./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem18_label51.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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/Problem18_label51.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 b09204eec7fef585004b69b471b657e04a2a46cceef0cdf26e228e2dd271c194 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 20:00:52,187 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 20:00:52,283 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 20:00:52,292 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 20:00:52,293 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 20:00:52,331 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 20:00:52,332 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 20:00:52,332 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 20:00:52,333 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 20:00:52,334 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 20:00:52,335 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 20:00:52,338 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 20:00:52,338 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 20:00:52,339 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 20:00:52,339 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 20:00:52,339 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 20:00:52,339 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 20:00:52,340 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 20:00:52,340 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 20:00:52,340 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 20:00:52,340 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 20:00:52,347 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 20:00:52,347 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 20:00:52,347 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 20:00:52,348 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 20:00:52,348 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 20:00:52,348 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 20:00:52,348 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 20:00:52,348 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 20:00:52,349 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 20:00:52,349 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 20:00:52,349 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 20:00:52,349 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 20:00:52,349 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 20:00:52,350 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 20:00:52,350 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 20:00:52,350 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 20:00:52,353 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 20:00:52,353 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 20:00:52,354 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 20:00:52,354 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 20:00:52,355 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 20:00:52,356 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b09204eec7fef585004b69b471b657e04a2a46cceef0cdf26e228e2dd271c194 [2024-11-09 20:00:52,520 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 20:00:52,537 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 20:00:52,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 20:00:52,541 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 20:00:52,541 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 20:00:52,542 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem18_label51.c [2024-11-09 20:00:53,816 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 20:00:54,121 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 20:00:54,122 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem18_label51.c [2024-11-09 20:00:54,146 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a5dc7553/a4ebf6e0c9bd45a086aafe23a8591df9/FLAGb67524757 [2024-11-09 20:00:54,160 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a5dc7553/a4ebf6e0c9bd45a086aafe23a8591df9 [2024-11-09 20:00:54,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 20:00:54,164 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 20:00:54,165 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 20:00:54,165 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 20:00:54,169 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 20:00:54,170 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:00:54" (1/1) ... [2024-11-09 20:00:54,171 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31abe60b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:54, skipping insertion in model container [2024-11-09 20:00:54,171 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:00:54" (1/1) ... [2024-11-09 20:00:54,232 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 20:00:54,472 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/Problem18_label51.c[6263,6276] [2024-11-09 20:00:54,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 20:00:54,825 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 20:00:54,839 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/Problem18_label51.c[6263,6276] [2024-11-09 20:00:55,094 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 20:00:55,113 INFO L204 MainTranslator]: Completed translation [2024-11-09 20:00:55,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:55 WrapperNode [2024-11-09 20:00:55,113 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 20:00:55,114 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 20:00:55,114 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 20:00:55,114 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 20:00:55,121 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:55" (1/1) ... [2024-11-09 20:00:55,177 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:55" (1/1) ... [2024-11-09 20:00:55,331 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 4134 [2024-11-09 20:00:55,331 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 20:00:55,333 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 20:00:55,333 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 20:00:55,333 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 20:00:55,341 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:55" (1/1) ... [2024-11-09 20:00:55,341 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:55" (1/1) ... [2024-11-09 20:00:55,358 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:55" (1/1) ... [2024-11-09 20:00:55,493 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]. [2024-11-09 20:00:55,493 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:55" (1/1) ... [2024-11-09 20:00:55,493 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:55" (1/1) ... [2024-11-09 20:00:55,594 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:55" (1/1) ... [2024-11-09 20:00:55,610 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:55" (1/1) ... [2024-11-09 20:00:55,628 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:55" (1/1) ... [2024-11-09 20:00:55,635 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:55" (1/1) ... [2024-11-09 20:00:55,664 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 20:00:55,666 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 20:00:55,666 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 20:00:55,666 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 20:00:55,667 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:55" (1/1) ... [2024-11-09 20:00:55,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 20:00:55,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 20:00:55,696 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) [2024-11-09 20:00:55,699 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 [2024-11-09 20:00:55,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 20:00:55,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 20:00:55,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 20:00:55,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 20:00:55,790 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 20:00:55,792 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 20:00:58,908 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L1647: havoc calculate_output_#t~ret8#1; [2024-11-09 20:00:58,909 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3060: havoc calculate_output2_#t~ret9#1; [2024-11-09 20:00:59,127 INFO L? ?]: Removed 1698 outVars from TransFormulas that were not future-live. [2024-11-09 20:00:59,127 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 20:00:59,152 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 20:00:59,153 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 20:00:59,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 08:00:59 BoogieIcfgContainer [2024-11-09 20:00:59,153 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 20:00:59,159 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 20:00:59,159 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 20:00:59,162 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 20:00:59,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:00:54" (1/3) ... [2024-11-09 20:00:59,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a50741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:00:59, skipping insertion in model container [2024-11-09 20:00:59,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:00:55" (2/3) ... [2024-11-09 20:00:59,163 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a50741 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:00:59, skipping insertion in model container [2024-11-09 20:00:59,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 08:00:59" (3/3) ... [2024-11-09 20:00:59,164 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label51.c [2024-11-09 20:00:59,176 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 20:00:59,176 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 20:00:59,239 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 20:00:59,245 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;@36fdc4a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 20:00:59,245 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 20:00:59,252 INFO L276 IsEmpty]: Start isEmpty. Operand has 760 states, 758 states have (on average 2.728232189973615) internal successors, (2068), 759 states have internal predecessors, (2068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:00:59,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-09 20:00:59,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:00:59,261 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:00:59,261 