./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label27.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label27.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 27d9513298c2d91bcc5eebbf6720b0636de12051660f20eee9d0e3eb32b55c46 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 17:32:23,908 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 17:32:23,989 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 17:32:23,996 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 17:32:23,996 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 17:32:24,026 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 17:32:24,027 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 17:32:24,027 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 17:32:24,028 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 17:32:24,028 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 17:32:24,029 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 17:32:24,029 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 17:32:24,030 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 17:32:24,030 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 17:32:24,030 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 17:32:24,031 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 17:32:24,031 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 17:32:24,031 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 17:32:24,032 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 17:32:24,032 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 17:32:24,032 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 17:32:24,033 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 17:32:24,033 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 17:32:24,033 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 17:32:24,034 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 17:32:24,034 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 17:32:24,034 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 17:32:24,035 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 17:32:24,035 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 17:32:24,035 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 17:32:24,036 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 17:32:24,036 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 17:32:24,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 17:32:24,036 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 17:32:24,037 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 17:32:24,037 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 17:32:24,037 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 17:32:24,037 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 17:32:24,038 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 17:32:24,038 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 17:32:24,038 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 17:32:24,039 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 17:32:24,039 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27d9513298c2d91bcc5eebbf6720b0636de12051660f20eee9d0e3eb32b55c46 [2024-11-19 17:32:24,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 17:32:24,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 17:32:24,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 17:32:24,323 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 17:32:24,323 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 17:32:24,324 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label27.c [2024-11-19 17:32:25,761 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 17:32:26,309 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 17:32:26,310 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label27.c [2024-11-19 17:32:26,360 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5069f807c/18f076a9c7984801b2b1cbe1be4ffb3f/FLAG99047f18d [2024-11-19 17:32:26,376 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5069f807c/18f076a9c7984801b2b1cbe1be4ffb3f [2024-11-19 17:32:26,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 17:32:26,381 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 17:32:26,383 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 17:32:26,384 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 17:32:26,389 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 17:32:26,390 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:32:26" (1/1) ... [2024-11-19 17:32:26,390 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75444ddf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:26, skipping insertion in model container [2024-11-19 17:32:26,391 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:32:26" (1/1) ... [2024-11-19 17:32:26,601 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 17:32:28,149 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label27.c[379031,379044] [2024-11-19 17:32:28,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 17:32:28,187 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 17:32:29,041 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem05_label27.c[379031,379044] [2024-11-19 17:32:29,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 17:32:29,109 INFO L204 MainTranslator]: Completed translation [2024-11-19 17:32:29,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:29 WrapperNode [2024-11-19 17:32:29,110 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 17:32:29,111 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 17:32:29,111 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 17:32:29,112 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 17:32:29,119 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:29" (1/1) ... [2024-11-19 17:32:29,193 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:29" (1/1) ... [2024-11-19 17:32:29,599 INFO L138 Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 12354 [2024-11-19 17:32:29,600 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 17:32:29,600 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 17:32:29,601 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 17:32:29,601 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 17:32:29,612 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:29" (1/1) ... [2024-11-19 17:32:29,612 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:29" (1/1) ... [2024-11-19 17:32:29,649 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:29" (1/1) ... [2024-11-19 17:32:29,718 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 17:32:29,719 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:29" (1/1) ... [2024-11-19 17:32:29,719 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:29" (1/1) ... [2024-11-19 17:32:29,876 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:29" (1/1) ... [2024-11-19 17:32:29,915 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:29" (1/1) ... [2024-11-19 17:32:29,939 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:29" (1/1) ... [2024-11-19 17:32:29,966 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:29" (1/1) ... [2024-11-19 17:32:30,016 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 17:32:30,017 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 17:32:30,017 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 17:32:30,017 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 