./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.UNBOUNDED.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.UNBOUNDED.pals.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 71881827e42af7e93d8d7789f21cf70c42c80b5b7128690239afcf02ba9daf37 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 22:30:46,976 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 22:30:47,037 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 22:30:47,041 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 22:30:47,041 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 22:30:47,064 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 22:30:47,065 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 22:30:47,065 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 22:30:47,065 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 22:30:47,066 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 22:30:47,066 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 22:30:47,066 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 22:30:47,067 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 22:30:47,067 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 22:30:47,067 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 22:30:47,067 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 22:30:47,068 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 22:30:47,068 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 22:30:47,068 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 22:30:47,068 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 22:30:47,069 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 22:30:47,073 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 22:30:47,074 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 22:30:47,074 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 22:30:47,074 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 22:30:47,074 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 22:30:47,075 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 22:30:47,075 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 22:30:47,075 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 22:30:47,075 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 22:30:47,076 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 22:30:47,076 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 22:30:47,076 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:30:47,076 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 22:30:47,077 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 22:30:47,077 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 22:30:47,077 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 22:30:47,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 22:30:47,077 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 22:30:47,078 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 22:30:47,078 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 22:30:47,078 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 22:30:47,078 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71881827e42af7e93d8d7789f21cf70c42c80b5b7128690239afcf02ba9daf37 [2024-11-19 22:30:47,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 22:30:47,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 22:30:47,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 22:30:47,239 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 22:30:47,239 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 22:30:47,240 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.UNBOUNDED.pals.c [2024-11-19 22:30:48,499 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 22:30:48,695 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 22:30:48,696 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.UNBOUNDED.pals.c [2024-11-19 22:30:48,710 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/506aa4433/8995e15fc7e74c9898c12645c4b9b1e8/FLAG9c5eeb827 [2024-11-19 22:30:48,724 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/506aa4433/8995e15fc7e74c9898c12645c4b9b1e8 [2024-11-19 22:30:48,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 22:30:48,728 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 22:30:48,731 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 22:30:48,731 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 22:30:48,735 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 22:30:48,735 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:30:48" (1/1) ... [2024-11-19 22:30:48,736 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7446e20c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:48, skipping insertion in model container [2024-11-19 22:30:48,737 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:30:48" (1/1) ... [2024-11-19 22:30:48,772 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 22:30:48,970 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.UNBOUNDED.pals.c[15103,15116] [2024-11-19 22:30:48,973 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:30:48,981 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 22:30:49,034 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.6.ufo.UNBOUNDED.pals.c[15103,15116] [2024-11-19 22:30:49,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 22:30:49,059 INFO L204 MainTranslator]: Completed translation [2024-11-19 22:30:49,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:49 WrapperNode [2024-11-19 22:30:49,060 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 22:30:49,062 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 22:30:49,063 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 22:30:49,063 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 22:30:49,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:49" (1/1) ... [2024-11-19 22:30:49,079 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:49" (1/1) ... [2024-11-19 22:30:49,119 INFO L138 Inliner]: procedures = 26, calls = 17, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 396 [2024-11-19 22:30:49,120 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 22:30:49,124 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 22:30:49,125 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 22:30:49,125 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 22:30:49,140 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:49" (1/1) ... [2024-11-19 22:30:49,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:49" (1/1) ... [2024-11-19 22:30:49,143 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:49" (1/1) ... [2024-11-19 22:30:49,154 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]. [2024-11-19 22:30:49,155 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:49" (1/1) ... [2024-11-19 22:30:49,155 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:49" (1/1) ... [2024-11-19 22:30:49,160 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:49" (1/1) ... [2024-11-19 22:30:49,164 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:49" (1/1) ... [2024-11-19 22:30:49,165 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:49" (1/1) ... [2024-11-19 22:30:49,167 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:49" (1/1) ... [2024-11-19 22:30:49,169 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 22:30:49,170 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 22:30:49,170 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 22:30:49,170 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 22:30:49,170 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:49" (1/1) ... [2024-11-19 22:30:49,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 22:30:49,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:30:49,196 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) [2024-11-19 22:30:49,217 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 [2024-11-19 22:30:49,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 22:30:49,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 22:30:49,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 22:30:49,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 22:30:49,352 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 22:30:49,354 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 22:30:49,791 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-19 22:30:49,792 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 22:30:49,805 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 22:30:49,806 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 22:30:49,806 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:30:49 BoogieIcfgContainer [2024-11-19 22:30:49,806 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 22:30:49,808 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 22:30:49,809 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 22:30:49,811 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 22:30:49,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:30:48" (1/3) ... [2024-11-19 22:30:49,812 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@747937 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:30:49, skipping insertion in model container [2024-11-19 22:30:49,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:30:49" (2/3) ... [2024-11-19 22:30:49,812 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@747937 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:30:49, skipping insertion in model container [2024-11-19 22:30:49,812 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:30:49" (3/3) ... [2024-11-19 22:30:49,817 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals.c [2024-11-19 22:30:49,831 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 22:30:49,831 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 22:30:49,895 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 22:30:49,902 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;@538987df, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 22:30:49,905 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 22:30:49,909 INFO L276 IsEmpty]: Start isEmpty. Operand has 100 states, 98 states have (on average 1.7653061224489797) internal successors, (173), 99 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:49,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-19 22:30:49,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:30:49,915 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] [2024-11-19 22:30:49,916 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:30:49,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:30:49,921 INFO L85 PathProgramCache]: Analyzing trace with hash -315338523, now seen corresponding path program 1 times [2024-11-19 22:30:49,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:30:49,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019500876] [2024-11-19 22:30:49,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:30:49,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:30:50,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:30:50,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:30:50,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:30:50,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019500876] [2024-11-19 22:30:50,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019500876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:30:50,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:30:50,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 22:30:50,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593985390] [2024-11-19 22:30:50,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:30:50,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 22:30:50,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:30:50,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 22:30:50,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 22:30:50,191 INFO L87 Difference]: Start difference. First operand has 100 states, 98 states have (on average 1.7653061224489797) internal successors, (173), 99 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:50,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:30:50,207 INFO L93 Difference]: Finished difference Result 151 states and 257 transitions. [2024-11-19 22:30:50,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 22:30:50,209 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2024-11-19 22:30:50,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:30:50,215 INFO L225 Difference]: With dead ends: 151 [2024-11-19 22:30:50,216 INFO L226 Difference]: Without dead ends: 96 [2024-11-19 22:30:50,218 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 22:30:50,220 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:30:50,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:30:50,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-19 22:30:50,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-19 22:30:50,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.7473684210526317) internal successors, (166), 95 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:50,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 166 transitions. [2024-11-19 22:30:50,256 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 166 transitions. Word has length 25 [2024-11-19 22:30:50,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:30:50,257 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 166 transitions. [2024-11-19 22:30:50,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:50,257 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 166 transitions. [2024-11-19 22:30:50,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-19 22:30:50,258 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:30:50,258 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] [2024-11-19 22:30:50,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 22:30:50,258 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:30:50,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:30:50,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1132986973, now seen corresponding path program 1 times [2024-11-19 22:30:50,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:30:50,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938135240] [2024-11-19 22:30:50,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:30:50,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:30:50,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:30:50,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:30:50,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:30:50,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938135240] [2024-11-19 22:30:50,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938135240] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:30:50,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:30:50,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:30:50,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583307127] [2024-11-19 22:30:50,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:30:50,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:30:50,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:30:50,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:30:50,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:30:50,585 INFO L87 Difference]: Start difference. First operand 96 states and 166 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:50,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:30:50,676 INFO L93 Difference]: Finished difference Result 150 states and 250 transitions. [2024-11-19 22:30:50,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 22:30:50,677 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2024-11-19 22:30:50,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:30:50,678 INFO L225 Difference]: With dead ends: 150 [2024-11-19 22:30:50,678 INFO L226 Difference]: Without dead ends: 96 [2024-11-19 22:30:50,678 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:30:50,679 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 0 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 611 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:30:50,679 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 611 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:30:50,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-19 22:30:50,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-19 22:30:50,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.3263157894736841) internal successors, (126), 95 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:50,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 126 transitions. [2024-11-19 22:30:50,688 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 126 transitions. Word has length 25 [2024-11-19 22:30:50,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:30:50,688 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 126 transitions. [2024-11-19 22:30:50,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:50,688 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 126 transitions. [2024-11-19 22:30:50,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-19 22:30:50,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:30:50,690 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:30:50,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 22:30:50,690 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:30:50,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:30:50,691 INFO L85 PathProgramCache]: Analyzing trace with hash 358389460, now seen corresponding path program 1 times [2024-11-19 22:30:50,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:30:50,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027771888] [2024-11-19 22:30:50,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:30:50,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:30:50,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:30:50,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:30:50,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:30:50,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027771888] [2024-11-19 22:30:50,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027771888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:30:50,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:30:50,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 22:30:50,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170436819] [2024-11-19 22:30:50,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:30:50,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 22:30:50,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:30:50,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 22:30:50,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-19 22:30:50,920 INFO L87 Difference]: Start difference. First operand 96 states and 126 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:51,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:30:51,278 INFO L93 Difference]: Finished difference Result 696 states and 1086 transitions. [2024-11-19 22:30:51,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 22:30:51,279 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-11-19 22:30:51,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:30:51,282 INFO L225 Difference]: With dead ends: 696 [2024-11-19 22:30:51,285 INFO L226 Difference]: Without dead ends: 646 [2024-11-19 22:30:51,285 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-19 22:30:51,287 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 1161 mSDsluCounter, 1783 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 1903 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:30:51,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 1903 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 22:30:51,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2024-11-19 22:30:51,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 144. [2024-11-19 22:30:51,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.4195804195804196) internal successors, (203), 143 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:51,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 203 transitions. [2024-11-19 22:30:51,314 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 203 transitions. Word has length 64 [2024-11-19 22:30:51,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:30:51,314 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 203 transitions. [2024-11-19 22:30:51,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 8 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:51,315 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 203 transitions. [2024-11-19 22:30:51,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-19 22:30:51,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:30:51,317 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:30:51,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 22:30:51,318 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:30:51,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:30:51,318 INFO L85 PathProgramCache]: Analyzing trace with hash -534313204, now seen corresponding path program 1 times [2024-11-19 22:30:51,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:30:51,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882752256] [2024-11-19 22:30:51,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:30:51,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:30:51,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:30:51,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:30:51,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:30:51,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882752256] [2024-11-19 22:30:51,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882752256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:30:51,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:30:51,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 22:30:51,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301073160] [2024-11-19 22:30:51,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:30:51,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 22:30:51,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:30:51,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 22:30:51,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-19 22:30:51,702 INFO L87 Difference]: Start difference. First operand 144 states and 203 transitions. Second operand has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:51,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:30:51,932 INFO L93 Difference]: Finished difference Result 244 states and 361 transitions. [2024-11-19 22:30:51,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 22:30:51,932 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-11-19 22:30:51,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:30:51,933 INFO L225 Difference]: With dead ends: 244 [2024-11-19 22:30:51,933 INFO L226 Difference]: Without dead ends: 146 [2024-11-19 22:30:51,934 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-19 22:30:51,934 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 376 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:30:51,935 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 501 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:30:51,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-19 22:30:51,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 144. [2024-11-19 22:30:51,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.4125874125874125) internal successors, (202), 143 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:51,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 202 transitions. [2024-11-19 22:30:51,951 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 202 transitions. Word has length 66 [2024-11-19 22:30:51,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:30:51,955 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 202 transitions. [2024-11-19 22:30:51,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:51,956 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 202 transitions. [2024-11-19 22:30:51,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-19 22:30:51,957 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:30:51,957 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:30:51,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 22:30:51,957 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:30:51,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:30:51,958 INFO L85 PathProgramCache]: Analyzing trace with hash -600806716, now seen corresponding path program 1 times [2024-11-19 22:30:51,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:30:51,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138817275] [2024-11-19 22:30:51,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:30:51,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:30:51,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:30:52,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:30:52,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:30:52,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138817275] [2024-11-19 22:30:52,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138817275] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:30:52,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:30:52,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:30:52,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205949589] [2024-11-19 22:30:52,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:30:52,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:30:52,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:30:52,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:30:52,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:30:52,041 INFO L87 Difference]: Start difference. First operand 144 states and 202 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:52,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:30:52,058 INFO L93 Difference]: Finished difference Result 329 states and 495 transitions. [2024-11-19 22:30:52,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:30:52,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-11-19 22:30:52,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:30:52,059 INFO L225 Difference]: With dead ends: 329 [2024-11-19 22:30:52,059 INFO L226 Difference]: Without dead ends: 231 [2024-11-19 22:30:52,060 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 [2024-11-19 22:30:52,060 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 53 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:30:52,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 195 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:30:52,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-11-19 22:30:52,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 227. [2024-11-19 22:30:52,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 226 states have (on average 1.4646017699115044) internal successors, (331), 226 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:52,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 331 transitions. [2024-11-19 22:30:52,071 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 331 transitions. Word has length 66 [2024-11-19 22:30:52,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:30:52,071 INFO L471 AbstractCegarLoop]: Abstraction has 227 states and 331 transitions. [2024-11-19 22:30:52,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:52,071 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 331 transitions. [2024-11-19 22:30:52,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-19 22:30:52,076 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:30:52,076 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:30:52,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 22:30:52,076 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:30:52,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:30:52,077 INFO L85 PathProgramCache]: Analyzing trace with hash 201436865, now seen corresponding path program 1 times [2024-11-19 22:30:52,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:30:52,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181959979] [2024-11-19 22:30:52,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:30:52,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:30:52,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:30:52,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:30:52,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:30:52,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181959979] [2024-11-19 22:30:52,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181959979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:30:52,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:30:52,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 22:30:52,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642582013] [2024-11-19 22:30:52,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:30:52,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 22:30:52,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:30:52,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 22:30:52,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:30:52,271 INFO L87 Difference]: Start difference. First operand 227 states and 331 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:52,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:30:52,293 INFO L93 Difference]: Finished difference Result 235 states and 340 transitions. [2024-11-19 22:30:52,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 22:30:52,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-11-19 22:30:52,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:30:52,296 INFO L225 Difference]: With dead ends: 235 [2024-11-19 22:30:52,296 INFO L226 Difference]: Without dead ends: 233 [2024-11-19 22:30:52,297 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 22:30:52,297 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 0 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 483 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:30:52,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 483 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:30:52,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2024-11-19 22:30:52,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2024-11-19 22:30:52,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 232 states have (on average 1.4482758620689655) internal successors, (336), 232 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:52,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 336 transitions. [2024-11-19 22:30:52,311 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 336 transitions. Word has length 67 [2024-11-19 22:30:52,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:30:52,312 INFO L471 AbstractCegarLoop]: Abstraction has 233 states and 336 transitions. [2024-11-19 22:30:52,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 5 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:52,315 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 336 transitions. [2024-11-19 22:30:52,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-19 22:30:52,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:30:52,317 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:30:52,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 22:30:52,317 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:30:52,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:30:52,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1971945076, now seen corresponding path program 1 times [2024-11-19 22:30:52,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:30:52,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720198564] [2024-11-19 22:30:52,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:30:52,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:30:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:30:52,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:30:52,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:30:52,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720198564] [2024-11-19 22:30:52,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720198564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:30:52,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:30:52,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:30:52,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476584705] [2024-11-19 22:30:52,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:30:52,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:30:52,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:30:52,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:30:52,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:30:52,397 INFO L87 Difference]: Start difference. First operand 233 states and 336 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:52,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:30:52,414 INFO L93 Difference]: Finished difference Result 591 states and 888 transitions. [2024-11-19 22:30:52,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:30:52,415 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-19 22:30:52,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:30:52,416 INFO L225 Difference]: With dead ends: 591 [2024-11-19 22:30:52,417 INFO L226 Difference]: Without dead ends: 404 [2024-11-19 22:30:52,418 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 [2024-11-19 22:30:52,419 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 68 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:30:52,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 268 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:30:52,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-11-19 22:30:52,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 402. [2024-11-19 22:30:52,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 401 states have (on average 1.4788029925187032) internal successors, (593), 401 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:52,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 593 transitions. [2024-11-19 22:30:52,433 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 593 transitions. Word has length 68 [2024-11-19 22:30:52,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:30:52,433 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 593 transitions. [2024-11-19 22:30:52,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:52,433 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 593 transitions. [2024-11-19 22:30:52,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-19 22:30:52,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:30:52,435 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:30:52,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 22:30:52,435 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:30:52,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:30:52,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1708088692, now seen corresponding path program 1 times [2024-11-19 22:30:52,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:30:52,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507911276] [2024-11-19 22:30:52,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:30:52,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:30:52,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:30:52,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:30:52,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:30:52,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507911276] [2024-11-19 22:30:52,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507911276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:30:52,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:30:52,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:30:52,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398210130] [2024-11-19 22:30:52,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:30:52,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:30:52,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:30:52,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:30:52,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:30:52,495 INFO L87 Difference]: Start difference. First operand 402 states and 593 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:52,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:30:52,514 INFO L93 Difference]: Finished difference Result 1082 states and 1631 transitions. [2024-11-19 22:30:52,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:30:52,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-19 22:30:52,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:30:52,517 INFO L225 Difference]: With dead ends: 1082 [2024-11-19 22:30:52,517 INFO L226 Difference]: Without dead ends: 726 [2024-11-19 22:30:52,518 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 [2024-11-19 22:30:52,519 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 66 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:30:52,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 270 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:30:52,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2024-11-19 22:30:52,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 724. [2024-11-19 22:30:52,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 723 states have (on average 1.4868603042876902) internal successors, (1075), 723 states have internal predecessors, (1075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:52,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1075 transitions. [2024-11-19 22:30:52,536 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1075 transitions. Word has length 68 [2024-11-19 22:30:52,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:30:52,536 INFO L471 AbstractCegarLoop]: Abstraction has 724 states and 1075 transitions. [2024-11-19 22:30:52,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:52,536 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1075 transitions. [2024-11-19 22:30:52,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-19 22:30:52,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:30:52,537 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:30:52,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 22:30:52,538 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:30:52,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:30:52,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1609671820, now seen corresponding path program 1 times [2024-11-19 22:30:52,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:30:52,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699575047] [2024-11-19 22:30:52,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:30:52,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:30:52,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:30:52,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:30:52,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:30:52,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699575047] [2024-11-19 22:30:52,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699575047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:30:52,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:30:52,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:30:52,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181077943] [2024-11-19 22:30:52,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:30:52,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:30:52,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:30:52,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:30:52,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:30:52,590 INFO L87 Difference]: Start difference. First operand 724 states and 1075 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:52,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:30:52,632 INFO L93 Difference]: Finished difference Result 2016 states and 3021 transitions. [2024-11-19 22:30:52,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:30:52,632 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-19 22:30:52,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:30:52,636 INFO L225 Difference]: With dead ends: 2016 [2024-11-19 22:30:52,637 INFO L226 Difference]: Without dead ends: 1338 [2024-11-19 22:30:52,637 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 [2024-11-19 22:30:52,639 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 62 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:30:52,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 266 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:30:52,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1338 states. [2024-11-19 22:30:52,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1338 to 1336. [2024-11-19 22:30:52,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1336 states, 1335 states have (on average 1.4794007490636705) internal successors, (1975), 1335 states have internal predecessors, (1975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:52,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1336 states to 1336 states and 1975 transitions. [2024-11-19 22:30:52,666 INFO L78 Accepts]: Start accepts. Automaton has 1336 states and 1975 transitions. Word has length 68 [2024-11-19 22:30:52,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:30:52,667 INFO L471 AbstractCegarLoop]: Abstraction has 1336 states and 1975 transitions. [2024-11-19 22:30:52,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:52,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1336 states and 1975 transitions. [2024-11-19 22:30:52,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-19 22:30:52,670 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:30:52,670 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:30:52,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 22:30:52,670 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:30:52,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:30:52,670 INFO L85 PathProgramCache]: Analyzing trace with hash -904362612, now seen corresponding path program 1 times [2024-11-19 22:30:52,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:30:52,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026521166] [2024-11-19 22:30:52,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:30:52,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:30:52,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:30:52,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:30:52,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:30:52,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026521166] [2024-11-19 22:30:52,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026521166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:30:52,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:30:52,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:30:52,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357194353] [2024-11-19 22:30:52,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:30:52,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:30:52,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:30:52,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:30:52,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:30:52,716 INFO L87 Difference]: Start difference. First operand 1336 states and 1975 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:52,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:30:52,767 INFO L93 Difference]: Finished difference Result 3788 states and 5609 transitions. [2024-11-19 22:30:52,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:30:52,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-19 22:30:52,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:30:52,778 INFO L225 Difference]: With dead ends: 3788 [2024-11-19 22:30:52,782 INFO L226 Difference]: Without dead ends: 2498 [2024-11-19 22:30:52,784 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 [2024-11-19 22:30:52,784 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 60 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:30:52,784 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 268 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:30:52,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2498 states. [2024-11-19 22:30:52,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2498 to 2496. [2024-11-19 22:30:52,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.4617234468937876) internal successors, (3647), 2495 states have internal predecessors, (3647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:52,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 3647 transitions. [2024-11-19 22:30:52,849 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 3647 transitions. Word has length 68 [2024-11-19 22:30:52,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:30:52,849 INFO L471 AbstractCegarLoop]: Abstraction has 2496 states and 3647 transitions. [2024-11-19 22:30:52,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:52,850 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 3647 transitions. [2024-11-19 22:30:52,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-19 22:30:52,850 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:30:52,850 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:30:52,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 22:30:52,850 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:30:52,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:30:52,851 INFO L85 PathProgramCache]: Analyzing trace with hash -469826676, now seen corresponding path program 1 times [2024-11-19 22:30:52,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:30:52,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644915471] [2024-11-19 22:30:52,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:30:52,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:30:52,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:30:52,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:30:52,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:30:52,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644915471] [2024-11-19 22:30:52,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644915471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:30:52,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:30:52,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:30:52,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247195158] [2024-11-19 22:30:52,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:30:52,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:30:52,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:30:52,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:30:52,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:30:52,890 INFO L87 Difference]: Start difference. First operand 2496 states and 3647 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:52,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:30:52,978 INFO L93 Difference]: Finished difference Result 7140 states and 10401 transitions. [2024-11-19 22:30:52,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:30:52,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2024-11-19 