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:00:59,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:00:59,266 INFO L85 PathProgramCache]: Analyzing trace with hash -296906137, now seen corresponding path program 1 times [2024-11-09 20:00:59,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:00:59,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523314384] [2024-11-09 20:00:59,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:00:59,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:00:59,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:00:59,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 20:00:59,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:00:59,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523314384] [2024-11-09 20:00:59,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523314384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:00:59,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:00:59,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 20:00:59,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915496645] [2024-11-09 20:00:59,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:00:59,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 20:00:59,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:00:59,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 20:00:59,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 20:00:59,702 INFO L87 Difference]: Start difference. First operand has 760 states, 758 states have (on average 2.728232189973615) internal successors, (2068), 759 states have internal predecessors, (2068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:03,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:01:03,690 INFO L93 Difference]: Finished difference Result 2211 states and 6135 transitions. [2024-11-09 20:01:03,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 20:01:03,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-09 20:01:03,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:01:03,710 INFO L225 Difference]: With dead ends: 2211 [2024-11-09 20:01:03,710 INFO L226 Difference]: Without dead ends: 1387 [2024-11-09 20:01:03,716 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 [2024-11-09 20:01:03,721 INFO L432 NwaCegarLoop]: 284 mSDtfsCounter, 1309 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 3260 mSolverCounterSat, 967 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 4227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 967 IncrementalHoareTripleChecker+Valid, 3260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-09 20:01:03,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1309 Valid, 295 Invalid, 4227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [967 Valid, 3260 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-09 20:01:03,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1387 states. [2024-11-09 20:01:03,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1387 to 1387. [2024-11-09 20:01:03,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1387 states, 1386 states have (on average 2.6284271284271283) internal successors, (3643), 1386 states have internal predecessors, (3643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:03,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1387 states to 1387 states and 3643 transitions. [2024-11-09 20:01:03,824 INFO L78 Accepts]: Start accepts. Automaton has 1387 states and 3643 transitions. Word has length 62 [2024-11-09 20:01:03,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:01:03,829 INFO L471 AbstractCegarLoop]: Abstraction has 1387 states and 3643 transitions. [2024-11-09 20:01:03,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:03,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1387 states and 3643 transitions. [2024-11-09 20:01:03,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-09 20:01:03,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:01:03,835 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:01:03,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 20:01:03,836 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:01:03,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:01:03,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1111673217, now seen corresponding path program 1 times [2024-11-09 20:01:03,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:01:03,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123087041] [2024-11-09 20:01:03,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:01:03,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:01:03,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:01:03,988 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 20:01:03,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:01:03,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123087041] [2024-11-09 20:01:03,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123087041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:01:03,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:01:03,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 20:01:03,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399296408] [2024-11-09 20:01:03,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:01:03,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 20:01:03,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:01:03,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 20:01:03,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 20:01:03,991 INFO L87 Difference]: Start difference. First operand 1387 states and 3643 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:07,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:01:07,201 INFO L93 Difference]: Finished difference Result 4154 states and 10923 transitions. [2024-11-09 20:01:07,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 20:01:07,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 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 132 [2024-11-09 20:01:07,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:01:07,210 INFO L225 Difference]: With dead ends: 4154 [2024-11-09 20:01:07,210 INFO L226 Difference]: Without dead ends: 2769 [2024-11-09 20:01:07,212 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 [2024-11-09 20:01:07,213 INFO L432 NwaCegarLoop]: 570 mSDtfsCounter, 1298 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2952 mSolverCounterSat, 918 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1298 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 3870 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 918 IncrementalHoareTripleChecker+Valid, 2952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-09 20:01:07,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1298 Valid, 576 Invalid, 3870 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [918 Valid, 2952 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-09 20:01:07,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2769 states. [2024-11-09 20:01:07,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2769 to 2769. [2024-11-09 20:01:07,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2769 states, 2768 states have (on average 2.3273121387283235) internal successors, (6442), 2768 states have internal predecessors, (6442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:07,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 6442 transitions. [2024-11-09 20:01:07,249 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 6442 transitions. Word has length 132 [2024-11-09 20:01:07,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:01:07,250 INFO L471 AbstractCegarLoop]: Abstraction has 2769 states and 6442 transitions. [2024-11-09 20:01:07,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:07,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 6442 transitions. [2024-11-09 20:01:07,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-09 20:01:07,252 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:01:07,252 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:01:07,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 20:01:07,252 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:01:07,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:01:07,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1602269105, now seen corresponding path program 1 times [2024-11-09 20:01:07,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:01:07,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683375448] [2024-11-09 20:01:07,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:01:07,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:01:07,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:01:07,411 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 20:01:07,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:01:07,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683375448] [2024-11-09 20:01:07,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683375448] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:01:07,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:01:07,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 20:01:07,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726552578] [2024-11-09 20:01:07,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:01:07,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 20:01:07,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:01:07,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 20:01:07,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 20:01:07,414 INFO L87 Difference]: Start difference. First operand 2769 states and 6442 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:10,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:01:10,685 INFO L93 Difference]: Finished difference Result 8300 states and 19320 transitions. [2024-11-09 20:01:10,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 20:01:10,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 0 states have call successors, (0), 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 148 [2024-11-09 20:01:10,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:01:10,702 INFO L225 Difference]: With dead ends: 8300 [2024-11-09 20:01:10,703 INFO L226 Difference]: Without dead ends: 5533 [2024-11-09 20:01:10,708 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 [2024-11-09 20:01:10,712 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 1332 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 3179 mSolverCounterSat, 1064 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1332 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 4243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1064 IncrementalHoareTripleChecker+Valid, 3179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-09 20:01:10,712 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1332 