./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.4.ufo.BOUNDED-8.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 0b2744f3415dbb18037af957678e462154c9b5d1903565ea0dc58b30d01826b2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 20:36:46,135 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 20:36:46,218 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 20:36:46,225 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 20:36:46,226 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 20:36:46,269 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 20:36:46,270 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 20:36:46,271 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 20:36:46,271 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 20:36:46,275 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 20:36:46,275 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 20:36:46,276 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 20:36:46,276 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 20:36:46,277 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 20:36:46,277 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 20:36:46,277 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 20:36:46,278 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 20:36:46,278 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 20:36:46,278 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 20:36:46,279 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 20:36:46,279 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 20:36:46,279 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 20:36:46,280 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 20:36:46,280 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 20:36:46,280 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 20:36:46,280 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 20:36:46,281 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 20:36:46,281 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 20:36:46,281 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 20:36:46,281 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 20:36:46,282 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 20:36:46,282 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 20:36:46,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 20:36:46,282 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 20:36:46,283 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 20:36:46,283 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 20:36:46,283 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 20:36:46,283 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 20:36:46,284 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 20:36:46,284 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 20:36:46,285 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 20:36:46,286 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 20:36:46,286 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b2744f3415dbb18037af957678e462154c9b5d1903565ea0dc58b30d01826b2 [2024-10-12 20:36:46,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 20:36:46,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 20:36:46,586 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 20:36:46,587 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 20:36:46,588 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 20:36:46,589 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-10-12 20:36:48,061 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 20:36:48,414 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 20:36:48,414 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-10-12 20:36:48,432 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51804ca97/cafdf33f3c9c4caea9673f656dd6711f/FLAG31048c7ea [2024-10-12 20:36:48,449 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/51804ca97/cafdf33f3c9c4caea9673f656dd6711f [2024-10-12 20:36:48,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 20:36:48,456 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 20:36:48,458 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 20:36:48,460 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 20:36:48,465 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 20:36:48,466 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:36:48" (1/1) ... [2024-10-12 20:36:48,467 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@436025e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:36:48, skipping insertion in model container [2024-10-12 20:36:48,467 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 08:36:48" (1/1) ... [2024-10-12 20:36:48,557 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 20:36:49,084 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[34568,34581] [2024-10-12 20:36:49,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 20:36:49,271 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 20:36:49,539 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c[34568,34581] [2024-10-12 20:36:49,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 20:36:49,668 INFO L204 MainTranslator]: Completed translation [2024-10-12 20:36:49,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:36:49 WrapperNode [2024-10-12 20:36:49,669 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 20:36:49,670 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 20:36:49,671 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 20:36:49,671 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 20:36:49,678 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:36:49" (1/1) ... [2024-10-12 20:36:49,707 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:36:49" (1/1) ... [2024-10-12 20:36:49,865 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3045 [2024-10-12 20:36:49,870 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 20:36:49,871 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 20:36:49,871 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 20:36:49,871 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 20:36:49,883 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:36:49" (1/1) ... [2024-10-12 20:36:49,887 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:36:49" (1/1) ... [2024-10-12 20:36:49,941 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:36:49" (1/1) ... [2024-10-12 20:36:50,007 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]. [2024-10-12 20:36:50,008 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:36:49" (1/1) ... [2024-10-12 20:36:50,008 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:36:49" (1/1) ... [2024-10-12 20:36:50,039 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:36:49" (1/1) ... [2024-10-12 20:36:50,055 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:36:49" (1/1) ... [2024-10-12 20:36:50,064 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:36:49" (1/1) ... [2024-10-12 20:36:50,082 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:36:49" (1/1) ... [2024-10-12 20:36:50,101 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 20:36:50,103 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 20:36:50,103 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 20:36:50,103 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 20:36:50,104 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:36:49" (1/1) ... [2024-10-12 20:36:50,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 20:36:50,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 20:36:50,138 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 20:36:50,141 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 20:36:50,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 20:36:50,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 20:36:50,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 20:36:50,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 20:36:50,369 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 20:36:50,371 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 20:36:52,714 INFO L? ?]: Removed 219 outVars from TransFormulas that were not future-live. [2024-10-12 20:36:52,714 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 20:36:52,802 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 20:36:52,802 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-12 20:36:52,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:36:52 BoogieIcfgContainer [2024-10-12 20:36:52,803 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 20:36:52,805 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 20:36:52,805 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 20:36:52,808 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 20:36:52,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 08:36:48" (1/3) ... [2024-10-12 20:36:52,809 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344888bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:36:52, skipping insertion in model container [2024-10-12 20:36:52,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 08:36:49" (2/3) ... [2024-10-12 20:36:52,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344888bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 08:36:52, skipping insertion in model container [2024-10-12 20:36:52,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 08:36:52" (3/3) ... [2024-10-12 20:36:52,811 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2024-10-12 20:36:52,829 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 20:36:52,829 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 20:36:52,907 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 20:36:52,915 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;@60d4ece5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 20:36:52,917 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 20:36:52,926 INFO L276 IsEmpty]: Start isEmpty. Operand has 769 states, 767 states have (on average 1.788787483702738) internal successors, (1372), 768 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:36:52,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2024-10-12 20:36:52,954 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:36:52,956 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:36:52,956 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:36:52,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:36:52,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1247333852, now seen corresponding path program 1 times [2024-10-12 20:36:52,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:36:52,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645263108] [2024-10-12 20:36:52,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:36:52,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:36:53,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:36:54,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:36:54,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:36:54,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645263108] [2024-10-12 20:36:54,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645263108] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:36:54,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:36:54,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:36:54,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065915453] [2024-10-12 20:36:54,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:36:54,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:36:54,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:36:54,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:36:54,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:36:54,063 INFO L87 Difference]: Start difference. First operand has 769 states, 767 states have (on average 1.788787483702738) internal successors, (1372), 768 states have internal predecessors, (1372), 0 states have call successors, (0), 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 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:36:54,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:36:54,364 INFO L93 Difference]: Finished difference Result 1381 states and 2437 transitions. [2024-10-12 20:36:54,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:36:54,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 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 315 [2024-10-12 20:36:54,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:36:54,390 INFO L225 Difference]: With dead ends: 1381 [2024-10-12 20:36:54,390 INFO L226 Difference]: Without dead ends: 1214 [2024-10-12 20:36:54,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:36:54,398 INFO L432 NwaCegarLoop]: 1307 mSDtfsCounter, 803 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 2354 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:36:54,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 2354 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:36:54,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2024-10-12 20:36:54,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 1212. [2024-10-12 20:36:54,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1212 states, 1211 states have (on average 1.5631709331131296) internal successors, (1893), 1211 states have internal predecessors, (1893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:36:54,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1212 states to 1212 states and 1893 transitions. [2024-10-12 20:36:54,520 INFO L78 Accepts]: Start accepts. Automaton has 1212 states and 1893 transitions. Word has length 315 [2024-10-12 20:36:54,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:36:54,524 INFO L471 AbstractCegarLoop]: Abstraction has 1212 states and 1893 transitions. [2024-10-12 20:36:54,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.0) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:36:54,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1212 states and 1893 transitions. [2024-10-12 20:36:54,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2024-10-12 20:36:54,532 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:36:54,532 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:36:54,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 20:36:54,533 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:36:54,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:36:54,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1077006667, now seen corresponding path program 1 times [2024-10-12 20:36:54,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:36:54,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164833038] [2024-10-12 20:36:54,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:36:54,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:36:55,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:36:56,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:36:56,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:36:56,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164833038] [2024-10-12 20:36:56,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164833038] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:36:56,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:36:56,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:36:56,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813265504] [2024-10-12 20:36:56,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:36:56,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 20:36:56,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:36:56,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 20:36:56,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:36:56,052 INFO L87 Difference]: Start difference. First operand 1212 states and 1893 transitions. Second operand has 4 states, 4 states have (on average 78.75) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:36:56,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:36:56,345 INFO L93 Difference]: Finished difference Result 5942 states and 9258 transitions. [2024-10-12 20:36:56,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:36:56,346 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 78.75) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 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 315 [2024-10-12 20:36:56,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:36:56,368 INFO L225 Difference]: With dead ends: 5942 [2024-10-12 20:36:56,368 INFO L226 Difference]: Without dead ends: 4740 [2024-10-12 20:36:56,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:36:56,418 INFO L432 NwaCegarLoop]: 1810 mSDtfsCounter, 3827 mSDsluCounter, 2927 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3827 SdHoareTripleChecker+Valid, 4737 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:36:56,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3827 Valid, 4737 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:36:56,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4740 states. [2024-10-12 20:36:56,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4740 to 2382. [2024-10-12 20:36:56,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2382 states, 2381 states have (on average 1.5531289374212516) internal successors, (3698), 2381 states have internal predecessors, (3698), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:36:56,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2382 states to 2382 states and 3698 transitions. [2024-10-12 20:36:56,502 INFO L78 Accepts]: Start accepts. Automaton has 2382 states and 3698 transitions. Word has length 315 [2024-10-12 20:36:56,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:36:56,502 INFO L471 AbstractCegarLoop]: Abstraction has 2382 states and 3698 transitions. [2024-10-12 20:36:56,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.75) internal successors, (315), 3 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:36:56,503 INFO L276 IsEmpty]: Start isEmpty. Operand 2382 states and 3698 transitions. [2024-10-12 20:36:56,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-10-12 20:36:56,509 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:36:56,509 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:36:56,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 20:36:56,510 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:36:56,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:36:56,511 INFO L85 PathProgramCache]: Analyzing trace with hash -989782416, now seen corresponding path program 1 times [2024-10-12 20:36:56,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:36:56,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284680655] [2024-10-12 20:36:56,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:36:56,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:36:56,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:36:56,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:36:56,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:36:56,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284680655] [2024-10-12 20:36:56,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284680655] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:36:56,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:36:56,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:36:56,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129965122] [2024-10-12 20:36:56,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:36:56,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:36:56,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:36:56,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:36:56,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:36:56,711 INFO L87 Difference]: Start difference. First operand 2382 states and 3698 transitions. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:36:56,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:36:56,780 INFO L93 Difference]: Finished difference Result 7111 states and 11033 transitions. [2024-10-12 20:36:56,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:36:56,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 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 317 [2024-10-12 20:36:56,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:36:56,798 INFO L225 Difference]: With dead ends: 7111 [2024-10-12 20:36:56,799 INFO L226 Difference]: Without dead ends: 4749 [2024-10-12 20:36:56,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:36:56,805 INFO L432 NwaCegarLoop]: 2378 mSDtfsCounter, 1187 mSDsluCounter, 1187 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 3565 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:36:56,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1187 Valid, 3565 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:36:56,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4749 states. [2024-10-12 20:36:56,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4749 to 2395. [2024-10-12 20:36:56,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2395 states, 2394 states have (on average 1.5526315789473684) internal successors, (3717), 2394 states have internal predecessors, (3717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:36:56,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2395 states to 2395 states and 3717 transitions. [2024-10-12 20:36:56,884 INFO L78 Accepts]: Start accepts. Automaton has 2395 states and 3717 transitions. Word has length 317 [2024-10-12 20:36:56,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:36:56,884 INFO L471 AbstractCegarLoop]: Abstraction has 2395 states and 3717 transitions. [2024-10-12 20:36:56,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:36:56,888 INFO L276 IsEmpty]: Start isEmpty. Operand 2395 states and 3717 transitions. [2024-10-12 20:36:56,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-10-12 20:36:56,894 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:36:56,894 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:36:56,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 20:36:56,895 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:36:56,895 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:36:56,896 INFO L85 PathProgramCache]: Analyzing trace with hash -489273237, now seen corresponding path program 1 times [2024-10-12 20:36:56,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:36:56,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607786782] [2024-10-12 20:36:56,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:36:56,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:36:56,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:36:57,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:36:57,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:36:57,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607786782] [2024-10-12 20:36:57,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607786782] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:36:57,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:36:57,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:36:57,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496963658] [2024-10-12 20:36:57,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:36:57,176 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:36:57,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:36:57,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:36:57,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:36:57,177 INFO L87 Difference]: Start difference. First operand 2395 states and 3717 transitions. Second operand has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:36:57,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:36:57,295 INFO L93 Difference]: Finished difference Result 6948 states and 10744 transitions. [2024-10-12 20:36:57,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:36:57,296 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 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 317 [2024-10-12 20:36:57,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:36:57,313 INFO L225 Difference]: With dead ends: 6948 [2024-10-12 20:36:57,313 INFO L226 Difference]: Without dead ends: 4690 [2024-10-12 20:36:57,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:36:57,323 INFO L432 NwaCegarLoop]: 2323 mSDtfsCounter, 1059 mSDsluCounter, 1137 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 3460 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:36:57,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1059 Valid, 3460 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:36:57,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4690 states. [2024-10-12 20:36:57,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4690 to 4688. [2024-10-12 20:36:57,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4688 states, 4687 states have (on average 1.543417964582889) internal successors, (7234), 4687 states have internal predecessors, (7234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:36:57,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4688 states to 4688 states and 7234 transitions. [2024-10-12 20:36:57,447 INFO L78 Accepts]: Start accepts. Automaton has 4688 states and 7234 transitions. Word has length 317 [2024-10-12 20:36:57,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:36:57,447 INFO L471 AbstractCegarLoop]: Abstraction has 4688 states and 7234 transitions. [2024-10-12 20:36:57,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.66666666666667) internal successors, (317), 3 states have internal predecessors, (317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:36:57,448 INFO L276 IsEmpty]: Start isEmpty. Operand 4688 states and 7234 transitions. [2024-10-12 20:36:57,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2024-10-12 20:36:57,458 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:36:57,458 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:36:57,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 20:36:57,459 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:36:57,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:36:57,460 INFO L85 PathProgramCache]: Analyzing trace with hash -205031999, now seen corresponding path program 1 times [2024-10-12 20:36:57,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:36:57,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893314124] [2024-10-12 20:36:57,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:36:57,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:36:57,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:36:57,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:36:57,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:36:57,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893314124] [2024-10-12 20:36:57,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893314124] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:36:57,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:36:57,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:36:57,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911187518] [2024-10-12 20:36:57,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:36:57,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:36:57,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:36:57,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:36:57,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:36:57,678 INFO L87 Difference]: Start difference. First operand 4688 states and 7234 transitions. Second operand has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:36:57,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:36:57,746 INFO L93 Difference]: Finished difference Result 9339 states and 14402 transitions. [2024-10-12 20:36:57,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:36:57,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 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 318 [2024-10-12 20:36:57,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:36:57,766 INFO L225 Difference]: With dead ends: 9339 [2024-10-12 20:36:57,766 INFO L226 Difference]: Without dead ends: 4706 [2024-10-12 20:36:57,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:36:57,774 INFO L432 NwaCegarLoop]: 1208 mSDtfsCounter, 5 mSDsluCounter, 1195 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2403 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:36:57,775 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2403 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:36:57,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4706 states. [2024-10-12 20:36:57,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4706 to 4706. [2024-10-12 20:36:57,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4706 states, 4705 states have (on average 1.5419766206163656) internal successors, (7255), 4705 states have internal predecessors, (7255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:36:57,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4706 states to 4706 states and 7255 transitions. [2024-10-12 20:36:57,878 INFO L78 Accepts]: Start accepts. Automaton has 4706 states and 7255 transitions. Word has length 318 [2024-10-12 20:36:57,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:36:57,879 INFO L471 AbstractCegarLoop]: Abstraction has 4706 states and 7255 transitions. [2024-10-12 20:36:57,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.0) internal successors, (318), 3 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:36:57,880 INFO L276 IsEmpty]: Start isEmpty. Operand 4706 states and 7255 transitions. [2024-10-12 20:36:57,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2024-10-12 20:36:57,889 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:36:57,889 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:36:57,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 20:36:57,889 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:36:57,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:36:57,890 INFO L85 PathProgramCache]: Analyzing trace with hash -747692026, now seen corresponding path program 1 times [2024-10-12 20:36:57,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:36:57,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856790437] [2024-10-12 20:36:57,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:36:57,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:36:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:36:58,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:36:58,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:36:58,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856790437] [2024-10-12 20:36:58,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856790437] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:36:58,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:36:58,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:36:58,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899031321] [2024-10-12 20:36:58,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:36:58,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:36:58,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:36:58,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:36:58,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:36:58,131 INFO L87 Difference]: Start difference. First operand 4706 states and 7255 transitions. Second operand has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:36:58,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:36:58,330 INFO L93 Difference]: Finished difference Result 13597 states and 20880 transitions. [2024-10-12 20:36:58,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:36:58,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 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 319 [2024-10-12 20:36:58,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:36:58,381 INFO L225 Difference]: With dead ends: 13597 [2024-10-12 20:36:58,381 INFO L226 Difference]: Without dead ends: 9131 [2024-10-12 20:36:58,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:36:58,391 INFO L432 NwaCegarLoop]: 2330 mSDtfsCounter, 1053 mSDsluCounter, 1137 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 3467 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:36:58,391 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1053 Valid, 3467 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:36:58,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9131 states. [2024-10-12 20:36:58,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9131 to 9129. [2024-10-12 20:36:58,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9129 states, 9128 states have (on average 1.5305652936021035) internal successors, (13971), 9128 states have internal predecessors, (13971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:36:58,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9129 states to 9129 states and 13971 transitions. [2024-10-12 20:36:58,643 INFO L78 Accepts]: Start accepts. Automaton has 9129 states and 13971 transitions. Word has length 319 [2024-10-12 20:36:58,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:36:58,644 INFO L471 AbstractCegarLoop]: Abstraction has 9129 states and 13971 transitions. [2024-10-12 20:36:58,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.33333333333333) internal successors, (319), 3 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:36:58,646 INFO L276 IsEmpty]: Start isEmpty. Operand 9129 states and 13971 transitions. [2024-10-12 20:36:58,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2024-10-12 20:36:58,662 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:36:58,662 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:36:58,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 20:36:58,663 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:36:58,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:36:58,663 INFO L85 PathProgramCache]: Analyzing trace with hash -45038237, now seen corresponding path program 1 times [2024-10-12 20:36:58,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:36:58,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381399438] [2024-10-12 20:36:58,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:36:58,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:36:58,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:36:59,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:36:59,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:36:59,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381399438] [2024-10-12 20:36:59,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381399438] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:36:59,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:36:59,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:36:59,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112221602] [2024-10-12 20:36:59,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:36:59,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 20:36:59,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:36:59,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 20:36:59,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:36:59,778 INFO L87 Difference]: Start difference. First operand 9129 states and 13971 transitions. Second operand has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:36:59,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:36:59,940 INFO L93 Difference]: Finished difference Result 26456 states and 40289 transitions. [2024-10-12 20:36:59,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 20:36:59,941 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 0 states have call successors, (0), 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 319 [2024-10-12 20:36:59,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:36:59,987 INFO L225 Difference]: With dead ends: 26456 [2024-10-12 20:36:59,987 INFO L226 Difference]: Without dead ends: 17862 [2024-10-12 20:37:00,003 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 [2024-10-12 20:37:00,007 INFO L432 NwaCegarLoop]: 2373 mSDtfsCounter, 1156 mSDsluCounter, 3561 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1156 SdHoareTripleChecker+Valid, 5934 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:37:00,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1156 Valid, 5934 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:37:00,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17862 states. [2024-10-12 20:37:00,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17862 to 9364. [2024-10-12 20:37:00,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9364 states, 9363 states have (on average 1.5335896614333013) internal successors, (14359), 9363 states have internal predecessors, (14359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:00,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9364 states to 9364 states and 14359 transitions. [2024-10-12 20:37:00,300 INFO L78 Accepts]: Start accepts. Automaton has 9364 states and 14359 transitions. Word has length 319 [2024-10-12 20:37:00,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:37:00,300 INFO L471 AbstractCegarLoop]: Abstraction has 9364 states and 14359 transitions. [2024-10-12 20:37:00,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:00,301 INFO L276 IsEmpty]: Start isEmpty. Operand 9364 states and 14359 transitions. [2024-10-12 20:37:00,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2024-10-12 20:37:00,315 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:37:00,316 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:37:00,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 20:37:00,316 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:37:00,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:37:00,317 INFO L85 PathProgramCache]: Analyzing trace with hash -499854662, now seen corresponding path program 1 times [2024-10-12 20:37:00,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:37:00,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036071219] [2024-10-12 20:37:00,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:37:00,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:37:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:37:00,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:37:00,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:37:00,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036071219] [2024-10-12 20:37:00,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036071219] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:37:00,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:37:00,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:37:00,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236816452] [2024-10-12 20:37:00,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:37:00,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:37:00,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:37:00,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:37:00,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:37:00,502 INFO L87 Difference]: Start difference. First operand 9364 states and 14359 transitions. Second operand has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:00,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:37:00,633 INFO L93 Difference]: Finished difference Result 20268 states and 31277 transitions. [2024-10-12 20:37:00,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:37:00,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 320 [2024-10-12 20:37:00,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:37:00,662 INFO L225 Difference]: With dead ends: 20268 [2024-10-12 20:37:00,662 INFO L226 Difference]: Without dead ends: 12662 [2024-10-12 20:37:00,676 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:37:00,677 INFO L432 NwaCegarLoop]: 1545 mSDtfsCounter, 536 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 2530 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:37:00,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 2530 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:37:00,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12662 states. [2024-10-12 20:37:00,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12662 to 11268. [2024-10-12 20:37:00,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11268 states, 11267 states have (on average 1.5531197301854975) internal successors, (17499), 11267 states have internal predecessors, (17499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:01,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11268 states to 11268 states and 17499 transitions. [2024-10-12 20:37:01,021 INFO L78 Accepts]: Start accepts. Automaton has 11268 states and 17499 transitions. Word has length 320 [2024-10-12 20:37:01,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:37:01,021 INFO L471 AbstractCegarLoop]: Abstraction has 11268 states and 17499 transitions. [2024-10-12 20:37:01,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 106.66666666666667) internal successors, (320), 3 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:01,022 INFO L276 IsEmpty]: Start isEmpty. Operand 11268 states and 17499 transitions. [2024-10-12 20:37:01,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2024-10-12 20:37:01,040 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:37:01,041 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:37:01,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 20:37:01,041 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:37:01,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:37:01,042 INFO L85 PathProgramCache]: Analyzing trace with hash 326889082, now seen corresponding path program 1 times [2024-10-12 20:37:01,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:37:01,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218208031] [2024-10-12 20:37:01,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:37:01,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:37:01,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:37:01,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:37:01,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:37:01,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218208031] [2024-10-12 20:37:01,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218208031] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:37:01,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:37:01,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:37:01,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067638323] [2024-10-12 20:37:01,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:37:01,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:37:01,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:37:01,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:37:01,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:37:01,259 INFO L87 Difference]: Start difference. First operand 11268 states and 17499 transitions. Second operand has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:01,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:37:01,408 INFO L93 Difference]: Finished difference Result 32244 states and 49788 transitions. [2024-10-12 20:37:01,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:37:01,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 321 [2024-10-12 20:37:01,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:37:01,455 INFO L225 Difference]: With dead ends: 32244 [2024-10-12 20:37:01,455 INFO L226 Difference]: Without dead ends: 21774 [2024-10-12 20:37:01,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:37:01,476 INFO L432 NwaCegarLoop]: 2240 mSDtfsCounter, 1052 mSDsluCounter, 1183 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1052 SdHoareTripleChecker+Valid, 3423 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:37:01,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1052 Valid, 3423 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:37:01,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21774 states. [2024-10-12 20:37:01,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21774 to 11372. [2024-10-12 20:37:01,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11372 states, 11371 states have (on average 1.5514906340691232) internal successors, (17642), 11371 states have internal predecessors, (17642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:01,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11372 states to 11372 states and 17642 transitions. [2024-10-12 20:37:01,802 INFO L78 Accepts]: Start accepts. Automaton has 11372 states and 17642 transitions. Word has length 321 [2024-10-12 20:37:01,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:37:01,802 INFO L471 AbstractCegarLoop]: Abstraction has 11372 states and 17642 transitions. [2024-10-12 20:37:01,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.0) internal successors, (321), 3 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:01,803 INFO L276 IsEmpty]: Start isEmpty. Operand 11372 states and 17642 transitions. [2024-10-12 20:37:01,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2024-10-12 20:37:01,818 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:37:01,818 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:37:01,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 20:37:01,819 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:37:01,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:37:01,819 INFO L85 PathProgramCache]: Analyzing trace with hash 599500895, now seen corresponding path program 1 times [2024-10-12 20:37:01,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:37:01,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140728465] [2024-10-12 20:37:01,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:37:01,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:37:01,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:37:02,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:37:02,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:37:02,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140728465] [2024-10-12 20:37:02,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140728465] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:37:02,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:37:02,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:37:02,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702878357] [2024-10-12 20:37:02,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:37:02,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:37:02,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:37:02,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:37:02,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:37:02,066 INFO L87 Difference]: Start difference. First operand 11372 states and 17642 transitions. Second operand has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:02,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:37:02,165 INFO L93 Difference]: Finished difference Result 21974 states and 33949 transitions. [2024-10-12 20:37:02,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:37:02,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 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 322 [2024-10-12 20:37:02,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:37:02,194 INFO L225 Difference]: With dead ends: 21974 [2024-10-12 20:37:02,194 INFO L226 Difference]: Without dead ends: 11497 [2024-10-12 20:37:02,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:37:02,211 INFO L432 NwaCegarLoop]: 1206 mSDtfsCounter, 5 mSDsluCounter, 1191 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2397 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 20:37:02,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2397 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 20:37:02,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11497 states. [2024-10-12 20:37:02,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11497 to 11497. [2024-10-12 20:37:02,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11497 states, 11496 states have (on average 1.5473208072373) internal successors, (17788), 11496 states have internal predecessors, (17788), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:02,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11497 states to 11497 states and 17788 transitions. [2024-10-12 20:37:02,456 INFO L78 Accepts]: Start accepts. Automaton has 11497 states and 17788 transitions. Word has length 322 [2024-10-12 20:37:02,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:37:02,457 INFO L471 AbstractCegarLoop]: Abstraction has 11497 states and 17788 transitions. [2024-10-12 20:37:02,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.33333333333333) internal successors, (322), 3 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:02,457 INFO L276 IsEmpty]: Start isEmpty. Operand 11497 states and 17788 transitions. [2024-10-12 20:37:02,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2024-10-12 20:37:02,472 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:37:02,472 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:37:02,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 20:37:02,473 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:37:02,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:37:02,474 INFO L85 PathProgramCache]: Analyzing trace with hash -698570135, now seen corresponding path program 1 times [2024-10-12 20:37:02,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:37:02,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152605165] [2024-10-12 20:37:02,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:37:02,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:37:02,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:37:03,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:37:03,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:37:03,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152605165] [2024-10-12 20:37:03,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152605165] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:37:03,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:37:03,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 20:37:03,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62800454] [2024-10-12 20:37:03,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:37:03,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 20:37:03,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:37:03,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 20:37:03,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:37:03,095 INFO L87 Difference]: Start difference. First operand 11497 states and 17788 transitions. Second operand has 9 states, 9 states have (on average 35.888888888888886) internal successors, (323), 9 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:07,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:37:07,002 INFO L93 Difference]: Finished difference Result 88361 states and 140237 transitions. [2024-10-12 20:37:07,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-10-12 20:37:07,003 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 35.888888888888886) internal successors, (323), 9 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 323 [2024-10-12 20:37:07,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:37:07,206 INFO L225 Difference]: With dead ends: 88361 [2024-10-12 20:37:07,206 INFO L226 Difference]: Without dead ends: 84991 [2024-10-12 20:37:07,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 423 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=370, Invalid=1112, Unknown=0, NotChecked=0, Total=1482 [2024-10-12 20:37:07,247 INFO L432 NwaCegarLoop]: 1795 mSDtfsCounter, 22357 mSDsluCounter, 8809 mSDsCounter, 0 mSdLazyCounter, 3810 mSolverCounterSat, 371 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22357 SdHoareTripleChecker+Valid, 10604 SdHoareTripleChecker+Invalid, 4181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 371 IncrementalHoareTripleChecker+Valid, 3810 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-10-12 20:37:07,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22357 Valid, 10604 Invalid, 4181 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [371 Valid, 3810 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-10-12 20:37:07,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84991 states. [2024-10-12 20:37:08,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84991 to 28805. [2024-10-12 20:37:08,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28805 states, 28804 states have (on average 1.5577003194000834) internal successors, (44868), 28804 states have internal predecessors, (44868), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:08,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28805 states to 28805 states and 44868 transitions. [2024-10-12 20:37:08,518 INFO L78 Accepts]: Start accepts. Automaton has 28805 states and 44868 transitions. Word has length 323 [2024-10-12 20:37:08,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:37:08,519 INFO L471 AbstractCegarLoop]: Abstraction has 28805 states and 44868 transitions. [2024-10-12 20:37:08,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 35.888888888888886) internal successors, (323), 9 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:08,520 INFO L276 IsEmpty]: Start isEmpty. Operand 28805 states and 44868 transitions. [2024-10-12 20:37:08,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2024-10-12 20:37:08,555 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:37:08,555 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:37:08,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 20:37:08,555 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:37:08,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:37:08,556 INFO L85 PathProgramCache]: Analyzing trace with hash 106650834, now seen corresponding path program 1 times [2024-10-12 20:37:08,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:37:08,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378191966] [2024-10-12 20:37:08,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:37:08,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:37:08,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:37:09,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:37:09,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:37:09,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378191966] [2024-10-12 20:37:09,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378191966] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:37:09,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:37:09,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-12 20:37:09,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616393402] [2024-10-12 20:37:09,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:37:09,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 20:37:09,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:37:09,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 20:37:09,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-12 20:37:09,791 INFO L87 Difference]: Start difference. First operand 28805 states and 44868 transitions. Second operand has 9 states, 9 states have (on average 35.888888888888886) internal successors, (323), 8 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:11,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:37:11,765 INFO L93 Difference]: Finished difference Result 75200 states and 118665 transitions. [2024-10-12 20:37:11,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-12 20:37:11,766 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 35.888888888888886) internal successors, (323), 8 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 323 [2024-10-12 20:37:11,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:37:11,872 INFO L225 Difference]: With dead ends: 75200 [2024-10-12 20:37:11,873 INFO L226 Difference]: Without dead ends: 58826 [2024-10-12 20:37:11,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=121, Invalid=221, Unknown=0, NotChecked=0, Total=342 [2024-10-12 20:37:11,899 INFO L432 NwaCegarLoop]: 1247 mSDtfsCounter, 9776 mSDsluCounter, 5350 mSDsCounter, 0 mSdLazyCounter, 1963 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9776 SdHoareTripleChecker+Valid, 6597 SdHoareTripleChecker+Invalid, 2071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 1963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-12 20:37:11,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9776 Valid, 6597 Invalid, 2071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 1963 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-12 20:37:11,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58826 states. [2024-10-12 20:37:12,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58826 to 24868. [2024-10-12 20:37:12,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24868 states, 24867 states have (on average 1.546346563718985) internal successors, (38453), 24867 states have internal predecessors, (38453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:12,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24868 states to 24868 states and 38453 transitions. [2024-10-12 20:37:12,617 INFO L78 Accepts]: Start accepts. Automaton has 24868 states and 38453 transitions. Word has length 323 [2024-10-12 20:37:12,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:37:12,618 INFO L471 AbstractCegarLoop]: Abstraction has 24868 states and 38453 transitions. [2024-10-12 20:37:12,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 35.888888888888886) internal successors, (323), 8 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:12,618 INFO L276 IsEmpty]: Start isEmpty. Operand 24868 states and 38453 transitions. [2024-10-12 20:37:12,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2024-10-12 20:37:12,635 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:37:12,636 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:37:12,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-12 20:37:12,636 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:37:12,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:37:12,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1615688782, now seen corresponding path program 1 times [2024-10-12 20:37:12,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:37:12,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315584064] [2024-10-12 20:37:12,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:37:12,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:37:12,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:37:13,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:37:13,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:37:13,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315584064] [2024-10-12 20:37:13,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315584064] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:37:13,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:37:13,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 20:37:13,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485783137] [2024-10-12 20:37:13,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:37:13,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 20:37:13,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:37:13,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 20:37:13,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:37:13,644 INFO L87 Difference]: Start difference. First operand 24868 states and 38453 transitions. Second operand has 4 states, 4 states have (on average 80.75) internal successors, (323), 4 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:13,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:37:13,913 INFO L93 Difference]: Finished difference Result 51376 states and 81081 transitions. [2024-10-12 20:37:13,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 20:37:13,914 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 80.75) internal successors, (323), 4 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 323 [2024-10-12 20:37:13,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:37:13,977 INFO L225 Difference]: With dead ends: 51376 [2024-10-12 20:37:13,978 INFO L226 Difference]: Without dead ends: 38130 [2024-10-12 20:37:14,005 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 [2024-10-12 20:37:14,006 INFO L432 NwaCegarLoop]: 1343 mSDtfsCounter, 1359 mSDsluCounter, 1416 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1359 SdHoareTripleChecker+Valid, 2759 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:37:14,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1359 Valid, 2759 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:37:14,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38130 states. [2024-10-12 20:37:14,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38130 to 38128. [2024-10-12 20:37:14,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38128 states, 38127 states have (on average 1.5555642982663205) internal successors, (59309), 38127 states have internal predecessors, (59309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:14,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38128 states to 38128 states and 59309 transitions. [2024-10-12 20:37:14,745 INFO L78 Accepts]: Start accepts. Automaton has 38128 states and 59309 transitions. Word has length 323 [2024-10-12 20:37:14,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:37:14,746 INFO L471 AbstractCegarLoop]: Abstraction has 38128 states and 59309 transitions. [2024-10-12 20:37:14,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.75) internal successors, (323), 4 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:14,747 INFO L276 IsEmpty]: Start isEmpty. Operand 38128 states and 59309 transitions. [2024-10-12 20:37:14,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2024-10-12 20:37:14,770 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:37:14,770 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:37:14,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 20:37:14,771 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:37:14,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:37:14,772 INFO L85 PathProgramCache]: Analyzing trace with hash 187353507, now seen corresponding path program 1 times [2024-10-12 20:37:14,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:37:14,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789121062] [2024-10-12 20:37:14,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:37:14,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:37:15,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:37:15,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:37:15,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:37:15,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789121062] [2024-10-12 20:37:15,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789121062] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:37:15,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:37:15,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:37:15,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871415291] [2024-10-12 20:37:15,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:37:15,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 20:37:15,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:37:15,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 20:37:15,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:37:15,850 INFO L87 Difference]: Start difference. First operand 38128 states and 59309 transitions. Second operand has 4 states, 4 states have (on average 80.75) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:16,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:37:16,596 INFO L93 Difference]: Finished difference Result 186862 states and 290481 transitions. [2024-10-12 20:37:16,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:37:16,596 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 80.75) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 323 [2024-10-12 20:37:16,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:37:16,891 INFO L225 Difference]: With dead ends: 186862 [2024-10-12 20:37:16,891 INFO L226 Difference]: Without dead ends: 148801 [2024-10-12 20:37:16,987 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:37:16,987 INFO L432 NwaCegarLoop]: 2049 mSDtfsCounter, 3531 mSDsluCounter, 3106 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3531 SdHoareTripleChecker+Valid, 5155 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:37:16,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3531 Valid, 5155 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:37:17,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148801 states. [2024-10-12 20:37:18,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148801 to 74453. [2024-10-12 20:37:18,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74453 states, 74452 states have (on average 1.5466877988502659) internal successors, (115154), 74452 states have internal predecessors, (115154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:19,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74453 states to 74453 states and 115154 transitions. [2024-10-12 20:37:19,114 INFO L78 Accepts]: Start accepts. Automaton has 74453 states and 115154 transitions. Word has length 323 [2024-10-12 20:37:19,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:37:19,115 INFO L471 AbstractCegarLoop]: Abstraction has 74453 states and 115154 transitions. [2024-10-12 20:37:19,115 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 80.75) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:19,115 INFO L276 IsEmpty]: Start isEmpty. Operand 74453 states and 115154 transitions. [2024-10-12 20:37:19,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2024-10-12 20:37:19,165 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:37:19,166 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:37:19,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-12 20:37:19,166 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:37:19,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:37:19,167 INFO L85 PathProgramCache]: Analyzing trace with hash -1989550314, now seen corresponding path program 1 times [2024-10-12 20:37:19,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:37:19,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319144060] [2024-10-12 20:37:19,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:37:19,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:37:19,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:37:19,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:37:19,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:37:19,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319144060] [2024-10-12 20:37:19,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319144060] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:37:19,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:37:19,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:37:19,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005801997] [2024-10-12 20:37:19,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:37:19,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:37:19,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:37:19,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:37:19,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:37:19,398 INFO L87 Difference]: Start difference. First operand 74453 states and 115154 transitions. Second operand has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:20,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:37:20,299 INFO L93 Difference]: Finished difference Result 218339 states and 337488 transitions. [2024-10-12 20:37:20,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:37:20,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 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 325 [2024-10-12 20:37:20,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:37:20,512 INFO L225 Difference]: With dead ends: 218339 [2024-10-12 20:37:20,512 INFO L226 Difference]: Without dead ends: 145370 [2024-10-12 20:37:20,591 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:37:20,592 INFO L432 NwaCegarLoop]: 2206 mSDtfsCounter, 1033 mSDsluCounter, 1126 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 3332 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:37:20,592 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1033 Valid, 3332 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:37:20,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145370 states. [2024-10-12 20:37:23,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145370 to 145368. [2024-10-12 20:37:23,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145368 states, 145367 states have (on average 1.538960011556956) internal successors, (223714), 145367 states have internal predecessors, (223714), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:23,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145368 states to 145368 states and 223714 transitions. [2024-10-12 20:37:23,452 INFO L78 Accepts]: Start accepts. Automaton has 145368 states and 223714 transitions. Word has length 325 [2024-10-12 20:37:23,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:37:23,452 INFO L471 AbstractCegarLoop]: Abstraction has 145368 states and 223714 transitions. [2024-10-12 20:37:23,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.33333333333333) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:23,452 INFO L276 IsEmpty]: Start isEmpty. Operand 145368 states and 223714 transitions. [2024-10-12 20:37:23,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2024-10-12 20:37:23,568 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:37:23,569 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:37:23,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-12 20:37:23,570 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:37:23,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:37:23,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1964641127, now seen corresponding path program 1 times [2024-10-12 20:37:23,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:37:23,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815999076] [2024-10-12 20:37:23,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:37:23,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:37:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:37:24,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:37:24,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:37:24,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815999076] [2024-10-12 20:37:24,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815999076] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:37:24,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:37:24,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:37:24,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759172383] [2024-10-12 20:37:24,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:37:24,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 20:37:24,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:37:24,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 20:37:24,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 20:37:24,958 INFO L87 Difference]: Start difference. First operand 145368 states and 223714 transitions. Second operand has 4 states, 4 states have (on average 81.25) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:27,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:37:27,848 INFO L93 Difference]: Finished difference Result 713998 states and 1099189 transitions. [2024-10-12 20:37:27,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 20:37:27,853 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 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 325 [2024-10-12 20:37:27,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:37:28,874 INFO L225 Difference]: With dead ends: 713998 [2024-10-12 20:37:28,875 INFO L226 Difference]: Without dead ends: 568918 [2024-10-12 20:37:28,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-12 20:37:28,991 INFO L432 NwaCegarLoop]: 1748 mSDtfsCounter, 3683 mSDsluCounter, 2807 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3683 SdHoareTripleChecker+Valid, 4555 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 20:37:28,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3683 Valid, 4555 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 20:37:29,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568918 states. [2024-10-12 20:37:37,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568918 to 284732. [2024-10-12 20:37:37,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284732 states, 284731 states have (on average 1.5332928272650326) internal successors, (436576), 284731 states have internal predecessors, (436576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:37,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284732 states to 284732 states and 436576 transitions. [2024-10-12 20:37:37,904 INFO L78 Accepts]: Start accepts. Automaton has 284732 states and 436576 transitions. Word has length 325 [2024-10-12 20:37:37,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 20:37:37,905 INFO L471 AbstractCegarLoop]: Abstraction has 284732 states and 436576 transitions. [2024-10-12 20:37:37,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.25) internal successors, (325), 3 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:37,905 INFO L276 IsEmpty]: Start isEmpty. Operand 284732 states and 436576 transitions. [2024-10-12 20:37:38,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2024-10-12 20:37:38,027 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 20:37:38,027 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 20:37:38,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-12 20:37:38,027 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 20:37:38,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 20:37:38,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1919751252, now seen corresponding path program 1 times [2024-10-12 20:37:38,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 20:37:38,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590527933] [2024-10-12 20:37:38,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 20:37:38,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 20:37:38,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 20:37:39,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 20:37:39,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 20:37:39,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590527933] [2024-10-12 20:37:39,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590527933] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 20:37:39,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 20:37:39,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 20:37:39,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450988357] [2024-10-12 20:37:39,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 20:37:39,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 20:37:39,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 20:37:39,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 20:37:39,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:37:39,203 INFO L87 Difference]: Start difference. First operand 284732 states and 436576 transitions. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 20:37:42,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 20:37:42,135 INFO L93 Difference]: Finished difference Result 840157 states and 1286475 transitions. [2024-10-12 20:37:42,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 20:37:42,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 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 327 [2024-10-12 20:37:42,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 20:37:43,135 INFO L225 Difference]: With dead ends: 840157 [2024-10-12 20:37:43,135 INFO L226 Difference]: Without dead ends: 556947 [2024-10-12 20:37:44,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 20:37:44,228 INFO L432 NwaCegarLoop]: 2256 mSDtfsCounter, 1014 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 3378 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 20:37:44,228 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1014 Valid, 3378 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 20:37:44,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556947 states. [2024-10-12 20:37:53,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556947 to 556945. [2024-10-12 20:37:53,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556945 states, 556944 states have (on average 1.5237815651124709) internal successors, (848661), 556944 states have internal predecessors, (848661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)