./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem19_label38.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/eca-rers2012/Problem19_label38.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 cf45ccd02a611bb9297bfb1cd355a12d9c6a10c7fde3ac90ab820bcc5d1ae5fb --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 16:41:12,218 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 16:41:12,264 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 16:41:12,270 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 16:41:12,271 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 16:41:12,290 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 16:41:12,291 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 16:41:12,291 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 16:41:12,291 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 16:41:12,291 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 16:41:12,303 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 16:41:12,303 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 16:41:12,304 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 16:41:12,304 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 16:41:12,304 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 16:41:12,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 16:41:12,305 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 16:41:12,305 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 16:41:12,305 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 16:41:12,305 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 16:41:12,306 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 16:41:12,308 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 16:41:12,308 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 16:41:12,308 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 16:41:12,309 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 16:41:12,311 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 16:41:12,311 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 16:41:12,311 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 16:41:12,312 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 16:41:12,312 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 16:41:12,312 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 16:41:12,312 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 16:41:12,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 16:41:12,312 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 16:41:12,312 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 16:41:12,313 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 16:41:12,313 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 16:41:12,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 16:41:12,313 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 16:41:12,313 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 16:41:12,313 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 16:41:12,314 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 16:41:12,314 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cf45ccd02a611bb9297bfb1cd355a12d9c6a10c7fde3ac90ab820bcc5d1ae5fb [2024-10-12 16:41:12,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 16:41:12,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 16:41:12,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 16:41:12,512 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 16:41:12,513 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 16:41:12,513 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem19_label38.c [2024-10-12 16:41:13,732 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 16:41:14,164 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 16:41:14,166 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem19_label38.c [2024-10-12 16:41:14,200 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cae9985ed/99b513c82ed740279c79b61675b479c6/FLAG997fe795f [2024-10-12 16:41:14,212 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cae9985ed/99b513c82ed740279c79b61675b479c6 [2024-10-12 16:41:14,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 16:41:14,216 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 16:41:14,218 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 16:41:14,218 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 16:41:14,223 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 16:41:14,223 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 04:41:14" (1/1) ... [2024-10-12 16:41:14,225 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e87f9a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:41:14, skipping insertion in model container [2024-10-12 16:41:14,225 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 04:41:14" (1/1) ... [2024-10-12 16:41:14,331 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 16:41:14,562 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem19_label38.c[7658,7671] [2024-10-12 16:41:15,407 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 16:41:15,417 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 16:41:15,437 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem19_label38.c[7658,7671] [2024-10-12 16:41:16,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 16:41:16,047 INFO L204 MainTranslator]: Completed translation [2024-10-12 16:41:16,047 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:41:16 WrapperNode [2024-10-12 16:41:16,048 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 16:41:16,048 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 16:41:16,048 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 16:41:16,049 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 16:41:16,054 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:41:16" (1/1) ... [2024-10-12 16:41:16,124 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:41:16" (1/1) ... [2024-10-12 16:41:16,724 INFO L138 Inliner]: procedures = 19, calls = 13, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 9431 [2024-10-12 16:41:16,725 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 16:41:16,725 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 16:41:16,725 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 16:41:16,725 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 16:41:16,734 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:41:16" (1/1) ... [2024-10-12 16:41:16,734 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:41:16" (1/1) ... [2024-10-12 16:41:16,879 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:41:16" (1/1) ... [2024-10-12 16:41:17,191 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 16:41:17,192 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:41:16" (1/1) ... [2024-10-12 16:41:17,192 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:41:16" (1/1) ... [2024-10-12 16:41:17,429 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:41:16" (1/1) ... [2024-10-12 16:41:17,454 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:41:16" (1/1) ... [2024-10-12 16:41:17,498 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:41:16" (1/1) ... [2024-10-12 16:41:17,522 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:41:16" (1/1) ... [2024-10-12 16:41:17,601 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 16:41:17,602 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 16:41:17,602 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 16:41:17,602 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 16:41:17,603 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:41:16" (1/1) ... [2024-10-12 16:41:17,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 