Valid, 132 Invalid, 4243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1064 Valid, 3179 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-09 20:01:10,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5533 states. [2024-11-09 20:01:10,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5533 to 5533. [2024-11-09 20:01:10,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5533 states, 5532 states have (on average 2.2859725234996384) internal successors, (12646), 5532 states have internal predecessors, (12646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:10,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5533 states to 5533 states and 12646 transitions. [2024-11-09 20:01:10,791 INFO L78 Accepts]: Start accepts. Automaton has 5533 states and 12646 transitions. Word has length 148 [2024-11-09 20:01:10,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:01:10,791 INFO L471 AbstractCegarLoop]: Abstraction has 5533 states and 12646 transitions. [2024-11-09 20:01:10,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 2 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:10,792 INFO L276 IsEmpty]: Start isEmpty. Operand 5533 states and 12646 transitions. [2024-11-09 20:01:10,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-09 20:01:10,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:01:10,793 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, 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] [2024-11-09 20:01:10,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 20:01:10,793 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:01:10,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:01:10,794 INFO L85 PathProgramCache]: Analyzing trace with hash -694801513, now seen corresponding path program 1 times [2024-11-09 20:01:10,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:01:10,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001347005] [2024-11-09 20:01:10,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:01:10,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:01:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:01:10,912 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 20:01:10,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:01:10,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001347005] [2024-11-09 20:01:10,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001347005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:01:10,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:01:10,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 20:01:10,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595087726] [2024-11-09 20:01:10,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:01:10,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 20:01:10,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:01:10,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 20:01:10,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 20:01:10,916 INFO L87 Difference]: Start difference. First operand 5533 states and 12646 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 2 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:14,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:01:14,036 INFO L93 Difference]: Finished difference Result 15901 states and 36230 transitions. [2024-11-09 20:01:14,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 20:01:14,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 2 states have internal predecessors, (149), 0 states have call successors, (0), 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 149 [2024-11-09 20:01:14,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:01:14,103 INFO L225 Difference]: With dead ends: 15901 [2024-11-09 20:01:14,107 INFO L226 Difference]: Without dead ends: 10370 [2024-11-09 20:01:14,124 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 [2024-11-09 20:01:14,128 INFO L432 NwaCegarLoop]: 455 mSDtfsCounter, 1309 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 3245 mSolverCounterSat, 669 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 3914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 669 IncrementalHoareTripleChecker+Valid, 3245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-09 20:01:14,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1309 Valid, 463 Invalid, 3914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [669 Valid, 3245 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-09 20:01:14,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10370 states. [2024-11-09 20:01:14,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10370 to 9679. [2024-11-09 20:01:14,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9679 states, 9678 states have (on average 2.177722669973135) internal successors, (21076), 9678 states have internal predecessors, (21076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:14,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9679 states to 9679 states and 21076 transitions. [2024-11-09 20:01:14,363 INFO L78 Accepts]: Start accepts. Automaton has 9679 states and 21076 transitions. Word has length 149 [2024-11-09 20:01:14,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:01:14,364 INFO L471 AbstractCegarLoop]: Abstraction has 9679 states and 21076 transitions. [2024-11-09 20:01:14,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 2 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:14,364 INFO L276 IsEmpty]: Start isEmpty. Operand 9679 states and 21076 transitions. [2024-11-09 20:01:14,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-09 20:01:14,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:01:14,368 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:01:14,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 20:01:14,368 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:01:14,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:01:14,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1781365583, now seen corresponding path program 1 times [2024-11-09 20:01:14,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:01:14,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682261774] [2024-11-09 20:01:14,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:01:14,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:01:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:01:14,731 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-09 20:01:14,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:01:14,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682261774] [2024-11-09 20:01:14,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682261774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:01:14,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:01:14,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 20:01:14,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279712242] [2024-11-09 20:01:14,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:01:14,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 20:01:14,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:01:14,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 20:01:14,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 20:01:14,735 INFO L87 Difference]: Start difference. First operand 9679 states and 21076 transitions. Second operand has 4 states, 4 states have (on average 48.25) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:19,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:01:19,634 INFO L93 Difference]: Finished difference Result 23502 states and 50376 transitions. [2024-11-09 20:01:19,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 20:01:19,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 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 251 [2024-11-09 20:01:19,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:01:19,658 INFO L225 Difference]: With dead ends: 23502 [2024-11-09 20:01:19,658 INFO L226 Difference]: Without dead ends: 13825 [2024-11-09 20:01:19,668 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 [2024-11-09 20:01:19,669 INFO L432 NwaCegarLoop]: 632 mSDtfsCounter, 3738 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 6862 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3738 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 6943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 6862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-09 20:01:19,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3738 Valid, 654 Invalid, 6943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 6862 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-09 20:01:19,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13825 states. [2024-11-09 20:01:19,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13825 to 12443. [2024-11-09 20:01:19,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12443 states, 12442 states have (on average 2.1340620479022667) internal successors, (26552), 12442 states have internal predecessors, (26552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:19,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12443 states to 12443 states and 26552 transitions. [2024-11-09 20:01:19,975 INFO L78 Accepts]: Start accepts. Automaton has 12443 states and 26552 transitions. Word has length 251 [2024-11-09 20:01:19,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:01:19,975 INFO L471 AbstractCegarLoop]: Abstraction has 12443 states and 26552 transitions. [2024-11-09 20:01:19,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:19,976 INFO L276 IsEmpty]: Start isEmpty. Operand 12443 states and 26552 transitions. [2024-11-09 20:01:19,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2024-11-09 20:01:19,980 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:01:19,980 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, 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, 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] [2024-11-09 20:01:19,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 20:01:19,981 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:01:19,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:01:19,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1339606335, now seen corresponding path program 1 times [2024-11-09 20:01:19,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:01:19,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619871295] [2024-11-09 20:01:19,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:01:19,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:01:20,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:01:20,360 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 349 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-09 20:01:20,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:01:20,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619871295] [2024-11-09 