./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.UNBOUNDED.pals.c.v+cfa-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_floodmax.4.1.ufo.UNBOUNDED.pals.c.v+cfa-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 3fcf713e89fe507946e50cd7ac5d1f3269c91b4606b9da766f31c3632a8650aa --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 02:40:12,111 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 02:40:12,189 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 02:40:12,196 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 02:40:12,197 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 02:40:12,232 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 02:40:12,233 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 02:40:12,233 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 02:40:12,234 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 02:40:12,234 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 02:40:12,234 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 02:40:12,235 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 02:40:12,237 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 02:40:12,240 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 02:40:12,240 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 02:40:12,240 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 02:40:12,240 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 02:40:12,241 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 02:40:12,241 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 02:40:12,241 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 02:40:12,241 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 02:40:12,243 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 02:40:12,243 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 02:40:12,243 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 02:40:12,243 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 02:40:12,244 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 02:40:12,244 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 02:40:12,244 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 02:40:12,244 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 02:40:12,245 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 02:40:12,245 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 02:40:12,245 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 02:40:12,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:40:12,246 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 02:40:12,246 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 02:40:12,246 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 02:40:12,246 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 02:40:12,247 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 02:40:12,247 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 02:40:12,247 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 02:40:12,247 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 02:40:12,248 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 02:40:12,248 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3fcf713e89fe507946e50cd7ac5d1f3269c91b4606b9da766f31c3632a8650aa [2024-11-22 02:40:12,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 02:40:12,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 02:40:12,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 02:40:12,524 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 02:40:12,524 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 02:40:12,526 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-22 02:40:13,822 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 02:40:14,065 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 02:40:14,066 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-22 02:40:14,085 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3841d2af/48e80f9ac1154f6ab46d7baf969d8129/FLAG36b17ed62 [2024-11-22 02:40:14,397 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b3841d2af/48e80f9ac1154f6ab46d7baf969d8129 [2024-11-22 02:40:14,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 02:40:14,402 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 02:40:14,404 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 02:40:14,404 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 02:40:14,409 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 02:40:14,410 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:40:14" (1/1) ... [2024-11-22 02:40:14,411 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cf311d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:14, skipping insertion in model container [2024-11-22 02:40:14,413 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:40:14" (1/1) ... [2024-11-22 02:40:14,465 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 02:40:14,776 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_floodmax.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[12650,12663] [2024-11-22 02:40:14,846 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:40:14,864 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 02:40:14,924 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_floodmax.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[12650,12663] [2024-11-22 02:40:14,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:40:15,016 INFO L204 MainTranslator]: Completed translation [2024-11-22 02:40:15,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:15 WrapperNode [2024-11-22 02:40:15,038 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 02:40:15,039 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 02:40:15,039 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 02:40:15,039 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 02:40:15,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:15" (1/1) ... [2024-11-22 02:40:15,073 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:15" (1/1) ... [2024-11-22 02:40:15,124 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1331 [2024-11-22 02:40:15,124 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 02:40:15,125 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 02:40:15,125 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 02:40:15,125 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 02:40:15,141 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:15" (1/1) ... [2024-11-22 02:40:15,141 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:15" (1/1) ... [2024-11-22 02:40:15,150 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:15" (1/1) ... [2024-11-22 02:40:15,186 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 02:40:15,186 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:15" (1/1) ... [2024-11-22 02:40:15,186 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:15" (1/1) ... [2024-11-22 02:40:15,213 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:15" (1/1) ... [2024-11-22 02:40:15,229 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:15" (1/1) ... [2024-11-22 02:40:15,238 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:15" (1/1) ... [2024-11-22 02:40:15,245 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:15" (1/1) ... [2024-11-22 02:40:15,254 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 02:40:15,256 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 02:40:15,256 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 02:40:15,257 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 02:40:15,258 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:15" (1/1) ... [2024-11-22 02:40:15,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:40:15,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:40:15,297 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 02:40:15,310 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 02:40:15,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 02:40:15,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 02:40:15,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 02:40:15,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 02:40:15,530 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 02:40:15,532 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 02:40:16,542 INFO L? ?]: Removed 107 outVars from TransFormulas that were not future-live. [2024-11-22 02:40:16,546 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 02:40:16,577 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 02:40:16,578 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-22 02:40:16,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:40:16 BoogieIcfgContainer [2024-11-22 02:40:16,578 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 02:40:16,596 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 02:40:16,596 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 02:40:16,606 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 02:40:16,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:40:14" (1/3) ... [2024-11-22 02:40:16,607 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e497702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:40:16, skipping insertion in model container [2024-11-22 02:40:16,608 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:40:15" (2/3) ... [2024-11-22 02:40:16,609 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e497702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:40:16, skipping insertion in model container [2024-11-22 02:40:16,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:40:16" (3/3) ... [2024-11-22 02:40:16,613 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2024-11-22 02:40:16,642 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 02:40:16,642 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 02:40:16,751 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 02:40:16,759 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;@45fe8e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 02:40:16,760 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 02:40:16,767 INFO L276 IsEmpty]: Start isEmpty. Operand has 314 states, 312 states have (on average 1.7884615384615385) internal successors, (558), 313 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:40:16,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-22 