22:30:52,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:30:52,990 INFO L225 Difference]: With dead ends: 7140 [2024-11-19 22:30:52,990 INFO L226 Difference]: Without dead ends: 4690 [2024-11-19 22:30:52,992 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 [2024-11-19 22:30:52,992 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 64 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:30:52,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 272 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:30:52,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4690 states. [2024-11-19 22:30:53,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4690 to 4688. [2024-11-19 22:30:53,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4688 states, 4687 states have (on average 1.4369532750160017) internal successors, (6735), 4687 states have internal predecessors, (6735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:53,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4688 states to 4688 states and 6735 transitions. [2024-11-19 22:30:53,073 INFO L78 Accepts]: Start accepts. Automaton has 4688 states and 6735 transitions. Word has length 68 [2024-11-19 22:30:53,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:30:53,073 INFO L471 AbstractCegarLoop]: Abstraction has 4688 states and 6735 transitions. [2024-11-19 22:30:53,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:53,074 INFO L276 IsEmpty]: Start isEmpty. Operand 4688 states and 6735 transitions. [2024-11-19 22:30:53,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-19 22:30:53,074 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:30:53,074 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:30:53,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 22:30:53,075 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:30:53,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:30:53,075 INFO L85 PathProgramCache]: Analyzing trace with hash -697172697, now seen corresponding path program 1 times [2024-11-19 22:30:53,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:30:53,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858566828] [2024-11-19 22:30:53,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:30:53,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:30:53,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:30:53,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:30:53,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:30:53,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858566828] [2024-11-19 22:30:53,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858566828] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:30:53,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:30:53,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:30:53,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086525] [2024-11-19 22:30:53,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:30:53,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:30:53,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:30:53,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:30:53,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:30:53,113 INFO L87 Difference]: Start difference. First operand 4688 states and 6735 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:53,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:30:53,189 INFO L93 Difference]: Finished difference Result 9559 states and 13845 transitions. [2024-11-19 22:30:53,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:30:53,189 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-19 22:30:53,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:30:53,204 INFO L225 Difference]: With dead ends: 9559 [2024-11-19 22:30:53,205 INFO L226 Difference]: Without dead ends: 6932 [2024-11-19 22:30:53,209 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 [2024-11-19 22:30:53,209 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 67 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:30:53,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 269 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:30:53,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6932 states. [2024-11-19 22:30:53,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6932 to 6930. [2024-11-19 22:30:53,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6930 states, 6929 states have (on average 1.4294992062346659) internal successors, (9905), 6929 states have internal predecessors, (9905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:53,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6930 states to 6930 states and 9905 transitions. [2024-11-19 22:30:53,394 INFO L78 Accepts]: Start accepts. Automaton has 6930 states and 9905 transitions. Word has length 70 [2024-11-19 22:30:53,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:30:53,394 INFO L471 AbstractCegarLoop]: Abstraction has 6930 states and 9905 transitions. [2024-11-19 22:30:53,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:53,394 INFO L276 IsEmpty]: Start isEmpty. Operand 6930 states and 9905 transitions. [2024-11-19 22:30:53,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-19 22:30:53,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:30:53,396 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 22:30:53,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 22:30:53,396 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:30:53,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:30:53,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1093136202, now seen corresponding path program 1 times [2024-11-19 22:30:53,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:30:53,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136196071] [2024-11-19 22:30:53,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:30:53,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:30:53,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:30:53,519 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 22:30:53,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:30:53,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136196071] [2024-11-19 22:30:53,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136196071] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:30:53,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:30:53,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 22:30:53,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339984239] [2024-11-19 22:30:53,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:30:53,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 22:30:53,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:30:53,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 22:30:53,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 22:30:53,521 INFO L87 Difference]: Start difference. First operand 6930 states and 9905 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:54,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:30:54,176 INFO L93 Difference]: Finished difference Result 49664 states and 71032 transitions. [2024-11-19 22:30:54,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 22:30:54,176 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 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 89 [2024-11-19 22:30:54,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:30:54,254 INFO L225 Difference]: With dead ends: 49664 [2024-11-19 22:30:54,254 INFO L226 Difference]: Without dead ends: 42782 [2024-11-19 22:30:54,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-19 22:30:54,270 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 920 mSDsluCounter, 881 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 1084 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:30:54,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 1084 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:30:54,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42782 states. [2024-11-19 22:30:54,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42782 to 13810. [2024-11-19 22:30:54,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13810 states, 13809 states have (on average 1.4240712578752988) internal successors, (19665), 13809 states have internal predecessors, (19665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:54,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13810 states to 13810 states and 19665 transitions. [2024-11-19 22:30:54,778 INFO L78 Accepts]: Start accepts. Automaton has 13810 states and 19665 transitions. Word has length 89 [2024-11-19 22:30:54,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:30:54,778 INFO L471 AbstractCegarLoop]: Abstraction has 13810 states and 19665 transitions. [2024-11-19 22:30:54,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:54,779 INFO L276 IsEmpty]: Start isEmpty. Operand 13810 states and 19665 transitions. [2024-11-19 22:30:54,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-19 22:30:54,781 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:30:54,781 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 22:30:54,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 22:30:54,782 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:30:54,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:30:54,782 INFO L85 PathProgramCache]: Analyzing trace with hash 1356992586, now seen corresponding path program 1 times [2024-11-19 22:30:54,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:30:54,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182528750] [2024-11-19 22:30:54,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:30:54,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:30:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:30:54,939 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-19 22:30:54,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:30:54,939 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182528750] [2024-11-19 22:30:54,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182528750] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:30:54,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:30:54,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 22:30:54,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272038952] [2024-11-19 22:30:54,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:30:54,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 22:30:54,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:30:54,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 22:30:54,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 22:30:54,941 INFO L87 Difference]: Start difference. First operand 13810 states and 19665 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:55,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:30:55,722 INFO L93 Difference]: Finished difference Result 56544 states and 80792 transitions. [2024-11-19 22:30:55,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 22:30:55,723 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 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 89 [2024-11-19 22:30:55,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:30:55,858 INFO L225 Difference]: With dead ends: 56544 [2024-11-19 22:30:55,859 INFO L226 Difference]: Without dead ends: 49662 [2024-11-19 22:30:55,872 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-19 22:30:55,873 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 970 mSDsluCounter, 750 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:30:55,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 950 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 22:30:55,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49662 states. [2024-11-19 22:30:56,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49662 to 24146. [2024-11-19 22:30:56,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24146 states, 24145 states have (on average 1.417477738662249) internal successors, (34225), 24145 states have internal predecessors, (34225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:56,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24146 states to 24146 states and 34225 transitions. [2024-11-19 22:30:56,701 INFO L78 Accepts]: Start accepts. Automaton has 24146 states and 34225 transitions. Word has length 89 [2024-11-19 22:30:56,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:30:56,701 INFO L471 AbstractCegarLoop]: Abstraction has 24146 states and 34225 transitions. [2024-11-19 22:30:56,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:56,702 INFO L276 IsEmpty]: Start isEmpty. Operand 24146 states and 34225 transitions. [2024-11-19 22:30:56,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-19 22:30:56,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:30:56,709 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 22:30:56,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 22:30:56,710 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:30:56,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:30:56,710 INFO L85 PathProgramCache]: Analyzing trace with hash 379785802, now seen corresponding path program 1 times [2024-11-19 22:30:56,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:30:56,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669385564] [2024-11-19 22:30:56,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:30:56,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:30:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:30:56,977 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-19 22:30:56,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:30:56,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669385564] [2024-11-19 22:30:56,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669385564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:30:56,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:30:56,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 22:30:56,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102774424] [2024-11-19 22:30:56,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:30:56,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 22:30:56,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:30:56,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 22:30:56,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 22:30:56,979 INFO L87 Difference]: Start difference. First operand 24146 states and 34225 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:57,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:30:57,733 INFO L93 Difference]: Finished difference Result 63424 states and 90552 transitions. [2024-11-19 22:30:57,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 22:30:57,733 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 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 89 [2024-11-19 22:30:57,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:30:57,799 INFO L225 Difference]: With dead ends: 63424 [2024-11-19 22:30:57,799 INFO L226 Difference]: Without dead ends: 56542 [2024-11-19 22:30:57,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-19 22:30:57,811 INFO L432 NwaCegarLoop]: 197 mSDtfsCounter, 1043 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1043 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:30:57,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1043 Valid, 964 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:30:57,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56542 states. [2024-11-19 22:30:58,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56542 to 31026. [2024-11-19 22:30:58,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31026 states, 31025 states have (on average 1.4177276390008058) internal successors, (43985), 