20:01:20,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619871295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:01:20,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:01:20,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 20:01:20,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615037427] [2024-11-09 20:01:20,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:01:20,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 20:01:20,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:01:20,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 20:01:20,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 20:01:20,362 INFO L87 Difference]: Start difference. First operand 12443 states and 26552 transitions. Second operand has 4 states, 4 states have (on average 89.75) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:23,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:01:23,929 INFO L93 Difference]: Finished difference Result 27702 states and 58476 transitions. [2024-11-09 20:01:23,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 20:01:23,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 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 434 [2024-11-09 20:01:23,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:01:23,950 INFO L225 Difference]: With dead ends: 27702 [2024-11-09 20:01:23,950 INFO L226 Difference]: Without dead ends: 15207 [2024-11-09 20:01:23,958 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 [2024-11-09 20:01:23,959 INFO L432 NwaCegarLoop]: 627 mSDtfsCounter, 1134 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 4900 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 5102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 4900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-09 20:01:23,959 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1134 Valid, 644 Invalid, 5102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 4900 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-09 20:01:23,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15207 states. [2024-11-09 20:01:24,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15207 to 15207. [2024-11-09 20:01:24,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15207 states, 15206 states have (on average 2.048730764172037) internal successors, (31153), 15206 states have internal predecessors, (31153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:24,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15207 states to 15207 states and 31153 transitions. [2024-11-09 20:01:24,129 INFO L78 Accepts]: Start accepts. Automaton has 15207 states and 31153 transitions. Word has length 434 [2024-11-09 20:01:24,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:01:24,130 INFO L471 AbstractCegarLoop]: Abstraction has 15207 states and 31153 transitions. [2024-11-09 20:01:24,130 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.75) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:24,130 INFO L276 IsEmpty]: Start isEmpty. Operand 15207 states and 31153 transitions. [2024-11-09 20:01:24,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 879 [2024-11-09 20:01:24,141 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:01:24,143 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:01:24,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 20:01:24,143 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:01:24,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:01:24,144 INFO L85 PathProgramCache]: Analyzing trace with hash -313874359, now seen corresponding path program 1 times [2024-11-09 20:01:24,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:01:24,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618696709] [2024-11-09 20:01:24,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:01:24,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:01:24,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:01:25,137 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2024-11-09 20:01:25,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:01:25,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618696709] [2024-11-09 20:01:25,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618696709] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 20:01:25,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022866689] [2024-11-09 20:01:25,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:01:25,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 20:01:25,139 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 20:01:25,140 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) [2024-11-09 20:01:25,145 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 20:01:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:01:25,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 20:01:25,445 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 20:01:26,577 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2024-11-09 20:01:26,578 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 20:01:26,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022866689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:01:26,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 20:01:26,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-09 20:01:26,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473554749] [2024-11-09 20:01:26,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:01:26,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 20:01:26,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:01:26,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 20:01:26,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 20:01:26,581 INFO L87 Difference]: Start difference. First operand 15207 states and 31153 transitions. Second operand has 3 states, 3 states have (on average 174.0) internal successors, (522), 2 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:29,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:01:29,601 INFO L93 Difference]: Finished difference Result 38013 states and 77867 transitions. [2024-11-09 20:01:29,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 20:01:29,605 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 174.0) internal successors, (522), 2 states have internal predecessors, (522), 0 states have call successors, (0), 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 878 [2024-11-09 20:01:29,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:01:29,644 INFO L225 Difference]: With dead ends: 38013 [2024-11-09 20:01:29,645 INFO L226 Difference]: Without dead ends: 22808 [2024-11-09 20:01:29,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 880 GetRequests, 877 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 20:01:29,661 INFO L432 NwaCegarLoop]: 358 mSDtfsCounter, 805 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 3221 mSolverCounterSat, 366 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 3587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 366 IncrementalHoareTripleChecker+Valid, 3221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-09 20:01:29,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 366 Invalid, 3587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [366 Valid, 3221 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-09 20:01:29,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22808 states. [2024-11-09 20:01:29,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22808 to 19353. [2024-11-09 20:01:29,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19353 states, 19352 states have (on average 2.00738941711451) internal successors, (38847), 19352 states have internal predecessors, (38847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:29,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19353 states to 19353 states and 38847 transitions. [2024-11-09 20:01:29,987 INFO L78 Accepts]: Start accepts. Automaton has 19353 states and 38847 transitions. Word has length 878 [2024-11-09 20:01:29,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:01:29,989 INFO L471 AbstractCegarLoop]: Abstraction has 19353 states and 38847 transitions. [2024-11-09 20:01:29,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.0) internal successors, (522), 2 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:29,989 INFO L276 IsEmpty]: Start isEmpty. Operand 19353 states and 38847 transitions. [2024-11-09 20:01:30,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 998 [2024-11-09 20:01:30,008 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:01:30,009 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, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:01:30,026 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 20:01:30,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 20:01:30,211 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:01:30,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:01:30,212 INFO L85 PathProgramCache]: Analyzing trace with hash 164280085, now seen corresponding path program 1 times [2024-11-09 20:01:30,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:01:30,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928788117] [2024-11-09 20:01:30,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:01:30,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:01:30,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:01:31,029 INFO L134 CoverageAnalysis]: Checked inductivity of 712 backedges. 