02:40:16,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:40:16,786 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] [2024-11-22 02:40:16,787 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:40:16,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:40:16,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1531985210, now seen corresponding path program 1 times [2024-11-22 02:40:16,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:40:16,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024744302] [2024-11-22 02:40:16,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:40:16,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:40:17,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:40:17,497 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 02:40:17,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:40:17,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024744302] [2024-11-22 02:40:17,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024744302] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:40:17,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:40:17,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:40:17,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302404049] [2024-11-22 02:40:17,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:40:17,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:40:17,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:40:17,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:40:17,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:40:17,534 INFO L87 Difference]: Start difference. First operand has 314 states, 312 states have (on average 1.7884615384615385) internal successors, (558), 313 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:40:17,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:40:17,659 INFO L93 Difference]: Finished difference Result 577 states and 997 transitions. [2024-11-22 02:40:17,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:40:17,661 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 98 [2024-11-22 02:40:17,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:40:17,679 INFO L225 Difference]: With dead ends: 577 [2024-11-22 02:40:17,679 INFO L226 Difference]: Without dead ends: 434 [2024-11-22 02:40:17,683 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 02:40:17,689 INFO L432 NwaCegarLoop]: 552 mSDtfsCounter, 220 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:40:17,691 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 1050 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:40:17,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2024-11-22 02:40:17,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 431. [2024-11-22 02:40:17,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 430 states have (on average 1.6790697674418604) internal successors, (722), 430 states have internal predecessors, (722), 0 states have call successors, (0), 0 states 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 02:40:17,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 722 transitions. [2024-11-22 02:40:17,756 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 722 transitions. Word has length 98 [2024-11-22 02:40:17,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:40:17,756 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 722 transitions. [2024-11-22 02:40:17,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:40:17,757 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 722 transitions. [2024-11-22 02:40:17,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 02:40:17,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:40:17,762 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] [2024-11-22 02:40:17,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 02:40:17,762 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:40:17,763 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:40:17,763 INFO L85 PathProgramCache]: Analyzing trace with hash 900005057, now seen corresponding path program 1 times [2024-11-22 02:40:17,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:40:17,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962925123] [2024-11-22 02:40:17,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:40:17,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:40:17,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:40:17,990 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 02:40:17,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:40:17,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962925123] [2024-11-22 02:40:17,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962925123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:40:17,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:40:17,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:40:17,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248578412] [2024-11-22 02:40:17,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:40:17,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:40:17,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:40:17,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:40:17,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:40:17,997 INFO L87 Difference]: Start difference. First operand 431 states and 722 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states 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 02:40:18,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:40:18,040 INFO L93 Difference]: Finished difference Result 921 states and 1538 transitions. [2024-11-22 02:40:18,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:40:18,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2024-11-22 02:40:18,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:40:18,047 INFO L225 Difference]: With dead ends: 921 [2024-11-22 02:40:18,047 INFO L226 Difference]: Without dead ends: 667 [2024-11-22 02:40:18,048 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 02:40:18,050 INFO L432 NwaCegarLoop]: 521 mSDtfsCounter, 200 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:40:18,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 1016 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:40:18,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2024-11-22 02:40:18,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 663. [2024-11-22 02:40:18,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 662 states have (on average 1.6706948640483383) internal successors, (1106), 662 states have internal predecessors, (1106), 0 states have call successors, (0), 0 states 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 02:40:18,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 1106 transitions. [2024-11-22 02:40:18,085 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 1106 transitions. Word has length 101 [2024-11-22 02:40:18,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:40:18,086 INFO L471 AbstractCegarLoop]: Abstraction has 663 states and 1106 transitions. [2024-11-22 02:40:18,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 0 states have call successors, (0), 0 states 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 02:40:18,087 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 1106 transitions. [2024-11-22 02:40:18,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-22 02:40:18,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:40:18,094 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] [2024-11-22 02:40:18,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 02:40:18,094 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:40:18,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:40:18,095 INFO L85 PathProgramCache]: Analyzing trace with hash -2056367170, now seen corresponding path program 1 times [2024-11-22 02:40:18,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:40:18,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531080846] [2024-11-22 02:40:18,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:40:18,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:40:18,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:40:18,317 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 02:40:18,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:40:18,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531080846] [2024-11-22 02:40:18,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531080846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:40:18,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:40:18,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:40:18,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060777016] [2024-11-22 02:40:18,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:40:18,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:40:18,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:40:18,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:40:18,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:40:18,324 INFO L87 Difference]: Start difference. First operand 663 states and 1106 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states 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 02:40:18,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:40:18,372 INFO L93 Difference]: Finished difference Result 1599 states and 2656 transitions. [2024-11-22 02:40:18,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:40:18,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2024-11-22 02:40:18,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:40:18,380 INFO L225 Difference]: With dead ends: 1599 [2024-11-22 02:40:18,380 INFO L226 Difference]: Without dead ends: 1113 [2024-11-22 02:40:18,382 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 02:40:18,384 INFO L432 NwaCegarLoop]: 521 mSDtfsCounter, 194 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:40:18,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 1017 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:40:18,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2024-11-22 02:40:18,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 1107. [2024-11-22 02:40:18,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1107 states, 1106 states have (on average 1.6582278481012658) internal successors, (1834), 1106 states have internal predecessors, (1834), 