17:32:30,019 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:29" (1/1) ... [2024-11-19 17:32:30,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 17:32:30,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 17:32:30,051 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 17:32:30,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 17:32:30,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 17:32:30,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 17:32:30,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 17:32:30,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 17:32:30,181 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 17:32:30,183 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 17:32:37,964 INFO L? ?]: Removed 1656 outVars from TransFormulas that were not future-live. [2024-11-19 17:32:37,964 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 17:32:38,017 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 17:32:38,018 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 17:32:38,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:32:38 BoogieIcfgContainer [2024-11-19 17:32:38,018 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 17:32:38,020 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 17:32:38,020 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 17:32:38,023 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 17:32:38,023 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:32:26" (1/3) ... [2024-11-19 17:32:38,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3efc1d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:32:38, skipping insertion in model container [2024-11-19 17:32:38,024 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:32:29" (2/3) ... [2024-11-19 17:32:38,024 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3efc1d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:32:38, skipping insertion in model container [2024-11-19 17:32:38,025 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:32:38" (3/3) ... [2024-11-19 17:32:38,026 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label27.c [2024-11-19 17:32:38,040 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 17:32:38,041 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 17:32:38,151 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 17:32:38,158 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;@71f47c4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 17:32:38,158 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 17:32:38,171 INFO L276 IsEmpty]: Start isEmpty. Operand has 2185 states, 2183 states have (on average 1.8708199725148877) internal successors, (4084), 2184 states have internal predecessors, (4084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:32:38,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1669 [2024-11-19 17:32:38,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 17:32:38,263 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 17:32:38,264 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 17:32:38,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 17:32:38,270 INFO L85 PathProgramCache]: Analyzing trace with hash 959611602, now seen corresponding path program 1 times [2024-11-19 17:32:38,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 17:32:38,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038356279] [2024-11-19 17:32:38,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:32:38,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 17:32:38,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:32:42,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 17:32:42,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 17:32:42,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038356279] [2024-11-19 17:32:42,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038356279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 17:32:42,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 17:32:42,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 17:32:42,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912968690] [2024-11-19 17:32:42,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 17:32:42,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 17:32:42,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 17:32:42,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 17:32:42,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 17:32:42,071 INFO L87 Difference]: Start difference. First operand has 2185 states, 2183 states have (on average 1.8708199725148877) internal successors, (4084), 2184 states have internal predecessors, (4084), 0 states have call successors, (0), 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 556.0) internal successors, (1668), 2 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:32:48,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 17:32:48,445 INFO L93 Difference]: Finished difference Result 6175 states and 11683 transitions. [2024-11-19 17:32:48,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 17:32:48,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 556.0) internal successors, (1668), 2 states have internal predecessors, (1668), 0 states have call successors, (0), 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 1668 [2024-11-19 17:32:48,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 17:32:48,502 INFO L225 Difference]: With dead ends: 6175 [2024-11-19 17:32:48,502 INFO L226 Difference]: Without dead ends: 3926 [2024-11-19 17:32:48,514 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 17:32:48,519 INFO L432 NwaCegarLoop]: 1246 mSDtfsCounter, 489 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 5698 mSolverCounterSat, 1714 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 1421 SdHoareTripleChecker+Invalid, 7412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1714 IncrementalHoareTripleChecker+Valid, 5698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-19 17:32:48,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 1421 Invalid, 7412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1714 Valid, 5698 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2024-11-19 17:32:48,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3926 states. [2024-11-19 17:32:48,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3926 to 3906. [2024-11-19 17:32:48,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3906 states, 3905 states have (on average 1.7426376440460947) internal successors, (6805), 3905 states have internal predecessors, (6805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:32:48,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3906 states to 3906 states and 6805 transitions. [2024-11-19 17:32:48,680 INFO L78 Accepts]: Start accepts. Automaton has 3906 states and 6805 transitions. Word has length 1668 [2024-11-19 17:32:48,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 17:32:48,684 INFO L471 AbstractCegarLoop]: Abstraction has 3906 states and 6805 transitions. [2024-11-19 17:32:48,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 556.0) internal successors, (1668), 2 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:32:48,685 INFO L276 IsEmpty]: Start isEmpty. Operand 3906 states and 6805 transitions. [2024-11-19 17:32:48,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1674 [2024-11-19 17:32:48,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 17:32:48,766 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 17:32:48,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 17:32:48,767 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 17:32:48,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 17:32:48,769 INFO L85 PathProgramCache]: Analyzing trace with hash -2036938770, now seen corresponding path program 1 times [2024-11-19 17:32:48,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 17:32:48,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858125457] [2024-11-19 17:32:48,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:32:48,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 17:32:48,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:32:50,177 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 17:32:50,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 17:32:50,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858125457] [2024-11-19 17:32:50,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858125457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 17:32:50,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 17:32:50,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 17:32:50,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635201681] [2024-11-19 17:32:50,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 17:32:50,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 17:32:50,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 17:32:50,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 17:32:50,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 17:32:50,188 INFO L87 Difference]: Start difference. First operand 3906 states and 6805 transitions. Second operand has 3 states, 3 states have (on average 557.6666666666666) internal successors, (1673), 2 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:32:56,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 17:32:56,236 INFO L93 Difference]: Finished difference Result 11354 states and 19932 transitions. [2024-11-19 17:32:56,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 17:32:56,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 557.6666666666666) internal successors, (1673), 2 states have internal predecessors, (1673), 0 states have call successors, (0), 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 1673 [2024-11-19 17:32:56,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 17:32:56,276 INFO L225 Difference]: With dead ends: 11354 [2024-11-19 17:32:56,277 INFO L226 Difference]: Without dead ends: 7450 [2024-11-19 17:32:56,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 17:32:56,286 INFO L432 NwaCegarLoop]: 1352 mSDtfsCounter, 1996 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 5244 mSolverCounterSat, 2353 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1996 SdHoareTripleChecker+Valid, 1575 SdHoareTripleChecker+Invalid, 7597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2353 IncrementalHoareTripleChecker+Valid, 5244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-19 17:32:56,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1996 Valid, 1575 Invalid, 7597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2353 Valid, 5244 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-11-19 17:32:56,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7450 states. [2024-11-19 17:32:56,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7450 to 7366. [2024-11-19 17:32:56,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7366 states, 7365 states have (on average 1.6092328581126951) internal successors, (11852), 7365 states have internal predecessors, (11852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:32:56,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7366 states to 7366 states and 11852 transitions. [2024-11-19 17:32:56,416 INFO L78 Accepts]: Start accepts. Automaton has 7366 states and 11852 transitions. Word has length 1673 [2024-11-19 17:32:56,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 17:32:56,417 INFO L471 AbstractCegarLoop]: Abstraction has 7366 states and 11852 transitions. [2024-11-19 17:32:56,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 557.6666666666666) internal successors, (1673), 2 states have internal predecessors, (1673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:32:56,418 INFO L276 IsEmpty]: Start isEmpty. Operand 7366 states and 11852 transitions. [2024-11-19 17:32:56,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1682 [2024-11-19 17:32:56,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 17:32:56,447 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 17:32:56,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 17:32:56,447 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 17:32:56,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 17:32:56,448 INFO L85 PathProgramCache]: Analyzing trace with hash -2111940100, now seen corresponding path program 1 times [2024-11-19 17:32:56,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 17:32:56,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718131070] [2024-11-19 17:32:56,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:32:56,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 17:32:56,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:32:57,842 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 17:32:57,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 17:32:57,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718131070] [2024-11-19 17:32:57,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718131070] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 17:32:57,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 17:32:57,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 17:32:57,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2728120] [2024-11-19 17:32:57,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 17:32:57,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 17:32:57,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 17:32:57,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 17:32:57,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 17:32:57,851 INFO L87 Difference]: Start difference. First operand 7366 states and 11852 transitions. Second operand has 3 states, 3 states have (on average 559.0) internal successors, (1677), 2 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:33:03,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 17:33:03,548 INFO L93 Difference]: Finished difference Result 21538 states and 34796 transitions. [2024-11-19 17:33:03,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 17:33:03,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 559.0) internal successors, (1677), 2 states have internal predecessors, (1677), 0 states have call successors, (0), 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 1681 [2024-11-19 17:33:03,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 17:33:03,595 INFO L225 Difference]: With dead ends: 21538 [2024-11-19 17:33:03,596 INFO L226 Difference]: Without dead ends: 14174 [2024-11-19 17:33:03,612 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 17:33:03,613 INFO L432 NwaCegarLoop]: 1713 mSDtfsCounter, 2440 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 4820 mSolverCounterSat, 2059 