414 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2024-11-09 20:01:31,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:01:31,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928788117] [2024-11-09 20:01:31,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928788117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:01:31,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:01:31,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 20:01:31,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890948242] [2024-11-09 20:01:31,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:01:31,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 20:01:31,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:01:31,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 20:01:31,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 20:01:31,032 INFO L87 Difference]: Start difference. First operand 19353 states and 38847 transitions. Second operand has 3 states, 3 states have (on average 233.33333333333334) internal successors, (700), 3 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:33,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:01:33,933 INFO L93 Difference]: Finished difference Result 47687 states and 96084 transitions. [2024-11-09 20:01:33,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 20:01:33,934 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 233.33333333333334) internal successors, (700), 3 states have internal predecessors, (700), 0 states have call successors, (0), 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 997 [2024-11-09 20:01:33,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:01:33,967 INFO L225 Difference]: With dead ends: 47687 [2024-11-09 20:01:33,968 INFO L226 Difference]: Without dead ends: 28336 [2024-11-09 20:01:33,986 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 [2024-11-09 20:01:33,987 INFO L432 NwaCegarLoop]: 1597 mSDtfsCounter, 1199 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 3197 mSolverCounterSat, 349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1199 SdHoareTripleChecker+Valid, 1604 SdHoareTripleChecker+Invalid, 3546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 349 IncrementalHoareTripleChecker+Valid, 3197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-09 20:01:33,988 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1199 Valid, 1604 Invalid, 3546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [349 Valid, 3197 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-09 20:01:34,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28336 states. [2024-11-09 20:01:34,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28336 to 28336. [2024-11-09 20:01:34,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28336 states, 28335 states have (on average 1.991706370213517) internal successors, (56435), 28335 states have internal predecessors, (56435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:34,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28336 states to 28336 states and 56435 transitions. [2024-11-09 20:01:34,257 INFO L78 Accepts]: Start accepts. Automaton has 28336 states and 56435 transitions. Word has length 997 [2024-11-09 20:01:34,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:01:34,259 INFO L471 AbstractCegarLoop]: Abstraction has 28336 states and 56435 transitions. [2024-11-09 20:01:34,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 233.33333333333334) internal successors, (700), 3 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:34,259 INFO L276 IsEmpty]: Start isEmpty. Operand 28336 states and 56435 transitions. [2024-11-09 20:01:34,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1005 [2024-11-09 20:01:34,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:01:34,268 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, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:01:34,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 20:01:34,268 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:01:34,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:01:34,269 INFO L85 PathProgramCache]: Analyzing trace with hash -826319810, now seen corresponding path program 1 times [2024-11-09 20:01:34,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:01:34,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87574732] [2024-11-09 20:01:34,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:01:34,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:01:34,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:01:35,470 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 357 proven. 362 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 20:01:35,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:01:35,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87574732] [2024-11-09 20:01:35,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87574732] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 20:01:35,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425702281] [2024-11-09 20:01:35,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:01:35,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 20:01:35,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 20:01:35,475 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) [2024-11-09 20:01:35,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 20:01:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:01:35,693 INFO L255 TraceCheckSpWp]: Trace formula consists of 1141 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 20:01:35,700 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 20:01:35,872 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 543 trivial. 0 not checked. [2024-11-09 20:01:35,872 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 20:01:35,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425702281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:01:35,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 20:01:35,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-09 20:01:35,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900379836] [2024-11-09 20:01:35,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:01:35,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 20:01:35,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:01:35,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 20:01:35,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 20:01:35,875 INFO L87 Difference]: Start difference. First operand 28336 states and 56435 transitions. Second operand has 3 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:38,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:01:38,829 INFO L93 Difference]: Finished difference Result 56670 states and 112868 transitions. [2024-11-09 20:01:38,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 20:01:38,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 0 states have call successors, (0), 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 1004 [2024-11-09 20:01:38,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:01:38,866 INFO L225 Difference]: With dead ends: 56670 [2024-11-09 20:01:38,867 INFO L226 Difference]: Without dead ends: 28336 [2024-11-09 20:01:38,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1010 GetRequests, 1004 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 20:01:38,885 INFO L432 NwaCegarLoop]: 1397 mSDtfsCounter, 1358 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 3216 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1358 SdHoareTripleChecker+Valid, 1406 SdHoareTripleChecker+Invalid, 3407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 3216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-09 20:01:38,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1358 Valid, 1406 Invalid, 3407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 3216 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-09 20:01:38,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28336 states. [2024-11-09 20:01:39,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28336 to 28336. [2024-11-09 20:01:39,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28336 states, 28335 states have (on average 1.9754014469737073) internal successors, (55973), 28335 states have internal predecessors, (55973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:39,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28336 states to 28336 states and 55973 transitions. [2024-11-09 20:01:39,169 INFO L78 Accepts]: Start accepts. Automaton has 28336 states and 55973 transitions. Word has length 1004 [2024-11-09 20:01:39,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:01:39,169 INFO L471 AbstractCegarLoop]: Abstraction has 28336 states and 55973 transitions. [2024-11-09 20:01:39,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 193.66666666666666) internal successors, (581), 3 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:39,170 INFO L276 IsEmpty]: Start isEmpty. Operand 28336 states and 55973 transitions. [2024-11-09 20:01:39,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1137 [2024-11-09 20:01:39,179 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:01:39,180 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:01:39,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 20:01:39,380 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,SelfDestructingSolverStorable8 [2024-11-09 20:01:39,383 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:01:39,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:01:39,384 INFO L85 PathProgramCache]: Analyzing trace with hash -2080479129, now seen corresponding path program 1 times [2024-11-09 20:01:39,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:01:39,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698867099] [2024-11-09 20:01:39,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:01:39,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:01:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:01:40,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1362 backedges. 658 proven. 618 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-09 20:01:40,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:01:40,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698867099] [2024-11-09 20:01:40,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698867099] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 20:01:40,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2135064438] [2024-11-09 20:01:40,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:01:40,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 20:01:40,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 20:01:40,660 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) [2024-11-09 20:01:40,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 20:01:40,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:01:40,902 INFO L255 TraceCheckSpWp]: Trace formula consists of 1325 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 20:01:40,909 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 20:01:40,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1362 backedges. 633 proven. 0 refuted. 0 times theorem prover too weak. 729 trivial. 