0 states have call successors, (0), 0 states 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 02:40:18,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1834 transitions. [2024-11-22 02:40:18,454 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1834 transitions. Word has length 104 [2024-11-22 02:40:18,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:40:18,459 INFO L471 AbstractCegarLoop]: Abstraction has 1107 states and 1834 transitions. [2024-11-22 02:40:18,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states 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 02:40:18,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1834 transitions. [2024-11-22 02:40:18,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-22 02:40:18,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:40:18,461 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 02:40:18,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 02:40:18,462 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:40:18,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:40:18,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1532440003, now seen corresponding path program 1 times [2024-11-22 02:40:18,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:40:18,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238912630] [2024-11-22 02:40:18,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:40:18,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:40:18,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:40:18,650 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 02:40:18,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:40:18,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238912630] [2024-11-22 02:40:18,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238912630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:40:18,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:40:18,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:40:18,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289178000] [2024-11-22 02:40:18,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:40:18,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:40:18,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:40:18,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:40:18,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:40:18,654 INFO L87 Difference]: Start difference. First operand 1107 states and 1834 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 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 02:40:18,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:40:18,697 INFO L93 Difference]: Finished difference Result 2895 states and 4772 transitions. [2024-11-22 02:40:18,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:40:18,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 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 02:40:18,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:40:18,703 INFO L225 Difference]: With dead ends: 2895 [2024-11-22 02:40:18,704 INFO L226 Difference]: Without dead ends: 1965 [2024-11-22 02:40:18,707 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 02:40:18,708 INFO L432 NwaCegarLoop]: 521 mSDtfsCounter, 188 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 1018 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:40:18,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 1018 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:40:18,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2024-11-22 02:40:18,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1955. [2024-11-22 02:40:18,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1955 states, 1954 states have (on average 1.6427840327533265) internal successors, (3210), 1954 states have internal predecessors, (3210), 0 states have call successors, (0), 0 states 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 02:40:18,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1955 states to 1955 states and 3210 transitions. [2024-11-22 02:40:18,748 INFO L78 Accepts]: Start accepts. Automaton has 1955 states and 3210 transitions. Word has length 107 [2024-11-22 02:40:18,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:40:18,748 INFO L471 AbstractCegarLoop]: Abstraction has 1955 states and 3210 transitions. [2024-11-22 02:40:18,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 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 02:40:18,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1955 states and 3210 transitions. [2024-11-22 02:40:18,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-22 02:40:18,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:40:18,751 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 02:40:18,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 02:40:18,751 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:40:18,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:40:18,752 INFO L85 PathProgramCache]: Analyzing trace with hash 911548994, now seen corresponding path program 1 times [2024-11-22 02:40:18,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:40:18,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530097508] [2024-11-22 02:40:18,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:40:18,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:40:18,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:40:19,028 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 02:40:19,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:40:19,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530097508] [2024-11-22 02:40:19,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530097508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:40:19,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:40:19,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:40:19,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185273830] [2024-11-22 02:40:19,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:40:19,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:40:19,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:40:19,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:40:19,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:40:19,030 INFO L87 Difference]: Start difference. First operand 1955 states and 3210 transitions. Second operand has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 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 02:40:19,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:40:19,297 INFO L93 Difference]: Finished difference Result 10211 states and 16886 transitions. [2024-11-22 02:40:19,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:40:19,298 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 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 02:40:19,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:40:19,324 INFO L225 Difference]: With dead ends: 10211 [2024-11-22 02:40:19,324 INFO L226 Difference]: Without dead ends: 8433 [2024-11-22 02:40:19,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-22 02:40:19,334 INFO L432 NwaCegarLoop]: 515 mSDtfsCounter, 1935 mSDsluCounter, 3759 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1935 SdHoareTripleChecker+Valid, 4274 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:40:19,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1935 Valid, 4274 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:40:19,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8433 states. [2024-11-22 02:40:19,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8433 to 3613. [2024-11-22 02:40:19,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3613 states, 3612 states have (on average 1.6403654485049834) internal successors, (5925), 3612 states have internal predecessors, (5925), 0 states have call successors, (0), 0 states 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 02:40:19,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3613 states to 3613 states and 5925 transitions. [2024-11-22 02:40:19,439 INFO L78 Accepts]: Start accepts. Automaton has 3613 states and 5925 transitions. Word has length 110 [2024-11-22 02:40:19,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:40:19,440 INFO L471 AbstractCegarLoop]: Abstraction has 3613 states and 5925 transitions. [2024-11-22 02:40:19,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 6 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 02:40:19,440 INFO L276 IsEmpty]: Start isEmpty. Operand 3613 states and 5925 transitions. [2024-11-22 02:40:19,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-22 02:40:19,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:40:19,442 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 02:40:19,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 02:40:19,443 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:40:19,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:40:19,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1873814308, now seen corresponding path program 1 times [2024-11-22 02:40:19,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:40:19,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924563768] [2024-11-22 02:40:19,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:40:19,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:40:19,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:40:19,619 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 02:40:19,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:40:19,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924563768] [2024-11-22 02:40:19,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924563768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:40:19,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:40:19,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:40:19,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962127876] [2024-11-22 02:40:19,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:40:19,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:40:19,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:40:19,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:40:19,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:40:19,621 INFO L87 Difference]: Start difference. First operand 3613 states and 5925 transitions. Second operand has 4 states, 4 states have (on average 27.75) 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 02:40:19,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:40:19,721 INFO L93 Difference]: Finished difference Result 10593 states and 17463 transitions. [2024-11-22 02:40:19,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:40:19,722 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) 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 02:40:19,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:40:19,748 INFO L225 Difference]: With dead ends: 10593 [2024-11-22 02:40:19,749 INFO L226 Difference]: Without dead ends: 7157 [2024-11-22 02:40:19,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:40:19,757 INFO L432 NwaCegarLoop]: 515 mSDtfsCounter, 658 mSDsluCounter, 1054 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 658 SdHoareTripleChecker+Valid, 1569 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:40:19,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [658 Valid, 1569 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:40:19,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7157 states. [2024-11-22 02:40:19,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7157 to 5368. [2024-11-22 02:40:19,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5368 states, 5367 states have (on average 1.6431898639836036) internal successors, (8819), 5367 states have internal predecessors, (8819), 0 states have call successors, (0), 0 states 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 02:40:19,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5368 states to 5368 states and 8819 transitions. [2024-11-22 02:40:19,879 INFO L78 Accepts]: Start accepts. Automaton has 5368 states and 8819 transitions. Word has length 111 [2024-11-22 02:40:19,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:40:19,880 INFO L471 AbstractCegarLoop]: Abstraction has 5368 states and 8819 transitions. [2024-11-22 02:40:19,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) 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 02:40:19,881 INFO L276 IsEmpty]: Start isEmpty. Operand 5368 states and 8819 transitions. [2024-11-22 02:40:19,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-22 02:40:19,884 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:40:19,884 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 02:40:19,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 02:40:19,884 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:40:19,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:40:19,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1978794569, now seen corresponding path program 1 times [2024-11-22 02:40:19,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:40:19,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149179754] [2024-11-22 02:40:19,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:40:19,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:40:19,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:40:20,102 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 02:40:20,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:40:20,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149179754] [2024-11-22 02:40:20,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149179754] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:40:20,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:40:20,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:40:20,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415795588] [2024-11-22 02:40:20,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:40:20,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:40:20,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:40:20,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:40:20,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:40:20,107 INFO L87 Difference]: Start difference. First operand 5368 states and 8819 transitions. Second operand has 4 states, 4 states have (on average 28.0) 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 02:40:20,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:40:20,239 INFO L93 Difference]: Finished difference Result 15765 states and 25969 transitions. [2024-11-22 02:40:20,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:40:20,240 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) 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 02:40:20,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:40:20,270 INFO L225 Difference]: With dead ends: 15765 [2024-11-22 02:40:20,270 INFO L226 Difference]: Without dead ends: 10574 [2024-11-22 02:40:20,281 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:40:20,282 INFO L432 NwaCegarLoop]: 520 mSDtfsCounter, 656 mSDsluCounter, 1213 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 1733 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:40:20,282 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 1733 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:40:20,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10574 states. [2024-11-22 02:40:20,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10574 to 7947. [2024-11-22 02:40:20,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7947 states, 7946 states have (on average 1.641580669519255) internal successors, (13044), 7946 states have internal predecessors, (13044), 0 states have call successors, (0), 0 states 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 02:40:20,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7947 states to 7947 states and 13044 transitions. [2024-11-22 02:40:20,401 INFO L78 Accepts]: Start accepts. Automaton has 7947 states and 13044 transitions. Word has length 112 [2024-11-22 02:40:20,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:40:20,402 INFO L471 AbstractCegarLoop]: Abstraction has 7947 states and 13044 transitions. [2024-11-22 02:40:20,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) 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 02:40:20,402 INFO L276 IsEmpty]: Start isEmpty. Operand 7947 states and 13044 transitions. [2024-11-22 02:40:20,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-22 02:40:20,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:40:20,405 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 02:40:20,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 02:40:20,405 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:40:20,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:40:20,406 INFO L85 PathProgramCache]: Analyzing trace with hash -2111780172, now seen corresponding path program 1 times [2024-11-22 02:40:20,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:40:20,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211022484] [2024-11-22 02:40:20,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:40:20,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:40:20,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:40:20,543 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 02:40:20,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:40:20,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211022484] [2024-11-22 02:40:20,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211022484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:40:20,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:40:20,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:40:20,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838006265] [2024-11-22 02:40:20,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:40:20,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:40:20,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:40:20,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:40:20,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:40:20,545 INFO L87 Difference]: Start difference. First operand 7947 states and 13044 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 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 02:40:20,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:40:20,614 INFO L93 Difference]: Finished difference Result 17498 states and 28779 transitions. [2024-11-22 02:40:20,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:40:20,615 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 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 02:40:20,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:40:20,637 INFO L225 Difference]: With dead ends: 17498 [2024-11-22 02:40:20,638 INFO L226 Difference]: Without dead ends: 12105 [2024-11-22 02:40:20,650 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 02:40:20,651 INFO L432 NwaCegarLoop]: 653 mSDtfsCounter, 199 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:40:20,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 1141 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:40:20,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12105 states. [2024-11-22 02:40:20,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12105 to 12103. [2024-11-22 02:40:20,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12103 states, 12102 states have (on average 1.6384068748967113) internal successors, (19828), 12102 states have internal predecessors, (19828), 0 states have call successors, (0), 0 states 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 02:40:20,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12103 states to 12103 states and 19828 transitions. [2024-11-22 02:40:20,921 INFO L78 Accepts]: Start accepts. Automaton has 12103 states and 19828 transitions. Word has length 113 [2024-11-22 02:40:20,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:40:20,922 INFO L471 AbstractCegarLoop]: Abstraction has 12103 states and 19828 transitions. [2024-11-22 02:40:20,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 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 02:40:20,925 INFO L276 IsEmpty]: Start isEmpty. Operand 12103 states and 19828 transitions. [2024-11-22 02:40:20,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-22 02:40:20,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:40:20,927 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 02:40:20,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 02:40:20,927 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:40:20,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:40:20,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1571535332, now seen corresponding path program 1 times [2024-11-22 02:40:20,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:40:20,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306469547] [2024-11-22 02:40:20,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:40:20,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:40:20,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:40:21,087 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 02:40:21,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:40:21,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306469547] [2024-11-22 02:40:21,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306469547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:40:21,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:40:21,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:40:21,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457398961] [2024-11-22 02:40:21,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:40:21,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:40:21,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:40:21,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:40:21,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:40:21,090 INFO L87 Difference]: Start difference. First operand 12103 states and 19828 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 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 02:40:21,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:40:21,187 INFO L93 Difference]: Finished difference Result 23535 states and 38662 transitions. [2024-11-22 02:40:21,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:40:21,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 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 02:40:21,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:40:21,298 INFO L225 Difference]: With dead ends: 23535 [2024-11-22 02:40:21,298 INFO L226 Difference]: Without dead ends: 17013 [2024-11-22 02:40:21,307 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 02:40:21,307 INFO L432 NwaCegarLoop]: 627 mSDtfsCounter, 193 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1116 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:40:21,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 1116 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:40:21,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17013 states. [2024-11-22 02:40:21,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17013 to 17011. [2024-11-22 02:40:21,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17011 states, 17010 states have (on average 1.6357436801881247) internal successors, (27824), 17010 states have internal predecessors, (27824), 0 states have call successors, (0), 0 states 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 02:40:21,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17011 states to 17011 states and 27824 transitions. [2024-11-22 02:40:21,564 INFO L78 Accepts]: Start accepts. Automaton has 17011 states and 27824 transitions. Word has length 113 [2024-11-22 02:40:21,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:40:21,565 INFO L471 AbstractCegarLoop]: Abstraction has 17011 states and 27824 transitions. [2024-11-22 02:40:21,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 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 02:40:21,565 INFO L276 IsEmpty]: Start isEmpty. Operand 17011 states and 27824 transitions. [2024-11-22 02:40:21,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-22 02:40:21,570 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:40:21,570 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 02:40:21,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 02:40:21,571 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:40:21,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:40:21,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1155143491, now seen corresponding path program 1 times [2024-11-22 02:40:21,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:40:21,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546729365] [2024-11-22 02:40:21,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:40:21,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:40:21,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:40:21,739 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 02:40:21,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:40:21,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546729365] [2024-11-22 02:40:21,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546729365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:40:21,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:40:21,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:40:21,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239309219] [2024-11-22 02:40:21,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:40:21,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:40:21,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:40:21,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:40:21,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:40:21,741 INFO L87 Difference]: Start difference. First operand 17011 states and 27824 transitions. Second operand has 4 states, 4 states have (on average 28.25) 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 02:40:21,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:40:21,973 INFO L93 Difference]: Finished difference Result 54370 states and 89164 transitions. [2024-11-22 02:40:21,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:40:21,973 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) 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 02:40:21,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:40:22,042 INFO L225 Difference]: With dead ends: 54370 [2024-11-22 02:40:22,042 INFO L226 Difference]: Without dead ends: 37643 [2024-11-22 02:40:22,069 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:40:22,070 INFO L432 NwaCegarLoop]: 512 mSDtfsCounter, 654 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 654 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:40:22,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [654 Valid, 1514 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:40:22,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37643 states. [2024-11-22 02:40:22,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37643 to 27271. [2024-11-22 02:40:22,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27271 states, 27270 states have (on average 1.6332966629996333) internal successors, (44540), 27270 states have internal predecessors, (44540), 0 states have call successors, (0), 0 states 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 02:40:22,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27271 states to 27271 states and 44540 transitions. [2024-11-22 02:40:22,713 INFO L78 Accepts]: Start accepts. Automaton has 27271 states and 44540 transitions. Word has length 113 [2024-11-22 02:40:22,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:40:22,713 INFO L471 AbstractCegarLoop]: Abstraction has 27271 states and 44540 transitions. [2024-11-22 02:40:22,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) 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 02:40:22,714 INFO L276 IsEmpty]: Start isEmpty. Operand 27271 states and 44540 transitions. [2024-11-22 02:40:22,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-22 02:40:22,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:40:22,715 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 02:40:22,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 02:40:22,715 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:40:22,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:40:22,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1280489340, now seen corresponding path program 1 times [2024-11-22 02:40:22,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:40:22,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828898787] [2024-11-22 02:40:22,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:40:22,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:40:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:40:22,796 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 02:40:22,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:40:22,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828898787] [2024-11-22 02:40:22,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828898787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:40:22,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:40:22,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:40:22,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294294819] [2024-11-22 02:40:22,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:40:22,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:40:22,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:40:22,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:40:22,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:40:22,798 INFO L87 Difference]: Start difference. First operand 27271 states and 44540 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 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 02:40:23,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:40:23,040 INFO L93 Difference]: Finished difference Result 53211 states and 87188 transitions. [2024-11-22 02:40:23,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:40:23,041 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 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 02:40:23,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:40:23,127 INFO L225 Difference]: With dead ends: 53211 [2024-11-22 02:40:23,128 INFO L226 Difference]: Without dead ends: 38175 [2024-11-22 02:40:23,158 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 02:40:23,159 INFO L432 NwaCegarLoop]: 600 mSDtfsCounter, 187 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:40:23,159 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 1090 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:40:23,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38175 states. [2024-11-22 02:40:23,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38175 to 38173. [2024-11-22 02:40:23,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38173 states, 38172 states have (on average 1.6304621188305564) internal successors, (62238), 38172 states have internal predecessors, (62238), 0 states have call successors, (0), 0 states 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 02:40:23,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38173 states to 38173 states and 62238 transitions. [2024-11-22 02:40:23,746 INFO L78 Accepts]: Start accepts. Automaton has 38173 states and 62238 transitions. Word has length 113 [2024-11-22 02:40:23,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:40:23,746 INFO L471 AbstractCegarLoop]: Abstraction has 38173 states and 62238 transitions. [2024-11-22 02:40:23,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 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 02:40:23,746 INFO L276 IsEmpty]: Start isEmpty. Operand 38173 states and 62238 transitions. [2024-11-22 02:40:23,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-22 02:40:23,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:40:23,748 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, 1, 1] [2024-11-22 02:40:23,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 02:40:23,748 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:40:23,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:40:23,749 INFO L85 PathProgramCache]: Analyzing trace with hash 760927820, now seen corresponding path program 1 times [2024-11-22 02:40:23,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:40:23,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358945591] [2024-11-22 02:40:23,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:40:23,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:40:23,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:40:23,852 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 02:40:23,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:40:23,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358945591] [2024-11-22 02:40:23,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358945591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:40:23,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:40:23,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:40:23,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695993263] [2024-11-22 02:40:23,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:40:23,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:40:23,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:40:23,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:40:23,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:40:23,855 INFO L87 Difference]: Start difference. First operand 38173 states and 62238 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 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 02:40:24,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:40:24,246 INFO L93 Difference]: Finished difference Result 83680 states and 137527 transitions. [2024-11-22 02:40:24,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:40:24,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 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 02:40:24,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:40:24,470 INFO L225 Difference]: With dead ends: 83680 [2024-11-22 02:40:24,470 INFO L226 Difference]: Without dead ends: 56799 [2024-11-22 02:40:24,486 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 02:40:24,487 INFO L432 NwaCegarLoop]: 692 mSDtfsCounter, 205 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:40:24,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 1179 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:40:24,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56799 states. [2024-11-22 02:40:25,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56799 to 56797. [2024-11-22 02:40:25,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56797 states, 56796 states have (on average 1.6322628354109445) internal successors, (92706), 56796 states have internal predecessors, (92706), 0 states have call successors, (0), 0 states 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 02:40:25,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56797 states to 56797 states and 92706 transitions. [2024-11-22 02:40:25,349 INFO L78 Accepts]: Start accepts. Automaton has 56797 states and 92706 transitions. Word has length 113 [2024-11-22 02:40:25,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:40:25,350 INFO L471 AbstractCegarLoop]: Abstraction has 56797 states and 92706 transitions. [2024-11-22 02:40:25,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 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 02:40:25,350 INFO L276 IsEmpty]: Start isEmpty. Operand 56797 states and 92706 transitions. [2024-11-22 02:40:25,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-22 02:40:25,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:40:25,352 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 02:40:25,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 02:40:25,352 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:40:25,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:40:25,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1396321872, now seen corresponding path program 1 times [2024-11-22 02:40:25,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:40:25,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86891035] [2024-11-22 02:40:25,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:40:25,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:40:25,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:40:25,532 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 02:40:25,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:40:25,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86891035] [2024-11-22 02:40:25,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86891035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:40:25,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:40:25,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:40:25,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915878369] [2024-11-22 02:40:25,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:40:25,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:40:25,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:40:25,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:40:25,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:40:25,535 INFO L87 Difference]: Start difference. First operand 56797 states and 92706 transitions. Second operand has 4 states, 4 states have (on average 28.5) 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 02:40:26,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:40:26,292 INFO L93 Difference]: Finished difference Result 182050 states and 297971 transitions. [2024-11-22 02:40:26,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:40:26,292 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) 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 02:40:26,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:40:26,517 INFO L225 Difference]: With dead ends: 182050 [2024-11-22 02:40:26,518 INFO L226 Difference]: Without dead ends: 125485 [2024-11-22 02:40:26,823 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:40:26,823 INFO L432 NwaCegarLoop]: 512 mSDtfsCounter, 652 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:40:26,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [652 Valid, 1713 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:40:26,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125485 states. [2024-11-22 02:40:27,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125485 to 90916. [2024-11-22 02:40:28,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90916 states, 90915 states have (on average 1.6285431446955947) internal successors, (148059), 90915 states have internal predecessors, (148059), 0 states have call successors, (0), 0 states 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 02:40:28,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90916 states to 90916 states and 148059 transitions. [2024-11-22 02:40:28,293 INFO L78 Accepts]: Start accepts. Automaton has 90916 states and 148059 transitions. Word has length 114 [2024-11-22 02:40:28,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:40:28,293 INFO L471 AbstractCegarLoop]: Abstraction has 90916 states and 148059 transitions. [2024-11-22 02:40:28,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) 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 02:40:28,294 INFO L276 IsEmpty]: Start isEmpty. Operand 90916 states and 148059 transitions. [2024-11-22 02:40:28,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-22 02:40:28,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:40:28,295 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 02:40:28,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 02:40:28,295 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:40:28,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:40:28,296 INFO L85 PathProgramCache]: Analyzing trace with hash 318216513, now seen corresponding path program 1 times [2024-11-22 02:40:28,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:40:28,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341751257] [2024-11-22 02:40:28,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:40:28,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:40:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:40:28,676 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 02:40:28,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:40:28,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341751257] [2024-11-22 02:40:28,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341751257] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:40:28,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:40:28,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:40:28,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088813742] [2024-11-22 02:40:28,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:40:28,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:40:28,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:40:28,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:40:28,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:40:28,678 INFO L87 Difference]: Start difference. First operand 90916 states and 148059 transitions. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 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 02:40:29,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:40:29,635 INFO L93 Difference]: Finished difference Result 181602 states and 295740 transitions. [2024-11-22 02:40:29,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 02:40:29,636 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 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 02:40:29,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:40:29,766 INFO L225 Difference]: With dead ends: 181602 [2024-11-22 02:40:29,766 INFO L226 Difference]: Without dead ends: 90918 [2024-11-22 02:40:29,831 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:40:29,832 INFO L432 NwaCegarLoop]: 519 mSDtfsCounter, 570 mSDsluCounter, 1473 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 570 SdHoareTripleChecker+Valid, 1992 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:40:29,832 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [570 Valid, 1992 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:40:29,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90918 states. [2024-11-22 02:40:30,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90918 to 90916. [2024-11-22 02:40:31,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90916 states, 90915 states have (on average 1.6216685915415499) internal successors, (147434), 90915 states have internal predecessors, (147434), 0 states have call successors, (0), 0 states 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 02:40:31,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90916 states to 90916 states and 147434 transitions. [2024-11-22 02:40:31,564 INFO L78 Accepts]: Start accepts. Automaton has 90916 states and 147434 transitions. Word has length 116 [2024-11-22 02:40:31,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:40:31,565 INFO L471 AbstractCegarLoop]: Abstraction has 90916 states and 147434 transitions. [2024-11-22 02:40:31,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 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 02:40:31,565 INFO L276 IsEmpty]: Start isEmpty. Operand 90916 states and 147434 transitions. [2024-11-22 02:40:31,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-22 02:40:31,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:40:31,569 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 02:40:31,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 02:40:31,569 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:40:31,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:40:31,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1053071851, now seen corresponding path program 1 times [2024-11-22 02:40:31,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:40:31,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558073236] [2024-11-22 02:40:31,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:40:31,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:40:31,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:40:31,786 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 02:40:31,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:40:31,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558073236] [2024-11-22 02:40:31,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [558073236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:40:31,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:40:31,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:40:31,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418462262] [2024-11-22 02:40:31,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:40:31,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:40:31,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:40:31,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:40:31,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:40:31,787 INFO L87 Difference]: Start difference. First operand 90916 states and 147434 transitions. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 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 02:40:33,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:40:33,044 INFO L93 Difference]: Finished difference Result 265760 states and 431456 transitions. [2024-11-22 02:40:33,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 02:40:33,045 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 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 02:40:33,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:40:33,407 INFO L225 Difference]: With dead ends: 265760 [2024-11-22 02:40:33,407 INFO L226 Difference]: Without dead ends: 175076 [2024-11-22 02:40:33,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:40:33,465 INFO L432 NwaCegarLoop]: 514 mSDtfsCounter, 751 mSDsluCounter, 1491 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 2005 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:40:33,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [751 Valid, 2005 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:40:33,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175076 states. [2024-11-22 02:40:35,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175076 to 175074. [2024-11-22 02:40:36,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175074 states, 175073 states have (on average 1.6129443146573144) internal successors, (282383), 175073 states have internal predecessors, (282383), 0 states have call successors, (0), 0 states 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 02:40:36,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175074 states to 175074 states and 282383 transitions. [2024-11-22 02:40:36,411 INFO L78 Accepts]: Start accepts. Automaton has 175074 states and 282383 transitions. Word has length 119 [2024-11-22 02:40:36,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:40:36,412 INFO L471 AbstractCegarLoop]: Abstraction has 175074 states and 282383 transitions. [2024-11-22 02:40:36,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 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 02:40:36,412 INFO L276 IsEmpty]: Start isEmpty. Operand 175074 states and 282383 transitions. [2024-11-22 02:40:36,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-22 02:40:36,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:40:36,413 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 02:40:36,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 02:40:36,413 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:40:36,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:40:36,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1712601854, now seen corresponding path program 1 times [2024-11-22 02:40:36,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:40:36,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226979050] [2024-11-22 02:40:36,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:40:36,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:40:36,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:40:37,636 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 02:40:37,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:40:37,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226979050] [2024-11-22 02:40:37,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226979050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:40:37,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:40:37,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:40:37,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646732152] [2024-11-22 02:40:37,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:40:37,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:40:37,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:40:37,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:40:37,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:40:37,645 INFO L87 Difference]: Start difference. First operand 175074 states and 282383 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 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 02:40:38,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:40:38,287 INFO L93 Difference]: Finished difference Result 178948 states and 288192 transitions. [2024-11-22 02:40:38,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:40:38,287 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 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 02:40:38,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:40:38,577 INFO L225 Difference]: With dead ends: 178948 [2024-11-22 02:40:38,577 INFO L226 Difference]: Without dead ends: 178946 [2024-11-22 02:40:38,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:40:38,653 INFO L432 NwaCegarLoop]: 521 mSDtfsCounter, 0 mSDsluCounter, 1546 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2067 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:40:38,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2067 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:40:38,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178946 states. [2024-11-22 02:40:41,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178946 to 178946. [2024-11-22 02:40:41,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178946 states, 178945 states have (on average 1.599530582022409) internal successors, (286228), 178945 states have internal predecessors, (286228), 0 states have call successors, (0), 0 states 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 02:40:41,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178946 states to 178946 states and 286228 transitions. [2024-11-22 02:40:41,802 INFO L78 Accepts]: Start accepts. Automaton has 178946 states and 286228 transitions. Word has length 120 [2024-11-22 02:40:41,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:40:41,803 INFO L471 AbstractCegarLoop]: Abstraction has 178946 states and 286228 transitions. [2024-11-22 02:40:41,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 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 02:40:41,803 INFO L276 IsEmpty]: Start isEmpty. Operand 178946 states and 286228 transitions. [2024-11-22 02:40:41,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-22 02:40:41,807 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:40:41,808 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:40:41,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 02:40:41,808 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:40:41,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:40:41,808 INFO L85 PathProgramCache]: Analyzing trace with hash -991920616, now seen corresponding path program 1 times [2024-11-22 02:40:41,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:40:41,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392503461] [2024-11-22 02:40:41,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:40:41,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:40:41,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:40:42,079 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-22 02:40:42,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:40:42,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392503461] [2024-11-22 02:40:42,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392503461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:40:42,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:40:42,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:40:42,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118747350] [2024-11-22 02:40:42,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:40:42,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:40:42,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:40:42,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:40:42,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:40:42,082 INFO L87 Difference]: Start difference. First operand 178946 states and 286228 transitions. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 0 states 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 02:40:44,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:40:44,376 INFO L93 Difference]: Finished difference Result 487708 states and 782933 transitions. [2024-11-22 02:40:44,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 02:40:44,377 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 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 151 [2024-11-22 02:40:44,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:40:46,344 INFO L225 Difference]: With dead ends: 487708 [2024-11-22 02:40:46,344 INFO L226 Difference]: Without dead ends: 409056 [2024-11-22 02:40:46,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:40:46,420 INFO L432 NwaCegarLoop]: 742 mSDtfsCounter, 1312 mSDsluCounter, 2413 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1312 SdHoareTripleChecker+Valid, 3155 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:40:46,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1312 Valid, 3155 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:40:46,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409056 states. [2024-11-22 02:40:51,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409056 to 287494. [2024-11-22 02:40:51,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287494 states, 287493 states have (on average 1.5982163043969766) internal successors, (459476), 287493 states have internal predecessors, (459476), 0 states have call successors, (0), 0 states 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 02:40:52,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287494 states to 287494 states and 459476 transitions. [2024-11-22 02:40:52,011 INFO L78 Accepts]: Start accepts. Automaton has 287494 states and 459476 transitions. Word has length 151 [2024-11-22 02:40:52,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:40:52,011 INFO L471 AbstractCegarLoop]: Abstraction has 287494 states and 459476 transitions. [2024-11-22 02:40:52,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 0 states have call successors, (0), 0 states 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 02:40:52,011 INFO L276 IsEmpty]: Start isEmpty. Operand 287494 states and 459476 transitions. [2024-11-22 02:40:52,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-22 02:40:52,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:40:52,017 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:40:52,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 02:40:52,017 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:40:52,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:40:52,017 INFO L85 PathProgramCache]: Analyzing trace with hash -451675776, now seen corresponding path program 1 times [2024-11-22 02:40:52,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:40:52,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013045157] [2024-11-22 02:40:52,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:40:52,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:40:52,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:40:53,080 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-22 02:40:53,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:40:53,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013045157] [2024-11-22 02:40:53,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013045157] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:40:53,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:40:53,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:40:53,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719173964] [2024-11-22 02:40:53,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:40:53,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:40:53,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:40:53,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:40:53,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:40:53,082 INFO L87 Difference]: Start difference. First operand 287494 states and 459476 transitions. Second operand has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states 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 02:40:55,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:40:55,643 INFO L93 Difference]: Finished difference Result 537756 states and 863617 transitions. [2024-11-22 02:40:55,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 02:40:55,644 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 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 151 [2024-11-22 02:40:55,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:40:56,692 INFO L225 Difference]: With dead ends: 537756 [2024-11-22 02:40:56,692 INFO L226 Difference]: Without dead ends: 459104 [2024-11-22 02:40:56,844 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-22 02:40:56,845 INFO L432 NwaCegarLoop]: 738 mSDtfsCounter, 1401 mSDsluCounter, 1972 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1401 SdHoareTripleChecker+Valid, 2710 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:40:56,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1401 Valid, 2710 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:40:57,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459104 states. [2024-11-22 02:41:02,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459104 to 388612. [2024-11-22 02:41:02,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388612 states, 388611 states have (on average 1.599573866926052) internal successors, (621612), 388611 states have internal predecessors, (621612), 0 states have call successors, (0), 0 states 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 02:41:03,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388612 states to 388612 states and 621612 transitions. [2024-11-22 02:41:03,295 INFO L78 Accepts]: Start accepts. Automaton has 388612 states and 621612 transitions. Word has length 151 [2024-11-22 02:41:03,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:41:03,295 INFO L471 AbstractCegarLoop]: Abstraction has 388612 states and 621612 transitions. [2024-11-22 02:41:03,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.166666666666668) internal successors, (139), 6 states have internal predecessors, (139), 0 states have call successors, (0), 0 states 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 02:41:03,296 INFO L276 IsEmpty]: Start isEmpty. Operand 388612 states and 621612 transitions. [2024-11-22 02:41:03,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-22 02:41:03,301 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:41:03,301 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:41:03,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 02:41:03,301 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:41:03,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:41:03,302 INFO L85 PathProgramCache]: Analyzing trace with hash -160629784, now seen corresponding path program 1 times [2024-11-22 02:41:03,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:41:03,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311113990] [2024-11-22 02:41:03,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:41:03,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:41:03,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:41:03,486 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-22 02:41:03,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:41:03,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311113990] [2024-11-22 02:41:03,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311113990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:41:03,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:41:03,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:41:03,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970812598] [2024-11-22 02:41:03,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:41:03,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:41:03,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:41:03,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:41:03,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:41:03,489 INFO L87 Difference]: Start difference. First operand 388612 states and 621612 transitions. Second operand has 6 states, 6 states have (on average 22.166666666666668) internal successors, (133), 6 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)