./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem12_label04.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem12_label04.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 33de5d7f20015c0808aeb1de8a96a544518a9ee4634466bd76c0c961f4a657cf --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 11:13:13,392 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 11:13:13,444 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 11:13:13,447 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 11:13:13,447 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 11:13:13,468 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 11:13:13,469 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 11:13:13,469 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 11:13:13,469 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 11:13:13,470 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 11:13:13,470 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 11:13:13,470 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 11:13:13,471 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 11:13:13,471 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 11:13:13,471 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 11:13:13,471 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 11:13:13,472 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 11:13:13,472 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 11:13:13,472 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 11:13:13,472 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 11:13:13,472 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 11:13:13,481 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 11:13:13,482 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 11:13:13,482 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 11:13:13,482 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 11:13:13,482 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 11:13:13,482 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 11:13:13,483 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 11:13:13,483 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 11:13:13,483 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 11:13:13,483 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 11:13:13,495 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 11:13:13,495 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 11:13:13,495 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 11:13:13,495 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 11:13:13,495 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 11:13:13,496 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 11:13:13,496 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 11:13:13,496 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 11:13:13,496 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 11:13:13,496 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 11:13:13,497 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 11:13:13,497 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33de5d7f20015c0808aeb1de8a96a544518a9ee4634466bd76c0c961f4a657cf [2024-11-08 11:13:13,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 11:13:13,726 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 11:13:13,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 11:13:13,729 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 11:13:13,729 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 11:13:13,730 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem12_label04.c [2024-11-08 11:13:14,900 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 11:13:15,221 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 11:13:15,223 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label04.c [2024-11-08 11:13:15,247 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2f6c0637/77475cad101d466ba763dd9062c0f98d/FLAG9634b3bbc [2024-11-08 11:13:15,260 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2f6c0637/77475cad101d466ba763dd9062c0f98d [2024-11-08 11:13:15,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 11:13:15,264 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 11:13:15,266 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 11:13:15,266 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 11:13:15,270 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 11:13:15,270 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:13:15" (1/1) ... [2024-11-08 11:13:15,271 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35e10c55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:13:15, skipping insertion in model container [2024-11-08 11:13:15,272 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:13:15" (1/1) ... [2024-11-08 11:13:15,352 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 11:13:15,537 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label04.c[7422,7435] [2024-11-08 11:13:16,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 11:13:16,014 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 11:13:16,034 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label04.c[7422,7435] [2024-11-08 11:13:16,305 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 11:13:16,326 INFO L204 MainTranslator]: Completed translation [2024-11-08 11:13:16,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:13:16 WrapperNode [2024-11-08 11:13:16,327 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 11:13:16,328 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 11:13:16,328 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 11:13:16,328 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 11:13:16,334 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:13:16" (1/1) ... [2024-11-08 11:13:16,366 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:13:16" (1/1) ... [2024-11-08 11:13:16,619 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4761 [2024-11-08 11:13:16,619 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 11:13:16,620 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 11:13:16,620 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 11:13:16,620 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 11:13:16,628 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:13:16" (1/1) ... [2024-11-08 11:13:16,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:13:16" (1/1) ... [2024-11-08 11:13:16,658 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:13:16" (1/1) ... [2024-11-08 11:13:16,808 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 11:13:16,809 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:13:16" (1/1) ... [2024-11-08 11:13:16,809 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:13:16" (1/1) ... [2024-11-08 11:13:16,927 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:13:16" (1/1) ... [2024-11-08 11:13:16,950 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:13:16" (1/1) ... [2024-11-08 11:13:16,970 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:13:16" (1/1) ... [2024-11-08 11:13:16,986 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:13:16" (1/1) ... [2024-11-08 11:13:17,026 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 11:13:17,028 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 11:13:17,028 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 11:13:17,028 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 11:13:17,029 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:13:16" (1/1) ... [2024-11-08 11:13:17,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 11:13:17,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:13:17,054 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 11:13:17,056 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 11:13:17,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 11:13:17,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 11:13:17,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 11:13:17,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 11:13:17,200 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 11:13:17,201 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 11:13:20,543 INFO L? ?]: Removed 702 outVars from TransFormulas that were not future-live. [2024-11-08 11:13:20,543 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 11:13:20,569 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 11:13:20,569 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 11:13:20,570 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:13:20 BoogieIcfgContainer [2024-11-08 11:13:20,570 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 11:13:20,574 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 11:13:20,574 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 11:13:20,576 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 11:13:20,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:13:15" (1/3) ... [2024-11-08 11:13:20,577 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@580fb911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:13:20, skipping insertion in model container [2024-11-08 11:13:20,577 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:13:16" (2/3) ... [2024-11-08 11:13:20,578 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@580fb911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:13:20, skipping insertion in model container [2024-11-08 11:13:20,578 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:13:20" (3/3) ... [2024-11-08 11:13:20,578 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label04.c [2024-11-08 11:13:20,591 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 11:13:20,591 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 11:13:20,657 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 11:13:20,662 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;@54d7ff65, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 11:13:20,662 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 11:13:20,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 818 states, 816 states have (on average 1.9178921568627452) internal successors, (1565), 817 states have internal predecessors, (1565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:20,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-08 11:13:20,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:13:20,676 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:13:20,677 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:13:20,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:13:20,683 INFO L85 PathProgramCache]: Analyzing trace with hash -634083006, now seen corresponding path program 1 times [2024-11-08 11:13:20,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:13:20,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99346400] [2024-11-08 11:13:20,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:13:20,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:13:20,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:13:21,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:13:21,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:13:21,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99346400] [2024-11-08 11:13:21,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99346400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:13:21,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:13:21,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:13:21,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834089703] [2024-11-08 11:13:21,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:13:21,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:13:21,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:13:21,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:13:21,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:13:21,136 INFO L87 Difference]: Start difference. First operand has 818 states, 816 states have (on average 1.9178921568627452) internal successors, (1565), 817 states have internal predecessors, (1565), 0 states have call successors, (0), 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 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:25,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:13:25,925 INFO L93 Difference]: Finished difference Result 3143 states and 6131 transitions. [2024-11-08 11:13:25,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:13:25,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-08 11:13:25,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:13:25,949 INFO L225 Difference]: With dead ends: 3143 [2024-11-08 11:13:25,950 INFO L226 Difference]: Without dead ends: 2257 [2024-11-08 11:13:25,955 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 11:13:25,957 INFO L432 NwaCegarLoop]: 755 mSDtfsCounter, 2209 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 5311 mSolverCounterSat, 1364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2209 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 6675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1364 IncrementalHoareTripleChecker+Valid, 5311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:13:25,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2209 Valid, 782 Invalid, 6675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1364 Valid, 5311 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-08 11:13:25,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2257 states. [2024-11-08 11:13:26,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2257 to 2257. [2024-11-08 11:13:26,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2257 states, 2256 states have (on average 1.513741134751773) internal successors, (3415), 2256 states have internal predecessors, (3415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:26,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2257 states to 2257 states and 3415 transitions. [2024-11-08 11:13:26,048 INFO L78 Accepts]: Start accepts. Automaton has 2257 states and 3415 transitions. Word has length 60 [2024-11-08 11:13:26,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:13:26,048 INFO L471 AbstractCegarLoop]: Abstraction has 2257 states and 3415 transitions. [2024-11-08 11:13:26,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:26,048 INFO L276 IsEmpty]: Start isEmpty. Operand 2257 states and 3415 transitions. [2024-11-08 11:13:26,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-08 11:13:26,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:13:26,055 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 11:13:26,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 11:13:26,056 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:13:26,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:13:26,056 INFO L85 PathProgramCache]: Analyzing trace with hash 1490791889, now seen corresponding path program 1 times [2024-11-08 11:13:26,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:13:26,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511923494] [2024-11-08 11:13:26,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:13:26,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:13:26,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:13:26,320 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:13:26,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:13:26,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511923494] [2024-11-08 11:13:26,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511923494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:13:26,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:13:26,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:13:26,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90729666] [2024-11-08 11:13:26,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:13:26,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:13:26,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:13:26,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:13:26,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:13:26,324 INFO L87 Difference]: Start difference. First operand 2257 states and 3415 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:29,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:13:29,548 INFO L93 Difference]: Finished difference Result 6051 states and 9520 transitions. [2024-11-08 11:13:29,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:13:29,549 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2024-11-08 11:13:29,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:13:29,559 INFO L225 Difference]: With dead ends: 6051 [2024-11-08 11:13:29,559 INFO L226 Difference]: Without dead ends: 3759 [2024-11-08 11:13:29,562 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 [2024-11-08 11:13:29,562 INFO L432 NwaCegarLoop]: 693 mSDtfsCounter, 688 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 3804 mSolverCounterSat, 664 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 711 SdHoareTripleChecker+Invalid, 4468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 664 IncrementalHoareTripleChecker+Valid, 3804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-08 11:13:29,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 711 Invalid, 4468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [664 Valid, 3804 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-08 11:13:29,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3759 states. [2024-11-08 11:13:29,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3759 to 3759. [2024-11-08 11:13:29,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3759 states, 3758 states have (on average 1.3304949441192124) internal successors, (5000), 3758 states have internal predecessors, (5000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:29,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3759 states to 3759 states and 5000 transitions. [2024-11-08 11:13:29,608 INFO L78 Accepts]: Start accepts. Automaton has 3759 states and 5000 transitions. Word has length 131 [2024-11-08 11:13:29,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:13:29,608 INFO L471 AbstractCegarLoop]: Abstraction has 3759 states and 5000 transitions. [2024-11-08 11:13:29,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:29,609 INFO L276 IsEmpty]: Start isEmpty. Operand 3759 states and 5000 transitions. [2024-11-08 11:13:29,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-08 11:13:29,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:13:29,614 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, 3, 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] [2024-11-08 11:13:29,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 11:13:29,614 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:13:29,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:13:29,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1998634511, now seen corresponding path program 1 times [2024-11-08 11:13:29,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:13:29,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450981336] [2024-11-08 11:13:29,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:13:29,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:13:29,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:13:30,078 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-08 11:13:30,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:13:30,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450981336] [2024-11-08 11:13:30,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450981336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:13:30,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:13:30,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:13:30,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129903022] [2024-11-08 11:13:30,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:13:30,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:13:30,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:13:30,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:13:30,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:13:30,084 INFO L87 Difference]: Start difference. First operand 3759 states and 5000 transitions. Second operand has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:32,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:13:32,618 INFO L93 Difference]: Finished difference Result 9057 states and 12624 transitions. [2024-11-08 11:13:32,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:13:32,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 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 272 [2024-11-08 11:13:32,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:13:32,631 INFO L225 Difference]: With dead ends: 9057 [2024-11-08 11:13:32,631 INFO L226 Difference]: Without dead ends: 5263 [2024-11-08 11:13:32,636 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 [2024-11-08 11:13:32,638 INFO L432 NwaCegarLoop]: 309 mSDtfsCounter, 850 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 3408 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 850 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 3961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 3408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-08 11:13:32,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [850 Valid, 324 Invalid, 3961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 3408 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-08 11:13:32,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5263 states. [2024-11-08 11:13:32,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5263 to 5261. [2024-11-08 11:13:32,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5261 states, 5260 states have (on average 1.3241444866920151) internal successors, (6965), 5260 states have internal predecessors, (6965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:32,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5261 states to 5261 states and 6965 transitions. [2024-11-08 11:13:32,700 INFO L78 Accepts]: Start accepts. Automaton has 5261 states and 6965 transitions. Word has length 272 [2024-11-08 11:13:32,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:13:32,701 INFO L471 AbstractCegarLoop]: Abstraction has 5261 states and 6965 transitions. [2024-11-08 11:13:32,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.75) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:32,701 INFO L276 IsEmpty]: Start isEmpty. Operand 5261 states and 6965 transitions. [2024-11-08 11:13:32,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-11-08 11:13:32,704 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:13:32,705 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:13:32,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 11:13:32,705 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:13:32,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:13:32,707 INFO L85 PathProgramCache]: Analyzing trace with hash 771825102, now seen corresponding path program 1 times [2024-11-08 11:13:32,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:13:32,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407393965] [2024-11-08 11:13:32,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:13:32,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:13:32,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:13:32,889 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 199 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:13:32,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:13:32,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407393965] [2024-11-08 11:13:32,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407393965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:13:32,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:13:32,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:13:32,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416737133] [2024-11-08 11:13:32,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:13:32,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:13:32,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:13:32,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:13:32,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:13:32,893 INFO L87 Difference]: Start difference. First operand 5261 states and 6965 transitions. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:35,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:13:35,100 INFO L93 Difference]: Finished difference Result 15026 states and 20134 transitions. [2024-11-08 11:13:35,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:13:35,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 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 286 [2024-11-08 11:13:35,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:13:35,125 INFO L225 Difference]: With dead ends: 15026 [2024-11-08 11:13:35,125 INFO L226 Difference]: Without dead ends: 9767 [2024-11-08 11:13:35,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:13:35,135 INFO L432 NwaCegarLoop]: 1253 mSDtfsCounter, 676 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2630 mSolverCounterSat, 388 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 676 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 3018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 388 IncrementalHoareTripleChecker+Valid, 2630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-08 11:13:35,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [676 Valid, 1260 Invalid, 3018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [388 Valid, 2630 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-08 11:13:35,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9767 states. [2024-11-08 11:13:35,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9767 to 9767. [2024-11-08 11:13:35,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9767 states, 9766 states have (on average 1.2976653696498055) internal successors, (12673), 9766 states have internal predecessors, (12673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:35,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9767 states to 9767 states and 12673 transitions. [2024-11-08 11:13:35,264 INFO L78 Accepts]: Start accepts. Automaton has 9767 states and 12673 transitions. Word has length 286 [2024-11-08 11:13:35,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:13:35,265 INFO L471 AbstractCegarLoop]: Abstraction has 9767 states and 12673 transitions. [2024-11-08 11:13:35,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:35,266 INFO L276 IsEmpty]: Start isEmpty. Operand 9767 states and 12673 transitions. [2024-11-08 11:13:35,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-11-08 11:13:35,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:13:35,268 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:13:35,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 11:13:35,269 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:13:35,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:13:35,269 INFO L85 PathProgramCache]: Analyzing trace with hash -1552136296, now seen corresponding path program 1 times [2024-11-08 11:13:35,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:13:35,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175300183] [2024-11-08 11:13:35,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:13:35,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:13:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:13:35,656 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-08 11:13:35,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:13:35,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175300183] [2024-11-08 11:13:35,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175300183] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:13:35,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:13:35,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:13:35,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115492345] [2024-11-08 11:13:35,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:13:35,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:13:35,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:13:35,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:13:35,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:13:35,661 INFO L87 Difference]: Start difference. First operand 9767 states and 12673 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:37,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:13:37,858 INFO L93 Difference]: Finished difference Result 26291 states and 34790 transitions. [2024-11-08 11:13:37,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:13:37,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 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 290 [2024-11-08 11:13:37,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:13:37,886 INFO L225 Difference]: With dead ends: 26291 [2024-11-08 11:13:37,887 INFO L226 Difference]: Without dead ends: 16526 [2024-11-08 11:13:37,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:13:37,893 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 793 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2324 mSolverCounterSat, 653 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 2977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 653 IncrementalHoareTripleChecker+Valid, 2324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-08 11:13:37,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 203 Invalid, 2977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [653 Valid, 2324 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-08 11:13:37,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16526 states. [2024-11-08 11:13:38,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16526 to 14273. [2024-11-08 11:13:38,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14273 states, 14272 states have (on average 1.3457819506726458) internal successors, (19207), 14272 states have internal predecessors, (19207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:38,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14273 states to 14273 states and 19207 transitions. [2024-11-08 11:13:38,060 INFO L78 Accepts]: Start accepts. Automaton has 14273 states and 19207 transitions. Word has length 290 [2024-11-08 11:13:38,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:13:38,061 INFO L471 AbstractCegarLoop]: Abstraction has 14273 states and 19207 transitions. [2024-11-08 11:13:38,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:38,062 INFO L276 IsEmpty]: Start isEmpty. Operand 14273 states and 19207 transitions. [2024-11-08 11:13:38,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2024-11-08 11:13:38,064 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:13:38,064 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:13:38,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 11:13:38,064 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:13:38,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:13:38,065 INFO L85 PathProgramCache]: Analyzing trace with hash -29932102, now seen corresponding path program 1 times [2024-11-08 11:13:38,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:13:38,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674463078] [2024-11-08 11:13:38,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:13:38,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:13:38,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:13:38,194 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-08 11:13:38,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:13:38,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674463078] [2024-11-08 11:13:38,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674463078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:13:38,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:13:38,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:13:38,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141086314] [2024-11-08 11:13:38,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:13:38,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:13:38,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:13:38,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:13:38,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:13:38,197 INFO L87 Difference]: Start difference. First operand 14273 states and 19207 transitions. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 2 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:40,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:13:40,377 INFO L93 Difference]: Finished difference Result 35303 states and 47603 transitions. [2024-11-08 11:13:40,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:13:40,377 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 2 states have internal predecessors, (203), 0 states have call successors, (0), 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 294 [2024-11-08 11:13:40,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:13:40,406 INFO L225 Difference]: With dead ends: 35303 [2024-11-08 11:13:40,407 INFO L226 Difference]: Without dead ends: 21032 [2024-11-08 11:13:40,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:13:40,420 INFO L432 NwaCegarLoop]: 493 mSDtfsCounter, 671 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 756 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 2751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 756 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:13:40,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [671 Valid, 499 Invalid, 2751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [756 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 11:13:40,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21032 states. [2024-11-08 11:13:40,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21032 to 18779. [2024-11-08 11:13:40,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18779 states, 18778 states have (on average 1.1999147939077643) internal successors, (22532), 18778 states have internal predecessors, (22532), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:40,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18779 states to 18779 states and 22532 transitions. [2024-11-08 11:13:40,618 INFO L78 Accepts]: Start accepts. Automaton has 18779 states and 22532 transitions. Word has length 294 [2024-11-08 11:13:40,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:13:40,618 INFO L471 AbstractCegarLoop]: Abstraction has 18779 states and 22532 transitions. [2024-11-08 11:13:40,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 2 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:40,619 INFO L276 IsEmpty]: Start isEmpty. Operand 18779 states and 22532 transitions. [2024-11-08 11:13:40,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-08 11:13:40,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:13:40,623 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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:13:40,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 11:13:40,624 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:13:40,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:13:40,624 INFO L85 PathProgramCache]: Analyzing trace with hash -2052195617, now seen corresponding path program 1 times [2024-11-08 11:13:40,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:13:40,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652796917] [2024-11-08 11:13:40,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:13:40,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:13:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:13:40,966 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-08 11:13:40,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:13:40,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652796917] [2024-11-08 11:13:40,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652796917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:13:40,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:13:40,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:13:40,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453372997] [2024-11-08 11:13:40,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:13:40,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:13:40,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:13:40,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:13:40,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:13:40,968 INFO L87 Difference]: Start difference. First operand 18779 states and 22532 transitions. Second operand has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:43,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:13:43,115 INFO L93 Difference]: Finished difference Result 45817 states and 55905 transitions. [2024-11-08 11:13:43,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:13:43,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 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 373 [2024-11-08 11:13:43,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:13:43,143 INFO L225 Difference]: With dead ends: 45817 [2024-11-08 11:13:43,143 INFO L226 Difference]: Without dead ends: 27040 [2024-11-08 11:13:43,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:13:43,163 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 780 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2166 mSolverCounterSat, 840 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 3006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 840 IncrementalHoareTripleChecker+Valid, 2166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:13:43,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 105 Invalid, 3006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [840 Valid, 2166 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 11:13:43,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27040 states. [2024-11-08 11:13:43,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27040 to 27040. [2024-11-08 11:13:43,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27040 states, 27039 states have (on average 1.2134324494249047) internal successors, (32810), 27039 states have internal predecessors, (32810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:43,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27040 states to 27040 states and 32810 transitions. [2024-11-08 11:13:43,388 INFO L78 Accepts]: Start accepts. Automaton has 27040 states and 32810 transitions. Word has length 373 [2024-11-08 11:13:43,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:13:43,388 INFO L471 AbstractCegarLoop]: Abstraction has 27040 states and 32810 transitions. [2024-11-08 11:13:43,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 98.66666666666667) internal successors, (296), 3 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:43,389 INFO L276 IsEmpty]: Start isEmpty. Operand 27040 states and 32810 transitions. [2024-11-08 11:13:43,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 388 [2024-11-08 11:13:43,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:13:43,393 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, 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, 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] [2024-11-08 11:13:43,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 11:13:43,394 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:13:43,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:13:43,394 INFO L85 PathProgramCache]: Analyzing trace with hash -2079442438, now seen corresponding path program 1 times [2024-11-08 11:13:43,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:13:43,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942018652] [2024-11-08 11:13:43,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:13:43,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:13:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:13:43,668 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 354 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-08 11:13:43,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:13:43,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942018652] [2024-11-08 11:13:43,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942018652] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:13:43,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:13:43,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:13:43,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782282948] [2024-11-08 11:13:43,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:13:43,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:13:43,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:13:43,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:13:43,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:13:43,671 INFO L87 Difference]: Start difference. First operand 27040 states and 32810 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:45,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:13:45,886 INFO L93 Difference]: Finished difference Result 74355 states and 91281 transitions. [2024-11-08 11:13:45,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:13:45,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 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 387 [2024-11-08 11:13:45,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:13:45,932 INFO L225 Difference]: With dead ends: 74355 [2024-11-08 11:13:45,933 INFO L226 Difference]: Without dead ends: 47317 [2024-11-08 11:13:45,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:13:45,957 INFO L432 NwaCegarLoop]: 416 mSDtfsCounter, 691 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2220 mSolverCounterSat, 668 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 2888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 668 IncrementalHoareTripleChecker+Valid, 2220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:13:45,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 422 Invalid, 2888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [668 Valid, 2220 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 11:13:45,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47317 states. [2024-11-08 11:13:46,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47317 to 47317. [2024-11-08 11:13:46,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47317 states, 47316 states have (on average 1.1889846986220307) internal successors, (56258), 47316 states have internal predecessors, (56258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:46,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47317 states to 47317 states and 56258 transitions. [2024-11-08 11:13:46,402 INFO L78 Accepts]: Start accepts. Automaton has 47317 states and 56258 transitions. Word has length 387 [2024-11-08 11:13:46,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:13:46,403 INFO L471 AbstractCegarLoop]: Abstraction has 47317 states and 56258 transitions. [2024-11-08 11:13:46,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 3 states have internal predecessors, (304), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:46,403 INFO L276 IsEmpty]: Start isEmpty. Operand 47317 states and 56258 transitions. [2024-11-08 11:13:46,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-08 11:13:46,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:13:46,410 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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:13:46,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 11:13:46,411 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:13:46,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:13:46,411 INFO L85 PathProgramCache]: Analyzing trace with hash 2116695981, now seen corresponding path program 1 times [2024-11-08 11:13:46,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:13:46,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687119677] [2024-11-08 11:13:46,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:13:46,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:13:46,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:13:46,648 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-08 11:13:46,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:13:46,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687119677] [2024-11-08 11:13:46,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687119677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:13:46,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:13:46,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:13:46,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518007981] [2024-11-08 11:13:46,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:13:46,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:13:46,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:13:46,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:13:46,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:13:46,650 INFO L87 Difference]: Start difference. First operand 47317 states and 56258 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:49,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:13:49,042 INFO L93 Difference]: Finished difference Result 117162 states and 140257 transitions. [2024-11-08 11:13:49,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:13:49,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 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 393 [2024-11-08 11:13:49,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:13:49,108 INFO L225 Difference]: With dead ends: 117162 [2024-11-08 11:13:49,108 INFO L226 Difference]: Without dead ends: 69847 [2024-11-08 11:13:49,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:13:49,141 INFO L432 NwaCegarLoop]: 336 mSDtfsCounter, 662 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2472 mSolverCounterSat, 452 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 662 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 2924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 452 IncrementalHoareTripleChecker+Valid, 2472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-08 11:13:49,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [662 Valid, 343 Invalid, 2924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [452 Valid, 2472 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-08 11:13:49,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69847 states. [2024-11-08 11:13:49,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69847 to 67594. [2024-11-08 11:13:49,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67594 states, 67593 states have (on average 1.1862914798869706) internal successors, (80185), 67593 states have internal predecessors, (80185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:49,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67594 states to 67594 states and 80185 transitions. [2024-11-08 11:13:49,973 INFO L78 Accepts]: Start accepts. Automaton has 67594 states and 80185 transitions. Word has length 393 [2024-11-08 11:13:49,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:13:49,974 INFO L471 AbstractCegarLoop]: Abstraction has 67594 states and 80185 transitions. [2024-11-08 11:13:49,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:49,974 INFO L276 IsEmpty]: Start isEmpty. Operand 67594 states and 80185 transitions. [2024-11-08 11:13:49,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2024-11-08 11:13:49,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:13:49,981 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, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 11:13:49,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 11:13:49,981 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:13:49,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:13:49,982 INFO L85 PathProgramCache]: Analyzing trace with hash -470222774, now seen corresponding path program 1 times [2024-11-08 11:13:49,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:13:49,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831727068] [2024-11-08 11:13:49,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:13:49,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:13:50,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:13:50,304 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2024-11-08 11:13:50,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:13:50,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831727068] [2024-11-08 11:13:50,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831727068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:13:50,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:13:50,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:13:50,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593527694] [2024-11-08 11:13:50,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:13:50,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:13:50,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:13:50,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:13:50,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:13:50,309 INFO L87 Difference]: Start difference. First operand 67594 states and 80185 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:52,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:13:52,901 INFO L93 Difference]: Finished difference Result 135186 states and 160368 transitions. [2024-11-08 11:13:52,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:13:52,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 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 419 [2024-11-08 11:13:52,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:13:52,976 INFO L225 Difference]: With dead ends: 135186 [2024-11-08 11:13:52,976 INFO L226 Difference]: Without dead ends: 67594 [2024-11-08 11:13:52,988 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:13:52,989 INFO L432 NwaCegarLoop]: 1167 mSDtfsCounter, 724 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2398 mSolverCounterSat, 519 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 724 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 2917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 519 IncrementalHoareTripleChecker+Valid, 2398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-08 11:13:52,989 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [724 Valid, 1175 Invalid, 2917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [519 Valid, 2398 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-08 11:13:53,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67594 states. [2024-11-08 11:13:53,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67594 to 66092. [2024-11-08 11:13:53,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66092 states, 66091 states have (on average 1.1638195820913588) internal successors, (76918), 66091 states have internal predecessors, (76918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:53,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66092 states to 66092 states and 76918 transitions. [2024-11-08 11:13:53,714 INFO L78 Accepts]: Start accepts. Automaton has 66092 states and 76918 transitions. Word has length 419 [2024-11-08 11:13:53,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:13:53,715 INFO L471 AbstractCegarLoop]: Abstraction has 66092 states and 76918 transitions. [2024-11-08 11:13:53,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:53,715 INFO L276 IsEmpty]: Start isEmpty. Operand 66092 states and 76918 transitions. [2024-11-08 11:13:53,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2024-11-08 11:13:53,729 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:13:53,730 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, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:13:53,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 11:13:53,730 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:13:53,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:13:53,734 INFO L85 PathProgramCache]: Analyzing trace with hash 317084970, now seen corresponding path program 1 times [2024-11-08 11:13:53,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:13:53,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190506290] [2024-11-08 11:13:53,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:13:53,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:13:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:13:53,907 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 231 proven. 0 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2024-11-08 11:13:53,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:13:53,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190506290] [2024-11-08 11:13:53,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190506290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:13:53,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:13:53,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:13:53,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888039722] [2024-11-08 11:13:53,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:13:53,908 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:13:53,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:13:53,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:13:53,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:13:53,909 INFO L87 Difference]: Start difference. First operand 66092 states and 76918 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:56,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:13:56,295 INFO L93 Difference]: Finished difference Result 149455 states and 174411 transitions. [2024-11-08 11:13:56,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:13:56,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 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 472 [2024-11-08 11:13:56,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:13:56,374 INFO L225 Difference]: With dead ends: 149455 [2024-11-08 11:13:56,375 INFO L226 Difference]: Without dead ends: 83365 [2024-11-08 11:13:56,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:13:56,406 INFO L432 NwaCegarLoop]: 1118 mSDtfsCounter, 810 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2181 mSolverCounterSat, 481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 2662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 2181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:13:56,406 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 1126 Invalid, 2662 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 2181 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 11:13:56,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83365 states. [2024-11-08 11:13:57,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83365 to 83365. [2024-11-08 11:13:57,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83365 states, 83364 states have (on average 1.146022263806919) internal successors, (95537), 83364 states have internal predecessors, (95537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:57,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83365 states to 83365 states and 95537 transitions. [2024-11-08 11:13:57,199 INFO L78 Accepts]: Start accepts. Automaton has 83365 states and 95537 transitions. Word has length 472 [2024-11-08 11:13:57,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:13:57,199 INFO L471 AbstractCegarLoop]: Abstraction has 83365 states and 95537 transitions. [2024-11-08 11:13:57,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 3 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:13:57,200 INFO L276 IsEmpty]: Start isEmpty. Operand 83365 states and 95537 transitions. [2024-11-08 11:13:57,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 656 [2024-11-08 11:13:57,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:13:57,218 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, 5, 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, 2, 2, 2, 2, 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] [2024-11-08 11:13:57,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 11:13:57,219 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:13:57,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:13:57,219 INFO L85 PathProgramCache]: Analyzing trace with hash 251515768, now seen corresponding path program 1 times [2024-11-08 11:13:57,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:13:57,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267993861] [2024-11-08 11:13:57,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:13:57,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:13:57,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:13:58,439 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 503 proven. 58 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-11-08 11:13:58,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:13:58,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267993861] [2024-11-08 11:13:58,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267993861] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:13:58,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758360028] [2024-11-08 11:13:58,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:13:58,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:13:58,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:13:58,442 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) [2024-11-08 11:13:58,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 11:13:58,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:13:58,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 810 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 11:13:58,616 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:13:59,184 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 561 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2024-11-08 11:13:59,184 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 11:13:59,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758360028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:13:59,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 11:13:59,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-08 11:13:59,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956717708] [2024-11-08 11:13:59,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:13:59,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:13:59,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:13:59,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:13:59,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:13:59,186 INFO L87 Difference]: Start difference. First operand 83365 states and 95537 transitions. Second operand has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:14:01,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:14:01,171 INFO L93 Difference]: Finished difference Result 170483 states and 194907 transitions. [2024-11-08 11:14:01,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:14:01,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 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 655 [2024-11-08 11:14:01,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:14:01,250 INFO L225 Difference]: With dead ends: 170483 [2024-11-08 11:14:01,250 INFO L226 Difference]: Without dead ends: 83365 [2024-11-08 11:14:01,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 659 GetRequests, 655 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:14:01,293 INFO L432 NwaCegarLoop]: 1337 mSDtfsCounter, 499 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2095 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 1345 SdHoareTripleChecker+Invalid, 2292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 2095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 11:14:01,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [499 Valid, 1345 Invalid, 2292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 2095 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 11:14:01,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83365 states. [2024-11-08 11:14:02,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83365 to 81863. [2024-11-08 11:14:02,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81863 states, 81862 states have (on average 1.1431922015098581) internal successors, (93584), 81862 states have internal predecessors, (93584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:14:02,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81863 states to 81863 states and 93584 transitions. [2024-11-08 11:14:02,137 INFO L78 Accepts]: Start accepts. Automaton has 81863 states and 93584 transitions. Word has length 655 [2024-11-08 11:14:02,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:14:02,138 INFO L471 AbstractCegarLoop]: Abstraction has 81863 states and 93584 transitions. [2024-11-08 11:14:02,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:14:02,138 INFO L276 IsEmpty]: Start isEmpty. Operand 81863 states and 93584 transitions. [2024-11-08 11:14:02,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 657 [2024-11-08 11:14:02,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:14:02,157 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, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-08 11:14:02,171 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 11:14:02,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-08 11:14:02,358 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:14:02,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:14:02,358 INFO L85 PathProgramCache]: Analyzing trace with hash -387937251, now seen corresponding path program 1 times [2024-11-08 11:14:02,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:14:02,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558611545] [2024-11-08 11:14:02,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:14:02,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:14:02,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:14:03,477 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 417 proven. 372 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-08 11:14:03,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:14:03,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558611545] [2024-11-08 11:14:03,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558611545] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:14:03,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033708953] [2024-11-08 11:14:03,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:14:03,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:14:03,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:14:03,479 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 11:14:03,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 11:14:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:14:03,640 INFO L255 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 11:14:03,646 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:14:04,341 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 635 proven. 0 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-08 11:14:04,341 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 11:14:04,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033708953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:14:04,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 11:14:04,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-08 11:14:04,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807731652] [2024-11-08 11:14:04,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:14:04,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:14:04,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:14:04,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:14:04,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-08 11:14:04,345 INFO L87 Difference]: Start difference. First operand 81863 states and 93584 transitions. Second operand has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:14:06,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:14:06,636 INFO L93 Difference]: Finished difference Result 183250 states and 212039 transitions. [2024-11-08 11:14:06,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:14:06,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 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 656 [2024-11-08 11:14:06,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:14:06,741 INFO L225 Difference]: With dead ends: 183250 [2024-11-08 11:14:06,741 INFO L226 Difference]: Without dead ends: 101389 [2024-11-08 11:14:06,779 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 660 GetRequests, 655 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-08 11:14:06,779 INFO L432 NwaCegarLoop]: 1304 mSDtfsCounter, 495 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2246 mSolverCounterSat, 475 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 1312 SdHoareTripleChecker+Invalid, 2721 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 475 IncrementalHoareTripleChecker+Valid, 2246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:14:06,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 1312 Invalid, 2721 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [475 Valid, 2246 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 11:14:06,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101389 states. [2024-11-08 11:14:07,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101389 to 99887. [2024-11-08 11:14:07,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99887 states, 99886 states have (on average 1.1316000240273911) internal successors, (113031), 99886 states have internal predecessors, (113031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:14:07,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99887 states to 99887 states and 113031 transitions. [2024-11-08 11:14:07,822 INFO L78 Accepts]: Start accepts. Automaton has 99887 states and 113031 transitions. Word has length 656 [2024-11-08 11:14:07,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:14:07,822 INFO L471 AbstractCegarLoop]: Abstraction has 99887 states and 113031 transitions. [2024-11-08 11:14:07,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:14:07,823 INFO L276 IsEmpty]: Start isEmpty. Operand 99887 states and 113031 transitions. [2024-11-08 11:14:07,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 664 [2024-11-08 11:14:07,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:14:07,840 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:14:07,852 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 11:14:08,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-08 11:14:08,040 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:14:08,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:14:08,041 INFO L85 PathProgramCache]: Analyzing trace with hash -510515516, now seen corresponding path program 1 times [2024-11-08 11:14:08,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:14:08,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485179786] [2024-11-08 11:14:08,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:14:08,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:14:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:14:08,513 INFO L134 CoverageAnalysis]: Checked inductivity of 846 backedges. 704 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-11-08 11:14:08,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:14:08,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485179786] [2024-11-08 11:14:08,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485179786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:14:08,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:14:08,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:14:08,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700741538] [2024-11-08 11:14:08,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:14:08,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:14:08,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:14:08,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:14:08,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:14:08,516 INFO L87 Difference]: Start difference. First operand 99887 states and 113031 transitions. Second operand has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:14:11,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:14:11,054 INFO L93 Difference]: Finished difference Result 222302 states and 252240 transitions. [2024-11-08 11:14:11,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:14:11,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 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 663 [2024-11-08 11:14:11,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:14:11,172 INFO L225 Difference]: With dead ends: 222302 [2024-11-08 11:14:11,172 INFO L226 Difference]: Without dead ends: 122417 [2024-11-08 11:14:11,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:14:11,218 INFO L432 NwaCegarLoop]: 1282 mSDtfsCounter, 655 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2313 mSolverCounterSat, 342 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 655 SdHoareTripleChecker+Valid, 1290 SdHoareTripleChecker+Invalid, 2655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 342 IncrementalHoareTripleChecker+Valid, 2313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-08 11:14:11,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [655 Valid, 1290 Invalid, 2655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [342 Valid, 2313 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-08 11:14:11,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122417 states. [2024-11-08 11:14:12,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122417 to 119413. [2024-11-08 11:14:12,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119413 states, 119412 states have (on average 1.1160519880749002) internal successors, (133270), 119412 states have internal predecessors, (133270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:14:12,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119413 states to 119413 states and 133270 transitions. [2024-11-08 11:14:12,471 INFO L78 Accepts]: Start accepts. Automaton has 119413 states and 133270 transitions. Word has length 663 [2024-11-08 11:14:12,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:14:12,471 INFO L471 AbstractCegarLoop]: Abstraction has 119413 states and 133270 transitions. [2024-11-08 11:14:12,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.33333333333334) internal successors, (523), 3 states have internal predecessors, (523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:14:12,472 INFO L276 IsEmpty]: Start isEmpty. Operand 119413 states and 133270 transitions. [2024-11-08 11:14:12,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 689 [2024-11-08 11:14:12,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:14:12,485 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, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:14:12,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 11:14:12,485 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:14:12,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:14:12,485 INFO L85 PathProgramCache]: Analyzing trace with hash 218152461, now seen corresponding path program 1 times [2024-11-08 11:14:12,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:14:12,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455439150] [2024-11-08 11:14:12,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:14:12,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:14:12,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:14:12,922 INFO L134 CoverageAnalysis]: Checked inductivity of 913 backedges. 739 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2024-11-08 11:14:12,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:14:12,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455439150] [2024-11-08 11:14:12,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455439150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:14:12,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:14:12,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:14:12,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184330501] [2024-11-08 11:14:12,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:14:12,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:14:12,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:14:12,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:14:12,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:14:12,925 INFO L87 Difference]: Start difference. First operand 119413 states and 133270 transitions. Second operand has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:14:15,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:14:15,567 INFO L93 Difference]: Finished difference Result 242579 states and 270368 transitions. [2024-11-08 11:14:15,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:14:15,568 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 0 states have call successors, (0), 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 688 [2024-11-08 11:14:15,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:14:15,690 INFO L225 Difference]: With dead ends: 242579 [2024-11-08 11:14:15,690 INFO L226 Difference]: Without dead ends: 123168 [2024-11-08 11:14:15,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:14:15,719 INFO L432 NwaCegarLoop]: 1171 mSDtfsCounter, 738 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2077 mSolverCounterSat, 597 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 2674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 597 IncrementalHoareTripleChecker+Valid, 2077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 11:14:15,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [738 Valid, 1178 Invalid, 2674 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [597 Valid, 2077 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 11:14:15,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123168 states. [2024-11-08 11:14:16,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123168 to 119413. [2024-11-08 11:14:16,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119413 states, 119412 states have (on average 1.077320537299434) internal successors, (128645), 119412 states have internal predecessors, (128645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:14:16,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119413 states to 119413 states and 128645 transitions. [2024-11-08 11:14:16,761 INFO L78 Accepts]: Start accepts. Automaton has 119413 states and 128645 transitions. Word has length 688 [2024-11-08 11:14:16,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:14:16,762 INFO L471 AbstractCegarLoop]: Abstraction has 119413 states and 128645 transitions. [2024-11-08 11:14:16,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.0) internal successors, (516), 3 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:14:16,762 INFO L276 IsEmpty]: Start isEmpty. Operand 119413 states and 128645 transitions. [2024-11-08 11:14:16,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 713 [2024-11-08 11:14:16,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:14:16,777 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, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:14:16,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 11:14:16,777 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:14:16,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:14:16,777 INFO L85 PathProgramCache]: Analyzing trace with hash 306250717, now seen corresponding path program 1 times [2024-11-08 11:14:16,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:14:16,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403243818] [2024-11-08 11:14:16,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:14:16,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:14:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:14:17,333 INFO L134 CoverageAnalysis]: Checked inductivity of 955 backedges. 799 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2024-11-08 11:14:17,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:14:17,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403243818] [2024-11-08 11:14:17,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403243818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:14:17,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:14:17,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:14:17,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989817793] [2024-11-08 11:14:17,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:14:17,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:14:17,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:14:17,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:14:17,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:14:17,336 INFO L87 Difference]: Start difference. First operand 119413 states and 128645 transitions. Second operand has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:14:19,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:14:19,912 INFO L93 Difference]: Finished difference Result 280129 states and 302392 transitions. [2024-11-08 11:14:19,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:14:19,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 0 states have call successors, (0), 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 712 [2024-11-08 11:14:19,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:14:20,090 INFO L225 Difference]: With dead ends: 280129 [2024-11-08 11:14:20,090 INFO L226 Difference]: Without dead ends: 159967 [2024-11-08 11:14:20,162 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:14:20,162 INFO L432 NwaCegarLoop]: 1056 mSDtfsCounter, 726 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2084 mSolverCounterSat, 651 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 2735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 651 IncrementalHoareTripleChecker+Valid, 2084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:14:20,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [726 Valid, 1063 Invalid, 2735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [651 Valid, 2084 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 11:14:20,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159967 states. [2024-11-08 11:14:21,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159967 to 154710. [2024-11-08 11:14:21,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154710 states, 154709 states have (on average 1.070351433982509) internal successors, (165593), 154709 states have internal predecessors, (165593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:14:21,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154710 states to 154710 states and 165593 transitions. [2024-11-08 11:14:21,941 INFO L78 Accepts]: Start accepts. Automaton has 154710 states and 165593 transitions. Word has length 712 [2024-11-08 11:14:21,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:14:21,942 INFO L471 AbstractCegarLoop]: Abstraction has 154710 states and 165593 transitions. [2024-11-08 11:14:21,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:14:21,942 INFO L276 IsEmpty]: Start isEmpty. Operand 154710 states and 165593 transitions. [2024-11-08 11:14:21,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 743 [2024-11-08 11:14:21,960 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:14:21,960 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, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:14:21,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 11:14:21,960 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:14:21,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:14:21,961 INFO L85 PathProgramCache]: Analyzing trace with hash 636310962, now seen corresponding path program 1 times [2024-11-08 11:14:21,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:14:21,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713623789] [2024-11-08 11:14:21,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:14:21,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:14:22,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:14:23,282 INFO L134 CoverageAnalysis]: Checked inductivity of 985 backedges. 471 proven. 416 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2024-11-08 11:14:23,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:14:23,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713623789] [2024-11-08 11:14:23,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713623789] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:14:23,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561517132] [2024-11-08 11:14:23,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:14:23,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:14:23,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:14:23,284 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 11:14:23,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 11:14:23,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:14:23,509 INFO L255 TraceCheckSpWp]: Trace formula consists of 900 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 11:14:23,517 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:14:24,071 INFO L134 CoverageAnalysis]: Checked inductivity of 985 backedges. 648 proven. 0 refuted. 0 times theorem prover too weak. 337 trivial. 0 not checked. [2024-11-08 11:14:24,072 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 11:14:24,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1561517132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:14:24,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 11:14:24,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-08 11:14:24,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272848422] [2024-11-08 11:14:24,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:14:24,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:14:24,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:14:24,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:14:24,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:14:24,074 INFO L87 Difference]: Start difference. First operand 154710 states and 165593 transitions. Second operand has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:14:26,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:14:26,306 INFO L93 Difference]: Finished difference Result 311671 states and 333515 transitions. [2024-11-08 11:14:26,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:14:26,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 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 742 [2024-11-08 11:14:26,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:14:26,456 INFO L225 Difference]: With dead ends: 311671 [2024-11-08 11:14:26,456 INFO L226 Difference]: Without dead ends: 156963 [2024-11-08 11:14:26,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 746 GetRequests, 742 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:14:26,530 INFO L432 NwaCegarLoop]: 1358 mSDtfsCounter, 488 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2048 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 1366 SdHoareTripleChecker+Invalid, 2234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 2048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:14:26,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 1366 Invalid, 2234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 2048 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 11:14:26,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156963 states. [2024-11-08 11:14:27,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156963 to 153208. [2024-11-08 11:14:28,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153208 states, 153207 states have (on average 1.0666418636224193) internal successors, (163417), 153207 states have internal predecessors, (163417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:14:28,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153208 states to 153208 states and 163417 transitions. [2024-11-08 11:14:28,180 INFO L78 Accepts]: Start accepts. Automaton has 153208 states and 163417 transitions. Word has length 742 [2024-11-08 11:14:28,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:14:28,181 INFO L471 AbstractCegarLoop]: Abstraction has 153208 states and 163417 transitions. [2024-11-08 11:14:28,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.33333333333334) internal successors, (505), 3 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:14:28,181 INFO L276 IsEmpty]: Start isEmpty. Operand 153208 states and 163417 transitions. [2024-11-08 11:14:28,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 746 [2024-11-08 11:14:28,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:14:28,200 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, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:14:28,213 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 11:14:28,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:14:28,401 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:14:28,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:14:28,401 INFO L85 PathProgramCache]: Analyzing trace with hash 138134295, now seen corresponding path program 1 times [2024-11-08 11:14:28,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:14:28,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767445307] [2024-11-08 11:14:28,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:14:28,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:14:28,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:14:29,101 INFO L134 CoverageAnalysis]: Checked inductivity of 1028 backedges. 753 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2024-11-08 11:14:29,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:14:29,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767445307] [2024-11-08 11:14:29,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767445307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:14:29,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:14:29,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:14:29,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214157970] [2024-11-08 11:14:29,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:14:29,102 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:14:29,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:14:29,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:14:29,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:14:29,103 INFO L87 Difference]: Start difference. First operand 153208 states and 163417 transitions. Second operand has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:14:31,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:14:31,710 INFO L93 Difference]: Finished difference Result 305663 states and 326076 transitions. [2024-11-08 11:14:31,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:14:31,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 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 745 [2024-11-08 11:14:31,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:14:31,897 INFO L225 Difference]: With dead ends: 305663 [2024-11-08 11:14:31,897 INFO L226 Difference]: Without dead ends: 153208 [2024-11-08 11:14:31,966 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:14:31,966 INFO L432 NwaCegarLoop]: 1148 mSDtfsCounter, 539 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2146 mSolverCounterSat, 420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 2566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 420 IncrementalHoareTripleChecker+Valid, 2146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 11:14:31,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 1156 Invalid, 2566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [420 Valid, 2146 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 11:14:32,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153208 states. [2024-11-08 11:14:33,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153208 to 147951. [2024-11-08 11:14:33,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147951 states, 147950 states have (on average 1.0436363636363637) internal successors, (154406), 147950 states have internal predecessors, (154406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:14:33,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147951 states to 147951 states and 154406 transitions. [2024-11-08 11:14:33,570 INFO L78 Accepts]: Start accepts. Automaton has 147951 states and 154406 transitions. Word has length 745 [2024-11-08 11:14:33,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:14:33,570 INFO L471 AbstractCegarLoop]: Abstraction has 147951 states and 154406 transitions. [2024-11-08 11:14:33,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.33333333333334) internal successors, (472), 3 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:14:33,570 INFO L276 IsEmpty]: Start isEmpty. Operand 147951 states and 154406 transitions. [2024-11-08 11:14:34,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2024-11-08 11:14:34,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:14:34,028 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, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:14:34,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 11:14:34,028 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:14:34,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:14:34,029 INFO L85 PathProgramCache]: Analyzing trace with hash 1213495379, now seen corresponding path program 1 times [2024-11-08 11:14:34,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:14:34,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956267088] [2024-11-08 11:14:34,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:14:34,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:14:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:14:35,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1071 backedges. 694 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2024-11-08 11:14:35,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:14:35,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956267088] [2024-11-08 11:14:35,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956267088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:14:35,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:14:35,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 11:14:35,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470074112] [2024-11-08 11:14:35,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:14:35,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:14:35,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:14:35,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:14:35,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:14:35,082 INFO L87 Difference]: Start difference. First operand 147951 states and 154406 transitions. Second operand has 4 states, 4 states have (on average 132.25) internal successors, (529), 4 states have internal predecessors, (529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)