16:41:17,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:41:17,627 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 16:41:17,629 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 16:41:17,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 16:41:17,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 16:41:17,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 16:41:17,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 16:41:17,731 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 16:41:17,732 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 16:41:23,572 INFO L? ?]: Removed 1320 outVars from TransFormulas that were not future-live. [2024-10-12 16:41:23,572 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 16:41:23,638 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 16:41:23,638 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 16:41:23,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 04:41:23 BoogieIcfgContainer [2024-10-12 16:41:23,639 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 16:41:23,640 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 16:41:23,640 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 16:41:23,643 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 16:41:23,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 04:41:14" (1/3) ... [2024-10-12 16:41:23,643 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c1f081e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 04:41:23, skipping insertion in model container [2024-10-12 16:41:23,643 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:41:16" (2/3) ... [2024-10-12 16:41:23,644 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c1f081e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 04:41:23, skipping insertion in model container [2024-10-12 16:41:23,644 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 04:41:23" (3/3) ... [2024-10-12 16:41:23,645 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label38.c [2024-10-12 16:41:23,656 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 16:41:23,657 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 16:41:23,738 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 16:41:23,748 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;@615242e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 16:41:23,749 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 16:41:23,757 INFO L276 IsEmpty]: Start isEmpty. Operand has 1686 states, 1684 states have (on average 1.902019002375297) internal successors, (3203), 1685 states have internal predecessors, (3203), 0 states have call successors, (0), 0 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 16:41:23,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-12 16:41:23,762 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:41:23,763 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] [2024-10-12 16:41:23,763 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:41:23,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:41:23,770 INFO L85 PathProgramCache]: Analyzing trace with hash 1103706578, now seen corresponding path program 1 times [2024-10-12 16:41:23,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:41:23,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051798544] [2024-10-12 16:41:23,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:41:23,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:41:23,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:41:24,027 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 16:41:24,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:41:24,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051798544] [2024-10-12 16:41:24,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051798544] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:41:24,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:41:24,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 16:41:24,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892456692] [2024-10-12 16:41:24,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:41:24,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 16:41:24,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:41:24,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 16:41:24,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 16:41:24,061 INFO L87 Difference]: Start difference. First operand has 1686 states, 1684 states have (on average 1.902019002375297) internal successors, (3203), 1685 states have internal predecessors, (3203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 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 16:41:24,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:41:24,157 INFO L93 Difference]: Finished difference Result 3371 states and 6405 transitions. [2024-10-12 16:41:24,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 16:41:24,164 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-10-12 16:41:24,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:41:24,188 INFO L225 Difference]: With dead ends: 3371 [2024-10-12 16:41:24,188 INFO L226 Difference]: Without dead ends: 1684 [2024-10-12 16:41:24,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 16:41:24,202 INFO L432 NwaCegarLoop]: 3138 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3138 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 16:41:24,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3138 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 16:41:24,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1684 states. [2024-10-12 16:41:24,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1684 to 1684. [2024-10-12 16:41:24,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1684 states, 1683 states have (on average 1.8645276292335116) internal successors, (3138), 1683 states have internal predecessors, (3138), 0 states have call successors, (0), 0 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 16:41:24,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 3138 transitions. [2024-10-12 16:41:24,305 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 3138 transitions. Word has length 58 [2024-10-12 16:41:24,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:41:24,306 INFO L471 AbstractCegarLoop]: Abstraction has 1684 states and 3138 transitions. [2024-10-12 16:41:24,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 0 states have call successors, (0), 0 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 16:41:24,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 3138 transitions. [2024-10-12 16:41:24,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-10-12 16:41:24,308 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:41:24,308 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] [2024-10-12 16:41:24,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 16:41:24,309 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:41:24,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:41:24,309 INFO L85 PathProgramCache]: Analyzing trace with hash -370726792, now seen corresponding path program 1 times [2024-10-12 16:41:24,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:41:24,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25591332] [2024-10-12 16:41:24,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:41:24,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:41:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:41:24,639 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 16:41:24,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:41:24,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25591332] [2024-10-12 