./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem13_label52.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem13_label52.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 eceda023c7394c88c46221fb5ed6b67ae6e1976efca78e0b148b1f17e3b2b45b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 10:34:45,855 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 10:34:45,944 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 10:34:45,949 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 10:34:45,950 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 10:34:45,977 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 10:34:45,978 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 10:34:45,978 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 10:34:45,979 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 10:34:45,980 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 10:34:45,981 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 10:34:45,981 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 10:34:45,982 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 10:34:45,985 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 10:34:45,985 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 10:34:45,986 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 10:34:45,986 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 10:34:45,986 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 10:34:45,986 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 10:34:45,986 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 10:34:45,987 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 10:34:45,987 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 10:34:45,988 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 10:34:45,988 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 10:34:45,988 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 10:34:45,990 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 10:34:45,990 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 10:34:45,990 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 10:34:45,990 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 10:34:45,991 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 10:34:45,991 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 10:34:45,991 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 10:34:45,991 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 10:34:45,992 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 10:34:45,992 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 10:34:45,992 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 10:34:45,993 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 10:34:45,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 10:34:45,994 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 10:34:45,994 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 10:34:45,994 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 10:34:45,995 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 10:34:45,995 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eceda023c7394c88c46221fb5ed6b67ae6e1976efca78e0b148b1f17e3b2b45b [2024-11-18 10:34:46,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 10:34:46,267 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 10:34:46,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 10:34:46,271 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 10:34:46,272 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 10:34:46,273 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem13_label52.c [2024-11-18 10:34:47,759 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 10:34:48,203 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 10:34:48,204 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label52.c [2024-11-18 10:34:48,237 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74575d143/92aa9305828247a3b8d72dbbd5fd564c/FLAGe0b18fb90 [2024-11-18 10:34:48,302 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74575d143/92aa9305828247a3b8d72dbbd5fd564c [2024-11-18 10:34:48,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 10:34:48,310 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 10:34:48,311 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 10:34:48,311 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 10:34:48,324 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 10:34:48,325 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:34:48" (1/1) ... [2024-11-18 10:34:48,329 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aa13d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:34:48, skipping insertion in model container [2024-11-18 10:34:48,332 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:34:48" (1/1) ... [2024-11-18 10:34:48,465 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 10:34:48,755 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label52.c[9091,9104] [2024-11-18 10:34:49,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 10:34:49,611 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 10:34:49,638 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem13_label52.c[9091,9104] [2024-11-18 10:34:50,140 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 10:34:50,170 INFO L204 MainTranslator]: Completed translation [2024-11-18 10:34:50,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:34:50 WrapperNode [2024-11-18 10:34:50,171 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 10:34:50,172 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 10:34:50,172 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 10:34:50,172 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 10:34:50,179 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:34:50" (1/1) ... [2024-11-18 10:34:50,246 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:34:50" (1/1) ... [2024-11-18 10:34:50,880 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5587 [2024-11-18 10:34:50,881 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 10:34:50,881 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 10:34:50,882 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 10:34:50,882 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 10:34:50,893 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:34:50" (1/1) ... [2024-11-18 10:34:50,893 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:34:50" (1/1) ... [2024-11-18 10:34:51,015 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:34:50" (1/1) ... [2024-11-18 10:34:51,254 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]. [2024-11-18 10:34:51,255 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:34:50" (1/1) ... [2024-11-18 10:34:51,255 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:34:50" (1/1) ... [2024-11-18 10:34:51,571 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:34:50" (1/1) ... [2024-11-18 10:34:51,640 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:34:50" (1/1) ... [2024-11-18 10:34:51,715 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:34:50" (1/1) ... [2024-11-18 10:34:51,767 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:34:50" (1/1) ... [2024-11-18 10:34:51,842 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 10:34:51,843 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 10:34:51,844 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 10:34:51,844 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 10:34:51,845 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:34:50" (1/1) ... [2024-11-18 10:34:51,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 10:34:51,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:34:51,879 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) [2024-11-18 10:34:51,881 