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2440 SdHoareTripleChecker+Valid, 1908 SdHoareTripleChecker+Invalid, 6879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2059 IncrementalHoareTripleChecker+Valid, 4820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-19 17:33:03,614 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2440 Valid, 1908 Invalid, 6879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2059 Valid, 4820 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-19 17:33:03,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14174 states. [2024-11-19 17:33:03,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14174 to 14173. [2024-11-19 17:33:03,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14173 states, 14172 states have (on average 1.45385266723116) internal successors, (20604), 14172 states have internal predecessors, (20604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:33:03,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14173 states to 14173 states and 20604 transitions. [2024-11-19 17:33:03,958 INFO L78 Accepts]: Start accepts. Automaton has 14173 states and 20604 transitions. Word has length 1681 [2024-11-19 17:33:03,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 17:33:03,959 INFO L471 AbstractCegarLoop]: Abstraction has 14173 states and 20604 transitions. [2024-11-19 17:33:03,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 559.0) internal successors, (1677), 2 states have internal predecessors, (1677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:33:03,964 INFO L276 IsEmpty]: Start isEmpty. Operand 14173 states and 20604 transitions. [2024-11-19 17:33:04,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1702 [2024-11-19 17:33:04,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 17:33:04,032 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 17:33:04,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 17:33:04,032 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 17:33:04,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 17:33:04,034 INFO L85 PathProgramCache]: Analyzing trace with hash 434001468, now seen corresponding path program 1 times [2024-11-19 17:33:04,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 17:33:04,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848920099] [2024-11-19 17:33:04,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:33:04,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 17:33:04,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:33:05,290 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 17:33:05,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 17:33:05,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848920099] [2024-11-19 17:33:05,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848920099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 17:33:05,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 17:33:05,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 17:33:05,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200284309] [2024-11-19 17:33:05,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 17:33:05,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 17:33:05,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 17:33:05,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 17:33:05,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 17:33:05,297 INFO L87 Difference]: Start difference. First operand 14173 states and 20604 transitions. Second operand has 3 states, 3 states have (on average 565.6666666666666) internal successors, (1697), 2 states have internal predecessors, (1697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:33:09,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 17:33:09,869 INFO L93 Difference]: Finished difference Result 35133 states and 49953 transitions. [2024-11-19 17:33:09,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 17:33:09,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 565.6666666666666) internal successors, (1697), 2 states have internal predecessors, (1697), 0 states have call successors, (0), 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 1701 [2024-11-19 17:33:09,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 17:33:09,927 INFO L225 Difference]: With dead ends: 35133 [2024-11-19 17:33:09,928 INFO L226 Difference]: Without dead ends: 20962 [2024-11-19 17:33:09,951 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 17:33:09,952 INFO L432 NwaCegarLoop]: 1072 mSDtfsCounter, 3170 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 4772 mSolverCounterSat, 1206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3170 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 5978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1206 IncrementalHoareTripleChecker+Valid, 4772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-11-19 17:33:09,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3170 Valid, 1156 Invalid, 5978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1206 Valid, 4772 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-11-19 17:33:09,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20962 states. [2024-11-19 17:33:10,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20962 to 20962. [2024-11-19 17:33:10,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20962 states, 20961 states have (on average 1.2836219646009255) internal successors, (26906), 20961 states have internal predecessors, (26906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:33:10,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20962 states to 20962 states and 26906 transitions. [2024-11-19 17:33:10,430 INFO L78 Accepts]: Start accepts. Automaton has 20962 states and 26906 transitions. Word has length 1701 [2024-11-19 17:33:10,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 17:33:10,431 INFO L471 AbstractCegarLoop]: Abstraction has 20962 states and 26906 transitions. [2024-11-19 17:33:10,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 565.6666666666666) internal successors, (1697), 2 states have internal predecessors, (1697), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:33:10,432 INFO L276 IsEmpty]: Start isEmpty. Operand 20962 states and 26906 transitions. [2024-11-19 17:33:10,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1744 [2024-11-19 17:33:10,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 17:33:10,484 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 17:33:10,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 17:33:10,485 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 17:33:10,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 17:33:10,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1999763699, now seen corresponding path program 1 times [2024-11-19 17:33:10,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 17:33:10,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275927429] [2024-11-19 17:33:10,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:33:10,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 17:33:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:33:11,567 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 17:33:11,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 17:33:11,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275927429] [2024-11-19 17:33:11,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275927429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 17:33:11,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 17:33:11,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 17:33:11,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193657211] [2024-11-19 17:33:11,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 17:33:11,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 17:33:11,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 17:33:11,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 17:33:11,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 17:33:11,572 INFO L87 Difference]: Start difference. First operand 20962 states and 26906 transitions. Second operand has 3 states, 3 states have (on average 579.6666666666666) internal successors, (1739), 2 states have internal predecessors, (1739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:33:16,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 17:33:16,958 INFO L93 Difference]: Finished difference Result 62311 states and 79968 transitions. [2024-11-19 17:33:16,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 17:33:16,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 579.6666666666666) internal successors, (1739), 2 states have internal predecessors, (1739), 0 states have call successors, (0), 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 1743 [2024-11-19 17:33:16,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 17:33:17,034 INFO L225 Difference]: With dead ends: 62311 [2024-11-19 17:33:17,035 INFO L226 Difference]: Without dead ends: 41351 [2024-11-19 17:33:17,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 17:33:17,067 INFO L432 NwaCegarLoop]: 2053 mSDtfsCounter, 1795 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 5809 mSolverCounterSat, 1395 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1795 SdHoareTripleChecker+Valid, 2346 SdHoareTripleChecker+Invalid, 7204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1395 IncrementalHoareTripleChecker+Valid, 5809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-19 17:33:17,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1795 Valid, 2346 Invalid, 7204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1395 Valid, 5809 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-19 17:33:17,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41351 states. [2024-11-19 17:33:17,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41351 to 41343. [2024-11-19 17:33:17,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41343 states, 41342 states have (on average 1.1994581781239417) internal successors, (49588), 41342 states have internal predecessors, (49588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:33:17,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41343 states to 41343 states and 49588 transitions. [2024-11-19 17:33:17,628 INFO L78 Accepts]: Start accepts. Automaton has 41343 states and 49588 transitions. Word has length 1743 [2024-11-19 17:33:17,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 17:33:17,628 INFO L471 AbstractCegarLoop]: Abstraction has 41343 states and 49588 transitions. [2024-11-19 17:33:17,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 579.6666666666666) internal successors, (1739), 2 states have internal predecessors, (1739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:33:17,629 INFO L276 IsEmpty]: Start isEmpty. Operand 41343 states and 49588 transitions. [2024-11-19 17:33:17,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1762 [2024-11-19 17:33:17,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 17:33:17,710 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 17:33:17,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 17:33:17,710 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 17:33:17,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 17:33:17,711 INFO L85 PathProgramCache]: Analyzing trace with hash -19092895, now seen corresponding path program 1 times [2024-11-19 17:33:17,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 17:33:17,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511570304] [2024-11-19 17:33:17,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:33:17,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 17:33:17,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:33:18,903 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 17:33:18,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 17:33:18,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511570304] [2024-11-19 17:33:18,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511570304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 17:33:18,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 17:33:18,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 17:33:18,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656134934] [2024-11-19 17:33:18,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 17:33:18,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 17:33:18,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 17:33:18,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 17:33:18,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 17:33:18,909 INFO L87 Difference]: Start difference. First operand 41343 states and 49588 transitions. Second operand has 3 states, 3 states have (on average 585.6666666666666) internal successors, (1757), 3 states have internal predecessors, (1757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:33:24,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 17:33:24,654 INFO L93 Difference]: Finished difference Result 103074 states and 125332 transitions. [2024-11-19 17:33:24,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 17:33:24,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 585.6666666666666) internal successors, (1757), 3 states have internal predecessors, (1757), 0 states have call successors, (0), 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 1761 [2024-11-19 17:33:24,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 17:33:24,752 INFO L225 Difference]: With dead ends: 103074 [2024-11-19 17:33:24,752 INFO L226 Difference]: Without dead ends: 61733 [2024-11-19 17:33:24,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 17:33:24,779 INFO L432 NwaCegarLoop]: 3626 mSDtfsCounter, 2030 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 4767 mSolverCounterSat, 2212 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2030 SdHoareTripleChecker+Valid, 3863 SdHoareTripleChecker+Invalid, 6979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2212 IncrementalHoareTripleChecker+Valid, 4767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2024-11-19 17:33:24,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2030 Valid, 3863 Invalid, 6979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2212 Valid, 4767 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2024-11-19 17:33:24,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61733 states. [2024-11-19 17:33:25,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61733 to 61725. [2024-11-19 17:33:25,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61725 states, 61724 states have (on average 1.1645713174778045) internal successors, (71882), 61724 states have internal predecessors, (71882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:33:25,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61725 states to 61725 states and 71882 transitions. [2024-11-19 17:33:25,502 INFO L78 Accepts]: Start accepts. Automaton has 61725 states and 71882 transitions. Word has length 1761 [2024-11-19 17:33:25,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 17:33:25,503 INFO L471 AbstractCegarLoop]: Abstraction has 61725 states and 71882 transitions. [2024-11-19 17:33:25,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 585.6666666666666) internal successors, (1757), 3 states have internal predecessors, (1757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:33:25,504 INFO L276 IsEmpty]: Start isEmpty. Operand 61725 states and 71882 transitions. [2024-11-19 17:33:25,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1775 [2024-11-19 17:33:25,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 17:33:25,582 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 17:33:25,582 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 17:33:25,582 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 17:33:25,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 17:33:25,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1958013644, now seen corresponding path program 1 times [2024-11-19 17:33:25,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 17:33:25,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578976949] [2024-11-19 17:33:25,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:33:25,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 17:33:25,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:33:26,514 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 17:33:26,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 17:33:26,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578976949] [2024-11-19 17:33:26,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578976949] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 17:33:26,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 17:33:26,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 17:33:26,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189029053] [2024-11-19 17:33:26,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 17:33:26,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 17:33:26,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 17:33:26,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 17:33:26,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 17:33:26,519 INFO L87 Difference]: Start difference. First operand 61725 states and 71882 transitions. Second operand has 3 states, 3 states have (on average 591.3333333333334) internal successors, (1774), 2 states have internal predecessors, (1774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:33:32,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 17:33:32,195 INFO L93 Difference]: Finished difference Result 184575 states and 214878 transitions. [2024-11-19 17:33:32,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 17:33:32,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 591.3333333333334) internal successors, (1774), 2 states have internal predecessors, (1774), 0 states have call successors, (0), 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 1774 [2024-11-19 17:33:32,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 17:33:32,434 INFO L225 Difference]: With dead ends: 184575 [2024-11-19 17:33:32,435 INFO L226 Difference]: Without dead ends: 122852 [2024-11-19 17:33:32,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 17:33:32,458 INFO L432 NwaCegarLoop]: 1932 mSDtfsCounter, 2209 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 4509 mSolverCounterSat, 2346 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2209 SdHoareTripleChecker+Valid, 2070 SdHoareTripleChecker+Invalid, 6855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2346 IncrementalHoareTripleChecker+Valid, 4509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-19 17:33:32,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2209 Valid, 2070 Invalid, 6855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2346 Valid, 4509 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-19 17:33:32,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122852 states. [2024-11-19 17:33:33,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122852 to 109256. [2024-11-19 17:33:33,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109256 states, 109255 states have (on average 1.1281314356322365) internal successors, (123254), 109255 states have internal predecessors, (123254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:33:33,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109256 states to 109256 states and 123254 transitions. [2024-11-19 17:33:33,981 INFO L78 Accepts]: Start accepts. Automaton has 109256 states and 123254 transitions. Word has length 1774 [2024-11-19 17:33:33,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 17:33:33,982 INFO L471 AbstractCegarLoop]: Abstraction has 109256 states and 123254 transitions. [2024-11-19 17:33:33,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 591.3333333333334) internal successors, (1774), 2 states have internal predecessors, (1774), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 17:33:33,983 INFO L276 IsEmpty]: Start isEmpty. Operand 109256 states and 123254 transitions. [2024-11-19 17:33:34,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1811 [2024-11-19 17:33:34,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 17:33:34,132 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 17:33:34,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 17:33:34,133 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 17:33:34,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 17:33:34,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1256100157, now seen corresponding path program 1 times [2024-11-19 17:33:34,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 17:33:34,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1357366701] [2024-11-19 17:33:34,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 17:33:34,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 17:33:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 17:33:35,576 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-19 17:33:35,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 17:33:35,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1357366701] [2024-11-19 17:33:35,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1357366701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 17:33:35,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 17:33:35,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 17:33:35,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662995933] [2024-11-19 17:33:35,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 17:33:35,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 17:33:35,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 17:33:35,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 17:33:35,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 17:33:35,584 INFO L87 Difference]: Start difference. First operand 109256 states and 123254 transitions. Second operand has 3 states, 3 states have (on average 568.3333333333334) internal successors, (1705), 2 states have internal predecessors, (1705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)