024-11-18 14:53:40,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:53:40,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:53:40,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:53:40,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:53:40,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:53:40,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041258367] [2024-11-18 14:53:40,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041258367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:53:40,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:53:40,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:53:40,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600901157] [2024-11-18 14:53:40,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:53:40,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:53:40,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:53:40,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:53:40,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:53:40,964 INFO L87 Difference]: Start difference. First operand 493 states and 736 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:41,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:53:41,071 INFO L93 Difference]: Finished difference Result 1063 states and 1633 transitions. [2024-11-18 14:53:41,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:53:41,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2024-11-18 14:53:41,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:53:41,082 INFO L225 Difference]: With dead ends: 1063 [2024-11-18 14:53:41,082 INFO L226 Difference]: Without dead ends: 865 [2024-11-18 14:53:41,085 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:53:41,088 INFO L432 NwaCegarLoop]: 411 mSDtfsCounter, 274 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 726 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:53:41,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 726 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:53:41,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 865 states. [2024-11-18 14:53:41,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 865 to 863. [2024-11-18 14:53:41,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 863 states, 862 states have (on average 1.5081206496519721) internal successors, (1300), 862 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:41,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1300 transitions. [2024-11-18 14:53:41,137 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1300 transitions. Word has length 144 [2024-11-18 14:53:41,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:53:41,138 INFO L471 AbstractCegarLoop]: Abstraction has 863 states and 1300 transitions. [2024-11-18 14:53:41,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:41,138 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1300 transitions. [2024-11-18 14:53:41,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-18 14:53:41,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:53:41,143 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:53:41,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:53:41,144 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:53:41,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:53:41,144 INFO L85 PathProgramCache]: Analyzing trace with hash 459957428, now seen corresponding path program 1 times [2024-11-18 14:53:41,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:53:41,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950458195] [2024-11-18 14:53:41,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:53:41,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:53:41,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:53:41,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:53:41,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:53:41,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950458195] [2024-11-18 14:53:41,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950458195] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:53:41,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:53:41,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:53:41,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373843151] [2024-11-18 14:53:41,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:53:41,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:53:41,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:53:41,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:53:41,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:53:41,742 INFO L87 Difference]: Start difference. First operand 863 states and 1300 transitions. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:41,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:53:41,885 INFO L93 Difference]: Finished difference Result 4182 states and 6281 transitions. [2024-11-18 14:53:41,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:53:41,886 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2024-11-18 14:53:41,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:53:41,900 INFO L225 Difference]: With dead ends: 4182 [2024-11-18 14:53:41,900 INFO L226 Difference]: Without dead ends: 3328 [2024-11-18 14:53:41,904 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:53:41,906 INFO L432 NwaCegarLoop]: 756 mSDtfsCounter, 1257 mSDsluCounter, 1144 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1257 SdHoareTripleChecker+Valid, 1900 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:53:41,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1257 Valid, 1900 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:53:41,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3328 states. [2024-11-18 14:53:41,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3328 to 1668. [2024-11-18 14:53:41,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1668 states, 1667 states have (on average 1.4913017396520696) internal successors, (2486), 1667 states have internal predecessors, (2486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:41,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 2486 transitions. [2024-11-18 14:53:41,972 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 2486 transitions. Word has length 144 [2024-11-18 14:53:41,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:53:41,973 INFO L471 AbstractCegarLoop]: Abstraction has 1668 states and 2486 transitions. [2024-11-18 14:53:41,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:41,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 2486 transitions. [2024-11-18 14:53:41,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-18 14:53:41,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:53:41,980 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:53:41,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:53:41,980 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:53:41,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:53:41,982 INFO L85 PathProgramCache]: Analyzing trace with hash -1789583768, now seen corresponding path program 1 times [2024-11-18 14:53:41,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:53:41,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195560634] [2024-11-18 14:53:41,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:53:41,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:53:42,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:53:42,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:53:42,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:53:42,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195560634] [2024-11-18 14:53:42,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195560634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:53:42,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:53:42,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:53:42,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081655664] [2024-11-18 14:53:42,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:53:42,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:53:42,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:53:42,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:53:42,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:53:42,081 INFO L87 Difference]: Start difference. First operand 1668 states and 2486 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:42,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:53:42,134 INFO L93 Difference]: Finished difference Result 3310 states and 4929 transitions. [2024-11-18 14:53:42,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:53:42,135 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2024-11-18 14:53:42,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:53:42,140 INFO L225 Difference]: With dead ends: 3310 [2024-11-18 14:53:42,140 INFO L226 Difference]: Without dead ends: 1670 [2024-11-18 14:53:42,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:53:42,143 INFO L432 NwaCegarLoop]: 444 mSDtfsCounter, 0 mSDsluCounter, 438 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 882 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:53:42,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 882 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:53:42,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2024-11-18 14:53:42,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 1670. [2024-11-18 14:53:42,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1670 states, 1669 states have (on average 1.4907130017974835) internal successors, (2488), 1669 states have internal predecessors, (2488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:42,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1670 states to 1670 states and 2488 transitions. [2024-11-18 14:53:42,184 INFO L78 Accepts]: Start accepts. Automaton has 1670 states and 2488 transitions. Word has length 145 [2024-11-18 14:53:42,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:53:42,185 INFO L471 AbstractCegarLoop]: Abstraction has 1670 states and 2488 transitions. [2024-11-18 14:53:42,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:42,185 INFO L276 IsEmpty]: Start isEmpty. Operand 1670 states and 2488 transitions. [2024-11-18 14:53:42,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-18 14:53:42,188 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:53:42,188 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:53:42,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:53:42,189 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:53:42,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:53:42,190 INFO L85 PathProgramCache]: Analyzing trace with hash 338353525, now seen corresponding path program 1 times [2024-11-18 14:53:42,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:53:42,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128081758] [2024-11-18 14:53:42,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:53:42,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:53:42,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:53:42,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:53:42,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:53:42,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128081758] [2024-11-18 14:53:42,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128081758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:53:42,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:53:42,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:53:42,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900438221] [2024-11-18 14:53:42,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:53:42,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:53:42,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:53:42,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:53:42,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:53:42,664 INFO L87 Difference]: Start difference. First operand 1670 states and 2488 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:42,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:53:42,700 INFO L93 Difference]: Finished difference Result 3326 states and 4955 transitions. [2024-11-18 14:53:42,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:53:42,701 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 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 146 [2024-11-18 14:53:42,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:53:42,706 INFO L225 Difference]: With dead ends: 3326 [2024-11-18 14:53:42,707 INFO L226 Difference]: Without dead ends: 1670 [2024-11-18 14:53:42,709 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:53:42,710 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 20 mSDsluCounter, 914 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 1394 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:53:42,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 1394 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:53:42,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1670 states. [2024-11-18 14:53:42,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1670 to 1669. [2024-11-18 14:53:42,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1669 states, 1668 states have (on average 1.4898081534772183) internal successors, (2485), 1668 states have internal predecessors, (2485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:42,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1669 states to 1669 states and 2485 transitions. [2024-11-18 14:53:42,745 INFO L78 Accepts]: Start accepts. Automaton has 1669 states and 2485 transitions. Word has length 146 [2024-11-18 14:53:42,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:53:42,746 INFO L471 AbstractCegarLoop]: Abstraction has 1669 states and 2485 transitions. [2024-11-18 14:53:42,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:42,747 INFO L276 IsEmpty]: Start isEmpty. Operand 1669 states and 2485 transitions. [2024-11-18 14:53:42,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-18 14:53:42,750 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:53:42,750 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:53:42,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:53:42,751 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:53:42,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:53:42,751 INFO L85 PathProgramCache]: Analyzing trace with hash -2057553317, now seen corresponding path program 1 times [2024-11-18 14:53:42,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:53:42,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229126026] [2024-11-18 14:53:42,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:53:42,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:53:42,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:53:42,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:53:42,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:53:42,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229126026] [2024-11-18 14:53:42,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229126026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:53:42,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:53:42,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:53:42,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50430982] [2024-11-18 14:53:42,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:53:42,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:53:42,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:53:42,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:53:42,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:53:42,861 INFO L87 Difference]: Start difference. First operand 1669 states and 2485 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:42,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:53:42,955 INFO L93 Difference]: Finished difference Result 4401 states and 6556 transitions. [2024-11-18 14:53:42,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:53:42,956 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 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 146 [2024-11-18 14:53:42,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:53:42,969 INFO L225 Difference]: With dead ends: 4401 [2024-11-18 14:53:42,970 INFO L226 Difference]: Without dead ends: 2909 [2024-11-18 14:53:42,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:53:42,974 INFO L432 NwaCegarLoop]: 797 mSDtfsCounter, 369 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:53:42,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 1198 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:53:42,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2909 states. [2024-11-18 14:53:43,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2909 to 2907. [2024-11-18 14:53:43,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2907 states, 2906 states have (on average 1.4686854783207157) internal successors, (4268), 2906 states have internal predecessors, (4268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:43,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2907 states to 2907 states and 4268 transitions. [2024-11-18 14:53:43,058 INFO L78 Accepts]: Start accepts. Automaton has 2907 states and 4268 transitions. Word has length 146 [2024-11-18 14:53:43,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:53:43,059 INFO L471 AbstractCegarLoop]: Abstraction has 2907 states and 4268 transitions. [2024-11-18 14:53:43,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:43,060 INFO L276 IsEmpty]: Start isEmpty. Operand 2907 states and 4268 transitions. [2024-11-18 14:53:43,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-18 14:53:43,064 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:53:43,064 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:53:43,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:53:43,065 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:53:43,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:53:43,065 INFO L85 PathProgramCache]: Analyzing trace with hash -720713928, now seen corresponding path program 1 times [2024-11-18 14:53:43,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:53:43,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097092711] [2024-11-18 14:53:43,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:53:43,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:53:43,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:53:43,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:53:43,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:53:43,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097092711] [2024-11-18 14:53:43,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097092711] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:53:43,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:53:43,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:53:43,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076118694] [2024-11-18 14:53:43,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:53:43,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:53:43,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:53:43,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:53:43,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:53:43,565 INFO L87 Difference]: Start difference. First operand 2907 states and 4268 transitions. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:43,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:53:43,605 INFO L93 Difference]: Finished difference Result 5213 states and 7677 transitions. [2024-11-18 14:53:43,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:53:43,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 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 146 [2024-11-18 14:53:43,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:53:43,614 INFO L225 Difference]: With dead ends: 5213 [2024-11-18 14:53:43,614 INFO L226 Difference]: Without dead ends: 2473 [2024-11-18 14:53:43,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:53:43,619 INFO L432 NwaCegarLoop]: 483 mSDtfsCounter, 23 mSDsluCounter, 915 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:53:43,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 1398 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:53:43,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2473 states. [2024-11-18 14:53:43,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2473 to 2473. [2024-11-18 14:53:43,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2473 states, 2472 states have (on average 1.468042071197411) internal successors, (3629), 2472 states have internal predecessors, (3629), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:43,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2473 states to 2473 states and 3629 transitions. [2024-11-18 14:53:43,664 INFO L78 Accepts]: Start accepts. Automaton has 2473 states and 3629 transitions. Word has length 146 [2024-11-18 14:53:43,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:53:43,664 INFO L471 AbstractCegarLoop]: Abstraction has 2473 states and 3629 transitions. [2024-11-18 14:53:43,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:43,665 INFO L276 IsEmpty]: Start isEmpty. Operand 2473 states and 3629 transitions. [2024-11-18 14:53:43,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-18 14:53:43,668 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:53:43,669 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:53:43,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:53:43,669 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:53:43,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:53:43,670 INFO L85 PathProgramCache]: Analyzing trace with hash 2082628409, now seen corresponding path program 1 times [2024-11-18 14:53:43,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:53:43,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412462175] [2024-11-18 14:53:43,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:53:43,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:53:43,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:53:43,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:53:43,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:53:43,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412462175] [2024-11-18 