31025 states have internal predecessors, (43985), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:58,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31026 states to 31026 states and 43985 transitions. [2024-11-19 22:30:58,730 INFO L78 Accepts]: Start accepts. Automaton has 31026 states and 43985 transitions. Word has length 89 [2024-11-19 22:30:58,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:30:58,731 INFO L471 AbstractCegarLoop]: Abstraction has 31026 states and 43985 transitions. [2024-11-19 22:30:58,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:58,731 INFO L276 IsEmpty]: Start isEmpty. Operand 31026 states and 43985 transitions. [2024-11-19 22:30:58,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-19 22:30:58,734 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:30:58,734 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 22:30:58,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 22:30:58,734 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:30:58,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:30:58,735 INFO L85 PathProgramCache]: Analyzing trace with hash -2134248630, now seen corresponding path program 1 times [2024-11-19 22:30:58,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:30:58,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237722632] [2024-11-19 22:30:58,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:30:58,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:30:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:30:58,904 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 22:30:58,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:30:58,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237722632] [2024-11-19 22:30:58,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237722632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:30:58,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:30:58,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 22:30:58,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385129932] [2024-11-19 22:30:58,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:30:58,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 22:30:58,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:30:58,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 22:30:58,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 22:30:58,906 INFO L87 Difference]: Start difference. First operand 31026 states and 43985 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:30:59,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:30:59,878 INFO L93 Difference]: Finished difference Result 70304 states and 100312 transitions. [2024-11-19 22:30:59,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 22:30:59,878 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 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 89 [2024-11-19 22:30:59,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:30:59,965 INFO L225 Difference]: With dead ends: 70304 [2024-11-19 22:30:59,965 INFO L226 Difference]: Without dead ends: 63422 [2024-11-19 22:30:59,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-19 22:30:59,991 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 955 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 955 SdHoareTripleChecker+Valid, 992 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:30:59,991 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [955 Valid, 992 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:31:00,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63422 states. [2024-11-19 22:31:01,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63422 to 37906. [2024-11-19 22:31:01,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37906 states, 37905 states have (on average 1.4178868223189554) internal successors, (53745), 37905 states have internal predecessors, (53745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:01,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37906 states to 37906 states and 53745 transitions. [2024-11-19 22:31:01,275 INFO L78 Accepts]: Start accepts. Automaton has 37906 states and 53745 transitions. Word has length 89 [2024-11-19 22:31:01,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:01,276 INFO L471 AbstractCegarLoop]: Abstraction has 37906 states and 53745 transitions. [2024-11-19 22:31:01,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:01,276 INFO L276 IsEmpty]: Start isEmpty. Operand 37906 states and 53745 transitions. [2024-11-19 22:31:01,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-19 22:31:01,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:01,279 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 22:31:01,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 22:31:01,280 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:01,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:01,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1699712694, now seen corresponding path program 1 times [2024-11-19 22:31:01,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:01,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268323762] [2024-11-19 22:31:01,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:01,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:01,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:01,475 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-19 22:31:01,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:01,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268323762] [2024-11-19 22:31:01,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268323762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:31:01,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:31:01,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 22:31:01,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023459070] [2024-11-19 22:31:01,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:31:01,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 22:31:01,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:01,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 22:31:01,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 22:31:01,478 INFO L87 Difference]: Start difference. First operand 37906 states and 53745 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:02,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:02,582 INFO L93 Difference]: Finished difference Result 77184 states and 110072 transitions. [2024-11-19 22:31:02,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 22:31:02,582 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 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 89 [2024-11-19 22:31:02,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:02,669 INFO L225 Difference]: With dead ends: 77184 [2024-11-19 22:31:02,669 INFO L226 Difference]: Without dead ends: 70302 [2024-11-19 22:31:02,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-19 22:31:02,694 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 861 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 861 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:31:02,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [861 Valid, 1141 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:31:02,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70302 states. [2024-11-19 22:31:03,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70302 to 44786. [2024-11-19 22:31:03,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44786 states, 44785 states have (on average 1.4179970972423803) internal successors, (63505), 44785 states have internal predecessors, (63505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:03,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44786 states to 44786 states and 63505 transitions. [2024-11-19 22:31:03,848 INFO L78 Accepts]: Start accepts. Automaton has 44786 states and 63505 transitions. Word has length 89 [2024-11-19 22:31:03,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:03,848 INFO L471 AbstractCegarLoop]: Abstraction has 44786 states and 63505 transitions. [2024-11-19 22:31:03,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:03,848 INFO L276 IsEmpty]: Start isEmpty. Operand 44786 states and 63505 transitions. [2024-11-19 22:31:03,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-19 22:31:03,853 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:03,853 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 22:31:03,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 22:31:03,854 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:03,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:03,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1182669314, now seen corresponding path program 1 times [2024-11-19 22:31:03,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:03,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138731802] [2024-11-19 22:31:03,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:03,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:03,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:03,956 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:03,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:03,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138731802] [2024-11-19 22:31:03,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138731802] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:31:03,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:31:03,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:31:03,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103038759] [2024-11-19 22:31:03,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:31:03,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:31:03,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:03,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:31:03,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:31:03,958 INFO L87 Difference]: Start difference. First operand 44786 states and 63505 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:04,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:04,647 INFO L93 Difference]: Finished difference Result 76428 states and 108874 transitions. [2024-11-19 22:31:04,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:31:04,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2024-11-19 22:31:04,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:04,689 INFO L225 Difference]: With dead ends: 76428 [2024-11-19 22:31:04,690 INFO L226 Difference]: Without dead ends: 31690 [2024-11-19 22:31:04,728 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 [2024-11-19 22:31:04,729 INFO L432 NwaCegarLoop]: 174 mSDtfsCounter, 58 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:31:04,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 285 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:31:04,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31690 states. [2024-11-19 22:31:05,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31690 to 31688. [2024-11-19 22:31:05,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31688 states, 31687 states have (on average 1.4201091930444663) internal successors, (44999), 31687 states have internal predecessors, (44999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:05,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31688 states to 31688 states and 44999 transitions. [2024-11-19 22:31:05,538 INFO L78 Accepts]: Start accepts. Automaton has 31688 states and 44999 transitions. Word has length 91 [2024-11-19 22:31:05,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:05,539 INFO L471 AbstractCegarLoop]: Abstraction has 31688 states and 44999 transitions. [2024-11-19 22:31:05,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:05,539 INFO L276 IsEmpty]: Start isEmpty. Operand 31688 states and 44999 transitions. [2024-11-19 22:31:05,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-19 22:31:05,541 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:05,541 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 22:31:05,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 22:31:05,541 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:05,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:05,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1501629595, now seen corresponding path program 1 times [2024-11-19 22:31:05,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:05,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836137883] [2024-11-19 22:31:05,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:05,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:05,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:05,668 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 22:31:05,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:05,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836137883] [2024-11-19 22:31:05,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836137883] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:31:05,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:31:05,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 22:31:05,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468069850] [2024-11-19 22:31:05,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:31:05,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 22:31:05,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:05,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 22:31:05,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-19 22:31:05,671 INFO L87 Difference]: Start difference. First operand 31688 states and 44999 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:06,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:06,823 INFO L93 Difference]: Finished difference Result 60886 states and 86862 transitions. [2024-11-19 22:31:06,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 22:31:06,823 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 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 91 [2024-11-19 22:31:06,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:06,882 INFO L225 Difference]: With dead ends: 60886 [2024-11-19 22:31:06,883 INFO L226 Difference]: Without dead ends: 56020 [2024-11-19 22:31:06,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-19 22:31:06,891 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 928 mSDsluCounter, 1035 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 22:31:06,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [928 Valid, 1230 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 22:31:06,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56020 states. [2024-11-19 22:31:07,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56020 to 36552. [2024-11-19 22:31:07,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36552 states, 36551 states have (on average 1.4202347404995759) internal successors, (51911), 36551 states have internal predecessors, (51911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:08,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36552 states to 36552 states and 51911 transitions. [2024-11-19 22:31:08,005 INFO L78 Accepts]: Start accepts. Automaton has 36552 states and 51911 transitions. Word has length 91 [2024-11-19 22:31:08,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:08,006 INFO L471 AbstractCegarLoop]: Abstraction has 36552 states and 51911 transitions. [2024-11-19 22:31:08,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:08,006 INFO L276 IsEmpty]: Start isEmpty. Operand 36552 states and 51911 transitions. [2024-11-19 22:31:08,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-19 22:31:08,017 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:08,017 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:31:08,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 22:31:08,017 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:08,018 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:08,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1061565063, now seen corresponding path program 1 times [2024-11-19 22:31:08,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:08,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488869623] [2024-11-19 22:31:08,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:08,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:08,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:08,131 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:08,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:08,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488869623] [2024-11-19 22:31:08,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488869623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:31:08,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:31:08,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:31:08,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890122623] [2024-11-19 22:31:08,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:31:08,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:31:08,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:08,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:31:08,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:31:08,134 INFO L87 Difference]: Start difference. First operand 36552 states and 51911 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:08,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:08,669 INFO L93 Difference]: Finished difference Result 54796 states and 77833 transitions. [2024-11-19 22:31:08,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:31:08,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2024-11-19 22:31:08,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:08,687 INFO L225 Difference]: With dead ends: 54796 [2024-11-19 22:31:08,688 INFO L226 Difference]: Without dead ends: 18314 [2024-11-19 22:31:08,697 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 [2024-11-19 22:31:08,698 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 53 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:31:08,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 270 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:31:08,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18314 states. [2024-11-19 22:31:09,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18314 to 18312. [2024-11-19 22:31:09,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18312 states, 18311 states have (on average 1.4063131451040358) internal successors, (25751), 18311 states have internal predecessors, (25751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:09,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18312 states to 18312 states and 25751 transitions. [2024-11-19 22:31:09,043 INFO L78 Accepts]: Start accepts. Automaton has 18312 states and 25751 transitions. Word has length 92 [2024-11-19 22:31:09,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:09,043 INFO L471 AbstractCegarLoop]: Abstraction has 18312 states and 25751 transitions. [2024-11-19 22:31:09,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:09,043 INFO L276 IsEmpty]: Start isEmpty. Operand 18312 states and 25751 transitions. [2024-11-19 22:31:09,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-19 22:31:09,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:09,045 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:31:09,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 22:31:09,045 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:09,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:09,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1358904597, now seen corresponding path program 1 times [2024-11-19 22:31:09,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:09,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793665728] [2024-11-19 22:31:09,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:09,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:09,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:09,182 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:09,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:09,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793665728] [2024-11-19 22:31:09,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793665728] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:31:09,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:31:09,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:31:09,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991015300] [2024-11-19 22:31:09,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:31:09,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:31:09,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:09,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:31:09,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:31:09,184 INFO L87 Difference]: Start difference. First operand 18312 states and 25751 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:09,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:09,329 INFO L93 Difference]: Finished difference Result 27436 states and 38593 transitions. [2024-11-19 22:31:09,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:31:09,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2024-11-19 22:31:09,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:09,339 INFO L225 Difference]: With dead ends: 27436 [2024-11-19 22:31:09,339 INFO L226 Difference]: Without dead ends: 9194 [2024-11-19 22:31:09,350 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 [2024-11-19 22:31:09,351 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 50 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:31:09,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 255 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:31:09,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9194 states. [2024-11-19 22:31:09,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9194 to 9192. [2024-11-19 22:31:09,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9192 states, 9191 states have (on average 1.3916875204003918) internal successors, (12791), 9191 states have internal predecessors, (12791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:09,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9192 states to 9192 states and 12791 transitions. [2024-11-19 22:31:09,525 INFO L78 Accepts]: Start accepts. Automaton has 9192 states and 12791 transitions. Word has length 94 [2024-11-19 22:31:09,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:09,525 INFO L471 AbstractCegarLoop]: Abstraction has 9192 states and 12791 transitions. [2024-11-19 22:31:09,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 3 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:09,526 INFO L276 IsEmpty]: Start isEmpty. Operand 9192 states and 12791 transitions. [2024-11-19 22:31:09,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-19 22:31:09,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:09,527 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 22:31:09,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 22:31:09,528 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:09,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:09,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1035230941, now seen corresponding path program 1 times [2024-11-19 22:31:09,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:09,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945343887] [2024-11-19 22:31:09,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:09,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:09,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:09,587 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:09,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:09,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945343887] [2024-11-19 22:31:09,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945343887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:31:09,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:31:09,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:31:09,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56686344] [2024-11-19 22:31:09,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:31:09,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:31:09,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:09,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:31:09,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:31:09,589 INFO L87 Difference]: Start difference. First operand 9192 states and 12791 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:09,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:09,672 INFO L93 Difference]: Finished difference Result 13756 states and 19153 transitions. [2024-11-19 22:31:09,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:31:09,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2024-11-19 22:31:09,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:09,679 INFO L225 Difference]: With dead ends: 13756 [2024-11-19 22:31:09,679 INFO L226 Difference]: Without dead ends: 4634 [2024-11-19 22:31:09,684 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 [2024-11-19 22:31:09,685 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 47 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:31:09,686 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 240 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:31:09,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4634 states. [2024-11-19 22:31:09,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4634 to 4632. [2024-11-19 22:31:09,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4632 states, 4631 states have (on average 1.3757287842798531) internal successors, (6371), 4631 states have internal predecessors, (6371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:09,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4632 states to 4632 states and 6371 transitions. [2024-11-19 22:31:09,819 INFO L78 Accepts]: Start accepts. Automaton has 4632 states and 6371 transitions. Word has length 96 [2024-11-19 22:31:09,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:09,819 INFO L471 AbstractCegarLoop]: Abstraction has 4632 states and 6371 transitions. [2024-11-19 22:31:09,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:09,820 INFO L276 IsEmpty]: Start isEmpty. Operand 4632 states and 6371 transitions. [2024-11-19 22:31:09,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-19 22:31:09,821 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:09,821 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 22:31:09,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-19 22:31:09,821 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:09,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:09,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1914159439, now seen corresponding path program 1 times [2024-11-19 22:31:09,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:09,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103997563] [2024-11-19 22:31:09,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:09,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:09,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:09,908 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:09,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:09,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103997563] [2024-11-19 22:31:09,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103997563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:31:09,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:31:09,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:31:09,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817712760] [2024-11-19 22:31:09,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:31:09,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:31:09,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:09,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:31:09,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:31:09,910 INFO L87 Difference]: Start difference. First operand 4632 states and 6371 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:09,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:09,950 INFO L93 Difference]: Finished difference Result 6916 states and 9523 transitions. [2024-11-19 22:31:09,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:31:09,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2024-11-19 22:31:09,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:09,954 INFO L225 Difference]: With dead ends: 6916 [2024-11-19 22:31:09,954 INFO L226 Difference]: Without dead ends: 2354 [2024-11-19 22:31:09,957 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:31:09,957 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 44 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:31:09,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 225 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:31:09,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2354 states. [2024-11-19 22:31:09,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2354 to 2352. [2024-11-19 22:31:09,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2352 states, 2351 states have (on average 1.3572947681837515) internal successors, (3191), 2351 states have internal predecessors, (3191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:09,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2352 states to 2352 states and 3191 transitions. [2024-11-19 22:31:10,000 INFO L78 Accepts]: Start accepts. Automaton has 2352 states and 3191 transitions. Word has length 98 [2024-11-19 22:31:10,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:10,000 INFO L471 AbstractCegarLoop]: Abstraction has 2352 states and 3191 transitions. [2024-11-19 22:31:10,000 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:10,000 INFO L276 IsEmpty]: Start isEmpty. Operand 2352 states and 3191 transitions. [2024-11-19 22:31:10,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-19 22:31:10,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:10,002 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 22:31:10,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-19 22:31:10,002 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:10,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:10,002 INFO L85 PathProgramCache]: Analyzing trace with hash -489289151, now seen corresponding path program 1 times [2024-11-19 22:31:10,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:10,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503223082] [2024-11-19 22:31:10,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:10,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:10,070 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:10,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:10,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503223082] [2024-11-19 22:31:10,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503223082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 22:31:10,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 22:31:10,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 22:31:10,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388389185] [2024-11-19 22:31:10,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 22:31:10,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 22:31:10,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:10,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 22:31:10,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 22:31:10,072 INFO L87 Difference]: Start difference. First operand 2352 states and 3191 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:10,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:10,095 INFO L93 Difference]: Finished difference Result 3496 states and 4753 transitions. [2024-11-19 22:31:10,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 22:31:10,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2024-11-19 22:31:10,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:10,098 INFO L225 Difference]: With dead ends: 3496 [2024-11-19 22:31:10,098 INFO L226 Difference]: Without dead ends: 1214 [2024-11-19 22:31:10,099 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 [2024-11-19 22:31:10,099 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 41 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 22:31:10,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 210 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 22:31:10,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1214 states. [2024-11-19 22:31:10,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1214 to 1212. [2024-11-19 22:31:10,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1212 states, 1211 states have (on average 1.3344343517753923) internal successors, (1616), 1211 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:10,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1212 states to 1212 states and 1616 transitions. [2024-11-19 22:31:10,121 INFO L78 Accepts]: Start accepts. Automaton has 1212 states and 1616 transitions. Word has length 100 [2024-11-19 22:31:10,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:10,122 INFO L471 AbstractCegarLoop]: Abstraction has 1212 states and 1616 transitions. [2024-11-19 22:31:10,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:10,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1212 states and 1616 transitions. [2024-11-19 22:31:10,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-19 22:31:10,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:10,123 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 22:31:10,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-19 22:31:10,123 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:10,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:10,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1442686541, now seen corresponding path program 1 times [2024-11-19 22:31:10,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:10,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313946692] [2024-11-19 22:31:10,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:10,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:10,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:10,828 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:10,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:10,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313946692] [2024-11-19 22:31:10,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313946692] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:31:10,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178804428] [2024-11-19 22:31:10,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:10,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:31:10,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:31:10,834 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) [2024-11-19 22:31:10,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 22:31:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:10,987 INFO L255 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-19 22:31:10,993 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:31:11,246 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 22:31:11,246 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 22:31:11,449 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 22:31:11,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178804428] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 22:31:11,450 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 22:31:11,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 4] total 19 [2024-11-19 22:31:11,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462926912] [2024-11-19 22:31:11,450 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 22:31:11,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-19 22:31:11,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:11,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-19 22:31:11,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=291, Unknown=0, NotChecked=0, Total=342 [2024-11-19 22:31:11,452 INFO L87 Difference]: Start difference. First operand 1212 states and 1616 transitions. Second operand has 19 states, 19 states have (on average 15.263157894736842) internal successors, (290), 19 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:13,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:13,524 INFO L93 Difference]: Finished difference Result 8791 states and 11735 transitions. [2024-11-19 22:31:13,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-19 22:31:13,525 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 15.263157894736842) internal successors, (290), 19 states have internal predecessors, (290), 0 states have call successors, (0), 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 102 [2024-11-19 22:31:13,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:13,534 INFO L225 Difference]: With dead ends: 8791 [2024-11-19 22:31:13,538 INFO L226 Difference]: Without dead ends: 7649 [2024-11-19 22:31:13,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1099 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=699, Invalid=3083, Unknown=0, NotChecked=0, Total=3782 [2024-11-19 22:31:13,545 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 1902 mSDsluCounter, 992 mSDsCounter, 0 mSdLazyCounter, 1099 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1902 SdHoareTripleChecker+Valid, 1119 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 1099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 22:31:13,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1902 Valid, 1119 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 1099 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 22:31:13,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7649 states. [2024-11-19 22:31:13,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7649 to 7597. [2024-11-19 22:31:13,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7597 states, 7596 states have (on average 1.2844918378093733) internal successors, (9757), 7596 states have internal predecessors, (9757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:13,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7597 states to 7597 states and 9757 transitions. [2024-11-19 22:31:13,736 INFO L78 Accepts]: Start accepts. Automaton has 7597 states and 9757 transitions. Word has length 102 [2024-11-19 22:31:13,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:13,737 INFO L471 AbstractCegarLoop]: Abstraction has 7597 states and 9757 transitions. [2024-11-19 22:31:13,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 15.263157894736842) internal successors, (290), 19 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:13,737 INFO L276 IsEmpty]: Start isEmpty. Operand 7597 states and 9757 transitions. [2024-11-19 22:31:13,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-19 22:31:13,738 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:13,738 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 22:31:13,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 22:31:13,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-19 22:31:13,939 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:13,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:13,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1841782229, now seen corresponding path program 1 times [2024-11-19 22:31:13,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:13,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205600134] [2024-11-19 22:31:13,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:13,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:15,103 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:15,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:15,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205600134] [2024-11-19 22:31:15,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205600134] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:31:15,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1677944305] [2024-11-19 22:31:15,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:15,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:31:15,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:31:15,108 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) [2024-11-19 22:31:15,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 22:31:15,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:15,229 INFO L255 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-19 22:31:15,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:31:15,785 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:15,786 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 22:31:16,527 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:16,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1677944305] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 22:31:16,528 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 22:31:16,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-11-19 22:31:16,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132253786] [2024-11-19 22:31:16,528 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 22:31:16,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-19 22:31:16,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:16,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-19 22:31:16,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=662, Unknown=0, NotChecked=0, Total=756 [2024-11-19 22:31:16,530 INFO L87 Difference]: Start difference. First operand 7597 states and 9757 transitions. Second operand has 28 states, 28 states have (on average 9.857142857142858) internal successors, (276), 27 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:19,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:19,605 INFO L93 Difference]: Finished difference Result 41113 states and 53460 transitions. [2024-11-19 22:31:19,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-19 22:31:19,606 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 9.857142857142858) internal successors, (276), 27 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2024-11-19 22:31:19,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:19,661 INFO L225 Difference]: With dead ends: 41113 [2024-11-19 22:31:19,662 INFO L226 Difference]: Without dead ends: 33678 [2024-11-19 22:31:19,679 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1028 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=906, Invalid=3786, Unknown=0, NotChecked=0, Total=4692 [2024-11-19 22:31:19,680 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 1887 mSDsluCounter, 1320 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1887 SdHoareTripleChecker+Valid, 1423 SdHoareTripleChecker+Invalid, 1258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 22:31:19,681 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1887 Valid, 1423 Invalid, 1258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 22:31:19,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33678 states. [2024-11-19 22:31:20,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33678 to 33322. [2024-11-19 22:31:20,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33322 states, 33321 states have (on average 1.272320758680712) internal successors, (42395), 33321 states have internal predecessors, (42395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:20,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33322 states to 33322 states and 42395 transitions. [2024-11-19 22:31:20,496 INFO L78 Accepts]: Start accepts. Automaton has 33322 states and 42395 transitions. Word has length 103 [2024-11-19 22:31:20,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:20,497 INFO L471 AbstractCegarLoop]: Abstraction has 33322 states and 42395 transitions. [2024-11-19 22:31:20,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.857142857142858) internal successors, (276), 27 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:20,501 INFO L276 IsEmpty]: Start isEmpty. Operand 33322 states and 42395 transitions. [2024-11-19 22:31:20,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-19 22:31:20,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:20,504 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 22:31:20,519 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 22:31:20,704 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,SelfDestructingSolverStorable25 [2024-11-19 22:31:20,705 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:20,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:20,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1920229931, now seen corresponding path program 1 times [2024-11-19 22:31:20,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:20,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228283178] [2024-11-19 22:31:20,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:20,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:20,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:21,106 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:21,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:21,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228283178] [2024-11-19 22:31:21,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228283178] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:31:21,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690085069] [2024-11-19 22:31:21,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:21,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:31:21,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:31:21,111 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) [2024-11-19 22:31:21,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 22:31:21,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:21,379 INFO L255 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 22:31:21,381 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:31:21,714 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:21,715 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 22:31:22,480 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:22,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690085069] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 22:31:22,482 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 22:31:22,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2024-11-19 22:31:22,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923577799] [2024-11-19 22:31:22,482 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 22:31:22,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-19 22:31:22,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:22,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-19 22:31:22,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2024-11-19 22:31:22,484 INFO L87 Difference]: Start difference. First operand 33322 states and 42395 transitions. Second operand has 21 states, 21 states have (on average 10.476190476190476) internal successors, (220), 20 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:23,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:23,928 INFO L93 Difference]: Finished difference Result 94138 states and 120006 transitions. [2024-11-19 22:31:23,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 22:31:23,929 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 10.476190476190476) internal successors, (220), 20 states have internal predecessors, (220), 0 states have call successors, (0), 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 103 [2024-11-19 22:31:23,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:23,994 INFO L225 Difference]: With dead ends: 94138 [2024-11-19 22:31:23,994 INFO L226 Difference]: Without dead ends: 63870 [2024-11-19 22:31:24,017 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2024-11-19 22:31:24,018 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 414 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 22:31:24,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 580 Invalid, 363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 22:31:24,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63870 states. [2024-11-19 22:31:25,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63870 to 63866. [2024-11-19 22:31:25,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63866 states, 63865 states have (on average 1.2680497925311203) internal successors, (80984), 63865 states have internal predecessors, (80984), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:25,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63866 states to 63866 states and 80984 transitions. [2024-11-19 22:31:25,866 INFO L78 Accepts]: Start accepts. Automaton has 63866 states and 80984 transitions. Word has length 103 [2024-11-19 22:31:25,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:25,867 INFO L471 AbstractCegarLoop]: Abstraction has 63866 states and 80984 transitions. [2024-11-19 22:31:25,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 10.476190476190476) internal successors, (220), 20 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:25,867 INFO L276 IsEmpty]: Start isEmpty. Operand 63866 states and 80984 transitions. [2024-11-19 22:31:25,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-19 22:31:25,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:25,876 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 22:31:25,890 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 22:31:26,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:31:26,077 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:26,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:26,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1335552731, now seen corresponding path program 1 times [2024-11-19 22:31:26,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:26,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878028203] [2024-11-19 22:31:26,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:26,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:26,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:27,354 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:27,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:27,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878028203] [2024-11-19 22:31:27,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878028203] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:31:27,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953261737] [2024-11-19 22:31:27,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:27,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:31:27,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:31:27,364 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) [2024-11-19 22:31:27,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 22:31:27,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:27,471 INFO L255 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 22:31:27,473 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:31:27,894 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:27,894 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 22:31:28,549 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:28,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953261737] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 22:31:28,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 22:31:28,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 27 [2024-11-19 22:31:28,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079308924] [2024-11-19 22:31:28,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 22:31:28,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-19 22:31:28,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:28,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-19 22:31:28,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=658, Unknown=0, NotChecked=0, Total=756 [2024-11-19 22:31:28,553 INFO L87 Difference]: Start difference. First operand 63866 states and 80984 transitions. Second operand has 28 states, 28 states have (on average 9.535714285714286) internal successors, (267), 27 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:33,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:33,001 INFO L93 Difference]: Finished difference Result 183055 states and 233423 transitions. [2024-11-19 22:31:33,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-19 22:31:33,002 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 9.535714285714286) internal successors, (267), 27 states have internal predecessors, (267), 0 states have call successors, (0), 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 104 [2024-11-19 22:31:33,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:33,147 INFO L225 Difference]: With dead ends: 183055 [2024-11-19 22:31:33,148 INFO L226 Difference]: Without dead ends: 125201 [2024-11-19 22:31:33,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 724 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=692, Invalid=2614, Unknown=0, NotChecked=0, Total=3306 [2024-11-19 22:31:33,173 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 1524 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 1401 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1272 SdHoareTripleChecker+Invalid, 1437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 22:31:33,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1524 Valid, 1272 Invalid, 1437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1401 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 22:31:33,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125201 states. [2024-11-19 22:31:36,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125201 to 122631. [2024-11-19 22:31:36,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122631 states, 122630 states have (on average 1.255638913805757) internal successors, (153979), 122630 states have internal predecessors, (153979), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:37,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122631 states to 122631 states and 153979 transitions. [2024-11-19 22:31:37,215 INFO L78 Accepts]: Start accepts. Automaton has 122631 states and 153979 transitions. Word has length 104 [2024-11-19 22:31:37,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:37,215 INFO L471 AbstractCegarLoop]: Abstraction has 122631 states and 153979 transitions. [2024-11-19 22:31:37,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 9.535714285714286) internal successors, (267), 27 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:37,216 INFO L276 IsEmpty]: Start isEmpty. Operand 122631 states and 153979 transitions. [2024-11-19 22:31:37,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-19 22:31:37,218 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:37,219 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 22:31:37,229 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 22:31:37,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-19 22:31:37,420 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:37,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:37,420 INFO L85 PathProgramCache]: Analyzing trace with hash -153904091, now seen corresponding path program 1 times [2024-11-19 22:31:37,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:37,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731843428] [2024-11-19 22:31:37,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:37,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:37,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:37,778 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:37,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:37,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731843428] [2024-11-19 22:31:37,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731843428] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:31:37,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921458125] [2024-11-19 22:31:37,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:37,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:31:37,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:31:37,780 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 22:31:37,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 22:31:37,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:37,890 INFO L255 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 22:31:37,892 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:31:38,243 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:38,244 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 22:31:39,088 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:39,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921458125] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 22:31:39,088 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 22:31:39,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-19 22:31:39,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587499747] [2024-11-19 22:31:39,089 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 22:31:39,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-19 22:31:39,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:39,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-19 22:31:39,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=521, Unknown=0, NotChecked=0, Total=600 [2024-11-19 22:31:39,090 INFO L87 Difference]: Start difference. First operand 122631 states and 153979 transitions. Second operand has 25 states, 25 states have (on average 11.4) internal successors, (285), 24 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:44,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 22:31:44,264 INFO L93 Difference]: Finished difference Result 271349 states and 341918 transitions. [2024-11-19 22:31:44,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-19 22:31:44,265 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 11.4) internal successors, (285), 24 states have internal predecessors, (285), 0 states have call successors, (0), 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 104 [2024-11-19 22:31:44,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 22:31:44,527 INFO L225 Difference]: With dead ends: 271349 [2024-11-19 22:31:44,527 INFO L226 Difference]: Without dead ends: 151631 [2024-11-19 22:31:44,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=513, Invalid=1743, Unknown=0, NotChecked=0, Total=2256 [2024-11-19 22:31:44,599 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 1240 mSDsluCounter, 991 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1240 SdHoareTripleChecker+Valid, 1098 SdHoareTripleChecker+Invalid, 938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 22:31:44,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1240 Valid, 1098 Invalid, 938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 22:31:44,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151631 states. [2024-11-19 22:31:47,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151631 to 83374. [2024-11-19 22:31:47,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83374 states, 83373 states have (on average 1.2408933347726483) internal successors, (103457), 83373 states have internal predecessors, (103457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:48,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83374 states to 83374 states and 103457 transitions. [2024-11-19 22:31:48,136 INFO L78 Accepts]: Start accepts. Automaton has 83374 states and 103457 transitions. Word has length 104 [2024-11-19 22:31:48,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 22:31:48,137 INFO L471 AbstractCegarLoop]: Abstraction has 83374 states and 103457 transitions. [2024-11-19 22:31:48,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 11.4) internal successors, (285), 24 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 22:31:48,137 INFO L276 IsEmpty]: Start isEmpty. Operand 83374 states and 103457 transitions. [2024-11-19 22:31:48,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-19 22:31:48,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 22:31:48,139 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-19 22:31:48,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-19 22:31:48,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-19 22:31:48,344 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 22:31:48,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 22:31:48,344 INFO L85 PathProgramCache]: Analyzing trace with hash 594602005, now seen corresponding path program 1 times [2024-11-19 22:31:48,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 22:31:48,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876548325] [2024-11-19 22:31:48,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:48,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 22:31:48,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:48,653 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:48,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 22:31:48,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876548325] [2024-11-19 22:31:48,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876548325] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 22:31:48,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1783708502] [2024-11-19 22:31:48,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 22:31:48,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 22:31:48,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 22:31:48,656 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 22:31:48,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 22:31:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 22:31:48,778 INFO L255 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-19 22:31:48,781 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 22:31:49,641 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:49,642 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 22:31:50,485 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 22:31:50,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1783708502] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 22:31:50,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 22:31:50,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13, 13] total 32 [2024-11-19 22:31:50,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980815525] [2024-11-19 22:31:50,486 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 22:31:50,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-19 22:31:50,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 22:31:50,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-19 22:31:50,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=888, Unknown=0, NotChecked=0, Total=992 [2024-11-19 22:31:50,487 INFO L87 Difference]: Start difference. First operand 83374 states and 103457 transitions. Second operand has 32 states, 32 states have (on average 8.84375) internal successors, (283), 32 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)