0 not checked. [2024-11-09 20:01:40,999 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 20:01:40,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2135064438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:01:40,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 20:01:40,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-09 20:01:40,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633420322] [2024-11-09 20:01:40,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:01:41,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 20:01:41,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:01:41,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 20:01:41,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-09 20:01:41,001 INFO L87 Difference]: Start difference. First operand 28336 states and 55973 transitions. Second operand has 3 states, 3 states have (on average 222.33333333333334) internal successors, (667), 3 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:43,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:01:43,926 INFO L93 Difference]: Finished difference Result 63580 states and 126355 transitions. [2024-11-09 20:01:43,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 20:01:43,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 222.33333333333334) internal successors, (667), 3 states have internal predecessors, (667), 0 states have call successors, (0), 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 1136 [2024-11-09 20:01:43,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:01:43,967 INFO L225 Difference]: With dead ends: 63580 [2024-11-09 20:01:43,967 INFO L226 Difference]: Without dead ends: 35246 [2024-11-09 20:01:43,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1143 GetRequests, 1136 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-09 20:01:43,985 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 1321 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 3063 mSolverCounterSat, 481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1321 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 3544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 3063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-09 20:01:43,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1321 Valid, 168 Invalid, 3544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 3063 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-09 20:01:44,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35246 states. [2024-11-09 20:01:44,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35246 to 35246. [2024-11-09 20:01:44,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35246 states, 35245 states have (on average 1.9773301177471982) internal successors, (69691), 35245 states have internal predecessors, (69691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:44,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35246 states to 35246 states and 69691 transitions. [2024-11-09 20:01:44,298 INFO L78 Accepts]: Start accepts. Automaton has 35246 states and 69691 transitions. Word has length 1136 [2024-11-09 20:01:44,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:01:44,299 INFO L471 AbstractCegarLoop]: Abstraction has 35246 states and 69691 transitions. [2024-11-09 20:01:44,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 222.33333333333334) internal successors, (667), 3 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:44,299 INFO L276 IsEmpty]: Start isEmpty. Operand 35246 states and 69691 transitions. [2024-11-09 20:01:44,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1143 [2024-11-09 20:01:44,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:01:44,309 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:01:44,325 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 20:01:44,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 20:01:44,510 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:01:44,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:01:44,511 INFO L85 PathProgramCache]: Analyzing trace with hash 2141957717, now seen corresponding path program 1 times [2024-11-09 20:01:44,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:01:44,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511082084] [2024-11-09 20:01:44,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:01:44,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:01:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:01:45,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1377 backedges. 558 proven. 559 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2024-11-09 20:01:45,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:01:45,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511082084] [2024-11-09 20:01:45,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511082084] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 20:01:45,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90430023] [2024-11-09 20:01:45,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:01:45,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 20:01:45,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 20:01:45,544 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 20:01:45,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 20:01:45,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:01:45,789 INFO L255 TraceCheckSpWp]: Trace formula consists of 1333 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 20:01:45,797 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 20:01:45,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1377 backedges. 648 proven. 0 refuted. 0 times theorem prover too weak. 729 trivial. 0 not checked. [2024-11-09 20:01:45,891 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 20:01:45,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90430023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:01:45,891 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 20:01:45,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-09 20:01:45,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485390980] [2024-11-09 20:01:45,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:01:45,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 20:01:45,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:01:45,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 20:01:45,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 20:01:45,894 INFO L87 Difference]: Start difference. First operand 35246 states and 69691 transitions. Second operand has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:49,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:01:49,038 INFO L93 Difference]: Finished difference Result 82237 states and 163276 transitions. [2024-11-09 20:01:49,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 20:01:49,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 0 states have call successors, (0), 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 1142 [2024-11-09 20:01:49,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:01:49,092 INFO L225 Difference]: With dead ends: 82237 [2024-11-09 20:01:49,092 INFO L226 Difference]: Without dead ends: 41465 [2024-11-09 20:01:49,112 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1147 GetRequests, 1142 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 20:01:49,112 INFO L432 NwaCegarLoop]: 1592 mSDtfsCounter, 1268 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2945 mSolverCounterSat, 568 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1268 SdHoareTripleChecker+Valid, 1601 SdHoareTripleChecker+Invalid, 3513 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 568 IncrementalHoareTripleChecker+Valid, 2945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-09 20:01:49,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1268 Valid, 1601 Invalid, 3513 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [568 Valid, 2945 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-09 20:01:49,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41465 states. [2024-11-09 20:01:49,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41465 to 38701. [2024-11-09 20:01:49,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38701 states, 38700 states have (on average 1.9507235142118864) internal successors, (75493), 38700 states have internal predecessors, (75493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:49,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38701 states to 38701 states and 75493 transitions. [2024-11-09 20:01:49,579 INFO L78 Accepts]: Start accepts. Automaton has 38701 states and 75493 transitions. Word has length 1142 [2024-11-09 20:01:49,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:01:49,580 INFO L471 AbstractCegarLoop]: Abstraction has 38701 states and 75493 transitions. [2024-11-09 20:01:49,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 224.33333333333334) internal successors, (673), 3 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:49,580 INFO L276 IsEmpty]: Start isEmpty. Operand 38701 states and 75493 transitions. [2024-11-09 20:01:49,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1356 [2024-11-09 20:01:49,598 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:01:49,599 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:01:49,612 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 20:01:49,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 20:01:49,800 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:01:49,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:01:49,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1756875806, now seen corresponding path program 1 times [2024-11-09 20:01:49,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:01:49,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900267674] [2024-11-09 20:01:49,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:01:49,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:01:49,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:01:50,759 INFO L134 CoverageAnalysis]: Checked inductivity of 2191 backedges. 1428 proven. 0 refuted. 0 times theorem prover too weak. 763 trivial. 