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 [2024-11-18 10:34:51,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 10:34:51,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 10:34:51,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 10:34:51,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 10:34:51,989 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 10:34:51,991 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 10:34:57,733 INFO L? ?]: Removed 738 outVars from TransFormulas that were not future-live. [2024-11-18 10:34:57,734 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 10:34:57,778 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 10:34:57,778 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 10:34:57,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:34:57 BoogieIcfgContainer [2024-11-18 10:34:57,779 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 10:34:57,781 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 10:34:57,781 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 10:34:57,785 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 10:34:57,785 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:34:48" (1/3) ... [2024-11-18 10:34:57,786 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73fb4b40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:34:57, skipping insertion in model container [2024-11-18 10:34:57,786 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:34:50" (2/3) ... [2024-11-18 10:34:57,787 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73fb4b40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:34:57, skipping insertion in model container [2024-11-18 10:34:57,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:34:57" (3/3) ... [2024-11-18 10:34:57,789 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label52.c [2024-11-18 10:34:57,805 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 10:34:57,805 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 10:34:57,898 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 10:34:57,905 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;@3b1557, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 10:34:57,905 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 10:34:57,915 INFO L276 IsEmpty]: Start isEmpty. Operand has 1098 states, 1096 states have (on average 1.8275547445255473) internal successors, (2003), 1097 states have internal predecessors, (2003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:34:57,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-18 10:34:57,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:34:57,925 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] [2024-11-18 10:34:57,926 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:34:57,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:34:57,932 INFO L85 PathProgramCache]: Analyzing trace with hash -107486446, now seen corresponding path program 1 times [2024-11-18 10:34:57,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:34:57,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [660917774] [2024-11-18 10:34:57,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:34:57,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:34:58,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:34:58,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:34:58,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:34:58,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [660917774] [2024-11-18 10:34:58,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [660917774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:34:58,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:34:58,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:34:58,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842857875] [2024-11-18 10:34:58,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:34:58,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:34:58,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:34:58,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:34:58,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:34:58,380 INFO L87 Difference]: Start difference. First operand has 1098 states, 1096 states have (on average 1.8275547445255473) internal successors, (2003), 1097 states have internal predecessors, (2003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 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) [2024-11-18 10:35:02,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:35:02,288 INFO L93 Difference]: Finished difference Result 3035 states and 5643 transitions. [2024-11-18 10:35:02,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:35:02,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 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 [2024-11-18 10:35:02,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:35:02,324 INFO L225 Difference]: With dead ends: 3035 [2024-11-18 10:35:02,325 INFO L226 Difference]: Without dead ends: 1873 [2024-11-18 10:35:02,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:35:02,340 INFO L432 NwaCegarLoop]: 991 mSDtfsCounter, 841 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 2505 mSolverCounterSat, 858 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 3363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 858 IncrementalHoareTripleChecker+Valid, 2505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-18 10:35:02,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 1145 Invalid, 3363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [858 Valid, 2505 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-18 10:35:02,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1873 states. [2024-11-18 10:35:02,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1873 to 1859. [2024-11-18 10:35:02,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1859 states, 1858 states have (on average 1.5441334768568353) internal successors, (2869), 1858 states have internal predecessors, (2869), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:02,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1859 states to 1859 states and 2869 transitions. [2024-11-18 10:35:02,493 INFO L78 Accepts]: Start accepts. Automaton has 1859 states and 2869 transitions. Word has length 64 [2024-11-18 10:35:02,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:35:02,494 INFO L471 AbstractCegarLoop]: Abstraction has 1859 states and 2869 transitions. [2024-11-18 10:35:02,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 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) [2024-11-18 10:35:02,495 INFO L276 IsEmpty]: Start isEmpty. Operand 1859 states and 2869 transitions. [2024-11-18 10:35:02,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-18 10:35:02,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:35:02,502 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:35:02,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 10:35:02,503 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:35:02,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:35:02,503 INFO L85 PathProgramCache]: Analyzing trace with hash 700651805, now seen corresponding path program 1 times [2024-11-18 10:35:02,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:35:02,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141771886] [2024-11-18 10:35:02,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:35:02,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:35:02,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:35:02,832 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:35:02,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:35:02,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141771886] [2024-11-18 10:35:02,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141771886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:35:02,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:35:02,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:35:02,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721576159] [2024-11-18 10:35:02,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:35:02,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:35:02,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:35:02,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:35:02,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:35:02,840 INFO L87 Difference]: Start difference. First operand 1859 states and 2869 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:06,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:35:06,745 INFO L93 Difference]: Finished difference Result 5317 states and 8229 transitions. [2024-11-18 10:35:06,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:35:06,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 0 states have call successors, (0), 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 136 [2024-11-18 10:35:06,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:35:06,759 INFO L225 Difference]: With dead ends: 5317 [2024-11-18 10:35:06,759 INFO L226 Difference]: Without dead ends: 3460 [2024-11-18 10:35:06,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:35:06,763 INFO L432 NwaCegarLoop]: 1039 mSDtfsCounter, 826 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 2402 mSolverCounterSat, 877 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 1192 SdHoareTripleChecker+Invalid, 3279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 877 IncrementalHoareTripleChecker+Valid, 2402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-18 10:35:06,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 1192 Invalid, 3279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [877 Valid, 2402 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-18 10:35:06,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3460 states. [2024-11-18 10:35:06,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3460 to 3459. [2024-11-18 10:35:06,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3459 states, 3458 states have (on average 1.3805668016194332) internal successors, (4774), 3458 states have internal predecessors, (4774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:06,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3459 states to 3459 states and 4774 transitions. [2024-11-18 10:35:06,826 INFO L78 Accepts]: Start accepts. Automaton has 3459 states and 4774 transitions. Word has length 136 [2024-11-18 10:35:06,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:35:06,827 INFO L471 AbstractCegarLoop]: Abstraction has 3459 states and 4774 transitions. [2024-11-18 10:35:06,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:06,827 INFO L276 IsEmpty]: Start isEmpty. Operand 3459 states and 4774 transitions. [2024-11-18 10:35:06,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-18 10:35:06,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:35:06,830 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 10:35:06,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 10:35:06,830 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:35:06,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:35:06,831 INFO L85 PathProgramCache]: Analyzing trace with hash 656195604, now seen corresponding path program 1 times [2024-11-18 10:35:06,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:35:06,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981580945] [2024-11-18 10:35:06,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:35:06,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:35:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:35:07,296 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:35:07,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:35:07,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981580945] [2024-11-18 10:35:07,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981580945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:35:07,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:35:07,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:35:07,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022679353] [2024-11-18 10:35:07,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:35:07,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 10:35:07,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:35:07,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 10:35:07,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:35:07,303 INFO L87 Difference]: Start difference. First operand 3459 states and 4774 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:11,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:35:11,900 INFO L93 Difference]: Finished difference Result 10870 states and 14768 transitions. [2024-11-18 10:35:11,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 10:35:11,900 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 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 150 [2024-11-18 10:35:11,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:35:11,926 INFO L225 Difference]: With dead ends: 10870 [2024-11-18 10:35:11,927 INFO L226 Difference]: Without dead ends: 7413 [2024-11-18 10:35:11,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 10:35:11,933 INFO L432 NwaCegarLoop]: 709 mSDtfsCounter, 2582 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 4117 mSolverCounterSat, 831 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2582 SdHoareTripleChecker+Valid, 1003 SdHoareTripleChecker+Invalid, 4948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 831 IncrementalHoareTripleChecker+Valid, 4117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-18 10:35:11,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2582 Valid, 1003 Invalid, 4948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [831 Valid, 4117 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-18 10:35:11,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7413 states. [2024-11-18 10:35:12,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7413 to 7412. [2024-11-18 10:35:12,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7412 states, 7411 states have (on average 1.2698691134799622) internal successors, (9411), 7411 states have internal predecessors, (9411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:12,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7412 states to 7412 states and 9411 transitions. [2024-11-18 10:35:12,086 INFO L78 Accepts]: Start accepts. Automaton has 7412 states and 9411 transitions. Word has length 150 [2024-11-18 10:35:12,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:35:12,087 INFO L471 AbstractCegarLoop]: Abstraction has 7412 states and 9411 transitions. [2024-11-18 10:35:12,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:12,088 INFO L276 IsEmpty]: Start isEmpty. Operand 7412 states and 9411 transitions. [2024-11-18 10:35:12,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-18 10:35:12,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:35:12,091 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-18 10:35:12,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 10:35:12,092 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:35:12,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:35:12,093 INFO L85 PathProgramCache]: Analyzing trace with hash 2018060010, now seen corresponding path program 1 times [2024-11-18 10:35:12,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:35:12,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171376219] [2024-11-18 10:35:12,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:35:12,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:35:12,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:35:12,389 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-18 10:35:12,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:35:12,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171376219] [2024-11-18 10:35:12,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171376219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:35:12,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:35:12,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:35:12,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766375504] [2024-11-18 10:35:12,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:35:12,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:35:12,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:35:12,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:35:12,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:35:12,396 INFO L87 Difference]: Start difference. First operand 7412 states and 9411 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:15,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:35:15,867 INFO L93 Difference]: Finished difference Result 20357 states and 26252 transitions. [2024-11-18 10:35:15,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:35:15,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 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 231 [2024-11-18 10:35:15,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:35:15,913 INFO L225 Difference]: With dead ends: 20357 [2024-11-18 10:35:15,914 INFO L226 Difference]: Without dead ends: 13734 [2024-11-18 10:35:15,930 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:35:15,932 INFO L432 NwaCegarLoop]: 851 mSDtfsCounter, 889 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2576 mSolverCounterSat, 747 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 889 SdHoareTripleChecker+Valid, 980 SdHoareTripleChecker+Invalid, 3323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 747 IncrementalHoareTripleChecker+Valid, 2576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-18 10:35:15,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [889 Valid, 980 Invalid, 3323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [747 Valid, 2576 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-18 10:35:15,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13734 states. [2024-11-18 10:35:16,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13734 to 12937. [2024-11-18 10:35:16,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12937 states, 12936 states have (on average 1.215213358070501) internal successors, (15720), 12936 states have internal predecessors, (15720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:16,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12937 states to 12937 states and 15720 transitions. [2024-11-18 10:35:16,196 INFO L78 Accepts]: Start accepts. Automaton has 12937 states and 15720 transitions. Word has length 231 [2024-11-18 10:35:16,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:35:16,198 INFO L471 AbstractCegarLoop]: Abstraction has 12937 states and 15720 transitions. [2024-11-18 10:35:16,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 2 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:16,198 INFO L276 IsEmpty]: Start isEmpty. Operand 12937 states and 15720 transitions. [2024-11-18 10:35:16,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-18 10:35:16,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:35:16,202 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:35:16,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 10:35:16,203 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:35:16,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:35:16,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1278701466, now seen corresponding path program 1 times [2024-11-18 10:35:16,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:35:16,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567837305] [2024-11-18 10:35:16,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:35:16,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:35:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:35:16,461 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 218 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 10:35:16,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:35:16,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567837305] [2024-11-18 10:35:16,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567837305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:35:16,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:35:16,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:35:16,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303665955] [2024-11-18 10:35:16,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:35:16,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:35:16,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:35:16,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:35:16,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:35:16,467 INFO L87 Difference]: Start difference. First operand 12937 states and 15720 transitions. Second operand has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:19,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:35:19,569 INFO L93 Difference]: Finished difference Result 31392 states and 39119 transitions. [2024-11-18 10:35:19,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:35:19,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 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 263 [2024-11-18 10:35:19,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:35:19,606 INFO L225 Difference]: With dead ends: 31392 [2024-11-18 10:35:19,606 INFO L226 Difference]: Without dead ends: 19244 [2024-11-18 10:35:19,622 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 [2024-11-18 10:35:19,624 INFO L432 NwaCegarLoop]: 809 mSDtfsCounter, 858 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 914 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 3295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 914 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-18 10:35:19,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [858 Valid, 926 Invalid, 3295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [914 Valid, 2381 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-18 10:35:19,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19244 states. [2024-11-18 10:35:19,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19244 to 18447. [2024-11-18 10:35:19,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18447 states, 18446 states have (on average 1.2024287108316165) internal successors, (22180), 18446 states have internal predecessors, (22180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:19,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18447 states to 18447 states and 22180 transitions. [2024-11-18 10:35:19,900 INFO L78 Accepts]: Start accepts. Automaton has 18447 states and 22180 transitions. Word has length 263 [2024-11-18 10:35:19,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:35:19,902 INFO L471 AbstractCegarLoop]: Abstraction has 18447 states and 22180 transitions. [2024-11-18 10:35:19,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.66666666666667) internal successors, (263), 3 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:19,903 INFO L276 IsEmpty]: Start isEmpty. Operand 18447 states and 22180 transitions. [2024-11-18 10:35:19,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2024-11-18 10:35:19,911 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:35:19,911 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:35:19,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 10:35:19,912 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:35:19,912 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:35:19,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1840688272, now seen corresponding path program 1 times [2024-11-18 10:35:19,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:35:19,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170782445] [2024-11-18 10:35:19,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:35:19,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:35:19,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:35:20,241 INFO L134 CoverageAnalysis]: Checked inductivity of 457 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-18 10:35:20,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:35:20,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170782445] [2024-11-18 10:35:20,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170782445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:35:20,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:35:20,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:35:20,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302524715] [2024-11-18 10:35:20,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:35:20,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:35:20,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:35:20,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:35:20,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:35:20,245 INFO L87 Difference]: Start difference. First operand 18447 states and 22180 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:24,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:35:24,108 INFO L93 Difference]: Finished difference Result 42412 states and 52037 transitions. [2024-11-18 10:35:24,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:35:24,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 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 352 [2024-11-18 10:35:24,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:35:24,278 INFO L225 Difference]: With dead ends: 42412 [2024-11-18 10:35:24,279 INFO L226 Difference]: Without dead ends: 24754 [2024-11-18 10:35:24,298 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 [2024-11-18 10:35:24,299 INFO L432 NwaCegarLoop]: 1796 mSDtfsCounter, 806 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 2542 mSolverCounterSat, 723 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 1947 SdHoareTripleChecker+Invalid, 3265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 723 IncrementalHoareTripleChecker+Valid, 2542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-18 10:35:24,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 1947 Invalid, 3265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [723 Valid, 2542 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-18 10:35:24,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24754 states. [2024-11-18 10:35:24,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24754 to 23962. [2024-11-18 10:35:24,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23962 states, 23961 states have (on average 1.1787070656483452) internal successors, (28243), 23961 states have internal predecessors, (28243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:24,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23962 states to 23962 states and 28243 transitions. [2024-11-18 10:35:24,607 INFO L78 Accepts]: Start accepts. Automaton has 23962 states and 28243 transitions. Word has length 352 [2024-11-18 10:35:24,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:35:24,610 INFO L471 AbstractCegarLoop]: Abstraction has 23962 states and 28243 transitions. [2024-11-18 10:35:24,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:24,611 INFO L276 IsEmpty]: Start isEmpty. Operand 23962 states and 28243 transitions. [2024-11-18 10:35:24,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2024-11-18 10:35:24,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:35:24,619 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:35:24,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 10:35:24,619 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:35:24,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:35:24,620 INFO L85 PathProgramCache]: Analyzing trace with hash 328763766, now seen corresponding path program 1 times [2024-11-18 10:35:24,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:35:24,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620239028] [2024-11-18 10:35:24,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:35:24,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:35:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:35:24,967 INFO L134 CoverageAnalysis]: Checked inductivity of 475 backedges. 413 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-18 10:35:24,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:35:24,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620239028] [2024-11-18 10:35:24,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620239028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:35:24,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:35:24,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:35:24,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209666753] [2024-11-18 10:35:24,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:35:24,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 10:35:24,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:35:24,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 10:35:24,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:35:24,971 INFO L87 Difference]: Start difference. First operand 23962 states and 28243 transitions. Second operand has 4 states, 4 states have (on average 75.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:30,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:35:30,796 INFO L93 Difference]: Finished difference Result 89064 states and 105284 transitions. [2024-11-18 10:35:30,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 10:35:30,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 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 361 [2024-11-18 10:35:30,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:35:30,897 INFO L225 Difference]: With dead ends: 89064 [2024-11-18 10:35:30,897 INFO L226 Difference]: Without dead ends: 65891 [2024-11-18 10:35:30,921 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 10:35:30,924 INFO L432 NwaCegarLoop]: 436 mSDtfsCounter, 1742 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 6025 mSolverCounterSat, 1213 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1742 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 7238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1213 IncrementalHoareTripleChecker+Valid, 6025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-18 10:35:30,924 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1742 Valid, 638 Invalid, 7238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1213 Valid, 6025 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-18 10:35:30,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65891 states. [2024-11-18 10:35:31,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65891 to 64189. [2024-11-18 10:35:31,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64189 states, 64188 states have (on average 1.1559325730666168) internal successors, (74197), 64188 states have internal predecessors, (74197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:31,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64189 