14:53:43,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412462175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:53:43,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:53:43,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:53:43,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073410110] [2024-11-18 14:53:43,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:53:43,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:53:43,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:53:43,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:53:43,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:53:43,775 INFO L87 Difference]: Start difference. First operand 2473 states and 3629 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:44,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:53:44,015 INFO L93 Difference]: Finished difference Result 6622 states and 9825 transitions. [2024-11-18 14:53:44,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:53:44,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 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 152 [2024-11-18 14:53:44,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:53:44,031 INFO L225 Difference]: With dead ends: 6622 [2024-11-18 14:53:44,031 INFO L226 Difference]: Without dead ends: 4572 [2024-11-18 14:53:44,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:53:44,036 INFO L432 NwaCegarLoop]: 432 mSDtfsCounter, 296 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 756 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:53:44,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 756 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:53:44,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4572 states. [2024-11-18 14:53:44,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4572 to 4570. [2024-11-18 14:53:44,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4570 states, 4569 states have (on average 1.4690304224119064) internal successors, (6712), 4569 states have internal predecessors, (6712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:44,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4570 states to 4570 states and 6712 transitions. [2024-11-18 14:53:44,151 INFO L78 Accepts]: Start accepts. Automaton has 4570 states and 6712 transitions. Word has length 152 [2024-11-18 14:53:44,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:53:44,151 INFO L471 AbstractCegarLoop]: Abstraction has 4570 states and 6712 transitions. [2024-11-18 14:53:44,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:44,152 INFO L276 IsEmpty]: Start isEmpty. Operand 4570 states and 6712 transitions. [2024-11-18 14:53:44,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-18 14:53:44,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:53:44,157 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:53:44,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:53:44,157 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:53:44,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:53:44,158 INFO L85 PathProgramCache]: Analyzing trace with hash 243591764, now seen corresponding path program 1 times [2024-11-18 14:53:44,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:53:44,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702064307] [2024-11-18 14:53:44,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:53:44,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:53:44,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:53:44,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:53:44,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:53:44,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702064307] [2024-11-18 14:53:44,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702064307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:53:44,380 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:53:44,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:53:44,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900530802] [2024-11-18 14:53:44,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:53:44,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:53:44,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:53:44,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:53:44,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:53:44,383 INFO L87 Difference]: Start difference. First operand 4570 states and 6712 transitions. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:44,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:53:44,571 INFO L93 Difference]: Finished difference Result 9906 states and 15524 transitions. [2024-11-18 14:53:44,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:53:44,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 0 states have call successors, (0), 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 152 [2024-11-18 14:53:44,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:53:44,598 INFO L225 Difference]: With dead ends: 9906 [2024-11-18 14:53:44,599 INFO L226 Difference]: Without dead ends: 8150 [2024-11-18 14:53:44,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:53:44,606 INFO L432 NwaCegarLoop]: 533 mSDtfsCounter, 967 mSDsluCounter, 829 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 967 SdHoareTripleChecker+Valid, 1362 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:53:44,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [967 Valid, 1362 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:53:44,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8150 states. [2024-11-18 14:53:44,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8150 to 6396. [2024-11-18 14:53:44,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6396 states, 6395 states have (on average 1.5186864738076622) internal successors, (9712), 6395 states have internal predecessors, (9712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:44,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6396 states to 6396 states and 9712 transitions. [2024-11-18 14:53:44,766 INFO L78 Accepts]: Start accepts. Automaton has 6396 states and 9712 transitions. Word has length 152 [2024-11-18 14:53:44,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:53:44,766 INFO L471 AbstractCegarLoop]: Abstraction has 6396 states and 9712 transitions. [2024-11-18 14:53:44,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:44,767 INFO L276 IsEmpty]: Start isEmpty. Operand 6396 states and 9712 transitions. [2024-11-18 14:53:44,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-18 14:53:44,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:53:44,772 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:53:44,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:53:44,772 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:53:44,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:53:44,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1237221404, now seen corresponding path program 1 times [2024-11-18 14:53:44,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:53:44,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822725983] [2024-11-18 14:53:44,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:53:44,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:53:44,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:53:44,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:53:44,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:53:44,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822725983] [2024-11-18 14:53:44,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822725983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:53:44,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:53:44,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:53:44,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957587933] [2024-11-18 14:53:44,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:53:44,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:53:44,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:53:44,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:53:44,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:53:44,879 INFO L87 Difference]: Start difference. First operand 6396 states and 9712 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:44,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:53:44,984 INFO L93 Difference]: Finished difference Result 14984 states and 23196 transitions. [2024-11-18 14:53:44,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:53:44,985 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 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 152 [2024-11-18 14:53:44,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:53:45,007 INFO L225 Difference]: With dead ends: 14984 [2024-11-18 14:53:45,008 INFO L226 Difference]: Without dead ends: 11174 [2024-11-18 14:53:45,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:53:45,018 INFO L432 NwaCegarLoop]: 407 mSDtfsCounter, 260 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 709 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:53:45,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 709 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:53:45,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11174 states. [2024-11-18 14:53:45,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11174 to 11172. [2024-11-18 14:53:45,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11172 states, 11171 states have (on average 1.512308656342315) internal successors, (16894), 11171 states have internal predecessors, (16894), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:45,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11172 states to 11172 states and 16894 transitions. [2024-11-18 14:53:45,327 INFO L78 Accepts]: Start accepts. Automaton has 11172 states and 16894 transitions. Word has length 152 [2024-11-18 14:53:45,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:53:45,328 INFO L471 AbstractCegarLoop]: Abstraction has 11172 states and 16894 transitions. [2024-11-18 14:53:45,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:45,329 INFO L276 IsEmpty]: Start isEmpty. Operand 11172 states and 16894 transitions. [2024-11-18 14:53:45,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-18 14:53:45,338 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:53:45,339 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:53:45,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 14:53:45,339 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:53:45,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:53:45,340 INFO L85 PathProgramCache]: Analyzing trace with hash 198492957, now seen corresponding path program 1 times [2024-11-18 14:53:45,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:53:45,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581057748] [2024-11-18 14:53:45,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:53:45,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:53:45,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:53:45,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:53:45,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:53:45,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581057748] [2024-11-18 14:53:45,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581057748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:53:45,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:53:45,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:53:45,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980985990] [2024-11-18 14:53:45,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:53:45,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:53:45,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:53:45,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:53:45,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:53:45,778 INFO L87 Difference]: Start difference. First operand 11172 states and 16894 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:45,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:53:45,909 INFO L93 Difference]: Finished difference Result 15176 states and 23412 transitions. [2024-11-18 14:53:45,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:53:45,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 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 152 [2024-11-18 14:53:45,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:53:45,930 INFO L225 Difference]: With dead ends: 15176 [2024-11-18 14:53:45,930 INFO L226 Difference]: Without dead ends: 11174 [2024-11-18 14:53:45,939 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:53:45,940 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 546 mSDsluCounter, 450 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 546 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:53:45,940 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [546 Valid, 1012 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:53:45,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11174 states. [2024-11-18 14:53:46,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11174 to 11172. [2024-11-18 14:53:46,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11172 states, 11171 states have (on average 1.5047891862859188) internal successors, (16810), 11171 states have internal predecessors, (16810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:46,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11172 states to 11172 states and 16810 transitions. [2024-11-18 14:53:46,127 INFO L78 Accepts]: Start accepts. Automaton has 11172 states and 16810 transitions. Word has length 152 [2024-11-18 14:53:46,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:53:46,128 INFO L471 AbstractCegarLoop]: Abstraction has 11172 states and 16810 transitions. [2024-11-18 14:53:46,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:46,128 INFO L276 IsEmpty]: Start isEmpty. Operand 11172 states and 16810 transitions. [2024-11-18 14:53:46,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-18 14:53:46,137 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:53:46,137 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:53:46,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 14:53:46,138 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:53:46,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:53:46,138 INFO L85 PathProgramCache]: Analyzing trace with hash -708900510, now seen corresponding path program 1 times [2024-11-18 14:53:46,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:53:46,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040745979] [2024-11-18 14:53:46,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:53:46,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:53:46,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:53:46,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:53:46,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:53:46,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040745979] [2024-11-18 14:53:46,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040745979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:53:46,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:53:46,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:53:46,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137005525] [2024-11-18 14:53:46,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:53:46,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:53:46,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:53:46,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:53:46,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:53:46,511 INFO L87 Difference]: Start difference. First operand 11172 states and 16810 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:46,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:53:46,631 INFO L93 Difference]: Finished difference Result 29268 states and 44023 transitions. [2024-11-18 14:53:46,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:53:46,632 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 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 152 [2024-11-18 14:53:46,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:53:46,663 INFO L225 Difference]: With dead ends: 29268 [2024-11-18 14:53:46,663 INFO L226 Difference]: Without dead ends: 18133 [2024-11-18 14:53:46,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:53:46,683 INFO L432 NwaCegarLoop]: 758 mSDtfsCounter, 755 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 1146 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:53:46,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 1146 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:53:46,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18133 states. [2024-11-18 14:53:46,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18133 to 18131. [2024-11-18 14:53:47,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18131 states, 18130 states have (on average 1.4883618312189741) internal successors, (26984), 18130 states have internal predecessors, (26984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:47,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18131 states to 18131 states and 26984 transitions. [2024-11-18 14:53:47,052 INFO L78 Accepts]: Start accepts. Automaton has 18131 states and 26984 transitions. Word has length 152 [2024-11-18 14:53:47,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:53:47,052 INFO L471 AbstractCegarLoop]: Abstraction has 18131 states and 26984 transitions. [2024-11-18 14:53:47,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:47,052 INFO L276 IsEmpty]: Start isEmpty. Operand 18131 states and 26984 transitions. [2024-11-18 14:53:47,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-18 14:53:47,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:53:47,065 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:53:47,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 14:53:47,066 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:53:47,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:53:47,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1734446853, now seen corresponding path program 1 times [2024-11-18 14:53:47,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:53:47,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142277688] [2024-11-18 14:53:47,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:53:47,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:53:47,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:53:47,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:53:47,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:53:47,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142277688] [2024-11-18 14:53:47,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142277688] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:53:47,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:53:47,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:53:47,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604951893] [2024-11-18 14:53:47,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:53:47,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:53:47,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:53:47,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:53:47,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:53:47,257 INFO L87 Difference]: Start difference. First operand 18131 states and 26984 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:47,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:53:47,431 INFO L93 Difference]: Finished difference Result 46118 states and 68528 transitions. [2024-11-18 14:53:47,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:53:47,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 154 [2024-11-18 14:53:47,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:53:47,491 INFO L225 Difference]: With dead ends: 46118 [2024-11-18 14:53:47,491 INFO L226 Difference]: Without dead ends: 28472 [2024-11-18 14:53:47,520 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:53:47,521 INFO L432 NwaCegarLoop]: 798 mSDtfsCounter, 367 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1191 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:53:47,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 1191 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:53:47,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28472 states. [2024-11-18 14:53:48,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28472 to 28470. [2024-11-18 14:53:48,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28470 states, 28469 states have (on average 1.4646808809582352) internal successors, (41698), 28469 states have internal predecessors, (41698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:48,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28470 states to 28470 states and 41698 transitions. [2024-11-18 14:53:48,199 INFO L78 Accepts]: Start accepts. Automaton has 28470 states and 41698 transitions. Word has length 154 [2024-11-18 14:53:48,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:53:48,200 INFO L471 AbstractCegarLoop]: Abstraction has 28470 states and 41698 transitions. [2024-11-18 14:53:48,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:48,200 INFO L276 IsEmpty]: Start isEmpty. Operand 28470 states and 41698 transitions. [2024-11-18 14:53:48,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-18 14:53:48,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:53:48,220 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:53:48,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 14:53:48,220 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:53:48,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:53:48,221 INFO L85 PathProgramCache]: Analyzing trace with hash 145948848, now seen corresponding path program 1 times [2024-11-18 14:53:48,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:53:48,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021571259] [2024-11-18 14:53:48,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:53:48,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:53:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:53:48,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:53:48,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:53:48,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021571259] [2024-11-18 14:53:48,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021571259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:53:48,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:53:48,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:53:48,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389589674] [2024-11-18 14:53:48,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:53:48,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:53:48,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:53:48,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:53:48,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:53:48,394 INFO L87 Difference]: Start difference. First operand 28470 states and 41698 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:48,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:53:49,000 INFO L93 Difference]: Finished difference Result 75538 states and 117040 transitions. [2024-11-18 14:53:49,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 14:53:49,000 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 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 160 [2024-11-18 14:53:49,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:53:49,276 INFO L225 Difference]: With dead ends: 75538 [2024-11-18 14:53:49,277 INFO L226 Difference]: Without dead ends: 59776 [2024-11-18 14:53:49,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:53:49,322 INFO L432 NwaCegarLoop]: 669 mSDtfsCounter, 1263 mSDsluCounter, 1003 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:53:49,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1263 Valid, 1672 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:53:49,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59776 states. [2024-11-18 14:53:50,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59776 to 39446. [2024-11-18 14:53:50,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39446 states, 39445 states have (on average 1.494181772087717) internal successors, (58938), 39445 states have internal predecessors, (58938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:50,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39446 states to 39446 states and 58938 transitions. [2024-11-18 14:53:50,199 INFO L78 Accepts]: Start accepts. Automaton has 39446 states and 58938 transitions. Word has length 160 [2024-11-18 14:53:50,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:53:50,200 INFO L471 AbstractCegarLoop]: Abstraction has 39446 states and 58938 transitions. [2024-11-18 14:53:50,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:50,200 INFO L276 IsEmpty]: Start isEmpty. Operand 39446 states and 58938 transitions. [2024-11-18 14:53:50,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-18 14:53:50,224 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:53:50,224 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:53:50,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 14:53:50,224 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:53:50,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:53:50,225 INFO L85 PathProgramCache]: Analyzing trace with hash -823031726, now seen corresponding path program 1 times [2024-11-18 14:53:50,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:53:50,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351754678] [2024-11-18 14:53:50,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:53:50,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:53:50,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:53:51,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:53:51,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:53:51,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351754678] [2024-11-18 14:53:51,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351754678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:53:51,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:53:51,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 14:53:51,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445132038] [2024-11-18 14:53:51,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:53:51,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 14:53:51,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:53:51,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 14:53:51,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:53:51,105 INFO L87 Difference]: Start difference. First operand 39446 states and 58938 transitions. Second operand has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:51,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:53:51,584 INFO L93 Difference]: Finished difference Result 67002 states and 102636 transitions. [2024-11-18 14:53:51,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:53:51,585 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 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 160 [2024-11-18 14:53:51,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:53:51,659 INFO L225 Difference]: With dead ends: 67002 [2024-11-18 14:53:51,660 INFO L226 Difference]: Without dead ends: 39448 [2024-11-18 14:53:51,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:53:51,699 INFO L432 NwaCegarLoop]: 414 mSDtfsCounter, 565 mSDsluCounter, 2409 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 565 SdHoareTripleChecker+Valid, 2823 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:53:51,699 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [565 Valid, 2823 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:53:51,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39448 states. [2024-11-18 14:53:52,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39448 to 37206. [2024-11-18 14:53:52,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37206 states, 37205 states have (on average 1.4828652062894772) internal successors, (55170), 37205 states have internal predecessors, (55170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:52,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37206 states to 37206 states and 55170 transitions. [2024-11-18 14:53:52,404 INFO L78 Accepts]: Start accepts. Automaton has 37206 states and 55170 transitions. Word has length 160 [2024-11-18 14:53:52,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:53:52,405 INFO L471 AbstractCegarLoop]: Abstraction has 37206 states and 55170 transitions. [2024-11-18 14:53:52,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 17.77777777777778) internal successors, (160), 9 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:52,405 INFO L276 IsEmpty]: Start isEmpty. Operand 37206 states and 55170 transitions. [2024-11-18 14:53:52,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-18 14:53:52,425 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:53:52,425 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:53:52,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 14:53:52,425 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:53:52,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:53:52,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1991122402, now seen corresponding path program 1 times [2024-11-18 14:53:52,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:53:52,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612531130] [2024-11-18 14:53:52,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:53:52,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:53:52,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:53:52,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:53:52,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:53:52,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612531130] [2024-11-18 14:53:52,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612531130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:53:52,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:53:52,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:53:52,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769981899] [2024-11-18 14:53:52,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:53:52,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:53:52,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:53:52,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:53:52,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:53:52,630 INFO L87 Difference]: Start difference. First operand 37206 states and 55170 transitions. Second operand has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:53,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:53:53,198 INFO L93 Difference]: Finished difference Result 75118 states and 115214 transitions. [2024-11-18 14:53:53,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:53:53,198 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 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 160 [2024-11-18 14:53:53,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:53:53,310 INFO L225 Difference]: With dead ends: 75118 [2024-11-18 14:53:53,311 INFO L226 Difference]: Without dead ends: 66172 [2024-11-18 14:53:53,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:53:53,342 INFO L432 NwaCegarLoop]: 681 mSDtfsCounter, 796 mSDsluCounter, 766 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:53:53,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 1447 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 14:53:53,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66172 states. [2024-11-18 14:53:54,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66172 to 41654. [2024-11-18 14:53:54,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41654 states, 41653 states have (on average 1.4927616258132668) internal successors, (62178), 41653 states have internal predecessors, (62178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:54,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41654 states to 41654 states and 62178 transitions. [2024-11-18 14:53:54,352 INFO L78 Accepts]: Start accepts. Automaton has 41654 states and 62178 transitions. Word has length 160 [2024-11-18 14:53:54,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:53:54,353 INFO L471 AbstractCegarLoop]: Abstraction has 41654 states and 62178 transitions. [2024-11-18 14:53:54,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.0) internal successors, (160), 5 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:54,353 INFO L276 IsEmpty]: Start isEmpty. Operand 41654 states and 62178 transitions. [2024-11-18 14:53:54,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-18 14:53:54,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:53:54,368 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:53:54,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 14:53:54,369 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:53:54,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:53:54,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1752131473, now seen corresponding path program 1 times [2024-11-18 14:53:54,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:53:54,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422375757] [2024-11-18 14:53:54,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:53:54,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:53:54,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:53:54,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:53:54,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:53:54,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422375757] [2024-11-18 14:53:54,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422375757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:53:54,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:53:54,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:53:54,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427102331] [2024-11-18 14:53:54,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:53:54,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:53:54,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:53:54,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:53:54,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:53:54,741 INFO L87 Difference]: Start difference. First operand 41654 states and 62178 transitions. Second operand has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:55,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:53:55,420 INFO L93 Difference]: Finished difference Result 160775 states and 239402 transitions. [2024-11-18 14:53:55,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:53:55,421 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 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 160 [2024-11-18 14:53:55,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:53:55,642 INFO L225 Difference]: With dead ends: 160775 [2024-11-18 14:53:55,642 INFO L226 Difference]: Without dead ends: 119186 [2024-11-18 14:53:55,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:53:55,697 INFO L432 NwaCegarLoop]: 735 mSDtfsCounter, 812 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:53:55,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 1504 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:53:55,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119186 states. [2024-11-18 14:53:57,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119186 to 80424. [2024-11-18 14:53:57,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80424 states, 80423 states have (on average 1.4752123148850453) internal successors, (118641), 80423 states have internal predecessors, (118641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:57,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80424 states to 80424 states and 118641 transitions. [2024-11-18 14:53:57,287 INFO L78 Accepts]: Start accepts. Automaton has 80424 states and 118641 transitions. Word has length 160 [2024-11-18 14:53:57,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:53:57,288 INFO L471 AbstractCegarLoop]: Abstraction has 80424 states and 118641 transitions. [2024-11-18 14:53:57,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.0) internal successors, (160), 4 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:57,288 INFO L276 IsEmpty]: Start isEmpty. Operand 80424 states and 118641 transitions. [2024-11-18 14:53:57,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-11-18 14:53:57,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:53:57,317 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:53:57,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 14:53:57,317 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:53:57,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:53:57,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1927797241, now seen corresponding path program 1 times [2024-11-18 14:53:57,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:53:57,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690856381] [2024-11-18 14:53:57,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:53:57,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:53:57,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:53:57,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:53:57,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:53:57,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690856381] [2024-11-18 14:53:57,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690856381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:53:57,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:53:57,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:53:57,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273278807] [2024-11-18 14:53:57,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:53:57,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:53:57,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:53:57,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:53:57,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:53:57,414 INFO L87 Difference]: Start difference. First operand 80424 states and 118641 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:58,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:53:58,246 INFO L93 Difference]: Finished difference Result 160734 states and 237126 transitions. [2024-11-18 14:53:58,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:53:58,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 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 161 [2024-11-18 14:53:58,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:53:58,345 INFO L225 Difference]: With dead ends: 160734 [2024-11-18 14:53:58,346 INFO L226 Difference]: Without dead ends: 80432 [2024-11-18 14:53:58,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:53:58,395 INFO L432 NwaCegarLoop]: 440 mSDtfsCounter, 0 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:53:58,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 874 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:53:58,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80432 states. [2024-11-18 14:53:59,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80432 to 80432. [2024-11-18 14:53:59,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80432 states, 80431 states have (on average 1.4751650483022716) internal successors, (118649), 80431 states have internal predecessors, (118649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:59,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80432 states to 80432 states and 118649 transitions. [2024-11-18 14:53:59,584 INFO L78 Accepts]: Start accepts. Automaton has 80432 states and 118649 transitions. Word has length 161 [2024-11-18 14:53:59,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:53:59,584 INFO L471 AbstractCegarLoop]: Abstraction has 80432 states and 118649 transitions. [2024-11-18 14:53:59,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:53:59,584 INFO L276 IsEmpty]: Start isEmpty. Operand 80432 states and 118649 transitions. [2024-11-18 14:53:59,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-18 14:53:59,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:53:59,610 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:53:59,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 14:53:59,611 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:53:59,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:53:59,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1605463580, now seen corresponding path program 1 times [2024-11-18 14:53:59,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:53:59,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954907917] [2024-11-18 14:53:59,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:53:59,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:00,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:00,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:00,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:00,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954907917] [2024-11-18 14:54:00,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954907917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:00,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:00,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:54:00,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082633028] [2024-11-18 14:54:00,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:00,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:54:00,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:00,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:54:00,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:54:00,141 INFO L87 Difference]: Start difference. First operand 80432 states and 118649 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:00,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:00,622 INFO L93 Difference]: Finished difference Result 217257 states and 319589 transitions. [2024-11-18 14:54:00,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:54:00,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 162 [2024-11-18 14:54:00,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:00,809 INFO L225 Difference]: With dead ends: 217257 [2024-11-18 14:54:00,810 INFO L226 Difference]: Without dead ends: 137923 [2024-11-18 14:54:00,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:54:00,887 INFO L432 NwaCegarLoop]: 809 mSDtfsCounter, 356 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 356 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:00,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [356 Valid, 1208 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:54:00,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137923 states. [2024-11-18 14:54:03,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137923 to 137921. [2024-11-18 14:54:03,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137921 states, 137920 states have (on average 1.4506598027842228) internal successors, (200075), 137920 states have internal predecessors, (200075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:03,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137921 states to 137921 states and 200075 transitions. [2024-11-18 14:54:03,478 INFO L78 Accepts]: Start accepts. Automaton has 137921 states and 200075 transitions. Word has length 162 [2024-11-18 14:54:03,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:03,479 INFO L471 AbstractCegarLoop]: Abstraction has 137921 states and 200075 transitions. [2024-11-18 14:54:03,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:03,479 INFO L276 IsEmpty]: Start isEmpty. Operand 137921 states and 200075 transitions. [2024-11-18 14:54:03,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-18 14:54:03,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:03,521 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:54:03,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-18 14:54:03,521 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:54:03,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:03,522 INFO L85 PathProgramCache]: Analyzing trace with hash 688559993, now seen corresponding path program 1 times [2024-11-18 14:54:03,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:03,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104028121] [2024-11-18 14:54:03,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:03,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:03,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:04,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:04,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:04,608 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104028121] [2024-11-18 14:54:04,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104028121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:04,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:04,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:54:04,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072197727] [2024-11-18 14:54:04,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:04,610 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:54:04,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:04,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:54:04,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:54:04,610 INFO L87 Difference]: Start difference. First operand 137921 states and 200075 transitions. Second operand has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:05,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:05,266 INFO L93 Difference]: Finished difference Result 256178 states and 371804 transitions. [2024-11-18 14:54:05,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:54:05,267 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 162 [2024-11-18 14:54:05,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:05,443 INFO L225 Difference]: With dead ends: 256178 [2024-11-18 14:54:05,443 INFO L226 Difference]: Without dead ends: 119235 [2024-11-18 14:54:05,547 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:54:05,548 INFO L432 NwaCegarLoop]: 471 mSDtfsCounter, 15 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:05,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1372 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:54:05,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119235 states. [2024-11-18 14:54:07,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119235 to 119235. [2024-11-18 14:54:07,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119235 states, 119234 states have (on average 1.4500645788952815) internal successors, (172897), 119234 states have internal predecessors, (172897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:07,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119235 states to 119235 states and 172897 transitions. [2024-11-18 14:54:07,980 INFO L78 Accepts]: Start accepts. Automaton has 119235 states and 172897 transitions. Word has length 162 [2024-11-18 14:54:07,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:07,981 INFO L471 AbstractCegarLoop]: Abstraction has 119235 states and 172897 transitions. [2024-11-18 14:54:07,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.5) internal successors, (162), 4 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:07,981 INFO L276 IsEmpty]: Start isEmpty. Operand 119235 states and 172897 transitions. [2024-11-18 14:54:08,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-18 14:54:08,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:08,019 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:54:08,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-18 14:54:08,019 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:54:08,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:08,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1760978964, now seen corresponding path program 1 times [2024-11-18 14:54:08,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:08,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743642964] [2024-11-18 14:54:08,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:08,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:08,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:08,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:08,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:08,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743642964] [2024-11-18 14:54:08,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743642964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:08,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:08,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:54:08,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909734050] [2024-11-18 14:54:08,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:08,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:54:08,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:08,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:54:08,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:54:08,256 INFO L87 Difference]: Start difference. First operand 119235 states and 172897 transitions. Second operand has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:09,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:09,527 INFO L93 Difference]: Finished difference Result 183195 states and 271397 transitions. [2024-11-18 14:54:09,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:54:09,528 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 0 states have call successors, (0), 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 168 [2024-11-18 14:54:09,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:09,786 INFO L225 Difference]: With dead ends: 183195 [2024-11-18 14:54:09,786 INFO L226 Difference]: Without dead ends: 170345 [2024-11-18 14:54:09,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:54:09,848 INFO L432 NwaCegarLoop]: 539 mSDtfsCounter, 831 mSDsluCounter, 936 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 831 SdHoareTripleChecker+Valid, 1475 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:09,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [831 Valid, 1475 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:54:09,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170345 states. [2024-11-18 14:54:12,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170345 to 132035. [2024-11-18 14:54:12,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132035 states, 132034 states have (on average 1.4578138964206189) internal successors, (192481), 132034 states have internal predecessors, (192481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:12,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132035 states to 132035 states and 192481 transitions. [2024-11-18 14:54:12,334 INFO L78 Accepts]: Start accepts. Automaton has 132035 states and 192481 transitions. Word has length 168 [2024-11-18 14:54:12,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:12,335 INFO L471 AbstractCegarLoop]: Abstraction has 132035 states and 192481 transitions. [2024-11-18 14:54:12,335 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.6) internal successors, (168), 5 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:12,335 INFO L276 IsEmpty]: Start isEmpty. Operand 132035 states and 192481 transitions. [2024-11-18 14:54:12,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-18 14:54:12,365 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:12,365 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:54:12,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-18 14:54:12,365 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:54:12,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:12,366 INFO L85 PathProgramCache]: Analyzing trace with hash 699483931, now seen corresponding path program 1 times [2024-11-18 14:54:12,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:12,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338396683] [2024-11-18 14:54:12,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:12,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:12,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:12,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:12,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:12,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338396683] [2024-11-18 14:54:12,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338396683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:12,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:12,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 14:54:12,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000407783] [2024-11-18 14:54:12,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:12,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 14:54:12,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:12,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 14:54:12,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:54:12,803 INFO L87 Difference]: Start difference. First operand 132035 states and 192481 transitions. Second operand has 10 states, 10 states have (on average 16.8) internal successors, (168), 9 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:14,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:14,246 INFO L93 Difference]: Finished difference Result 247436 states and 360775 transitions. [2024-11-18 14:54:14,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:54:14,247 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.8) internal successors, (168), 9 states have internal predecessors, (168), 0 states have call successors, (0), 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 168 [2024-11-18 14:54:14,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:14,444 INFO L225 Difference]: With dead ends: 247436 [2024-11-18 14:54:14,444 INFO L226 Difference]: Without dead ends: 132035 [2024-11-18 14:54:14,501 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-18 14:54:14,502 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 1832 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1832 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:14,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1832 Valid, 622 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:54:14,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132035 states. [2024-11-18 14:54:16,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132035 to 132035. [2024-11-18 14:54:16,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132035 states, 132034 states have (on average 1.439606465001439) internal successors, (190077), 132034 states have internal predecessors, (190077), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:17,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132035 states to 132035 states and 190077 transitions. [2024-11-18 14:54:17,200 INFO L78 Accepts]: Start accepts. Automaton has 132035 states and 190077 transitions. Word has length 168 [2024-11-18 14:54:17,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:17,200 INFO L471 AbstractCegarLoop]: Abstraction has 132035 states and 190077 transitions. [2024-11-18 14:54:17,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.8) internal successors, (168), 9 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:17,200 INFO L276 IsEmpty]: Start isEmpty. Operand 132035 states and 190077 transitions. [2024-11-18 14:54:17,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-18 14:54:17,251 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:17,255 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:54:17,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-18 14:54:17,256 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:54:17,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:17,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1517392832, now seen corresponding path program 1 times [2024-11-18 14:54:17,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:17,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1964984790] [2024-11-18 14:54:17,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:17,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:18,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:18,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:18,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1964984790] [2024-11-18 14:54:18,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1964984790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:18,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:18,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-18 14:54:18,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900355320] [2024-11-18 14:54:18,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:18,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-18 14:54:18,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:18,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-18 14:54:18,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-18 14:54:18,217 INFO L87 Difference]: Start difference. First operand 132035 states and 190077 transitions. Second operand has 15 states, 15 states have (on average 11.2) internal successors, (168), 15 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:20,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:20,038 INFO L93 Difference]: Finished difference Result 223957 states and 323266 transitions. [2024-11-18 14:54:20,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-18 14:54:20,039 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 11.2) internal successors, (168), 15 states have internal predecessors, (168), 0 states have call successors, (0), 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 168 [2024-11-18 14:54:20,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:20,300 INFO L225 Difference]: With dead ends: 223957 [2024-11-18 14:54:20,300 INFO L226 Difference]: Without dead ends: 193375 [2024-11-18 14:54:20,341 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=226, Invalid=704, Unknown=0, NotChecked=0, Total=930 [2024-11-18 14:54:20,342 INFO L432 NwaCegarLoop]: 524 mSDtfsCounter, 3392 mSDsluCounter, 3978 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3392 SdHoareTripleChecker+Valid, 4502 SdHoareTripleChecker+Invalid, 1004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:20,342 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3392 Valid, 4502 Invalid, 1004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 14:54:20,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193375 states. [2024-11-18 14:54:22,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193375 to 137765. [2024-11-18 14:54:22,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137765 states, 137764 states have (on average 1.428036352022299) internal successors, (196732), 137764 states have internal predecessors, (196732), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:23,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137765 states to 137765 states and 196732 transitions. [2024-11-18 14:54:23,035 INFO L78 Accepts]: Start accepts. Automaton has 137765 states and 196732 transitions. Word has length 168 [2024-11-18 14:54:23,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:23,036 INFO L471 AbstractCegarLoop]: Abstraction has 137765 states and 196732 transitions. [2024-11-18 14:54:23,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.2) internal successors, (168), 15 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:23,036 INFO L276 IsEmpty]: Start isEmpty. Operand 137765 states and 196732 transitions. [2024-11-18 14:54:23,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-18 14:54:23,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:23,078 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:54:23,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-18 14:54:23,079 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:54:23,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:23,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1772221635, now seen corresponding path program 1 times [2024-11-18 14:54:23,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:23,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428350392] [2024-11-18 14:54:23,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:23,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:23,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:23,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:23,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:23,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428350392] [2024-11-18 14:54:23,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428350392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:23,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:23,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-18 14:54:23,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440956525] [2024-11-18 14:54:23,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:23,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-18 14:54:23,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:23,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-18 14:54:23,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2024-11-18 14:54:23,948 INFO L87 Difference]: Start difference. First operand 137765 states and 196732 transitions. Second operand has 16 states, 16 states have (on average 10.5) internal successors, (168), 16 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:26,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:26,026 INFO L93 Difference]: Finished difference Result 248146 states and 359108 transitions. [2024-11-18 14:54:26,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-18 14:54:26,026 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 16 states have internal predecessors, (168), 0 states have call successors, (0), 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 168 [2024-11-18 14:54:26,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:26,354 INFO L225 Difference]: With dead ends: 248146 [2024-11-18 14:54:26,354 INFO L226 Difference]: Without dead ends: 203234 [2024-11-18 14:54:26,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=314, Invalid=876, Unknown=0, NotChecked=0, Total=1190 [2024-11-18 14:54:26,443 INFO L432 NwaCegarLoop]: 647 mSDtfsCounter, 5081 mSDsluCounter, 5153 mSDsCounter, 0 mSdLazyCounter, 1218 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5081 SdHoareTripleChecker+Valid, 5800 SdHoareTripleChecker+Invalid, 1296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:26,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5081 Valid, 5800 Invalid, 1296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1218 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-18 14:54:26,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203234 states. [2024-11-18 14:54:28,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203234 to 143473. [2024-11-18 14:54:29,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143473 states, 143472 states have (on average 1.418416136946582) internal successors, (203503), 143472 states have internal predecessors, (203503), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:29,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143473 states to 143473 states and 203503 transitions. [2024-11-18 14:54:29,260 INFO L78 Accepts]: Start accepts. Automaton has 143473 states and 203503 transitions. Word has length 168 [2024-11-18 14:54:29,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:54:29,260 INFO L471 AbstractCegarLoop]: Abstraction has 143473 states and 203503 transitions. [2024-11-18 14:54:29,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.5) internal successors, (168), 16 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:29,260 INFO L276 IsEmpty]: Start isEmpty. Operand 143473 states and 203503 transitions. [2024-11-18 14:54:29,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-18 14:54:29,296 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:54:29,297 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:54:29,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-18 14:54:29,297 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:54:29,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:54:29,297 INFO L85 PathProgramCache]: Analyzing trace with hash 447901149, now seen corresponding path program 1 times [2024-11-18 14:54:29,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:54:29,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846403330] [2024-11-18 14:54:29,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:54:29,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:54:29,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:54:29,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:54:29,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:54:29,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846403330] [2024-11-18 14:54:29,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846403330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:54:29,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:54:29,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:54:29,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034381761] [2024-11-18 14:54:29,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:54:29,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:54:29,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:54:29,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:54:29,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:54:29,661 INFO L87 Difference]: Start difference. First operand 143473 states and 203503 transitions. Second operand has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:54:31,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:54:31,006 INFO L93 Difference]: Finished difference Result 269889 states and 382323 transitions. [2024-11-18 14:54:31,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:54:31,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.0) internal successors, (168), 4 states have internal predecessors, (168), 0 states have call successors, (0), 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 168 [2024-11-18 14:54:31,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:54:31,189 INFO L225 Difference]: With dead ends: 269889 [2024-11-18 14:54:31,189 INFO L226 Difference]: Without dead ends: 126908 [2024-11-18 14:54:31,291 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:54:31,291 INFO L432 NwaCegarLoop]: 712 mSDtfsCounter, 361 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:54:31,292 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 1772 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:54:31,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126908 states. [2024-11-18 14:54:33,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126908 to 126469. [2024-11-18 14:54:33,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126469 states, 126468 states have (on average 1.414389410760034) internal successors, (178875), 126468 states have internal predecessors, (178875), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)