0 not checked. [2024-11-09 20:01:50,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:01:50,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900267674] [2024-11-09 20:01:50,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900267674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:01:50,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:01:50,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 20:01:50,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871269926] [2024-11-09 20:01:50,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:01:50,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 20:01:50,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:01:50,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 20:01:50,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 20:01:50,761 INFO L87 Difference]: Start difference. First operand 38701 states and 75493 transitions. Second operand has 4 states, 4 states have (on average 199.75) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:54,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:01:54,401 INFO L93 Difference]: Finished difference Result 82237 states and 160599 transitions. [2024-11-09 20:01:54,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 20:01:54,403 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 199.75) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 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 1355 [2024-11-09 20:01:54,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:01:54,452 INFO L225 Difference]: With dead ends: 82237 [2024-11-09 20:01:54,452 INFO L226 Difference]: Without dead ends: 44229 [2024-11-09 20:01:54,469 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 [2024-11-09 20:01:54,469 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 2840 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 4555 mSolverCounterSat, 337 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2840 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 4892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 337 IncrementalHoareTripleChecker+Valid, 4555 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-09 20:01:54,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2840 Valid, 90 Invalid, 4892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [337 Valid, 4555 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-09 20:01:54,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44229 states. [2024-11-09 20:01:54,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44229 to 43538. [2024-11-09 20:01:54,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43538 states, 43537 states have (on average 1.9502951512506603) internal successors, (84910), 43537 states have internal predecessors, (84910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:54,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43538 states to 43538 states and 84910 transitions. [2024-11-09 20:01:54,864 INFO L78 Accepts]: Start accepts. Automaton has 43538 states and 84910 transitions. Word has length 1355 [2024-11-09 20:01:54,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:01:54,864 INFO L471 AbstractCegarLoop]: Abstraction has 43538 states and 84910 transitions. [2024-11-09 20:01:54,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 199.75) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:54,865 INFO L276 IsEmpty]: Start isEmpty. Operand 43538 states and 84910 transitions. [2024-11-09 20:01:54,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1377 [2024-11-09 20:01:54,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:01:54,884 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:01:54,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 20:01:54,884 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:01:54,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:01:54,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1763172787, now seen corresponding path program 1 times [2024-11-09 20:01:54,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:01:54,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103216034] [2024-11-09 20:01:54,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:01:54,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:01:54,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:01:55,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2158 backedges. 1370 proven. 0 refuted. 0 times theorem prover too weak. 788 trivial. 0 not checked. [2024-11-09 20:01:55,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:01:55,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103216034] [2024-11-09 20:01:55,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103216034] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:01:55,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:01:55,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 20:01:55,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553988140] [2024-11-09 20:01:55,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:01:55,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 20:01:55,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:01:55,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 20:01:55,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 20:01:55,417 INFO L87 Difference]: Start difference. First operand 43538 states and 84910 transitions. Second operand has 3 states, 3 states have (on average 283.0) internal successors, (849), 3 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:58,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:01:58,236 INFO L93 Difference]: Finished difference Result 95366 states and 186378 transitions. [2024-11-09 20:01:58,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 20:01:58,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 283.0) internal successors, (849), 3 states have internal predecessors, (849), 0 states have call successors, (0), 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 1376 [2024-11-09 20:01:58,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:01:58,301 INFO L225 Difference]: With dead ends: 95366 [2024-11-09 20:01:58,302 INFO L226 Difference]: Without dead ends: 52521 [2024-11-09 20:01:58,328 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 [2024-11-09 20:01:58,328 INFO L432 NwaCegarLoop]: 1570 mSDtfsCounter, 1076 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 3001 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1076 SdHoareTripleChecker+Valid, 1579 SdHoareTripleChecker+Invalid, 3218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 3001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-09 20:01:58,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1076 Valid, 1579 Invalid, 3218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 3001 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-09 20:01:58,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52521 states. [2024-11-09 20:01:58,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52521 to 52521. [2024-11-09 20:01:58,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52521 states, 52520 states have (on average 1.947010662604722) internal successors, (102257), 52520 states have internal predecessors, (102257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:59,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52521 states to 52521 states and 102257 transitions. [2024-11-09 20:01:59,180 INFO L78 Accepts]: Start accepts. Automaton has 52521 states and 102257 transitions. Word has length 1376 [2024-11-09 20:01:59,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:01:59,181 INFO L471 AbstractCegarLoop]: Abstraction has 52521 states and 102257 transitions. [2024-11-09 20:01:59,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 283.0) internal successors, (849), 3 states have internal predecessors, (849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:01:59,181 INFO L276 IsEmpty]: Start isEmpty. Operand 52521 states and 102257 transitions. [2024-11-09 20:01:59,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1422 [2024-11-09 20:01:59,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:01:59,216 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:01:59,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 20:01:59,216 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:01:59,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:01:59,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1123012883, now seen corresponding path program 1 times [2024-11-09 20:01:59,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:01:59,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603926188] [2024-11-09 20:01:59,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:01:59,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:01:59,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:01:59,954 INFO L134 CoverageAnalysis]: Checked inductivity of 2714 backedges. 1386 proven. 0 refuted. 0 times theorem prover too weak. 1328 trivial. 0 not checked. [2024-11-09 20:01:59,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:01:59,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603926188] [2024-11-09 20:01:59,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603926188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:01:59,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:01:59,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 20:01:59,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929053468] [2024-11-09 20:01:59,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:01:59,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 20:01:59,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:01:59,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 20:01:59,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 20:01:59,957 INFO L87 Difference]: Start difference. First operand 52521 states and 102257 transitions. Second operand has 3 states, 3 states have (on average 240.33333333333334) internal successors, (721), 3 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:02:02,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:02:02,601 INFO L93 Difference]: Finished difference Result 125770 states and 245359 transitions. [2024-11-09 20:02:02,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 20:02:02,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 240.33333333333334) internal successors, (721), 3 states have internal predecessors, (721), 0 states have call successors, (0), 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 1421 [2024-11-09 20:02:02,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:02:02,722 INFO L225 Difference]: With dead ends: 125770 [2024-11-09 20:02:02,723 INFO L226 Difference]: Without dead ends: 73942 [2024-11-09 20:02:02,755 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 [2024-11-09 20:02:02,756 INFO L432 NwaCegarLoop]: 1512 mSDtfsCounter, 1235 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2928 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1235 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 3234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 2928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-09 20:02:02,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1235 Valid, 1519 Invalid, 3234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 2928 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-09 20:02:02,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73942 states. [2024-11-09 20:02:03,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73942 to 72560. [2024-11-09 20:02:03,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72560 states, 72559 states have (on average 1.9445003376562522) internal successors, (141091), 72559 states have internal predecessors, (141091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:02:03,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72560 states to 72560 states and 141091 transitions. [2024-11-09 20:02:03,808 INFO L78 Accepts]: Start accepts. Automaton has 72560 states and 141091 transitions. Word has length 1421 [2024-11-09 20:02:03,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:02:03,809 INFO L471 AbstractCegarLoop]: Abstraction has 72560 states and 141091 transitions. [2024-11-09 20:02:03,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 240.33333333333334) internal successors, (721), 3 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:02:03,809 INFO L276 IsEmpty]: Start isEmpty. Operand 72560 states and 141091 transitions. [2024-11-09 20:02:03,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1486 [2024-11-09 20:02:03,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:02:03,839 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:02:03,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 20:02:03,839 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:02:03,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:02:03,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1335304901, now seen corresponding path program 1 times [2024-11-09 20:02:03,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:02:03,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123417375] [2024-11-09 20:02:03,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:02:03,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:02:04,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:02:06,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2893 backedges. 921 proven. 0 refuted. 0 times theorem prover too weak. 1972 trivial. 0 not checked. [2024-11-09 20:02:06,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:02:06,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123417375] [2024-11-09 20:02:06,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123417375] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:02:06,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:02:06,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 20:02:06,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781473341] [2024-11-09 20:02:06,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:02:06,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 20:02:06,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:02:06,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 20:02:06,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 20:02:06,544 INFO L87 Difference]: Start difference. First operand 72560 states and 141091 transitions. Second operand has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:02:09,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:02:09,063 INFO L93 Difference]: Finished difference Result 147191 states and 286151 transitions. [2024-11-09 20:02:09,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 20:02:09,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 0 states have call successors, (0), 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 1485 [2024-11-09 20:02:09,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:02:09,150 INFO L225 Difference]: With dead ends: 147191 [2024-11-09 20:02:09,150 INFO L226 Difference]: Without dead ends: 73942 [2024-11-09 20:02:09,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 20:02:09,192 INFO L432 NwaCegarLoop]: 1376 mSDtfsCounter, 1267 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2906 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1267 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 3146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 2906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-09 20:02:09,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1267 Valid, 1383 Invalid, 3146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 2906 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-09 20:02:09,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73942 states. [2024-11-09 20:02:10,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73942 to 73251. [2024-11-09 20:02:10,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73251 states, 73250 states have (on average 1.9386484641638224) internal successors, (142006), 73250 states have internal predecessors, (142006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:02:10,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73251 states to 73251 states and 142006 transitions. [2024-11-09 20:02:10,255 INFO L78 Accepts]: Start accepts. Automaton has 73251 states and 142006 transitions. Word has length 1485 [2024-11-09 20:02:10,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:02:10,256 INFO L471 AbstractCegarLoop]: Abstraction has 73251 states and 142006 transitions. [2024-11-09 20:02:10,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:02:10,256 INFO L276 IsEmpty]: Start isEmpty. Operand 73251 states and 142006 transitions. [2024-11-09 20:02:10,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1563 [2024-11-09 20:02:10,289 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:02:10,290 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:02:10,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 20:02:10,290 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:02:10,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:02:10,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1185351635, now seen corresponding path program 1 times [2024-11-09 20:02:10,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:02:10,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1104764406] [2024-11-09 20:02:10,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:02:10,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:02:10,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:02:12,057 INFO L134 CoverageAnalysis]: Checked inductivity of 3053 backedges. 921 proven. 0 refuted. 0 times theorem prover too weak. 2132 trivial. 0 not checked. [2024-11-09 20:02:12,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:02:12,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1104764406] [2024-11-09 20:02:12,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1104764406] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:02:12,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:02:12,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 20:02:12,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935394534] [2024-11-09 20:02:12,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:02:12,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 20:02:12,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:02:12,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 20:02:12,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 20:02:12,061 INFO L87 Difference]: Start difference. First operand 73251 states and 142006 transitions. Second operand has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:02:14,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 20:02:14,505 INFO L93 Difference]: Finished difference Result 154101 states and 298963 transitions. [2024-11-09 20:02:14,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 20:02:14,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 0 states have call successors, (0), 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 1562 [2024-11-09 20:02:14,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 20:02:14,800 INFO L225 Difference]: With dead ends: 154101 [2024-11-09 20:02:14,801 INFO L226 Difference]: Without dead ends: 81543 [2024-11-09 20:02:14,838 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 [2024-11-09 20:02:14,838 INFO L432 NwaCegarLoop]: 263 mSDtfsCounter, 1234 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2979 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1234 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 3185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 2979 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-09 20:02:14,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1234 Valid, 271 Invalid, 3185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 2979 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-09 20:02:14,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81543 states. [2024-11-09 20:02:15,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81543 to 71869. [2024-11-09 20:02:15,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71869 states, 71868 states have (on average 1.9388044748705962) internal successors, (139338), 71868 states have internal predecessors, (139338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:02:15,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71869 states to 71869 states and 139338 transitions. [2024-11-09 20:02:15,994 INFO L78 Accepts]: Start accepts. Automaton has 71869 states and 139338 transitions. Word has length 1562 [2024-11-09 20:02:15,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 20:02:15,995 INFO L471 AbstractCegarLoop]: Abstraction has 71869 states and 139338 transitions. [2024-11-09 20:02:15,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 20:02:15,996 INFO L276 IsEmpty]: Start isEmpty. Operand 71869 states and 139338 transitions. [2024-11-09 20:02:16,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1592 [2024-11-09 20:02:16,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 20:02:16,105 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 20:02:16,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 20:02:16,105 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 20:02:16,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 20:02:16,106 INFO L85 PathProgramCache]: Analyzing trace with hash 475054785, now seen corresponding path program 1 times [2024-11-09 20:02:16,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 20:02:16,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236960626] [2024-11-09 20:02:16,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 20:02:16,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 20:02:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 20:02:17,550 INFO L134 CoverageAnalysis]: Checked inductivity of 2768 backedges. 412 proven. 0 refuted. 0 times theorem prover too weak. 2356 trivial. 0 not checked. [2024-11-09 20:02:17,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 20:02:17,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236960626] [2024-11-09 20:02:17,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236960626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 20:02:17,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 20:02:17,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 20:02:17,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451490274] [2024-11-09 20:02:17,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 20:02:17,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 20:02:17,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 20:02:17,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 20:02:17,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-09 20:02:17,552 INFO L87 Difference]: Start difference. First operand 71869 states and 139338 transitions. Second operand has 6 states, 6 states have (on average 97.5) internal successors, (585), 6 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)