states to 64189 states and 74197 transitions. [2024-11-18 10:35:31,672 INFO L78 Accepts]: Start accepts. Automaton has 64189 states and 74197 transitions. Word has length 361 [2024-11-18 10:35:31,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:35:31,673 INFO L471 AbstractCegarLoop]: Abstraction has 64189 states and 74197 transitions. [2024-11-18 10:35:31,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 3 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:31,674 INFO L276 IsEmpty]: Start isEmpty. Operand 64189 states and 74197 transitions. [2024-11-18 10:35:31,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2024-11-18 10:35:31,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:35:31,682 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:35:31,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 10:35:31,682 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:35:31,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:35:31,683 INFO L85 PathProgramCache]: Analyzing trace with hash -523227709, now seen corresponding path program 1 times [2024-11-18 10:35:31,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:35:31,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991707997] [2024-11-18 10:35:31,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:35:31,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:35:31,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:35:32,044 INFO L134 CoverageAnalysis]: Checked inductivity of 449 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2024-11-18 10:35:32,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:35:32,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991707997] [2024-11-18 10:35:32,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991707997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:35:32,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:35:32,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 10:35:32,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846814525] [2024-11-18 10:35:32,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:35:32,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:35:32,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:35:32,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:35:32,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:35:32,047 INFO L87 Difference]: Start difference. First operand 64189 states and 74197 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:35,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:35:35,402 INFO L93 Difference]: Finished difference Result 140992 states and 162393 transitions. [2024-11-18 10:35:35,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:35:35,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 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 361 [2024-11-18 10:35:35,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:35:35,509 INFO L225 Difference]: With dead ends: 140992 [2024-11-18 10:35:35,509 INFO L226 Difference]: Without dead ends: 77592 [2024-11-18 10:35:35,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:35:35,566 INFO L432 NwaCegarLoop]: 1019 mSDtfsCounter, 730 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 2705 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 2885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-18 10:35:35,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [730 Valid, 1199 Invalid, 2885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 2705 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-18 10:35:35,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77592 states. [2024-11-18 10:35:36,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77592 to 76794. [2024-11-18 10:35:36,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76794 states, 76793 states have (on average 1.1395830349120362) internal successors, (87512), 76793 states have internal predecessors, (87512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:36,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76794 states to 76794 states and 87512 transitions. [2024-11-18 10:35:36,789 INFO L78 Accepts]: Start accepts. Automaton has 76794 states and 87512 transitions. Word has length 361 [2024-11-18 10:35:36,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:35:36,790 INFO L471 AbstractCegarLoop]: Abstraction has 76794 states and 87512 transitions. [2024-11-18 10:35:36,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 2 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:36,790 INFO L276 IsEmpty]: Start isEmpty. Operand 76794 states and 87512 transitions. [2024-11-18 10:35:37,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-11-18 10:35:37,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:35:37,039 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:35:37,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 10:35:37,039 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:35:37,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:35:37,040 INFO L85 PathProgramCache]: Analyzing trace with hash 1820069785, now seen corresponding path program 1 times [2024-11-18 10:35:37,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:35:37,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689032557] [2024-11-18 10:35:37,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:35:37,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:35:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:35:38,999 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 292 proven. 113 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-18 10:35:39,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:35:39,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689032557] [2024-11-18 10:35:39,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689032557] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 10:35:39,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [767798488] [2024-11-18 10:35:39,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:35:39,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:35:39,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 10:35:39,003 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) [2024-11-18 10:35:39,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 10:35:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:35:39,188 INFO L255 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 10:35:39,208 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 10:35:39,450 INFO L134 CoverageAnalysis]: Checked inductivity of 467 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2024-11-18 10:35:39,451 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 10:35:39,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [767798488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:35:39,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 10:35:39,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-11-18 10:35:39,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511329035] [2024-11-18 10:35:39,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:35:39,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:35:39,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:35:39,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:35:39,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-18 10:35:39,453 INFO L87 Difference]: Start difference. First operand 76794 states and 87512 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:42,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:35:42,440 INFO L93 Difference]: Finished difference Result 152797 states and 174229 transitions. [2024-11-18 10:35:42,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:35:42,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 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 390 [2024-11-18 10:35:42,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:35:42,523 INFO L225 Difference]: With dead ends: 152797 [2024-11-18 10:35:42,524 INFO L226 Difference]: Without dead ends: 76792 [2024-11-18 10:35:42,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-18 10:35:42,566 INFO L432 NwaCegarLoop]: 1362 mSDtfsCounter, 1122 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 2466 mSolverCounterSat, 450 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 1443 SdHoareTripleChecker+Invalid, 2916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 450 IncrementalHoareTripleChecker+Valid, 2466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-18 10:35:42,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1122 Valid, 1443 Invalid, 2916 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [450 Valid, 2466 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-18 10:35:42,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76792 states. [2024-11-18 10:35:43,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76792 to 76004. [2024-11-18 10:35:43,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76004 states, 76003 states have (on average 1.1082325697669828) internal successors, (84229), 76003 states have internal predecessors, (84229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:43,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76004 states to 76004 states and 84229 transitions. [2024-11-18 10:35:43,698 INFO L78 Accepts]: Start accepts. Automaton has 76004 states and 84229 transitions. Word has length 390 [2024-11-18 10:35:43,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:35:43,699 INFO L471 AbstractCegarLoop]: Abstraction has 76004 states and 84229 transitions. [2024-11-18 10:35:43,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:43,699 INFO L276 IsEmpty]: Start isEmpty. Operand 76004 states and 84229 transitions. [2024-11-18 10:35:43,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2024-11-18 10:35:43,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:35:43,710 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:35:43,728 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 10:35:43,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 10:35:43,915 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:35:43,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:35:43,916 INFO L85 PathProgramCache]: Analyzing trace with hash 357739575, now seen corresponding path program 1 times [2024-11-18 10:35:43,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:35:43,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194047959] [2024-11-18 10:35:43,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:35:43,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:35:44,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:35:44,367 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 576 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-11-18 10:35:44,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:35:44,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194047959] [2024-11-18 10:35:44,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194047959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:35:44,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:35:44,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:35:44,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691667861] [2024-11-18 10:35:44,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:35:44,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:35:44,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:35:44,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:35:44,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:35:44,371 INFO L87 Difference]: Start difference. First operand 76004 states and 84229 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:48,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:35:48,417 INFO L93 Difference]: Finished difference Result 170117 states and 190568 transitions. [2024-11-18 10:35:48,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:35:48,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 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 420 [2024-11-18 10:35:48,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:35:48,537 INFO L225 Difference]: With dead ends: 170117 [2024-11-18 10:35:48,538 INFO L226 Difference]: Without dead ends: 94902 [2024-11-18 10:35:48,552 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 [2024-11-18 10:35:48,553 INFO L432 NwaCegarLoop]: 825 mSDtfsCounter, 903 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 2415 mSolverCounterSat, 944 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 3359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 944 IncrementalHoareTripleChecker+Valid, 2415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-18 10:35:48,553 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [903 Valid, 909 Invalid, 3359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [944 Valid, 2415 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-18 10:35:48,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94902 states. [2024-11-18 10:35:49,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94902 to 93310. [2024-11-18 10:35:49,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93310 states, 93309 states have (on average 1.1153157787566044) internal successors, (104069), 93309 states have internal predecessors, (104069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:49,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93310 states to 93310 states and 104069 transitions. [2024-11-18 10:35:49,714 INFO L78 Accepts]: Start accepts. Automaton has 93310 states and 104069 transitions. Word has length 420 [2024-11-18 10:35:49,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:35:49,715 INFO L471 AbstractCegarLoop]: Abstraction has 93310 states and 104069 transitions. [2024-11-18 10:35:49,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:49,715 INFO L276 IsEmpty]: Start isEmpty. Operand 93310 states and 104069 transitions. [2024-11-18 10:35:49,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2024-11-18 10:35:49,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:35:49,732 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-18 10:35:49,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 10:35:49,733 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:35:49,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:35:49,734 INFO L85 PathProgramCache]: Analyzing trace with hash -85367684, now seen corresponding path program 1 times [2024-11-18 10:35:49,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:35:49,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103242521] [2024-11-18 10:35:49,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:35:49,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:35:49,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:35:50,444 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 474 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-18 10:35:50,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:35:50,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103242521] [2024-11-18 10:35:50,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103242521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:35:50,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:35:50,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:35:50,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233776967] [2024-11-18 10:35:50,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:35:50,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:35:50,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:35:50,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:35:50,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:35:50,447 INFO L87 Difference]: Start difference. First operand 93310 states and 104069 transitions. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:53,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:35:53,922 INFO L93 Difference]: Finished difference Result 185840 states and 207365 transitions. [2024-11-18 10:35:53,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:35:53,923 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 458 [2024-11-18 10:35:53,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:35:54,025 INFO L225 Difference]: With dead ends: 185840 [2024-11-18 10:35:54,025 INFO L226 Difference]: Without dead ends: 93319 [2024-11-18 10:35:54,224 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 [2024-11-18 10:35:54,225 INFO L432 NwaCegarLoop]: 1717 mSDtfsCounter, 795 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 2506 mSolverCounterSat, 680 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 1867 SdHoareTripleChecker+Invalid, 3186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 680 IncrementalHoareTripleChecker+Valid, 2506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-18 10:35:54,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [795 Valid, 1867 Invalid, 3186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [680 Valid, 2506 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-18 10:35:54,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93319 states. [2024-11-18 10:35:55,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93319 to 93300. [2024-11-18 10:35:55,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93300 states, 93299 states have (on average 1.0810512438504165) internal successors, (100861), 93299 states have internal predecessors, (100861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:55,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93300 states to 93300 states and 100861 transitions. [2024-11-18 10:35:55,265 INFO L78 Accepts]: Start accepts. Automaton has 93300 states and 100861 transitions. Word has length 458 [2024-11-18 10:35:55,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:35:55,266 INFO L471 AbstractCegarLoop]: Abstraction has 93300 states and 100861 transitions. [2024-11-18 10:35:55,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:55,266 INFO L276 IsEmpty]: Start isEmpty. Operand 93300 states and 100861 transitions. [2024-11-18 10:35:55,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2024-11-18 10:35:55,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:35:55,285 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 10:35:55,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 10:35:55,285 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:35:55,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:35:55,286 INFO L85 PathProgramCache]: Analyzing trace with hash -428167132, now seen corresponding path program 1 times [2024-11-18 10:35:55,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:35:55,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702833708] [2024-11-18 10:35:55,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:35:55,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:35:55,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 10:35:55,915 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 424 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-18 10:35:55,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 10:35:55,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702833708] [2024-11-18 10:35:55,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702833708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 10:35:55,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 10:35:55,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 10:35:55,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906468983] [2024-11-18 10:35:55,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 10:35:55,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 10:35:55,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 10:35:55,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 10:35:55,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 10:35:55,917 INFO L87 Difference]: Start difference. First operand 93300 states and 100861 transitions. Second operand has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:35:59,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 10:35:59,142 INFO L93 Difference]: Finished difference Result 192871 states and 208133 transitions. [2024-11-18 10:35:59,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 10:35:59,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 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 486 [2024-11-18 10:35:59,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 10:35:59,274 INFO L225 Difference]: With dead ends: 192871 [2024-11-18 10:35:59,275 INFO L226 Difference]: Without dead ends: 99573 [2024-11-18 10:35:59,314 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 [2024-11-18 10:35:59,315 INFO L432 NwaCegarLoop]: 1493 mSDtfsCounter, 1023 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 2348 mSolverCounterSat, 589 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 1627 SdHoareTripleChecker+Invalid, 2937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 589 IncrementalHoareTripleChecker+Valid, 2348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-18 10:35:59,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1023 Valid, 1627 Invalid, 2937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [589 Valid, 2348 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-18 10:35:59,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99573 states. [2024-11-18 10:36:00,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99573 to 92482. [2024-11-18 10:36:00,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92482 states, 92481 states have (on average 1.0580659811204463) internal successors, (97851), 92481 states have internal predecessors, (97851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:36:00,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92482 states to 92482 states and 97851 transitions. [2024-11-18 10:36:00,601 INFO L78 Accepts]: Start accepts. Automaton has 92482 states and 97851 transitions. Word has length 486 [2024-11-18 10:36:00,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 10:36:00,602 INFO L471 AbstractCegarLoop]: Abstraction has 92482 states and 97851 transitions. [2024-11-18 10:36:00,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 141.66666666666666) internal successors, (425), 3 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 10:36:00,607 INFO L276 IsEmpty]: Start isEmpty. Operand 92482 states and 97851 transitions. [2024-11-18 10:36:00,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 495 [2024-11-18 10:36:00,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 10:36:00,645 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-18 10:36:00,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 10:36:00,646 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 10:36:00,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 10:36:00,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1065805810, now seen corresponding path program 1 times [2024-11-18 10:36:00,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 10:36:00,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646249116] [2024-11-18 10:36:00,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 10:36:00,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 10:36:00,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat