./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.UNBOUNDED.pals.c.v+nlh-reducer.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 b8f11c58bd911b111c6f04ca73beac7abb77a983b1f6790a335f756f9ecfba15 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 02:57:32,928 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 02:57:32,987 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 02:57:32,990 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 02:57:32,991 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 02:57:33,018 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 02:57:33,019 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 02:57:33,020 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 02:57:33,020 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 02:57:33,021 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 02:57:33,021 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 02:57:33,021 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 02:57:33,022 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 02:57:33,022 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 02:57:33,022 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 02:57:33,023 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 02:57:33,023 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 02:57:33,024 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 02:57:33,024 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 02:57:33,024 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 02:57:33,024 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 02:57:33,025 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 02:57:33,025 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 02:57:33,026 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 02:57:33,026 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 02:57:33,026 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 02:57:33,032 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 02:57:33,032 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 02:57:33,033 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 02:57:33,033 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 02:57:33,033 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 02:57:33,033 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 02:57:33,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:57:33,034 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 02:57:33,034 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 02:57:33,034 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 02:57:33,034 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 02:57:33,034 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 02:57:33,035 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 02:57:33,035 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 02:57:33,036 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 02:57:33,036 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 02:57:33,036 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8f11c58bd911b111c6f04ca73beac7abb77a983b1f6790a335f756f9ecfba15 [2024-11-22 02:57:33,317 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 02:57:33,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 02:57:33,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 02:57:33,347 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 02:57:33,348 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 02:57:33,349 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-22 02:57:34,776 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 02:57:35,025 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 02:57:35,026 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-22 02:57:35,041 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae15c0b86/a4d68f40dada417c9abcb6e4f596fdf5/FLAGa85646b29 [2024-11-22 02:57:35,365 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae15c0b86/a4d68f40dada417c9abcb6e4f596fdf5 [2024-11-22 02:57:35,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 02:57:35,369 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 02:57:35,370 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 02:57:35,370 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 02:57:35,376 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 02:57:35,377 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:57:35" (1/1) ... [2024-11-22 02:57:35,378 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a7bbe37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:35, skipping insertion in model container [2024-11-22 02:57:35,378 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:57:35" (1/1) ... [2024-11-22 02:57:35,436 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 02:57:35,728 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[10376,10389] [2024-11-22 02:57:35,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:57:35,830 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 02:57:35,935 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.7.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[10376,10389] [2024-11-22 02:57:35,979 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:57:36,004 INFO L204 MainTranslator]: Completed translation [2024-11-22 02:57:36,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:36 WrapperNode [2024-11-22 02:57:36,004 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 02:57:36,005 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 02:57:36,006 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 02:57:36,006 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 02:57:36,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:36" (1/1) ... [2024-11-22 02:57:36,027 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:36" (1/1) ... [2024-11-22 02:57:36,065 INFO L138 Inliner]: procedures = 27, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 902 [2024-11-22 02:57:36,065 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 02:57:36,066 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 02:57:36,066 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 02:57:36,066 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 02:57:36,077 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:36" (1/1) ... [2024-11-22 02:57:36,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:36" (1/1) ... [2024-11-22 02:57:36,085 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:36" (1/1) ... [2024-11-22 02:57:36,111 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]. [2024-11-22 02:57:36,112 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:36" (1/1) ... [2024-11-22 02:57:36,112 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:36" (1/1) ... [2024-11-22 02:57:36,124 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:36" (1/1) ... [2024-11-22 02:57:36,131 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:36" (1/1) ... [2024-11-22 02:57:36,134 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:36" (1/1) ... [2024-11-22 02:57:36,137 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:36" (1/1) ... [2024-11-22 02:57:36,142 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 02:57:36,143 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 02:57:36,143 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 02:57:36,143 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 02:57:36,144 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:36" (1/1) ... [2024-11-22 02:57:36,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:57:36,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:57:36,202 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) [2024-11-22 02:57:36,209 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 [2024-11-22 02:57:36,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 02:57:36,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 02:57:36,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 02:57:36,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 02:57:36,494 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 02:57:36,496 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 02:57:37,266 INFO L? ?]: Removed 102 outVars from TransFormulas that were not future-live. [2024-11-22 02:57:37,267 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 02:57:37,295 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 02:57:37,296 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 02:57:37,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:57:37 BoogieIcfgContainer [2024-11-22 02:57:37,298 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 02:57:37,300 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 02:57:37,300 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 02:57:37,304 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 02:57:37,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:57:35" (1/3) ... [2024-11-22 02:57:37,305 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50de149c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:57:37, skipping insertion in model container [2024-11-22 02:57:37,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:57:36" (2/3) ... [2024-11-22 02:57:37,305 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50de149c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:57:37, skipping insertion in model container [2024-11-22 02:57:37,305 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:57:37" (3/3) ... [2024-11-22 02:57:37,307 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.7.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2024-11-22 02:57:37,327 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 02:57:37,328 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 02:57:37,412 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 02:57:37,421 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;@546085e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 02:57:37,424 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 02:57:37,431 INFO L276 IsEmpty]: Start isEmpty. Operand has 201 states, 199 states have (on average 1.763819095477387) internal successors, (351), 200 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:37,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-22 02:57:37,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:57:37,446 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:57:37,448 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:57:37,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:57:37,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1361095482, now seen corresponding path program 1 times [2024-11-22 02:57:37,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:57:37,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140398464] [2024-11-22 02:57:37,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:57:37,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:57:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:57:38,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:57:38,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:57:38,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140398464] [2024-11-22 02:57:38,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140398464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:57:38,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:57:38,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 02:57:38,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115919332] [2024-11-22 02:57:38,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:57:38,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 02:57:38,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:57:38,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 02:57:38,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:57:38,500 INFO L87 Difference]: Start difference. First operand has 201 states, 199 states have (on average 1.763819095477387) internal successors, (351), 200 states have internal predecessors, (351), 0 states have call successors, (0), 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 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:39,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:57:39,287 INFO L93 Difference]: Finished difference Result 1440 states and 2328 transitions. [2024-11-22 02:57:39,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 02:57:39,290 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2024-11-22 02:57:39,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:57:39,316 INFO L225 Difference]: With dead ends: 1440 [2024-11-22 02:57:39,317 INFO L226 Difference]: Without dead ends: 1332 [2024-11-22 02:57:39,322 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2024-11-22 02:57:39,326 INFO L432 NwaCegarLoop]: 764 mSDtfsCounter, 2817 mSDsluCounter, 4939 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2817 SdHoareTripleChecker+Valid, 5703 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 02:57:39,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2817 Valid, 5703 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 02:57:39,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1332 states. [2024-11-22 02:57:39,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1332 to 303. [2024-11-22 02:57:39,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 302 states have (on average 1.4503311258278146) internal successors, (438), 302 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:39,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 438 transitions. [2024-11-22 02:57:39,412 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 438 transitions. Word has length 107 [2024-11-22 02:57:39,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:57:39,412 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 438 transitions. [2024-11-22 02:57:39,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.88888888888889) internal successors, (107), 9 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:39,413 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 438 transitions. [2024-11-22 02:57:39,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-22 02:57:39,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:57:39,415 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:57:39,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 02:57:39,416 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:57:39,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:57:39,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1847794712, now seen corresponding path program 1 times [2024-11-22 02:57:39,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:57:39,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472433809] [2024-11-22 02:57:39,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:57:39,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:57:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:57:39,826 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:57:39,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:57:39,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472433809] [2024-11-22 02:57:39,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472433809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:57:39,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:57:39,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 02:57:39,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707873174] [2024-11-22 02:57:39,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:57:39,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 02:57:39,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:57:39,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 02:57:39,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:57:39,833 INFO L87 Difference]: Start difference. First operand 303 states and 438 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:40,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:57:40,220 INFO L93 Difference]: Finished difference Result 1559 states and 2435 transitions. [2024-11-22 02:57:40,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:57:40,221 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-22 02:57:40,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:57:40,227 INFO L225 Difference]: With dead ends: 1559 [2024-11-22 02:57:40,228 INFO L226 Difference]: Without dead ends: 1399 [2024-11-22 02:57:40,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-22 02:57:40,230 INFO L432 NwaCegarLoop]: 733 mSDtfsCounter, 1949 mSDsluCounter, 2402 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1949 SdHoareTripleChecker+Valid, 3135 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:57:40,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1949 Valid, 3135 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:57:40,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1399 states. [2024-11-22 02:57:40,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1399 to 482. [2024-11-22 02:57:40,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 481 states have (on average 1.5051975051975053) internal successors, (724), 481 states have internal predecessors, (724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:40,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 724 transitions. [2024-11-22 02:57:40,263 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 724 transitions. Word has length 109 [2024-11-22 02:57:40,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:57:40,264 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 724 transitions. [2024-11-22 02:57:40,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:40,266 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 724 transitions. [2024-11-22 02:57:40,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-22 02:57:40,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:57:40,268 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:57:40,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 02:57:40,271 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:57:40,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:57:40,272 INFO L85 PathProgramCache]: Analyzing trace with hash 2013134268, now seen corresponding path program 1 times [2024-11-22 02:57:40,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:57:40,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045986501] [2024-11-22 02:57:40,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:57:40,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:57:40,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:57:40,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:57:40,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:57:40,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045986501] [2024-11-22 02:57:40,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045986501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:57:40,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:57:40,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 02:57:40,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737009075] [2024-11-22 02:57:40,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:57:40,616 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 02:57:40,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:57:40,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 02:57:40,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:57:40,618 INFO L87 Difference]: Start difference. First operand 482 states and 724 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:40,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:57:40,958 INFO L93 Difference]: Finished difference Result 1738 states and 2721 transitions. [2024-11-22 02:57:40,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:57:40,959 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-22 02:57:40,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:57:40,969 INFO L225 Difference]: With dead ends: 1738 [2024-11-22 02:57:40,969 INFO L226 Difference]: Without dead ends: 1578 [2024-11-22 02:57:40,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-22 02:57:40,974 INFO L432 NwaCegarLoop]: 616 mSDtfsCounter, 2229 mSDsluCounter, 2069 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2229 SdHoareTripleChecker+Valid, 2685 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:57:40,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2229 Valid, 2685 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 282 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:57:40,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1578 states. [2024-11-22 02:57:40,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1578 to 735. [2024-11-22 02:57:40,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 734 states have (on average 1.5367847411444142) internal successors, (1128), 734 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:41,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 1128 transitions. [2024-11-22 02:57:41,002 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 1128 transitions. Word has length 109 [2024-11-22 02:57:41,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:57:41,004 INFO L471 AbstractCegarLoop]: Abstraction has 735 states and 1128 transitions. [2024-11-22 02:57:41,004 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:41,004 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 1128 transitions. [2024-11-22 02:57:41,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-22 02:57:41,007 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:57:41,007 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:57:41,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 02:57:41,007 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:57:41,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:57:41,008 INFO L85 PathProgramCache]: Analyzing trace with hash 1500386704, now seen corresponding path program 1 times [2024-11-22 02:57:41,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:57:41,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782507019] [2024-11-22 02:57:41,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:57:41,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:57:41,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:57:41,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:57:41,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:57:41,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782507019] [2024-11-22 02:57:41,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782507019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:57:41,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:57:41,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 02:57:41,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053837964] [2024-11-22 02:57:41,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:57:41,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 02:57:41,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:57:41,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 02:57:41,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:57:41,343 INFO L87 Difference]: Start difference. First operand 735 states and 1128 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:41,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:57:41,623 INFO L93 Difference]: Finished difference Result 1907 states and 2991 transitions. [2024-11-22 02:57:41,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:57:41,624 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-22 02:57:41,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:57:41,630 INFO L225 Difference]: With dead ends: 1907 [2024-11-22 02:57:41,630 INFO L226 Difference]: Without dead ends: 1747 [2024-11-22 02:57:41,632 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-22 02:57:41,633 INFO L432 NwaCegarLoop]: 498 mSDtfsCounter, 2405 mSDsluCounter, 1822 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2405 SdHoareTripleChecker+Valid, 2320 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:57:41,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2405 Valid, 2320 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:57:41,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1747 states. [2024-11-22 02:57:41,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1747 to 899. [2024-11-22 02:57:41,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 899 states, 898 states have (on average 1.5478841870824054) internal successors, (1390), 898 states have internal predecessors, (1390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:41,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 899 states to 899 states and 1390 transitions. [2024-11-22 02:57:41,660 INFO L78 Accepts]: Start accepts. Automaton has 899 states and 1390 transitions. Word has length 109 [2024-11-22 02:57:41,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:57:41,661 INFO L471 AbstractCegarLoop]: Abstraction has 899 states and 1390 transitions. [2024-11-22 02:57:41,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:41,661 INFO L276 IsEmpty]: Start isEmpty. Operand 899 states and 1390 transitions. [2024-11-22 02:57:41,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-22 02:57:41,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:57:41,664 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:57:41,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 02:57:41,665 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:57:41,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:57:41,665 INFO L85 PathProgramCache]: Analyzing trace with hash -2131359206, now seen corresponding path program 1 times [2024-11-22 02:57:41,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:57:41,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84795273] [2024-11-22 02:57:41,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:57:41,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:57:41,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:57:41,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:57:41,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:57:41,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84795273] [2024-11-22 02:57:41,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84795273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:57:41,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:57:41,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 02:57:41,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93620393] [2024-11-22 02:57:41,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:57:41,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 02:57:41,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:57:41,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 02:57:41,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:57:41,955 INFO L87 Difference]: Start difference. First operand 899 states and 1390 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:42,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:57:42,189 INFO L93 Difference]: Finished difference Result 2066 states and 3245 transitions. [2024-11-22 02:57:42,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:57:42,190 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-22 02:57:42,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:57:42,198 INFO L225 Difference]: With dead ends: 2066 [2024-11-22 02:57:42,199 INFO L226 Difference]: Without dead ends: 1906 [2024-11-22 02:57:42,200 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-22 02:57:42,202 INFO L432 NwaCegarLoop]: 388 mSDtfsCounter, 2913 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2913 SdHoareTripleChecker+Valid, 2206 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:57:42,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2913 Valid, 2206 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:57:42,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states. [2024-11-22 02:57:42,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1058. [2024-11-22 02:57:42,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1058 states, 1057 states have (on average 1.555345316934721) internal successors, (1644), 1057 states have internal predecessors, (1644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:42,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1058 states to 1058 states and 1644 transitions. [2024-11-22 02:57:42,232 INFO L78 Accepts]: Start accepts. Automaton has 1058 states and 1644 transitions. Word has length 109 [2024-11-22 02:57:42,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:57:42,233 INFO L471 AbstractCegarLoop]: Abstraction has 1058 states and 1644 transitions. [2024-11-22 02:57:42,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:42,233 INFO L276 IsEmpty]: Start isEmpty. Operand 1058 states and 1644 transitions. [2024-11-22 02:57:42,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-22 02:57:42,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:57:42,234 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:57:42,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 02:57:42,235 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:57:42,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:57:42,236 INFO L85 PathProgramCache]: Analyzing trace with hash -983368864, now seen corresponding path program 1 times [2024-11-22 02:57:42,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:57:42,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122161239] [2024-11-22 02:57:42,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:57:42,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:57:42,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:57:42,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:57:42,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:57:42,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122161239] [2024-11-22 02:57:42,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122161239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:57:42,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:57:42,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:57:42,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291281342] [2024-11-22 02:57:42,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:57:42,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:57:42,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:57:42,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:57:42,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:57:42,355 INFO L87 Difference]: Start difference. First operand 1058 states and 1644 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:42,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:57:42,392 INFO L93 Difference]: Finished difference Result 2729 states and 4305 transitions. [2024-11-22 02:57:42,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:57:42,393 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-22 02:57:42,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:57:42,403 INFO L225 Difference]: With dead ends: 2729 [2024-11-22 02:57:42,404 INFO L226 Difference]: Without dead ends: 1858 [2024-11-22 02:57:42,405 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:57:42,407 INFO L432 NwaCegarLoop]: 381 mSDtfsCounter, 115 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:57:42,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 637 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:57:42,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1858 states. [2024-11-22 02:57:42,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1858 to 1834. [2024-11-22 02:57:42,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1834 states, 1833 states have (on average 1.55810147299509) internal successors, (2856), 1833 states have internal predecessors, (2856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:42,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1834 states to 1834 states and 2856 transitions. [2024-11-22 02:57:42,448 INFO L78 Accepts]: Start accepts. Automaton has 1834 states and 2856 transitions. Word has length 109 [2024-11-22 02:57:42,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:57:42,449 INFO L471 AbstractCegarLoop]: Abstraction has 1834 states and 2856 transitions. [2024-11-22 02:57:42,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:42,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1834 states and 2856 transitions. [2024-11-22 02:57:42,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-22 02:57:42,450 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:57:42,451 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:57:42,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 02:57:42,451 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:57:42,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:57:42,452 INFO L85 PathProgramCache]: Analyzing trace with hash -739291201, now seen corresponding path program 1 times [2024-11-22 02:57:42,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:57:42,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147183079] [2024-11-22 02:57:42,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:57:42,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:57:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:57:42,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:57:42,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:57:42,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147183079] [2024-11-22 02:57:42,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147183079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:57:42,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:57:42,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 02:57:42,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146685717] [2024-11-22 02:57:42,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:57:42,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 02:57:42,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:57:42,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 02:57:42,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:57:42,910 INFO L87 Difference]: Start difference. First operand 1834 states and 2856 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:43,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:57:43,325 INFO L93 Difference]: Finished difference Result 3483 states and 5462 transitions. [2024-11-22 02:57:43,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:57:43,325 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-22 02:57:43,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:57:43,332 INFO L225 Difference]: With dead ends: 3483 [2024-11-22 02:57:43,332 INFO L226 Difference]: Without dead ends: 1836 [2024-11-22 02:57:43,334 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-22 02:57:43,335 INFO L432 NwaCegarLoop]: 362 mSDtfsCounter, 1110 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 1328 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:57:43,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1110 Valid, 1328 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:57:43,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1836 states. [2024-11-22 02:57:43,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1836 to 1834. [2024-11-22 02:57:43,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1834 states, 1833 states have (on average 1.5548281505728314) internal successors, (2850), 1833 states have internal predecessors, (2850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:43,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1834 states to 1834 states and 2850 transitions. [2024-11-22 02:57:43,371 INFO L78 Accepts]: Start accepts. Automaton has 1834 states and 2850 transitions. Word has length 109 [2024-11-22 02:57:43,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:57:43,371 INFO L471 AbstractCegarLoop]: Abstraction has 1834 states and 2850 transitions. [2024-11-22 02:57:43,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:43,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1834 states and 2850 transitions. [2024-11-22 02:57:43,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-22 02:57:43,373 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:57:43,373 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:57:43,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 02:57:43,373 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:57:43,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:57:43,374 INFO L85 PathProgramCache]: Analyzing trace with hash 307798176, now seen corresponding path program 1 times [2024-11-22 02:57:43,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:57:43,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180713534] [2024-11-22 02:57:43,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:57:43,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:57:43,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:57:43,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:57:43,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:57:43,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180713534] [2024-11-22 02:57:43,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180713534] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:57:43,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:57:43,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 02:57:43,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055423099] [2024-11-22 02:57:43,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:57:43,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 02:57:43,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:57:43,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 02:57:43,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:57:43,620 INFO L87 Difference]: Start difference. First operand 1834 states and 2850 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:43,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:57:43,958 INFO L93 Difference]: Finished difference Result 3987 states and 6244 transitions. [2024-11-22 02:57:43,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:57:43,958 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-22 02:57:43,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:57:43,972 INFO L225 Difference]: With dead ends: 3987 [2024-11-22 02:57:43,972 INFO L226 Difference]: Without dead ends: 3686 [2024-11-22 02:57:43,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-22 02:57:43,975 INFO L432 NwaCegarLoop]: 490 mSDtfsCounter, 2206 mSDsluCounter, 2123 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2206 SdHoareTripleChecker+Valid, 2613 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:57:43,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2206 Valid, 2613 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:57:43,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3686 states. [2024-11-22 02:57:44,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3686 to 2133. [2024-11-22 02:57:44,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2133 states, 2132 states have (on average 1.5581613508442778) internal successors, (3322), 2132 states have internal predecessors, (3322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:44,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2133 states to 2133 states and 3322 transitions. [2024-11-22 02:57:44,052 INFO L78 Accepts]: Start accepts. Automaton has 2133 states and 3322 transitions. Word has length 109 [2024-11-22 02:57:44,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:57:44,053 INFO L471 AbstractCegarLoop]: Abstraction has 2133 states and 3322 transitions. [2024-11-22 02:57:44,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:44,053 INFO L276 IsEmpty]: Start isEmpty. Operand 2133 states and 3322 transitions. [2024-11-22 02:57:44,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-22 02:57:44,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:57:44,055 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:57:44,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 02:57:44,055 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:57:44,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:57:44,056 INFO L85 PathProgramCache]: Analyzing trace with hash -2133931794, now seen corresponding path program 1 times [2024-11-22 02:57:44,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:57:44,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765032057] [2024-11-22 02:57:44,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:57:44,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:57:44,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:57:44,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:57:44,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:57:44,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765032057] [2024-11-22 02:57:44,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765032057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:57:44,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:57:44,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 02:57:44,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418191139] [2024-11-22 02:57:44,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:57:44,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 02:57:44,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:57:44,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 02:57:44,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:57:44,286 INFO L87 Difference]: Start difference. First operand 2133 states and 3322 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:44,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:57:44,594 INFO L93 Difference]: Finished difference Result 4292 states and 6725 transitions. [2024-11-22 02:57:44,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:57:44,594 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-22 02:57:44,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:57:44,608 INFO L225 Difference]: With dead ends: 4292 [2024-11-22 02:57:44,608 INFO L226 Difference]: Without dead ends: 3991 [2024-11-22 02:57:44,610 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-22 02:57:44,611 INFO L432 NwaCegarLoop]: 507 mSDtfsCounter, 2156 mSDsluCounter, 2623 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2156 SdHoareTripleChecker+Valid, 3130 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:57:44,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2156 Valid, 3130 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:57:44,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3991 states. [2024-11-22 02:57:44,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3991 to 2443. [2024-11-22 02:57:44,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2443 states, 2442 states have (on average 1.5606060606060606) internal successors, (3811), 2442 states have internal predecessors, (3811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:44,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2443 states to 2443 states and 3811 transitions. [2024-11-22 02:57:44,683 INFO L78 Accepts]: Start accepts. Automaton has 2443 states and 3811 transitions. Word has length 109 [2024-11-22 02:57:44,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:57:44,684 INFO L471 AbstractCegarLoop]: Abstraction has 2443 states and 3811 transitions. [2024-11-22 02:57:44,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:44,684 INFO L276 IsEmpty]: Start isEmpty. Operand 2443 states and 3811 transitions. [2024-11-22 02:57:44,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-22 02:57:44,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:57:44,686 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:57:44,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 02:57:44,686 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:57:44,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:57:44,687 INFO L85 PathProgramCache]: Analyzing trace with hash 763996610, now seen corresponding path program 1 times [2024-11-22 02:57:44,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:57:44,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202381008] [2024-11-22 02:57:44,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:57:44,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:57:44,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:57:44,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:57:44,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:57:44,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202381008] [2024-11-22 02:57:44,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202381008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:57:44,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:57:44,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 02:57:44,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761150813] [2024-11-22 02:57:44,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:57:44,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 02:57:44,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:57:44,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 02:57:44,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:57:44,934 INFO L87 Difference]: Start difference. First operand 2443 states and 3811 transitions. Second operand has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:45,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:57:45,265 INFO L93 Difference]: Finished difference Result 4607 states and 7222 transitions. [2024-11-22 02:57:45,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:57:45,266 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2024-11-22 02:57:45,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:57:45,281 INFO L225 Difference]: With dead ends: 4607 [2024-11-22 02:57:45,281 INFO L226 Difference]: Without dead ends: 4306 [2024-11-22 02:57:45,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2024-11-22 02:57:45,283 INFO L432 NwaCegarLoop]: 422 mSDtfsCounter, 2332 mSDsluCounter, 2849 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2332 SdHoareTripleChecker+Valid, 3271 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:57:45,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2332 Valid, 3271 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:57:45,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4306 states. [2024-11-22 02:57:45,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4306 to 2763. [2024-11-22 02:57:45,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2762 states have (on average 1.562635771180304) internal successors, (4316), 2762 states have internal predecessors, (4316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:45,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 4316 transitions. [2024-11-22 02:57:45,366 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 4316 transitions. Word has length 109 [2024-11-22 02:57:45,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:57:45,367 INFO L471 AbstractCegarLoop]: Abstraction has 2763 states and 4316 transitions. [2024-11-22 02:57:45,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.11111111111111) internal successors, (109), 9 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:45,367 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 4316 transitions. [2024-11-22 02:57:45,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-22 02:57:45,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:57:45,368 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:57:45,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 02:57:45,368 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:57:45,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:57:45,369 INFO L85 PathProgramCache]: Analyzing trace with hash -186015446, now seen corresponding path program 1 times [2024-11-22 02:57:45,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:57:45,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613482403] [2024-11-22 02:57:45,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:57:45,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:57:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:57:45,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:57:45,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:57:45,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613482403] [2024-11-22 02:57:45,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613482403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:57:45,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:57:45,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:57:45,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808775270] [2024-11-22 02:57:45,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:57:45,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:57:45,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:57:45,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:57:45,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:57:45,512 INFO L87 Difference]: Start difference. First operand 2763 states and 4316 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:45,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:57:45,677 INFO L93 Difference]: Finished difference Result 5470 states and 8575 transitions. [2024-11-22 02:57:45,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:57:45,677 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 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 110 [2024-11-22 02:57:45,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:57:45,686 INFO L225 Difference]: With dead ends: 5470 [2024-11-22 02:57:45,687 INFO L226 Difference]: Without dead ends: 2763 [2024-11-22 02:57:45,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:57:45,693 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 743 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:57:45,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 150 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:57:45,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2024-11-22 02:57:45,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2763. [2024-11-22 02:57:45,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2762 states have (on average 1.5499637943519189) internal successors, (4281), 2762 states have internal predecessors, (4281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:45,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 4281 transitions. [2024-11-22 02:57:45,746 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 4281 transitions. Word has length 110 [2024-11-22 02:57:45,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:57:45,746 INFO L471 AbstractCegarLoop]: Abstraction has 2763 states and 4281 transitions. [2024-11-22 02:57:45,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 4 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:45,747 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 4281 transitions. [2024-11-22 02:57:45,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-22 02:57:45,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:57:45,748 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:57:45,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 02:57:45,749 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:57:45,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:57:45,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1618909482, now seen corresponding path program 1 times [2024-11-22 02:57:45,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:57:45,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591054621] [2024-11-22 02:57:45,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:57:45,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:57:45,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:57:45,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:57:45,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:57:45,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591054621] [2024-11-22 02:57:45,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591054621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:57:45,925 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:57:45,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:57:45,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949833494] [2024-11-22 02:57:45,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:57:45,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:57:45,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:57:45,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:57:45,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:57:45,927 INFO L87 Difference]: Start difference. First operand 2763 states and 4281 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:46,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:57:46,092 INFO L93 Difference]: Finished difference Result 5454 states and 8486 transitions. [2024-11-22 02:57:46,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:57:46,092 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2024-11-22 02:57:46,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:57:46,104 INFO L225 Difference]: With dead ends: 5454 [2024-11-22 02:57:46,106 INFO L226 Difference]: Without dead ends: 2763 [2024-11-22 02:57:46,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:57:46,110 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 692 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 692 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:57:46,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [692 Valid, 182 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:57:46,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2024-11-22 02:57:46,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2763. [2024-11-22 02:57:46,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2762 states have (on average 1.5372918175235337) internal successors, (4246), 2762 states have internal predecessors, (4246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:46,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 4246 transitions. [2024-11-22 02:57:46,160 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 4246 transitions. Word has length 111 [2024-11-22 02:57:46,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:57:46,160 INFO L471 AbstractCegarLoop]: Abstraction has 2763 states and 4246 transitions. [2024-11-22 02:57:46,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 4 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:46,161 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 4246 transitions. [2024-11-22 02:57:46,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-22 02:57:46,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:57:46,162 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:57:46,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 02:57:46,163 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:57:46,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:57:46,163 INFO L85 PathProgramCache]: Analyzing trace with hash -716601046, now seen corresponding path program 1 times [2024-11-22 02:57:46,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:57:46,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756528203] [2024-11-22 02:57:46,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:57:46,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:57:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:57:46,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:57:46,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:57:46,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756528203] [2024-11-22 02:57:46,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756528203] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:57:46,306 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:57:46,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:57:46,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867638594] [2024-11-22 02:57:46,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:57:46,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:57:46,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:57:46,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:57:46,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:57:46,307 INFO L87 Difference]: Start difference. First operand 2763 states and 4246 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:46,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:57:46,478 INFO L93 Difference]: Finished difference Result 5446 states and 8407 transitions. [2024-11-22 02:57:46,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:57:46,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2024-11-22 02:57:46,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:57:46,488 INFO L225 Difference]: With dead ends: 5446 [2024-11-22 02:57:46,490 INFO L226 Difference]: Without dead ends: 2763 [2024-11-22 02:57:46,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:57:46,495 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 664 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:57:46,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 202 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:57:46,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2024-11-22 02:57:46,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2763. [2024-11-22 02:57:46,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2762 states have (on average 1.5246198406951486) internal successors, (4211), 2762 states have internal predecessors, (4211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:46,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 4211 transitions. [2024-11-22 02:57:46,556 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 4211 transitions. Word has length 112 [2024-11-22 02:57:46,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:57:46,557 INFO L471 AbstractCegarLoop]: Abstraction has 2763 states and 4211 transitions. [2024-11-22 02:57:46,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 4 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:46,557 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 4211 transitions. [2024-11-22 02:57:46,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-22 02:57:46,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:57:46,559 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:57:46,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 02:57:46,559 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:57:46,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:57:46,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1447492906, now seen corresponding path program 1 times [2024-11-22 02:57:46,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:57:46,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376207882] [2024-11-22 02:57:46,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:57:46,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:57:46,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:57:46,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:57:46,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:57:46,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376207882] [2024-11-22 02:57:46,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376207882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:57:46,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:57:46,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:57:46,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507564866] [2024-11-22 02:57:46,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:57:46,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:57:46,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:57:46,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:57:46,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:57:46,759 INFO L87 Difference]: Start difference. First operand 2763 states and 4211 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:46,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:57:46,927 INFO L93 Difference]: Finished difference Result 5458 states and 8351 transitions. [2024-11-22 02:57:46,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:57:46,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2024-11-22 02:57:46,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:57:46,934 INFO L225 Difference]: With dead ends: 5458 [2024-11-22 02:57:46,934 INFO L226 Difference]: Without dead ends: 2763 [2024-11-22 02:57:46,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:57:46,939 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 691 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:57:46,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [691 Valid, 174 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:57:46,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2024-11-22 02:57:46,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2763. [2024-11-22 02:57:46,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2762 states have (on average 1.5119478638667632) internal successors, (4176), 2762 states have internal predecessors, (4176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:47,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 4176 transitions. [2024-11-22 02:57:47,001 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 4176 transitions. Word has length 113 [2024-11-22 02:57:47,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:57:47,002 INFO L471 AbstractCegarLoop]: Abstraction has 2763 states and 4176 transitions. [2024-11-22 02:57:47,002 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:47,003 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 4176 transitions. [2024-11-22 02:57:47,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-22 02:57:47,005 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:57:47,005 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:57:47,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 02:57:47,005 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:57:47,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:57:47,006 INFO L85 PathProgramCache]: Analyzing trace with hash 912210718, now seen corresponding path program 1 times [2024-11-22 02:57:47,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:57:47,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686211251] [2024-11-22 02:57:47,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:57:47,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:57:47,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:57:47,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:57:47,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:57:47,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686211251] [2024-11-22 02:57:47,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686211251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:57:47,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:57:47,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:57:47,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263852901] [2024-11-22 02:57:47,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:57:47,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:57:47,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:57:47,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:57:47,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:57:47,142 INFO L87 Difference]: Start difference. First operand 2763 states and 4176 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:47,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:57:47,292 INFO L93 Difference]: Finished difference Result 5466 states and 8291 transitions. [2024-11-22 02:57:47,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:57:47,292 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 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 114 [2024-11-22 02:57:47,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:57:47,297 INFO L225 Difference]: With dead ends: 5466 [2024-11-22 02:57:47,298 INFO L226 Difference]: Without dead ends: 2763 [2024-11-22 02:57:47,301 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:57:47,303 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 707 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:57:47,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 158 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:57:47,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2024-11-22 02:57:47,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2763. [2024-11-22 02:57:47,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2762 states have (on average 1.499275887038378) internal successors, (4141), 2762 states have internal predecessors, (4141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:47,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 4141 transitions. [2024-11-22 02:57:47,346 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 4141 transitions. Word has length 114 [2024-11-22 02:57:47,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:57:47,346 INFO L471 AbstractCegarLoop]: Abstraction has 2763 states and 4141 transitions. [2024-11-22 02:57:47,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:47,346 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 4141 transitions. [2024-11-22 02:57:47,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-11-22 02:57:47,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:57:47,348 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:57:47,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 02:57:47,348 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:57:47,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:57:47,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1260402774, now seen corresponding path program 1 times [2024-11-22 02:57:47,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:57:47,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681045161] [2024-11-22 02:57:47,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:57:47,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:57:47,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:57:47,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:57:47,506 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:57:47,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681045161] [2024-11-22 02:57:47,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681045161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:57:47,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:57:47,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:57:47,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737397882] [2024-11-22 02:57:47,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:57:47,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:57:47,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:57:47,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:57:47,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:57:47,509 INFO L87 Difference]: Start difference. First operand 2763 states and 4141 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:47,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:57:47,655 INFO L93 Difference]: Finished difference Result 5462 states and 8217 transitions. [2024-11-22 02:57:47,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:57:47,656 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 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 115 [2024-11-22 02:57:47,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:57:47,661 INFO L225 Difference]: With dead ends: 5462 [2024-11-22 02:57:47,661 INFO L226 Difference]: Without dead ends: 2763 [2024-11-22 02:57:47,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:57:47,665 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 689 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 689 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:57:47,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [689 Valid, 166 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:57:47,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2024-11-22 02:57:47,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2763. [2024-11-22 02:57:47,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2762 states have (on average 1.4866039102099928) internal successors, (4106), 2762 states have internal predecessors, (4106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:47,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 4106 transitions. [2024-11-22 02:57:47,710 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 4106 transitions. Word has length 115 [2024-11-22 02:57:47,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:57:47,711 INFO L471 AbstractCegarLoop]: Abstraction has 2763 states and 4106 transitions. [2024-11-22 02:57:47,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:47,711 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 4106 transitions. [2024-11-22 02:57:47,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-22 02:57:47,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:57:47,712 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:57:47,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 02:57:47,713 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:57:47,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:57:47,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1805227026, now seen corresponding path program 1 times [2024-11-22 02:57:47,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:57:47,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336458695] [2024-11-22 02:57:47,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:57:47,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:57:47,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:57:47,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:57:47,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:57:47,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336458695] [2024-11-22 02:57:47,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336458695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:57:47,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:57:47,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:57:47,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791077995] [2024-11-22 02:57:47,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:57:47,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:57:47,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:57:47,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:57:47,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:57:47,854 INFO L87 Difference]: Start difference. First operand 2763 states and 4106 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:48,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:57:48,000 INFO L93 Difference]: Finished difference Result 5450 states and 8135 transitions. [2024-11-22 02:57:48,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:57:48,001 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2024-11-22 02:57:48,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:57:48,006 INFO L225 Difference]: With dead ends: 5450 [2024-11-22 02:57:48,006 INFO L226 Difference]: Without dead ends: 2763 [2024-11-22 02:57:48,010 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:57:48,011 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 647 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:57:48,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 190 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:57:48,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2024-11-22 02:57:48,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2763. [2024-11-22 02:57:48,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2762 states have (on average 1.4739319333816074) internal successors, (4071), 2762 states have internal predecessors, (4071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:48,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 4071 transitions. [2024-11-22 02:57:48,058 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 4071 transitions. Word has length 116 [2024-11-22 02:57:48,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:57:48,058 INFO L471 AbstractCegarLoop]: Abstraction has 2763 states and 4071 transitions. [2024-11-22 02:57:48,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:48,059 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 4071 transitions. [2024-11-22 02:57:48,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-22 02:57:48,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:57:48,060 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:57:48,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 02:57:48,060 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:57:48,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:57:48,061 INFO L85 PathProgramCache]: Analyzing trace with hash 695724750, now seen corresponding path program 1 times [2024-11-22 02:57:48,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:57:48,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717721217] [2024-11-22 02:57:48,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:57:48,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:57:48,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:57:48,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:57:48,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:57:48,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717721217] [2024-11-22 02:57:48,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717721217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:57:48,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:57:48,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 02:57:48,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631139919] [2024-11-22 02:57:48,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:57:48,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 02:57:48,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:57:48,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 02:57:48,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-22 02:57:48,709 INFO L87 Difference]: Start difference. First operand 2763 states and 4071 transitions. Second operand has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:49,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:57:49,477 INFO L93 Difference]: Finished difference Result 8018 states and 11843 transitions. [2024-11-22 02:57:49,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 02:57:49,478 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2024-11-22 02:57:49,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:57:49,488 INFO L225 Difference]: With dead ends: 8018 [2024-11-22 02:57:49,489 INFO L226 Difference]: Without dead ends: 5437 [2024-11-22 02:57:49,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2024-11-22 02:57:49,494 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 1225 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1225 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 02:57:49,495 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1225 Valid, 862 Invalid, 803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 02:57:49,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5437 states. [2024-11-22 02:57:49,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5437 to 2763. [2024-11-22 02:57:49,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2763 states, 2762 states have (on average 1.4717595944967414) internal successors, (4065), 2762 states have internal predecessors, (4065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:49,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2763 states to 2763 states and 4065 transitions. [2024-11-22 02:57:49,557 INFO L78 Accepts]: Start accepts. Automaton has 2763 states and 4065 transitions. Word has length 117 [2024-11-22 02:57:49,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:57:49,558 INFO L471 AbstractCegarLoop]: Abstraction has 2763 states and 4065 transitions. [2024-11-22 02:57:49,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.0) internal successors, (117), 12 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:49,558 INFO L276 IsEmpty]: Start isEmpty. Operand 2763 states and 4065 transitions. [2024-11-22 02:57:49,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-22 02:57:49,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:57:49,560 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:57:49,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 02:57:49,560 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:57:49,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:57:49,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1187396198, now seen corresponding path program 1 times [2024-11-22 02:57:49,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:57:49,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508073849] [2024-11-22 02:57:49,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:57:49,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:57:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:57:50,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:57:50,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:57:50,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508073849] [2024-11-22 02:57:50,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508073849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:57:50,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:57:50,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-22 02:57:50,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232785026] [2024-11-22 02:57:50,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:57:50,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 02:57:50,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:57:50,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 02:57:50,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-22 02:57:50,135 INFO L87 Difference]: Start difference. First operand 2763 states and 4065 transitions. Second operand has 14 states, 14 states have (on average 8.428571428571429) internal successors, (118), 13 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:50,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:57:50,988 INFO L93 Difference]: Finished difference Result 8148 states and 11991 transitions. [2024-11-22 02:57:50,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 02:57:50,989 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.428571428571429) internal successors, (118), 13 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2024-11-22 02:57:50,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:57:50,999 INFO L225 Difference]: With dead ends: 8148 [2024-11-22 02:57:50,999 INFO L226 Difference]: Without dead ends: 5553 [2024-11-22 02:57:51,004 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2024-11-22 02:57:51,005 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 1336 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 946 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1336 SdHoareTripleChecker+Valid, 940 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 02:57:51,005 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1336 Valid, 940 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 946 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 02:57:51,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5553 states. [2024-11-22 02:57:51,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5553 to 2785. [2024-11-22 02:57:51,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2785 states, 2784 states have (on average 1.4701867816091954) internal successors, (4093), 2784 states have internal predecessors, (4093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:51,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 4093 transitions. [2024-11-22 02:57:51,100 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 4093 transitions. Word has length 118 [2024-11-22 02:57:51,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:57:51,101 INFO L471 AbstractCegarLoop]: Abstraction has 2785 states and 4093 transitions. [2024-11-22 02:57:51,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.428571428571429) internal successors, (118), 13 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:51,101 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 4093 transitions. [2024-11-22 02:57:51,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-22 02:57:51,103 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:57:51,103 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:57:51,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 02:57:51,104 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:57:51,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:57:51,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1287225056, now seen corresponding path program 1 times [2024-11-22 02:57:51,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:57:51,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904093892] [2024-11-22 02:57:51,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:57:51,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:57:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:57:51,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:57:51,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:57:51,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904093892] [2024-11-22 02:57:51,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904093892] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:57:51,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:57:51,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 02:57:51,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176645884] [2024-11-22 02:57:51,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:57:51,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 02:57:51,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:57:51,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 02:57:51,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:57:51,510 INFO L87 Difference]: Start difference. First operand 2785 states and 4093 transitions. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:51,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:57:51,940 INFO L93 Difference]: Finished difference Result 7981 states and 11807 transitions. [2024-11-22 02:57:51,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:57:51,941 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 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 118 [2024-11-22 02:57:51,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:57:51,951 INFO L225 Difference]: With dead ends: 7981 [2024-11-22 02:57:51,951 INFO L226 Difference]: Without dead ends: 5329 [2024-11-22 02:57:51,956 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2024-11-22 02:57:51,958 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 924 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 924 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 02:57:51,958 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [924 Valid, 645 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 02:57:51,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5329 states. [2024-11-22 02:57:52,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5329 to 2785. [2024-11-22 02:57:52,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2785 states, 2784 states have (on average 1.4698275862068966) internal successors, (4092), 2784 states have internal predecessors, (4092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:52,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 4092 transitions. [2024-11-22 02:57:52,030 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 4092 transitions. Word has length 118 [2024-11-22 02:57:52,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:57:52,030 INFO L471 AbstractCegarLoop]: Abstraction has 2785 states and 4092 transitions. [2024-11-22 02:57:52,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:52,030 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 4092 transitions. [2024-11-22 02:57:52,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-22 02:57:52,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:57:52,032 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:57:52,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 02:57:52,032 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:57:52,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:57:52,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1796469002, now seen corresponding path program 1 times [2024-11-22 02:57:52,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:57:52,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860957280] [2024-11-22 02:57:52,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:57:52,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:57:52,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:57:52,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:57:52,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:57:52,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860957280] [2024-11-22 02:57:52,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860957280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:57:52,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:57:52,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-22 02:57:52,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926927310] [2024-11-22 02:57:52,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:57:52,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 02:57:52,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:57:52,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 02:57:52,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-22 02:57:52,587 INFO L87 Difference]: Start difference. First operand 2785 states and 4092 transitions. Second operand has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:53,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:57:53,415 INFO L93 Difference]: Finished difference Result 8118 states and 11938 transitions. [2024-11-22 02:57:53,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 02:57:53,416 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2024-11-22 02:57:53,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:57:53,427 INFO L225 Difference]: With dead ends: 8118 [2024-11-22 02:57:53,427 INFO L226 Difference]: Without dead ends: 5568 [2024-11-22 02:57:53,432 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2024-11-22 02:57:53,433 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 1811 mSDsluCounter, 909 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1811 SdHoareTripleChecker+Valid, 1062 SdHoareTripleChecker+Invalid, 1055 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 02:57:53,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1811 Valid, 1062 Invalid, 1055 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 02:57:53,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5568 states. [2024-11-22 02:57:53,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5568 to 2836. [2024-11-22 02:57:53,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2836 states, 2835 states have (on average 1.4677248677248678) internal successors, (4161), 2835 states have internal predecessors, (4161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:53,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2836 states to 2836 states and 4161 transitions. [2024-11-22 02:57:53,500 INFO L78 Accepts]: Start accepts. Automaton has 2836 states and 4161 transitions. Word has length 119 [2024-11-22 02:57:53,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:57:53,501 INFO L471 AbstractCegarLoop]: Abstraction has 2836 states and 4161 transitions. [2024-11-22 02:57:53,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.5) internal successors, (119), 13 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:53,501 INFO L276 IsEmpty]: Start isEmpty. Operand 2836 states and 4161 transitions. [2024-11-22 02:57:53,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-22 02:57:53,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:57:53,503 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:57:53,503 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 02:57:53,503 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:57:53,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:57:53,504 INFO L85 PathProgramCache]: Analyzing trace with hash -26080566, now seen corresponding path program 1 times [2024-11-22 02:57:53,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:57:53,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809931419] [2024-11-22 02:57:53,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:57:53,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:57:53,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:57:53,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:57:53,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:57:53,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809931419] [2024-11-22 02:57:53,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809931419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:57:53,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:57:53,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 02:57:53,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189160034] [2024-11-22 02:57:53,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:57:53,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 02:57:53,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:57:53,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 02:57:53,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-22 02:57:53,914 INFO L87 Difference]: Start difference. First operand 2836 states and 4161 transitions. Second operand has 10 states, 10 states have (on average 11.9) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:54,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:57:54,455 INFO L93 Difference]: Finished difference Result 8051 states and 11860 transitions. [2024-11-22 02:57:54,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 02:57:54,455 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2024-11-22 02:57:54,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:57:54,466 INFO L225 Difference]: With dead ends: 8051 [2024-11-22 02:57:54,467 INFO L226 Difference]: Without dead ends: 5500 [2024-11-22 02:57:54,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-22 02:57:54,473 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 637 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 662 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 02:57:54,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [637 Valid, 771 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 662 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 02:57:54,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5500 states. [2024-11-22 02:57:54,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5500 to 2785. [2024-11-22 02:57:54,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2785 states, 2784 states have (on average 1.4673132183908046) internal successors, (4085), 2784 states have internal predecessors, (4085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:54,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 4085 transitions. [2024-11-22 02:57:54,535 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 4085 transitions. Word has length 119 [2024-11-22 02:57:54,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:57:54,535 INFO L471 AbstractCegarLoop]: Abstraction has 2785 states and 4085 transitions. [2024-11-22 02:57:54,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.9) internal successors, (119), 9 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:54,536 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 4085 transitions. [2024-11-22 02:57:54,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-22 02:57:54,537 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:57:54,537 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:57:54,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 02:57:54,538 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:57:54,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:57:54,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1714393757, now seen corresponding path program 1 times [2024-11-22 02:57:54,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:57:54,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713264751] [2024-11-22 02:57:54,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:57:54,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:57:54,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:57:55,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:57:55,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:57:55,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713264751] [2024-11-22 02:57:55,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713264751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:57:55,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:57:55,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-22 02:57:55,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536806377] [2024-11-22 02:57:55,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:57:55,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 02:57:55,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:57:55,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 02:57:55,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-22 02:57:55,064 INFO L87 Difference]: Start difference. First operand 2785 states and 4085 transitions. Second operand has 14 states, 14 states have (on average 8.571428571428571) internal successors, (120), 13 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:55,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:57:55,864 INFO L93 Difference]: Finished difference Result 8196 states and 12031 transitions. [2024-11-22 02:57:55,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 02:57:55,865 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.571428571428571) internal successors, (120), 13 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2024-11-22 02:57:55,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:57:55,874 INFO L225 Difference]: With dead ends: 8196 [2024-11-22 02:57:55,874 INFO L226 Difference]: Without dead ends: 5652 [2024-11-22 02:57:55,880 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2024-11-22 02:57:55,881 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 1665 mSDsluCounter, 902 mSDsCounter, 0 mSdLazyCounter, 1018 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1665 SdHoareTripleChecker+Valid, 1053 SdHoareTripleChecker+Invalid, 1029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1018 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 02:57:55,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1665 Valid, 1053 Invalid, 1029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1018 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 02:57:55,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5652 states. [2024-11-22 02:57:55,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5652 to 2876. [2024-11-22 02:57:55,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2876 states, 2875 states have (on average 1.4653913043478262) internal successors, (4213), 2875 states have internal predecessors, (4213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:55,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2876 states to 2876 states and 4213 transitions. [2024-11-22 02:57:55,950 INFO L78 Accepts]: Start accepts. Automaton has 2876 states and 4213 transitions. Word has length 120 [2024-11-22 02:57:55,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:57:55,950 INFO L471 AbstractCegarLoop]: Abstraction has 2876 states and 4213 transitions. [2024-11-22 02:57:55,950 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.571428571428571) internal successors, (120), 13 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:55,951 INFO L276 IsEmpty]: Start isEmpty. Operand 2876 states and 4213 transitions. [2024-11-22 02:57:55,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-22 02:57:55,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:57:55,952 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:57:55,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 02:57:55,953 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:57:55,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:57:55,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1849493053, now seen corresponding path program 1 times [2024-11-22 02:57:55,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:57:55,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13632637] [2024-11-22 02:57:55,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:57:55,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:57:56,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:57:56,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:57:56,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:57:56,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13632637] [2024-11-22 02:57:56,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13632637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:57:56,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:57:56,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 02:57:56,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773463760] [2024-11-22 02:57:56,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:57:56,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 02:57:56,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:57:56,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 02:57:56,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-22 02:57:56,658 INFO L87 Difference]: Start difference. First operand 2876 states and 4213 transitions. Second operand has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:58,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:57:58,082 INFO L93 Difference]: Finished difference Result 16286 states and 23987 transitions. [2024-11-22 02:57:58,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-22 02:57:58,083 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2024-11-22 02:57:58,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:57:58,112 INFO L225 Difference]: With dead ends: 16286 [2024-11-22 02:57:58,113 INFO L226 Difference]: Without dead ends: 13660 [2024-11-22 02:57:58,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=225, Invalid=645, Unknown=0, NotChecked=0, Total=870 [2024-11-22 02:57:58,126 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 2311 mSDsluCounter, 1298 mSDsCounter, 0 mSdLazyCounter, 1411 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2311 SdHoareTripleChecker+Valid, 1536 SdHoareTripleChecker+Invalid, 1446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:57:58,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2311 Valid, 1536 Invalid, 1446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1411 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-22 02:57:58,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13660 states. [2024-11-22 02:57:58,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13660 to 2882. [2024-11-22 02:57:58,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2882 states, 2881 states have (on average 1.463727872266574) internal successors, (4217), 2881 states have internal predecessors, (4217), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:58,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2882 states to 2882 states and 4217 transitions. [2024-11-22 02:57:58,236 INFO L78 Accepts]: Start accepts. Automaton has 2882 states and 4217 transitions. Word has length 120 [2024-11-22 02:57:58,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:57:58,237 INFO L471 AbstractCegarLoop]: Abstraction has 2882 states and 4217 transitions. [2024-11-22 02:57:58,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.23076923076923) internal successors, (120), 12 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:58,237 INFO L276 IsEmpty]: Start isEmpty. Operand 2882 states and 4217 transitions. [2024-11-22 02:57:58,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-22 02:57:58,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:57:58,239 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:57:58,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 02:57:58,239 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:57:58,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:57:58,240 INFO L85 PathProgramCache]: Analyzing trace with hash 2130590169, now seen corresponding path program 1 times [2024-11-22 02:57:58,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:57:58,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379405285] [2024-11-22 02:57:58,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:57:58,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:57:58,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:57:58,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:57:58,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:57:58,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379405285] [2024-11-22 02:57:58,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379405285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:57:58,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:57:58,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 02:57:58,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123052119] [2024-11-22 02:57:58,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:57:58,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 02:57:58,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:57:58,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 02:57:58,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-22 02:57:58,569 INFO L87 Difference]: Start difference. First operand 2882 states and 4217 transitions. Second operand has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:59,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:57:59,261 INFO L93 Difference]: Finished difference Result 8138 states and 11981 transitions. [2024-11-22 02:57:59,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 02:57:59,262 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2024-11-22 02:57:59,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:57:59,271 INFO L225 Difference]: With dead ends: 8138 [2024-11-22 02:57:59,271 INFO L226 Difference]: Without dead ends: 5481 [2024-11-22 02:57:59,274 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-22 02:57:59,275 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 800 mSDsluCounter, 884 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 800 SdHoareTripleChecker+Valid, 1110 SdHoareTripleChecker+Invalid, 986 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 02:57:59,275 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [800 Valid, 1110 Invalid, 986 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 02:57:59,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5481 states. [2024-11-22 02:57:59,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5481 to 2769. [2024-11-22 02:57:59,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2769 states, 2768 states have (on average 1.4664017341040463) internal successors, (4059), 2768 states have internal predecessors, (4059), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:59,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 4059 transitions. [2024-11-22 02:57:59,323 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 4059 transitions. Word has length 121 [2024-11-22 02:57:59,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:57:59,324 INFO L471 AbstractCegarLoop]: Abstraction has 2769 states and 4059 transitions. [2024-11-22 02:57:59,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:57:59,324 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 4059 transitions. [2024-11-22 02:57:59,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-22 02:57:59,325 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:57:59,325 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:57:59,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 02:57:59,326 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:57:59,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:57:59,326 INFO L85 PathProgramCache]: Analyzing trace with hash -768722828, now seen corresponding path program 1 times [2024-11-22 02:57:59,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:57:59,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169408372] [2024-11-22 02:57:59,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:57:59,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:57:59,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:57:59,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:57:59,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:57:59,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169408372] [2024-11-22 02:57:59,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169408372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:57:59,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:57:59,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 02:57:59,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078968552] [2024-11-22 02:57:59,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:57:59,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 02:57:59,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:57:59,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 02:57:59,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-22 02:57:59,613 INFO L87 Difference]: Start difference. First operand 2769 states and 4059 transitions. Second operand has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:00,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:58:00,167 INFO L93 Difference]: Finished difference Result 8069 states and 11881 transitions. [2024-11-22 02:58:00,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 02:58:00,168 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2024-11-22 02:58:00,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:58:00,178 INFO L225 Difference]: With dead ends: 8069 [2024-11-22 02:58:00,178 INFO L226 Difference]: Without dead ends: 5463 [2024-11-22 02:58:00,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-22 02:58:00,183 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 640 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 809 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 02:58:00,183 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [640 Valid, 809 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 02:58:00,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5463 states. [2024-11-22 02:58:00,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5463 to 2769. [2024-11-22 02:58:00,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2769 states, 2768 states have (on average 1.4645953757225434) internal successors, (4054), 2768 states have internal predecessors, (4054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:00,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 4054 transitions. [2024-11-22 02:58:00,232 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 4054 transitions. Word has length 121 [2024-11-22 02:58:00,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:58:00,232 INFO L471 AbstractCegarLoop]: Abstraction has 2769 states and 4054 transitions. [2024-11-22 02:58:00,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.1) internal successors, (121), 9 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:00,233 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 4054 transitions. [2024-11-22 02:58:00,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-22 02:58:00,234 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:58:00,234 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:58:00,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-22 02:58:00,235 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:58:00,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:58:00,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1051782329, now seen corresponding path program 1 times [2024-11-22 02:58:00,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:58:00,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913517997] [2024-11-22 02:58:00,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:58:00,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:58:00,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:58:00,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:58:00,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:58:00,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913517997] [2024-11-22 02:58:00,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913517997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:58:00,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:58:00,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 02:58:00,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369561048] [2024-11-22 02:58:00,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:58:00,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 02:58:00,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:58:00,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 02:58:00,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-22 02:58:00,871 INFO L87 Difference]: Start difference. First operand 2769 states and 4054 transitions. Second operand has 13 states, 13 states have (on average 9.384615384615385) internal successors, (122), 12 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:01,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:58:01,807 INFO L93 Difference]: Finished difference Result 14249 states and 20901 transitions. [2024-11-22 02:58:01,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-22 02:58:01,807 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.384615384615385) internal successors, (122), 12 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2024-11-22 02:58:01,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:58:01,831 INFO L225 Difference]: With dead ends: 14249 [2024-11-22 02:58:01,832 INFO L226 Difference]: Without dead ends: 11705 [2024-11-22 02:58:01,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=246, Invalid=746, Unknown=0, NotChecked=0, Total=992 [2024-11-22 02:58:01,839 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 3596 mSDsluCounter, 695 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3596 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 02:58:01,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3596 Valid, 838 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 02:58:01,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11705 states. [2024-11-22 02:58:01,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11705 to 2800. [2024-11-22 02:58:01,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2800 states, 2799 states have (on average 1.4623079671311183) internal successors, (4093), 2799 states have internal predecessors, (4093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:01,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2800 states to 2800 states and 4093 transitions. [2024-11-22 02:58:01,936 INFO L78 Accepts]: Start accepts. Automaton has 2800 states and 4093 transitions. Word has length 122 [2024-11-22 02:58:01,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:58:01,937 INFO L471 AbstractCegarLoop]: Abstraction has 2800 states and 4093 transitions. [2024-11-22 02:58:01,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.384615384615385) internal successors, (122), 12 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:01,937 INFO L276 IsEmpty]: Start isEmpty. Operand 2800 states and 4093 transitions. [2024-11-22 02:58:01,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-22 02:58:01,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:58:01,938 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:58:01,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-22 02:58:01,939 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:58:01,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:58:01,939 INFO L85 PathProgramCache]: Analyzing trace with hash 289868898, now seen corresponding path program 1 times [2024-11-22 02:58:01,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:58:01,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666282933] [2024-11-22 02:58:01,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:58:01,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:58:01,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:58:02,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:58:02,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:58:02,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666282933] [2024-11-22 02:58:02,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666282933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:58:02,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:58:02,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 02:58:02,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412840354] [2024-11-22 02:58:02,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:58:02,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 02:58:02,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:58:02,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 02:58:02,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-22 02:58:02,248 INFO L87 Difference]: Start difference. First operand 2800 states and 4093 transitions. Second operand has 10 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:02,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:58:02,869 INFO L93 Difference]: Finished difference Result 8056 states and 11845 transitions. [2024-11-22 02:58:02,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 02:58:02,870 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2024-11-22 02:58:02,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:58:02,878 INFO L225 Difference]: With dead ends: 8056 [2024-11-22 02:58:02,879 INFO L226 Difference]: Without dead ends: 5512 [2024-11-22 02:58:02,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-22 02:58:02,883 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 969 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 887 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 969 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 887 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 02:58:02,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [969 Valid, 1013 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 887 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 02:58:02,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5512 states. [2024-11-22 02:58:02,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5512 to 2793. [2024-11-22 02:58:02,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2793 states, 2792 states have (on average 1.4634670487106016) internal successors, (4086), 2792 states have internal predecessors, (4086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:02,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2793 states to 2793 states and 4086 transitions. [2024-11-22 02:58:02,941 INFO L78 Accepts]: Start accepts. Automaton has 2793 states and 4086 transitions. Word has length 123 [2024-11-22 02:58:02,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:58:02,941 INFO L471 AbstractCegarLoop]: Abstraction has 2793 states and 4086 transitions. [2024-11-22 02:58:02,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:02,942 INFO L276 IsEmpty]: Start isEmpty. Operand 2793 states and 4086 transitions. [2024-11-22 02:58:02,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-22 02:58:02,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:58:02,943 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:58:02,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-22 02:58:02,943 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:58:02,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:58:02,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1982702915, now seen corresponding path program 1 times [2024-11-22 02:58:02,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:58:02,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108022860] [2024-11-22 02:58:02,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:58:02,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:58:03,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:58:03,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:58:03,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:58:03,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108022860] [2024-11-22 02:58:03,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108022860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:58:03,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:58:03,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-22 02:58:03,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033071056] [2024-11-22 02:58:03,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:58:03,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 02:58:03,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:58:03,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 02:58:03,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-22 02:58:03,629 INFO L87 Difference]: Start difference. First operand 2793 states and 4086 transitions. Second operand has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 13 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:04,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:58:04,229 INFO L93 Difference]: Finished difference Result 6039 states and 8895 transitions. [2024-11-22 02:58:04,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 02:58:04,230 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 13 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2024-11-22 02:58:04,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:58:04,235 INFO L225 Difference]: With dead ends: 6039 [2024-11-22 02:58:04,235 INFO L226 Difference]: Without dead ends: 5401 [2024-11-22 02:58:04,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-22 02:58:04,237 INFO L432 NwaCegarLoop]: 349 mSDtfsCounter, 928 mSDsluCounter, 1788 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 2137 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:58:04,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [928 Valid, 2137 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:58:04,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5401 states. [2024-11-22 02:58:04,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5401 to 2774. [2024-11-22 02:58:04,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2774 states, 2773 states have (on average 1.4626758023800939) internal successors, (4056), 2773 states have internal predecessors, (4056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:04,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2774 states to 2774 states and 4056 transitions. [2024-11-22 02:58:04,284 INFO L78 Accepts]: Start accepts. Automaton has 2774 states and 4056 transitions. Word has length 123 [2024-11-22 02:58:04,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:58:04,285 INFO L471 AbstractCegarLoop]: Abstraction has 2774 states and 4056 transitions. [2024-11-22 02:58:04,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 13 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:04,285 INFO L276 IsEmpty]: Start isEmpty. Operand 2774 states and 4056 transitions. [2024-11-22 02:58:04,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-22 02:58:04,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:58:04,286 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:58:04,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-22 02:58:04,286 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:58:04,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:58:04,287 INFO L85 PathProgramCache]: Analyzing trace with hash 676674274, now seen corresponding path program 1 times [2024-11-22 02:58:04,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:58:04,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715761508] [2024-11-22 02:58:04,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:58:04,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:58:04,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:58:05,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:58:05,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:58:05,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715761508] [2024-11-22 02:58:05,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715761508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:58:05,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:58:05,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-22 02:58:05,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309141076] [2024-11-22 02:58:05,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:58:05,071 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 02:58:05,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:58:05,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 02:58:05,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-22 02:58:05,072 INFO L87 Difference]: Start difference. First operand 2774 states and 4056 transitions. Second operand has 14 states, 14 states have (on average 8.785714285714286) internal successors, (123), 14 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:06,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:58:06,007 INFO L93 Difference]: Finished difference Result 11164 states and 16489 transitions. [2024-11-22 02:58:06,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-22 02:58:06,008 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.785714285714286) internal successors, (123), 14 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2024-11-22 02:58:06,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:58:06,022 INFO L225 Difference]: With dead ends: 11164 [2024-11-22 02:58:06,022 INFO L226 Difference]: Without dead ends: 10546 [2024-11-22 02:58:06,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=167, Invalid=535, Unknown=0, NotChecked=0, Total=702 [2024-11-22 02:58:06,026 INFO L432 NwaCegarLoop]: 583 mSDtfsCounter, 884 mSDsluCounter, 5079 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 5662 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 02:58:06,026 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 5662 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 02:58:06,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10546 states. [2024-11-22 02:58:06,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10546 to 2765. [2024-11-22 02:58:06,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2765 states, 2764 states have (on average 1.461287988422576) internal successors, (4039), 2764 states have internal predecessors, (4039), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:06,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2765 states to 2765 states and 4039 transitions. [2024-11-22 02:58:06,106 INFO L78 Accepts]: Start accepts. Automaton has 2765 states and 4039 transitions. Word has length 123 [2024-11-22 02:58:06,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:58:06,107 INFO L471 AbstractCegarLoop]: Abstraction has 2765 states and 4039 transitions. [2024-11-22 02:58:06,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.785714285714286) internal successors, (123), 14 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:06,107 INFO L276 IsEmpty]: Start isEmpty. Operand 2765 states and 4039 transitions. [2024-11-22 02:58:06,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-22 02:58:06,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:58:06,108 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:58:06,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-22 02:58:06,109 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:58:06,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:58:06,109 INFO L85 PathProgramCache]: Analyzing trace with hash -299237052, now seen corresponding path program 1 times [2024-11-22 02:58:06,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:58:06,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404289348] [2024-11-22 02:58:06,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:58:06,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:58:06,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:58:10,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:58:10,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:58:10,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404289348] [2024-11-22 02:58:10,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404289348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:58:10,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:58:10,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2024-11-22 02:58:10,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163841487] [2024-11-22 02:58:10,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:58:10,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-11-22 02:58:10,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:58:10,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-11-22 02:58:10,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=1922, Unknown=0, NotChecked=0, Total=2070 [2024-11-22 02:58:10,149 INFO L87 Difference]: Start difference. First operand 2765 states and 4039 transitions. Second operand has 46 states, 46 states have (on average 2.6739130434782608) internal successors, (123), 46 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:22,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:58:22,512 INFO L93 Difference]: Finished difference Result 21333 states and 31525 transitions. [2024-11-22 02:58:22,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-22 02:58:22,513 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 2.6739130434782608) internal successors, (123), 46 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2024-11-22 02:58:22,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:58:22,534 INFO L225 Difference]: With dead ends: 21333 [2024-11-22 02:58:22,534 INFO L226 Difference]: Without dead ends: 21032 [2024-11-22 02:58:22,541 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1257 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=1032, Invalid=6450, Unknown=0, NotChecked=0, Total=7482 [2024-11-22 02:58:22,542 INFO L432 NwaCegarLoop]: 859 mSDtfsCounter, 3324 mSDsluCounter, 19791 mSDsCounter, 0 mSdLazyCounter, 13643 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3324 SdHoareTripleChecker+Valid, 20650 SdHoareTripleChecker+Invalid, 13668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 13643 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-11-22 02:58:22,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3324 Valid, 20650 Invalid, 13668 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 13643 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2024-11-22 02:58:22,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21032 states. [2024-11-22 02:58:22,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21032 to 2836. [2024-11-22 02:58:22,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2836 states, 2835 states have (on average 1.4582010582010583) internal successors, (4134), 2835 states have internal predecessors, (4134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:22,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2836 states to 2836 states and 4134 transitions. [2024-11-22 02:58:22,680 INFO L78 Accepts]: Start accepts. Automaton has 2836 states and 4134 transitions. Word has length 123 [2024-11-22 02:58:22,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:58:22,680 INFO L471 AbstractCegarLoop]: Abstraction has 2836 states and 4134 transitions. [2024-11-22 02:58:22,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 2.6739130434782608) internal successors, (123), 46 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:22,680 INFO L276 IsEmpty]: Start isEmpty. Operand 2836 states and 4134 transitions. [2024-11-22 02:58:22,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-22 02:58:22,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:58:22,682 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:58:22,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-22 02:58:22,682 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:58:22,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:58:22,683 INFO L85 PathProgramCache]: Analyzing trace with hash 905017955, now seen corresponding path program 1 times [2024-11-22 02:58:22,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:58:22,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119305605] [2024-11-22 02:58:22,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:58:22,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:58:22,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:58:25,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:58:25,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:58:25,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119305605] [2024-11-22 02:58:25,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119305605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:58:25,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:58:25,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2024-11-22 02:58:25,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728934579] [2024-11-22 02:58:25,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:58:25,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-22 02:58:25,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:58:25,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-22 02:58:25,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=1691, Unknown=0, NotChecked=0, Total=1806 [2024-11-22 02:58:25,848 INFO L87 Difference]: Start difference. First operand 2836 states and 4134 transitions. Second operand has 43 states, 43 states have (on average 2.86046511627907) internal successors, (123), 43 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:37,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:58:37,261 INFO L93 Difference]: Finished difference Result 23602 states and 34889 transitions. [2024-11-22 02:58:37,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-22 02:58:37,262 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 2.86046511627907) internal successors, (123), 43 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2024-11-22 02:58:37,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:58:37,281 INFO L225 Difference]: With dead ends: 23602 [2024-11-22 02:58:37,281 INFO L226 Difference]: Without dead ends: 21058 [2024-11-22 02:58:37,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1012 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=894, Invalid=5748, Unknown=0, NotChecked=0, Total=6642 [2024-11-22 02:58:37,293 INFO L432 NwaCegarLoop]: 855 mSDtfsCounter, 2657 mSDsluCounter, 21437 mSDsCounter, 0 mSdLazyCounter, 14674 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2657 SdHoareTripleChecker+Valid, 22292 SdHoareTripleChecker+Invalid, 14705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 14674 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2024-11-22 02:58:37,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2657 Valid, 22292 Invalid, 14705 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [31 Valid, 14674 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2024-11-22 02:58:37,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21058 states. [2024-11-22 02:58:37,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21058 to 2853. [2024-11-22 02:58:37,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2853 states, 2852 states have (on average 1.45617110799439) internal successors, (4153), 2852 states have internal predecessors, (4153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:37,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2853 states to 2853 states and 4153 transitions. [2024-11-22 02:58:37,408 INFO L78 Accepts]: Start accepts. Automaton has 2853 states and 4153 transitions. Word has length 123 [2024-11-22 02:58:37,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:58:37,408 INFO L471 AbstractCegarLoop]: Abstraction has 2853 states and 4153 transitions. [2024-11-22 02:58:37,408 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.86046511627907) internal successors, (123), 43 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:37,408 INFO L276 IsEmpty]: Start isEmpty. Operand 2853 states and 4153 transitions. [2024-11-22 02:58:37,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-22 02:58:37,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:58:37,410 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:58:37,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-22 02:58:37,410 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:58:37,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:58:37,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1271361053, now seen corresponding path program 1 times [2024-11-22 02:58:37,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:58:37,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601173193] [2024-11-22 02:58:37,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:58:37,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:58:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:58:37,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:58:37,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:58:37,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601173193] [2024-11-22 02:58:37,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601173193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:58:37,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:58:37,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:58:37,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354434159] [2024-11-22 02:58:37,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:58:37,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:58:37,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:58:37,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:58:37,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:58:37,522 INFO L87 Difference]: Start difference. First operand 2853 states and 4153 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:37,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:58:37,557 INFO L93 Difference]: Finished difference Result 7805 states and 11537 transitions. [2024-11-22 02:58:37,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:58:37,558 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2024-11-22 02:58:37,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:58:37,564 INFO L225 Difference]: With dead ends: 7805 [2024-11-22 02:58:37,565 INFO L226 Difference]: Without dead ends: 5261 [2024-11-22 02:58:37,570 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 [2024-11-22 02:58:37,570 INFO L432 NwaCegarLoop]: 357 mSDtfsCounter, 129 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:58:37,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 551 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:58:37,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5261 states. [2024-11-22 02:58:37,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5261 to 5123. [2024-11-22 02:58:37,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5123 states, 5122 states have (on average 1.4595860991800078) internal successors, (7476), 5122 states have internal predecessors, (7476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:37,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5123 states to 5123 states and 7476 transitions. [2024-11-22 02:58:37,633 INFO L78 Accepts]: Start accepts. Automaton has 5123 states and 7476 transitions. Word has length 123 [2024-11-22 02:58:37,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:58:37,633 INFO L471 AbstractCegarLoop]: Abstraction has 5123 states and 7476 transitions. [2024-11-22 02:58:37,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:37,634 INFO L276 IsEmpty]: Start isEmpty. Operand 5123 states and 7476 transitions. [2024-11-22 02:58:37,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-22 02:58:37,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:58:37,635 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:58:37,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-22 02:58:37,635 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:58:37,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:58:37,636 INFO L85 PathProgramCache]: Analyzing trace with hash -506781723, now seen corresponding path program 1 times [2024-11-22 02:58:37,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:58:37,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102544500] [2024-11-22 02:58:37,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:58:37,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:58:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:58:38,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:58:38,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:58:38,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102544500] [2024-11-22 02:58:38,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102544500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:58:38,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:58:38,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-22 02:58:38,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184096315] [2024-11-22 02:58:38,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:58:38,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-22 02:58:38,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:58:38,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-22 02:58:38,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342 [2024-11-22 02:58:38,802 INFO L87 Difference]: Start difference. First operand 5123 states and 7476 transitions. Second operand has 19 states, 19 states have (on average 6.473684210526316) internal successors, (123), 19 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:40,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:58:40,357 INFO L93 Difference]: Finished difference Result 16074 states and 23610 transitions. [2024-11-22 02:58:40,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-22 02:58:40,358 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 6.473684210526316) internal successors, (123), 19 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2024-11-22 02:58:40,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:58:40,380 INFO L225 Difference]: With dead ends: 16074 [2024-11-22 02:58:40,380 INFO L226 Difference]: Without dead ends: 14873 [2024-11-22 02:58:40,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=304, Invalid=1178, Unknown=0, NotChecked=0, Total=1482 [2024-11-22 02:58:40,388 INFO L432 NwaCegarLoop]: 475 mSDtfsCounter, 1436 mSDsluCounter, 4057 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1436 SdHoareTripleChecker+Valid, 4532 SdHoareTripleChecker+Invalid, 1070 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 02:58:40,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1436 Valid, 4532 Invalid, 1070 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1064 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 02:58:40,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14873 states. [2024-11-22 02:58:40,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14873 to 5090. [2024-11-22 02:58:40,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5090 states, 5089 states have (on average 1.4600117901355865) internal successors, (7430), 5089 states have internal predecessors, (7430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:40,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5090 states to 5090 states and 7430 transitions. [2024-11-22 02:58:40,508 INFO L78 Accepts]: Start accepts. Automaton has 5090 states and 7430 transitions. Word has length 123 [2024-11-22 02:58:40,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:58:40,508 INFO L471 AbstractCegarLoop]: Abstraction has 5090 states and 7430 transitions. [2024-11-22 02:58:40,509 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.473684210526316) internal successors, (123), 19 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:40,509 INFO L276 IsEmpty]: Start isEmpty. Operand 5090 states and 7430 transitions. [2024-11-22 02:58:40,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-22 02:58:40,510 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:58:40,510 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:58:40,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-22 02:58:40,510 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:58:40,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:58:40,511 INFO L85 PathProgramCache]: Analyzing trace with hash 2046852421, now seen corresponding path program 1 times [2024-11-22 02:58:40,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:58:40,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885216498] [2024-11-22 02:58:40,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:58:40,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:58:40,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:58:40,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:58:40,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:58:40,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885216498] [2024-11-22 02:58:40,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885216498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:58:40,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:58:40,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 02:58:40,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589593260] [2024-11-22 02:58:40,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:58:40,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-22 02:58:40,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:58:40,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-22 02:58:40,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-22 02:58:40,818 INFO L87 Difference]: Start difference. First operand 5090 states and 7430 transitions. Second operand has 10 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:41,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:58:41,370 INFO L93 Difference]: Finished difference Result 14998 states and 21966 transitions. [2024-11-22 02:58:41,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 02:58:41,370 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2024-11-22 02:58:41,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:58:41,381 INFO L225 Difference]: With dead ends: 14998 [2024-11-22 02:58:41,381 INFO L226 Difference]: Without dead ends: 10114 [2024-11-22 02:58:41,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-22 02:58:41,388 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 778 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 929 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 929 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 02:58:41,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 1080 Invalid, 935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 929 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 02:58:41,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10114 states. [2024-11-22 02:58:41,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10114 to 5084. [2024-11-22 02:58:41,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5084 states, 5083 states have (on average 1.4601613220539051) internal successors, (7422), 5083 states have internal predecessors, (7422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:41,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5084 states to 5084 states and 7422 transitions. [2024-11-22 02:58:41,469 INFO L78 Accepts]: Start accepts. Automaton has 5084 states and 7422 transitions. Word has length 123 [2024-11-22 02:58:41,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:58:41,469 INFO L471 AbstractCegarLoop]: Abstraction has 5084 states and 7422 transitions. [2024-11-22 02:58:41,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.3) internal successors, (123), 9 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:41,470 INFO L276 IsEmpty]: Start isEmpty. Operand 5084 states and 7422 transitions. [2024-11-22 02:58:41,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-22 02:58:41,471 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:58:41,471 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:58:41,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-22 02:58:41,471 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:58:41,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:58:41,472 INFO L85 PathProgramCache]: Analyzing trace with hash 884540902, now seen corresponding path program 1 times [2024-11-22 02:58:41,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:58:41,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264003554] [2024-11-22 02:58:41,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:58:41,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:58:41,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:58:42,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:58:42,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:58:42,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264003554] [2024-11-22 02:58:42,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264003554] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:58:42,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:58:42,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 02:58:42,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626933683] [2024-11-22 02:58:42,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:58:42,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 02:58:42,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:58:42,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 02:58:42,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-22 02:58:42,061 INFO L87 Difference]: Start difference. First operand 5084 states and 7422 transitions. Second operand has 12 states, 12 states have (on average 10.25) internal successors, (123), 12 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:42,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:58:42,597 INFO L93 Difference]: Finished difference Result 20755 states and 30548 transitions. [2024-11-22 02:58:42,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 02:58:42,598 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.25) internal successors, (123), 12 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2024-11-22 02:58:42,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:58:42,626 INFO L225 Difference]: With dead ends: 20755 [2024-11-22 02:58:42,626 INFO L226 Difference]: Without dead ends: 19568 [2024-11-22 02:58:42,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=135, Invalid=327, Unknown=0, NotChecked=0, Total=462 [2024-11-22 02:58:42,638 INFO L432 NwaCegarLoop]: 380 mSDtfsCounter, 1325 mSDsluCounter, 1768 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 2148 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:58:42,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1325 Valid, 2148 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:58:42,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19568 states. [2024-11-22 02:58:42,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19568 to 5045. [2024-11-22 02:58:42,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5045 states, 5044 states have (on average 1.4615384615384615) internal successors, (7372), 5044 states have internal predecessors, (7372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:42,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5045 states to 5045 states and 7372 transitions. [2024-11-22 02:58:42,777 INFO L78 Accepts]: Start accepts. Automaton has 5045 states and 7372 transitions. Word has length 123 [2024-11-22 02:58:42,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:58:42,777 INFO L471 AbstractCegarLoop]: Abstraction has 5045 states and 7372 transitions. [2024-11-22 02:58:42,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.25) internal successors, (123), 12 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:42,777 INFO L276 IsEmpty]: Start isEmpty. Operand 5045 states and 7372 transitions. [2024-11-22 02:58:42,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-22 02:58:42,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:58:42,778 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:58:42,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-22 02:58:42,779 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:58:42,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:58:42,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1333814116, now seen corresponding path program 1 times [2024-11-22 02:58:42,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:58:42,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301745267] [2024-11-22 02:58:42,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:58:42,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:58:42,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:58:43,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:58:43,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:58:43,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301745267] [2024-11-22 02:58:43,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301745267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:58:43,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:58:43,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-22 02:58:43,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614196979] [2024-11-22 02:58:43,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:58:43,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-22 02:58:43,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:58:43,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-22 02:58:43,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-22 02:58:43,406 INFO L87 Difference]: Start difference. First operand 5045 states and 7372 transitions. Second operand has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:58:44,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:58:44,044 INFO L93 Difference]: Finished difference Result 11033 states and 16208 transitions. [2024-11-22 02:58:44,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 02:58:44,045 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 9.538461538461538) internal successors, (124), 13 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-11-22 02:58:44,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:58:44,057 INFO L225 Difference]: With dead ends: 11033 [2024-11-22 02:58:44,057 INFO L226 Difference]: Without dead ends: 9879 [2024-11-22 02:58:44,061 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2024-11-22 02:58:44,061 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 1037 mSDsluCounter, 1818 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 2144 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:58:44,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1037 Valid, 2144 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:58:44,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9879 states.