16:41:24,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25591332] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:41:24,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:41:24,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:41:24,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920641484] [2024-10-12 16:41:24,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:41:24,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 16:41:24,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:41:24,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 16:41:24,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 16:41:24,645 INFO L87 Difference]: Start difference. First operand 1684 states and 3138 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 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 16:41:33,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:41:33,104 INFO L93 Difference]: Finished difference Result 6153 states and 11660 transitions. [2024-10-12 16:41:33,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 16:41:33,105 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-10-12 16:41:33,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:41:33,118 INFO L225 Difference]: With dead ends: 6153 [2024-10-12 16:41:33,118 INFO L226 Difference]: Without dead ends: 4470 [2024-10-12 16:41:33,121 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 16:41:33,122 INFO L432 NwaCegarLoop]: 707 mSDtfsCounter, 4511 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 7005 mSolverCounterSat, 3531 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4511 SdHoareTripleChecker+Valid, 981 SdHoareTripleChecker+Invalid, 10536 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3531 IncrementalHoareTripleChecker+Valid, 7005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-10-12 16:41:33,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4511 Valid, 981 Invalid, 10536 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3531 Valid, 7005 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2024-10-12 16:41:33,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4470 states. [2024-10-12 16:41:33,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4470 to 4466. [2024-10-12 16:41:33,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4466 states, 4465 states have (on average 1.5666293393057111) internal successors, (6995), 4465 states have internal predecessors, (6995), 0 states have call successors, (0), 0 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 16:41:33,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4466 states to 4466 states and 6995 transitions. [2024-10-12 16:41:33,203 INFO L78 Accepts]: Start accepts. Automaton has 4466 states and 6995 transitions. Word has length 58 [2024-10-12 16:41:33,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:41:33,203 INFO L471 AbstractCegarLoop]: Abstraction has 4466 states and 6995 transitions. [2024-10-12 16:41:33,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 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 16:41:33,203 INFO L276 IsEmpty]: Start isEmpty. Operand 4466 states and 6995 transitions. [2024-10-12 16:41:33,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2024-10-12 16:41:33,212 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:41:33,213 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:41:33,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 16:41:33,213 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:41:33,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:41:33,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1635123215, now seen corresponding path program 1 times [2024-10-12 16:41:33,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:41:33,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114062065] [2024-10-12 16:41:33,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:41:33,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:41:33,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:41:34,022 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-10-12 16:41:34,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:41:34,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114062065] [2024-10-12 16:41:34,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114062065] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:41:34,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:41:34,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:41:34,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398154108] [2024-10-12 16:41:34,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:41:34,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 16:41:34,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:41:34,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 16:41:34,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 16:41:34,028 INFO L87 Difference]: Start difference. First operand 4466 states and 6995 transitions. Second operand has 4 states, 4 states have (on average 69.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 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 16:41:41,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:41:41,794 INFO L93 Difference]: Finished difference Result 11709 states and 20220 transitions. [2024-10-12 16:41:41,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 16:41:41,795 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 69.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 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 332 [2024-10-12 16:41:41,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:41:41,819 INFO L225 Difference]: With dead ends: 11709 [2024-10-12 16:41:41,819 INFO L226 Difference]: Without dead ends: 8609 [2024-10-12 16:41:41,824 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 16:41:41,827 INFO L432 NwaCegarLoop]: 1799 mSDtfsCounter, 3755 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 9446 mSolverCounterSat, 1331 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3755 SdHoareTripleChecker+Valid, 2153 SdHoareTripleChecker+Invalid, 10777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1331 IncrementalHoareTripleChecker+Valid, 9446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-10-12 16:41:41,829 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3755 Valid, 2153 Invalid, 10777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1331 Valid, 9446 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2024-10-12 16:41:41,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8609 states. [2024-10-12 16:41:41,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8609 to 8595. [2024-10-12 16:41:41,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8595 states, 8594 states have (on average 1.348498952757738) internal successors, (11589), 8594 states have internal predecessors, (11589), 0 states have call successors, (0), 0 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 16:41:41,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8595 states to 8595 states and 11589 transitions. [2024-10-12 16:41:41,934 INFO L78 Accepts]: Start accepts. Automaton has 8595 states and 11589 transitions. Word has length 332 [2024-10-12 16:41:41,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:41:41,935 INFO L471 AbstractCegarLoop]: Abstraction has 8595 states and 11589 transitions. [2024-10-12 16:41:41,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 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 16:41:41,936 INFO L276 IsEmpty]: Start isEmpty. Operand 8595 states and 11589 transitions. [2024-10-12 16:41:41,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2024-10-12 16:41:41,940 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:41:41,940 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:41:41,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 16:41:41,940 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:41:41,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:41:41,941 INFO L85 PathProgramCache]: Analyzing trace with hash -6158773, now seen corresponding path program 1 times [2024-10-12 16:41:41,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:41:41,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337785081] [2024-10-12 16:41:41,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:41:41,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:41:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:41:42,498 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 146 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-10-12 16:41:42,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:41:42,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337785081] [2024-10-12 16:41:42,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337785081] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:41:42,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:41:42,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:41:42,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611685101] [2024-10-12 16:41:42,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:41:42,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 16:41:42,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:41:42,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 16:41:42,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 16:41:42,502 INFO L87 Difference]: Start difference. First operand 8595 states and 11589 transitions. Second operand has 4 states, 4 states have (on average 82.5) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 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 16:41:46,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:41:46,721 INFO L93 Difference]: Finished difference Result 14490 states and 20460 transitions. [2024-10-12 16:41:46,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 16:41:46,722 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 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 360 [2024-10-12 16:41:46,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:41:46,750 INFO L225 Difference]: With dead ends: 14490 [2024-10-12 16:41:46,750 INFO L226 Difference]: Without dead ends: 8595 [2024-10-12 16:41:46,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 16:41:46,759 INFO L432 NwaCegarLoop]: 1771 mSDtfsCounter, 1151 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 5714 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1151 SdHoareTripleChecker+Valid, 1949 SdHoareTripleChecker+Invalid, 5722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 5714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-10-12 16:41:46,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1151 Valid, 1949 Invalid, 5722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 5714 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-10-12 16:41:46,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8595 states. [2024-10-12 16:41:46,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8595 to 8595. [2024-10-12 16:41:46,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8595 states, 8594 states have (on average 1.346986269490342) internal successors, (11576), 8594 states have internal predecessors, (11576), 0 states have call successors, (0), 0 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 16:41:46,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8595 states to 8595 states and 11576 transitions. [2024-10-12 16:41:46,870 INFO L78 Accepts]: Start accepts. Automaton has 8595 states and 11576 transitions. Word has length 360 [2024-10-12 16:41:46,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:41:46,872 INFO L471 AbstractCegarLoop]: Abstraction has 8595 states and 11576 transitions. [2024-10-12 16:41:46,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.5) internal successors, (330), 3 states have internal predecessors, (330), 0 states have call successors, (0), 0 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 16:41:46,872 INFO L276 IsEmpty]: Start isEmpty. Operand 8595 states and 11576 transitions. [2024-10-12 16:41:46,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2024-10-12 16:41:46,879 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:41:46,879 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:41:46,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 16:41:46,880 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:41:46,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:41:46,880 INFO L85 PathProgramCache]: Analyzing trace with hash 717621252, now seen corresponding path program 1 times [2024-10-12 16:41:46,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:41:46,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55104910] [2024-10-12 16:41:46,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:41:46,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:41:46,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:41:47,549 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 135 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 16:41:47,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:41:47,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55104910] [2024-10-12 16:41:47,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55104910] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:41:47,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761450562] [2024-10-12 16:41:47,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:41:47,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:41:47,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:41:47,554 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 16:41:47,556 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 16:41:47,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:41:47,726 INFO L255 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 16:41:47,741 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:41:47,865 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 16:41:47,865 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:41:47,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761450562] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:41:47,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:41:47,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-12 16:41:47,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898531838] [2024-10-12 16:41:47,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:41:47,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:41:47,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:41:47,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:41:47,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-12 16:41:47,868 INFO L87 Difference]: Start difference. First operand 8595 states and 11576 transitions. Second operand has 3 states, 3 states have (on average 204.0) internal successors, (612), 3 states have internal predecessors, (612), 0 states have call successors, (0), 0 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 16:41:52,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:41:52,804 INFO L93 Difference]: Finished difference Result 19934 states and 28707 transitions. [2024-10-12 16:41:52,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:41:52,805 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 204.0) internal successors, (612), 3 states have internal predecessors, (612), 0 states have call successors, (0), 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 612 [2024-10-12 16:41:52,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:41:52,832 INFO L225 Difference]: With dead ends: 19934 [2024-10-12 16:41:52,832 INFO L226 Difference]: Without dead ends: 14070 [2024-10-12 16:41:52,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 611 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-12 16:41:52,842 INFO L432 NwaCegarLoop]: 1369 mSDtfsCounter, 1729 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 3865 mSolverCounterSat, 1728 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1729 SdHoareTripleChecker+Valid, 1506 SdHoareTripleChecker+Invalid, 5593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1728 IncrementalHoareTripleChecker+Valid, 3865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-10-12 16:41:52,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1729 Valid, 1506 Invalid, 5593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1728 Valid, 3865 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-10-12 16:41:52,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14070 states. [2024-10-12 16:41:53,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14070 to 14070. [2024-10-12 16:41:53,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14070 states, 14069 states have (on average 1.2694576728978606) internal successors, (17860), 14069 states have internal predecessors, (17860), 0 states have call successors, (0), 0 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 16:41:53,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14070 states to 14070 states and 17860 transitions. [2024-10-12 16:41:53,034 INFO L78 Accepts]: Start accepts. Automaton has 14070 states and 17860 transitions. Word has length 612 [2024-10-12 16:41:53,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:41:53,035 INFO L471 AbstractCegarLoop]: Abstraction has 14070 states and 17860 transitions. [2024-10-12 16:41:53,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 204.0) internal successors, (612), 3 states have internal predecessors, (612), 0 states have call successors, (0), 0 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 16:41:53,036 INFO L276 IsEmpty]: Start isEmpty. Operand 14070 states and 17860 transitions. [2024-10-12 16:41:53,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 614 [2024-10-12 16:41:53,043 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:41:53,044 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:41:53,058 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-12 16:41:53,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:41:53,249 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:41:53,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:41:53,249 INFO L85 PathProgramCache]: Analyzing trace with hash 350069980, now seen corresponding path program 1 times [2024-10-12 16:41:53,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:41:53,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36512830] [2024-10-12 16:41:53,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:41:53,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:41:53,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:41:53,570 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2024-10-12 16:41:53,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:41:53,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36512830] [2024-10-12 16:41:53,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36512830] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:41:53,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:41:53,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 16:41:53,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781973354] [2024-10-12 16:41:53,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:41:53,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:41:53,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:41:53,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:41:53,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:41:53,572 INFO L87 Difference]: Start difference. First operand 14070 states and 17860 transitions. Second operand has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 2 states have internal predecessors, (547), 0 states have call successors, (0), 0 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 16:41:58,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:41:58,347 INFO L93 Difference]: Finished difference Result 36503 states and 47793 transitions. [2024-10-12 16:41:58,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:41:58,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 2 states have internal predecessors, (547), 0 states have call successors, (0), 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 613 [2024-10-12 16:41:58,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:41:58,384 INFO L225 Difference]: With dead ends: 36503 [2024-10-12 16:41:58,385 INFO L226 Difference]: Without dead ends: 25164 [2024-10-12 16:41:58,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:41:58,399 INFO L432 NwaCegarLoop]: 693 mSDtfsCounter, 2110 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 5096 mSolverCounterSat, 434 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2110 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 5530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 434 IncrementalHoareTripleChecker+Valid, 5096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-10-12 16:41:58,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2110 Valid, 962 Invalid, 5530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [434 Valid, 5096 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-10-12 16:41:58,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25164 states. [2024-10-12 16:41:58,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25164 to 23796. [2024-10-12 16:41:58,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23796 states, 23795 states have (on average 1.267451145198571) internal successors, (30159), 23795 states have internal predecessors, (30159), 0 states have call successors, (0), 0 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 16:41:58,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23796 states to 23796 states and 30159 transitions. [2024-10-12 16:41:58,708 INFO L78 Accepts]: Start accepts. Automaton has 23796 states and 30159 transitions. Word has length 613 [2024-10-12 16:41:58,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:41:58,709 INFO L471 AbstractCegarLoop]: Abstraction has 23796 states and 30159 transitions. [2024-10-12 16:41:58,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 2 states have internal predecessors, (547), 0 states have call successors, (0), 0 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 16:41:58,709 INFO L276 IsEmpty]: Start isEmpty. Operand 23796 states and 30159 transitions. [2024-10-12 16:41:58,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 631 [2024-10-12 16:41:58,712 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:41:58,713 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:41:58,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 16:41:58,713 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:41:58,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:41:58,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1169814320, now seen corresponding path program 1 times [2024-10-12 16:41:58,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:41:58,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553565722] [2024-10-12 16:41:58,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:41:58,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:41:58,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:41:59,065 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-10-12 16:41:59,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:41:59,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553565722] [2024-10-12 16:41:59,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553565722] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:41:59,067 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:41:59,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 16:41:59,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105111642] [2024-10-12 16:41:59,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:41:59,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:41:59,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:41:59,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:41:59,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:41:59,069 INFO L87 Difference]: Start difference. First operand 23796 states and 30159 transitions. Second operand has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 2 states have internal predecessors, (547), 0 states have call successors, (0), 0 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 16:42:03,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:42:03,350 INFO L93 Difference]: Finished difference Result 50346 states and 65461 transitions. [2024-10-12 16:42:03,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:42:03,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 2 states have internal predecessors, (547), 0 states have call successors, (0), 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 630 [2024-10-12 16:42:03,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:42:03,386 INFO L225 Difference]: With dead ends: 50346 [2024-10-12 16:42:03,386 INFO L226 Difference]: Without dead ends: 29281 [2024-10-12 16:42:03,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:42:03,407 INFO L432 NwaCegarLoop]: 674 mSDtfsCounter, 1377 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 3922 mSolverCounterSat, 2125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1377 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 6047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2125 IncrementalHoareTripleChecker+Valid, 3922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-10-12 16:42:03,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1377 Valid, 721 Invalid, 6047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2125 Valid, 3922 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-10-12 16:42:03,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29281 states. [2024-10-12 16:42:03,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29281 to 29266. [2024-10-12 16:42:03,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29266 states, 29265 states have (on average 1.2553220570647532) internal successors, (36737), 29265 states have internal predecessors, (36737), 0 states have call successors, (0), 0 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 16:42:03,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29266 states to 29266 states and 36737 transitions. [2024-10-12 16:42:03,684 INFO L78 Accepts]: Start accepts. Automaton has 29266 states and 36737 transitions. Word has length 630 [2024-10-12 16:42:03,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:42:03,684 INFO L471 AbstractCegarLoop]: Abstraction has 29266 states and 36737 transitions. [2024-10-12 16:42:03,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.33333333333334) internal successors, (547), 2 states have internal predecessors, (547), 0 states have call successors, (0), 0 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 16:42:03,685 INFO L276 IsEmpty]: Start isEmpty. Operand 29266 states and 36737 transitions. [2024-10-12 16:42:03,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 843 [2024-10-12 16:42:03,690 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:42:03,691 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:42:03,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 16:42:03,692 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:42:03,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:42:03,692 INFO L85 PathProgramCache]: Analyzing trace with hash -942294647, now seen corresponding path program 1 times [2024-10-12 16:42:03,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:42:03,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052278753] [2024-10-12 16:42:03,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:42:03,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:42:03,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:42:04,291 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 339 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2024-10-12 16:42:04,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:42:04,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052278753] [2024-10-12 16:42:04,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052278753] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:42:04,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:42:04,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 16:42:04,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74494797] [2024-10-12 16:42:04,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:42:04,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 16:42:04,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:42:04,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 16:42:04,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 16:42:04,294 INFO L87 Difference]: Start difference. First operand 29266 states and 36737 transitions. Second operand has 4 states, 4 states have (on average 158.5) internal successors, (634), 4 states have internal predecessors, (634), 0 states have call successors, (0), 0 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 16:42:12,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:42:12,141 INFO L93 Difference]: Finished difference Result 98281 states and 126942 transitions. [2024-10-12 16:42:12,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 16:42:12,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 158.5) internal successors, (634), 4 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 842 [2024-10-12 16:42:12,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:42:12,227 INFO L225 Difference]: With dead ends: 98281 [2024-10-12 16:42:12,227 INFO L226 Difference]: Without dead ends: 71746 [2024-10-12 16:42:12,263 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 16:42:12,264 INFO L432 NwaCegarLoop]: 821 mSDtfsCounter, 3271 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 8836 mSolverCounterSat, 2954 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3271 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 11790 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2954 IncrementalHoareTripleChecker+Valid, 8836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2024-10-12 16:42:12,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3271 Valid, 1140 Invalid, 11790 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2954 Valid, 8836 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2024-10-12 16:42:12,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71746 states. [2024-10-12 16:42:12,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71746 to 68932. [2024-10-12 16:42:12,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68932 states, 68931 states have (on average 1.2231216723970346) internal successors, (84311), 68931 states have internal predecessors, (84311), 0 states have call successors, (0), 0 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 16:42:13,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68932 states to 68932 states and 84311 transitions. [2024-10-12 16:42:13,010 INFO L78 Accepts]: Start accepts. Automaton has 68932 states and 84311 transitions. Word has length 842 [2024-10-12 16:42:13,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:42:13,010 INFO L471 AbstractCegarLoop]: Abstraction has 68932 states and 84311 transitions. [2024-10-12 16:42:13,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 158.5) internal successors, (634), 4 states have internal predecessors, (634), 0 states have call successors, (0), 0 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 16:42:13,011 INFO L276 IsEmpty]: Start isEmpty. Operand 68932 states and 84311 transitions. [2024-10-12 16:42:13,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 919 [2024-10-12 16:42:13,018 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:42:13,018 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:42:13,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 16:42:13,019 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:42:13,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:42:13,019 INFO L85 PathProgramCache]: Analyzing trace with hash -940392885, now seen corresponding path program 1 times [2024-10-12 16:42:13,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:42:13,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642129756] [2024-10-12 16:42:13,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:42:13,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:42:13,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:42:13,356 INFO L134 CoverageAnalysis]: Checked inductivity of 817 backedges. 227 proven. 0 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2024-10-12 16:42:13,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:42:13,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642129756] [2024-10-12 16:42:13,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642129756] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:42:13,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:42:13,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:42:13,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876681332] [2024-10-12 16:42:13,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:42:13,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:42:13,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:42:13,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:42:13,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:42:13,358 INFO L87 Difference]: Start difference. First operand 68932 states and 84311 transitions. Second operand has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 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 16:42:18,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:42:18,508 INFO L93 Difference]: Finished difference Result 199388 states and 245299 transitions. [2024-10-12 16:42:18,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:42:18,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 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 918 [2024-10-12 16:42:18,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:42:18,672 INFO L225 Difference]: With dead ends: 199388 [2024-10-12 16:42:18,673 INFO L226 Difference]: Without dead ends: 133187 [2024-10-12 16:42:18,741 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 16:42:18,742 INFO L432 NwaCegarLoop]: 498 mSDtfsCounter, 1690 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 4224 mSolverCounterSat, 2345 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1690 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 6569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2345 IncrementalHoareTripleChecker+Valid, 4224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-10-12 16:42:18,742 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1690 Valid, 552 Invalid, 6569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2345 Valid, 4224 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-10-12 16:42:18,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133187 states. [2024-10-12 16:42:20,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133187 to 124899. [2024-10-12 16:42:20,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124899 states, 124898 states have (on average 1.2358564588704384) internal successors, (154356), 124898 states have internal predecessors, (154356), 0 states have call successors, (0), 0 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 16:42:20,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124899 states to 124899 states and 154356 transitions. [2024-10-12 16:42:20,544 INFO L78 Accepts]: Start accepts. Automaton has 124899 states and 154356 transitions. Word has length 918 [2024-10-12 16:42:20,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:42:20,544 INFO L471 AbstractCegarLoop]: Abstraction has 124899 states and 154356 transitions. [2024-10-12 16:42:20,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 184.33333333333334) internal successors, (553), 3 states have internal predecessors, (553), 0 states have call successors, (0), 0 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 16:42:20,544 INFO L276 IsEmpty]: Start isEmpty. Operand 124899 states and 154356 transitions. [2024-10-12 16:42:20,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1131 [2024-10-12 16:42:20,811 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:42:20,811 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:42:20,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 16:42:20,812 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:42:20,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:42:20,812 INFO L85 PathProgramCache]: Analyzing trace with hash 593725698, now seen corresponding path program 1 times [2024-10-12 16:42:20,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:42:20,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462950173] [2024-10-12 16:42:20,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:42:20,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:42:21,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:42:21,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1179 backedges. 817 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2024-10-12 16:42:21,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:42:21,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462950173] [2024-10-12 16:42:21,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462950173] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:42:21,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:42:21,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:42:21,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269401497] [2024-10-12 16:42:21,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:42:21,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:42:21,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:42:21,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:42:21,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:42:21,689 INFO L87 Difference]: Start difference. First operand 124899 states and 154356 transitions. Second operand has 3 states, 3 states have (on average 256.6666666666667) internal successors, (770), 3 states have internal predecessors, (770), 0 states have call successors, (0), 0 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 16:42:26,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:42:26,360 INFO L93 Difference]: Finished difference Result 247072 states and 305987 transitions. [2024-10-12 16:42:26,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:42:26,361 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 256.6666666666667) internal successors, (770), 3 states have internal predecessors, (770), 0 states have call successors, (0), 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 1130 [2024-10-12 16:42:26,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:42:26,500 INFO L225 Difference]: With dead ends: 247072 [2024-10-12 16:42:26,500 INFO L226 Difference]: Without dead ends: 124904 [2024-10-12 16:42:26,548 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 16:42:26,548 INFO L432 NwaCegarLoop]: 2856 mSDtfsCounter, 1263 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 4414 mSolverCounterSat, 889 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 3041 SdHoareTripleChecker+Invalid, 5303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 889 IncrementalHoareTripleChecker+Valid, 4414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-10-12 16:42:26,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1263 Valid, 3041 Invalid, 5303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [889 Valid, 4414 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-10-12 16:42:26,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124904 states. [2024-10-12 16:42:27,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124904 to 124894. [2024-10-12 16:42:27,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124894 states, 124893 states have (on average 1.1808267877302971) internal successors, (147477), 124893 states have internal predecessors, (147477), 0 states have call successors, (0), 0 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 16:42:28,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124894 states to 124894 states and 147477 transitions. [2024-10-12 16:42:28,086 INFO L78 Accepts]: Start accepts. Automaton has 124894 states and 147477 transitions. Word has length 1130 [2024-10-12 16:42:28,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:42:28,087 INFO L471 AbstractCegarLoop]: Abstraction has 124894 states and 147477 transitions. [2024-10-12 16:42:28,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 256.6666666666667) internal successors, (770), 3 states have internal predecessors, (770), 0 states have call successors, (0), 0 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 16:42:28,087 INFO L276 IsEmpty]: Start isEmpty. Operand 124894 states and 147477 transitions. [2024-10-12 16:42:28,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1150 [2024-10-12 16:42:28,101 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:42:28,102 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:42:28,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 16:42:28,102 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:42:28,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:42:28,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1828529877, now seen corresponding path program 1 times [2024-10-12 16:42:28,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:42:28,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095826347] [2024-10-12 16:42:28,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:42:28,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:42:28,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:42:29,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1473 backedges. 883 proven. 0 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2024-10-12 16:42:29,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:42:29,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095826347] [2024-10-12 16:42:29,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095826347] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:42:29,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:42:29,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:42:29,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38922520] [2024-10-12 16:42:29,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:42:29,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:42:29,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:42:29,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:42:29,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:42:29,102 INFO L87 Difference]: Start difference. First operand 124894 states and 147477 transitions. Second operand has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 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 16:42:33,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:42:33,683 INFO L93 Difference]: Finished difference Result 253877 states and 299207 transitions. [2024-10-12 16:42:33,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:42:33,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 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 1149 [2024-10-12 16:42:33,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:42:33,827 INFO L225 Difference]: With dead ends: 253877 [2024-10-12 16:42:33,827 INFO L226 Difference]: Without dead ends: 124887 [2024-10-12 16:42:33,874 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 16:42:33,875 INFO L432 NwaCegarLoop]: 2876 mSDtfsCounter, 1245 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 4326 mSolverCounterSat, 954 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1245 SdHoareTripleChecker+Valid, 3051 SdHoareTripleChecker+Invalid, 5280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 954 IncrementalHoareTripleChecker+Valid, 4326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-10-12 16:42:33,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1245 Valid, 3051 Invalid, 5280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [954 Valid, 4326 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-10-12 16:42:33,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124887 states. [2024-10-12 16:42:34,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124887 to 109859. [2024-10-12 16:42:35,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109859 states, 109858 states have (on average 1.1208196034881392) internal successors, (123131), 109858 states have internal predecessors, (123131), 0 states have call successors, (0), 0 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 16:42:35,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109859 states to 109859 states and 123131 transitions. [2024-10-12 16:42:35,185 INFO L78 Accepts]: Start accepts. Automaton has 109859 states and 123131 transitions. Word has length 1149 [2024-10-12 16:42:35,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:42:35,186 INFO L471 AbstractCegarLoop]: Abstraction has 109859 states and 123131 transitions. [2024-10-12 16:42:35,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 261.3333333333333) internal successors, (784), 3 states have internal predecessors, (784), 0 states have call successors, (0), 0 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 16:42:35,186 INFO L276 IsEmpty]: Start isEmpty. Operand 109859 states and 123131 transitions. [2024-10-12 16:42:35,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1202 [2024-10-12 16:42:35,202 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:42:35,202 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:42:35,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 16:42:35,202 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:42:35,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:42:35,203 INFO L85 PathProgramCache]: Analyzing trace with hash -629492887, now seen corresponding path program 1 times [2024-10-12 16:42:35,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:42:35,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324962874] [2024-10-12 16:42:35,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:42:35,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:42:35,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat