./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/xcsp/Dubois-070.c --full-output --architecture 32bit


--------------------------------------------------------------------------------


Checking for ERROR reachability
Using default analysis
Version 3061b6dc
Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/xcsp/Dubois-070.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 b124f4fa2472e5467898e0020b8382b91d5239bb08b12140b4820bcea6da62e0
--- Real Ultimate output ---
This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m
[2024-11-18 15:22:59,000 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-18 15:22:59,076 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-11-18 15:22:59,081 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-18 15:22:59,081 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-18 15:22:59,117 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-18 15:22:59,118 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-18 15:22:59,118 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-18 15:22:59,119 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-18 15:22:59,120 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-18 15:22:59,120 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-18 15:22:59,121 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-18 15:22:59,121 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-18 15:22:59,121 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-18 15:22:59,123 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-18 15:22:59,124 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-18 15:22:59,124 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-18 15:22:59,124 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-18 15:22:59,124 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-11-18 15:22:59,125 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-18 15:22:59,125 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-18 15:22:59,128 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-18 15:22:59,129 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-18 15:22:59,129 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-18 15:22:59,129 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-18 15:22:59,129 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-18 15:22:59,130 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-18 15:22:59,130 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-18 15:22:59,130 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-18 15:22:59,131 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-18 15:22:59,131 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-18 15:22:59,131 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-18 15:22:59,131 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 15:22:59,131 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-18 15:22:59,132 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-18 15:22:59,132 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-18 15:22:59,132 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-11-18 15:22:59,132 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-11-18 15:22:59,133 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-18 15:22:59,134 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-18 15:22:59,134 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-18 15:22:59,134 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-18 15:22:59,135 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 -> b124f4fa2472e5467898e0020b8382b91d5239bb08b12140b4820bcea6da62e0
[2024-11-18 15:22:59,372 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-18 15:22:59,398 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-18 15:22:59,402 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-18 15:22:59,403 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-18 15:22:59,403 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-18 15:22:59,404 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/Dubois-070.c
[2024-11-18 15:23:00,912 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-18 15:23:01,221 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-18 15:23:01,223 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/Dubois-070.c
[2024-11-18 15:23:01,241 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e00a1ebb/7857ad1491bd4bac864c8bbd25fc9e3d/FLAG02f7b1bfe
[2024-11-18 15:23:01,496 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e00a1ebb/7857ad1491bd4bac864c8bbd25fc9e3d
[2024-11-18 15:23:01,498 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-18 15:23:01,499 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-11-18 15:23:01,501 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-18 15:23:01,501 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-18 15:23:01,507 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-18 15:23:01,507 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:23:01" (1/1) ...
[2024-11-18 15:23:01,508 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@571d5b42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:01, skipping insertion in model container
[2024-11-18 15:23:01,508 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:23:01" (1/1) ...
[2024-11-18 15:23:01,570 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-18 15:23:02,134 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/xcsp/Dubois-070.c[49920,49933]
[2024-11-18 15:23:02,171 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 15:23:02,181 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-18 15:23:02,360 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/xcsp/Dubois-070.c[49920,49933]
[2024-11-18 15:23:02,446 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-18 15:23:02,487 INFO  L204         MainTranslator]: Completed translation
[2024-11-18 15:23:02,504 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:02 WrapperNode
[2024-11-18 15:23:02,504 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-18 15:23:02,506 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-18 15:23:02,506 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-18 15:23:02,506 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-18 15:23:02,520 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:02" (1/1) ...
[2024-11-18 15:23:02,651 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:02" (1/1) ...
[2024-11-18 15:23:03,305 INFO  L138                Inliner]: procedures = 13, calls = 567, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 13946
[2024-11-18 15:23:03,306 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-18 15:23:03,306 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-18 15:23:03,307 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-18 15:23:03,307 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-18 15:23:03,318 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:02" (1/1) ...
[2024-11-18 15:23:03,318 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:02" (1/1) ...
[2024-11-18 15:23:03,463 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:02" (1/1) ...
[2024-11-18 15:23:03,566 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-18 15:23:03,566 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:02" (1/1) ...
[2024-11-18 15:23:03,567 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:02" (1/1) ...
[2024-11-18 15:23:03,935 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:02" (1/1) ...
[2024-11-18 15:23:04,005 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:02" (1/1) ...
[2024-11-18 15:23:04,058 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:02" (1/1) ...
[2024-11-18 15:23:04,130 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:02" (1/1) ...
[2024-11-18 15:23:04,494 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-18 15:23:04,495 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-18 15:23:04,495 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-18 15:23:04,495 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-18 15:23:04,496 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:02" (1/1) ...
[2024-11-18 15:23:04,510 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-18 15:23:04,528 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 15:23:04,567 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-18 15:23:04,583 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-18 15:23:04,659 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-18 15:23:04,659 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-18 15:23:04,659 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-18 15:23:04,659 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-11-18 15:23:04,660 INFO  L130     BoogieDeclarations]: Found specification of procedure assume
[2024-11-18 15:23:04,660 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume
[2024-11-18 15:23:05,044 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-18 15:23:05,046 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-18 15:23:21,903 INFO  L?                        ?]: Removed 4835 outVars from TransFormulas that were not future-live.
[2024-11-18 15:23:21,903 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-18 15:23:21,992 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-18 15:23:21,992 INFO  L316             CfgBuilder]: Removed 0 assume(true) statements.
[2024-11-18 15:23:21,992 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:23:21 BoogieIcfgContainer
[2024-11-18 15:23:21,993 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-18 15:23:21,995 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-18 15:23:21,995 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-18 15:23:21,998 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-18 15:23:21,998 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:23:01" (1/3) ...
[2024-11-18 15:23:21,999 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1898b344 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:23:21, skipping insertion in model container
[2024-11-18 15:23:21,999 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:02" (2/3) ...
[2024-11-18 15:23:21,999 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1898b344 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:23:21, skipping insertion in model container
[2024-11-18 15:23:22,001 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:23:21" (3/3) ...
[2024-11-18 15:23:22,002 INFO  L112   eAbstractionObserver]: Analyzing ICFG Dubois-070.c
[2024-11-18 15:23:22,019 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-18 15:23:22,019 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-18 15:23:22,185 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-18 15:23:22,193 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;@7bad2b31, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-18 15:23:22,194 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-18 15:23:22,213 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 5541 states, 4978 states have (on average 1.6191241462434713) internal successors, (8060), 4979 states have internal predecessors, (8060), 560 states have call successors, (560), 1 states have call predecessors, (560), 1 states have return successors, (560), 560 states have call predecessors, (560), 560 states have call successors, (560)
[2024-11-18 15:23:22,456 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4694
[2024-11-18 15:23:22,457 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 15:23:22,460 INFO  L215           NwaCegarLoop]: trace histogram [560, 560, 560, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2024-11-18 15:23:22,461 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 15:23:22,466 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 15:23:22,469 INFO  L85        PathProgramCache]: Analyzing trace with hash -267113677, now seen corresponding path program 1 times
[2024-11-18 15:23:22,478 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 15:23:22,479 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112954819]
[2024-11-18 15:23:22,481 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 15:23:22,482 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 15:23:22,874 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 15:23:27,902 INFO  L134       CoverageAnalysis]: Checked inductivity of 626080 backedges. 0 proven. 1118 refuted. 0 times theorem prover too weak. 624962 trivial. 0 not checked.
[2024-11-18 15:23:27,903 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 15:23:27,904 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112954819]
[2024-11-18 15:23:27,905 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112954819] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 15:23:27,906 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793261336]
[2024-11-18 15:23:27,907 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 15:23:27,907 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 15:23:27,908 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 15:23:27,910 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-18 15:23:27,911 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-18 15:23:30,029 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 15:23:30,071 INFO  L255         TraceCheckSpWp]: Trace formula consists of 10246 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-18 15:23:30,161 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 15:23:30,517 INFO  L134       CoverageAnalysis]: Checked inductivity of 626080 backedges. 1118 proven. 0 refuted. 0 times theorem prover too weak. 624962 trivial. 0 not checked.
[2024-11-18 15:23:30,518 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 15:23:30,518 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793261336] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 15:23:30,519 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 15:23:30,520 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2
[2024-11-18 15:23:30,522 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506589943]
[2024-11-18 15:23:30,522 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 15:23:30,533 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-18 15:23:30,534 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 15:23:30,559 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-18 15:23:30,560 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-18 15:23:30,576 INFO  L87              Difference]: Start difference. First operand  has 5541 states, 4978 states have (on average 1.6191241462434713) internal successors, (8060), 4979 states have internal predecessors, (8060), 560 states have call successors, (560), 1 states have call predecessors, (560), 1 states have return successors, (560), 560 states have call predecessors, (560), 560 states have call successors, (560) Second operand  has 2 states, 2 states have (on average 949.0) internal successors, (1898), 2 states have internal predecessors, (1898), 2 states have call successors, (560), 2 states have call predecessors, (560), 1 states have return successors, (560), 1 states have call predecessors, (560), 2 states have call successors, (560)
[2024-11-18 15:23:30,873 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 15:23:30,873 INFO  L93              Difference]: Finished difference Result 11076 states and 18914 transitions.
[2024-11-18 15:23:30,874 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-18 15:23:30,877 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 949.0) internal successors, (1898), 2 states have internal predecessors, (1898), 2 states have call successors, (560), 2 states have call predecessors, (560), 1 states have return successors, (560), 1 states have call predecessors, (560), 2 states have call successors, (560) Word has length 4693
[2024-11-18 15:23:30,878 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 15:23:30,917 INFO  L225             Difference]: With dead ends: 11076
[2024-11-18 15:23:30,917 INFO  L226             Difference]: Without dead ends: 5538
[2024-11-18 15:23:30,938 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4694 GetRequests, 4694 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-18 15:23:30,943 INFO  L432           NwaCegarLoop]: 9176 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9176 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 15:23:30,944 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9176 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 15:23:30,970 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5538 states.
[2024-11-18 15:23:31,307 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5538 to 5538.
[2024-11-18 15:23:31,319 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5538 states, 4976 states have (on average 1.6189710610932475) internal successors, (8056), 4976 states have internal predecessors, (8056), 560 states have call successors, (560), 1 states have call predecessors, (560), 1 states have return successors, (560), 560 states have call predecessors, (560), 560 states have call successors, (560)
[2024-11-18 15:23:31,340 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5538 states to 5538 states and 9176 transitions.
[2024-11-18 15:23:31,346 INFO  L78                 Accepts]: Start accepts. Automaton has 5538 states and 9176 transitions. Word has length 4693
[2024-11-18 15:23:31,347 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 15:23:31,348 INFO  L471      AbstractCegarLoop]: Abstraction has 5538 states and 9176 transitions.
[2024-11-18 15:23:31,349 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 949.0) internal successors, (1898), 2 states have internal predecessors, (1898), 2 states have call successors, (560), 2 states have call predecessors, (560), 1 states have return successors, (560), 1 states have call predecessors, (560), 2 states have call successors, (560)
[2024-11-18 15:23:31,350 INFO  L276                IsEmpty]: Start isEmpty. Operand 5538 states and 9176 transitions.
[2024-11-18 15:23:31,517 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4694
[2024-11-18 15:23:31,517 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 15:23:31,519 INFO  L215           NwaCegarLoop]: trace histogram [560, 560, 560, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2024-11-18 15:23:31,547 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-18 15:23:31,720 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0
[2024-11-18 15:23:31,721 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 15:23:31,721 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 15:23:31,723 INFO  L85        PathProgramCache]: Analyzing trace with hash -1583309645, now seen corresponding path program 1 times
[2024-11-18 15:23:31,723 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 15:23:31,724 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681085670]
[2024-11-18 15:23:31,724 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 15:23:31,725 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 15:23:32,149 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 15:23:40,274 INFO  L134       CoverageAnalysis]: Checked inductivity of 626080 backedges. 1260 proven. 417 refuted. 0 times theorem prover too weak. 624403 trivial. 0 not checked.
[2024-11-18 15:23:40,274 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 15:23:40,275 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681085670]
[2024-11-18 15:23:40,275 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681085670] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 15:23:40,275 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719023753]
[2024-11-18 15:23:40,276 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 15:23:40,276 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 15:23:40,277 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 15:23:40,278 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-18 15:23:40,280 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-18 15:23:42,076 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 15:23:42,114 INFO  L255         TraceCheckSpWp]: Trace formula consists of 10246 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-18 15:23:42,177 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-18 15:23:42,380 INFO  L134       CoverageAnalysis]: Checked inductivity of 626080 backedges. 235336 proven. 0 refuted. 0 times theorem prover too weak. 390744 trivial. 0 not checked.
[2024-11-18 15:23:42,381 INFO  L307         TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2024-11-18 15:23:42,382 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [719023753] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 15:23:42,382 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-18 15:23:42,383 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 6
[2024-11-18 15:23:42,383 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475846373]
[2024-11-18 15:23:42,384 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 15:23:42,390 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-11-18 15:23:42,390 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 15:23:42,393 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-11-18 15:23:42,394 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-18 15:23:42,399 INFO  L87              Difference]: Start difference. First operand 5538 states and 9176 transitions. Second operand  has 6 states, 5 states have (on average 380.4) internal successors, (1902), 6 states have internal predecessors, (1902), 3 states have call successors, (560), 2 states have call predecessors, (560), 3 states have return successors, (560), 2 states have call predecessors, (560), 3 states have call successors, (560)
[2024-11-18 15:23:45,389 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 15:23:45,389 INFO  L93              Difference]: Finished difference Result 10415 states and 17252 transitions.
[2024-11-18 15:23:45,390 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-18 15:23:45,395 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 5 states have (on average 380.4) internal successors, (1902), 6 states have internal predecessors, (1902), 3 states have call successors, (560), 2 states have call predecessors, (560), 3 states have return successors, (560), 2 states have call predecessors, (560), 3 states have call successors, (560) Word has length 4693
[2024-11-18 15:23:45,404 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 15:23:45,430 INFO  L225             Difference]: With dead ends: 10415
[2024-11-18 15:23:45,431 INFO  L226             Difference]: Without dead ends: 5540
[2024-11-18 15:23:45,441 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4698 GetRequests, 4694 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2024-11-18 15:23:45,443 INFO  L432           NwaCegarLoop]: 8612 mSDtfsCounter, 1 mSDsluCounter, 33315 mSDsCounter, 0 mSdLazyCounter, 3949 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 41927 SdHoareTripleChecker+Invalid, 3950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time
[2024-11-18 15:23:45,444 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 41927 Invalid, 3950 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 3949 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time]
[2024-11-18 15:23:45,453 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5540 states.
[2024-11-18 15:23:45,738 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5540 to 5540.
[2024-11-18 15:23:45,748 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5540 states, 4978 states have (on average 1.6187223784652471) internal successors, (8058), 4978 states have internal predecessors, (8058), 560 states have call successors, (560), 1 states have call predecessors, (560), 1 states have return successors, (560), 560 states have call predecessors, (560), 560 states have call successors, (560)
[2024-11-18 15:23:45,767 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5540 states to 5540 states and 9178 transitions.
[2024-11-18 15:23:45,771 INFO  L78                 Accepts]: Start accepts. Automaton has 5540 states and 9178 transitions. Word has length 4693
[2024-11-18 15:23:45,782 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 15:23:45,782 INFO  L471      AbstractCegarLoop]: Abstraction has 5540 states and 9178 transitions.
[2024-11-18 15:23:45,783 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 5 states have (on average 380.4) internal successors, (1902), 6 states have internal predecessors, (1902), 3 states have call successors, (560), 2 states have call predecessors, (560), 3 states have return successors, (560), 2 states have call predecessors, (560), 3 states have call successors, (560)
[2024-11-18 15:23:45,783 INFO  L276                IsEmpty]: Start isEmpty. Operand 5540 states and 9178 transitions.
[2024-11-18 15:23:45,902 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4695
[2024-11-18 15:23:45,902 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 15:23:45,903 INFO  L215           NwaCegarLoop]: trace histogram [560, 560, 560, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2024-11-18 15:23:45,945 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-18 15:23:46,104 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2024-11-18 15:23:46,105 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 15:23:46,105 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 15:23:46,107 INFO  L85        PathProgramCache]: Analyzing trace with hash 1820751127, now seen corresponding path program 1 times
[2024-11-18 15:23:46,108 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 15:23:46,108 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262213789]
[2024-11-18 15:23:46,109 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 15:23:46,109 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 15:23:46,386 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 15:23:49,797 INFO  L134       CoverageAnalysis]: Checked inductivity of 626080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 626080 trivial. 0 not checked.
[2024-11-18 15:23:49,797 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 15:23:49,797 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262213789]
[2024-11-18 15:23:49,798 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262213789] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 15:23:49,798 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 15:23:49,799 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-11-18 15:23:49,799 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889156450]
[2024-11-18 15:23:49,800 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 15:23:49,808 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-18 15:23:49,808 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 15:23:49,813 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-18 15:23:49,814 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-11-18 15:23:49,815 INFO  L87              Difference]: Start difference. First operand 5540 states and 9178 transitions. Second operand  has 5 states, 5 states have (on average 379.4) internal successors, (1897), 5 states have internal predecessors, (1897), 2 states have call successors, (560), 1 states have call predecessors, (560), 1 states have return successors, (560), 2 states have call predecessors, (560), 2 states have call successors, (560)
[2024-11-18 15:23:50,092 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 15:23:50,093 INFO  L93              Difference]: Finished difference Result 10435 states and 17282 transitions.
[2024-11-18 15:23:50,093 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-18 15:23:50,095 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 379.4) internal successors, (1897), 5 states have internal predecessors, (1897), 2 states have call successors, (560), 1 states have call predecessors, (560), 1 states have return successors, (560), 2 states have call predecessors, (560), 2 states have call successors, (560) Word has length 4694
[2024-11-18 15:23:50,100 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 15:23:50,127 INFO  L225             Difference]: With dead ends: 10435
[2024-11-18 15:23:50,127 INFO  L226             Difference]: Without dead ends: 5549
[2024-11-18 15:23:50,138 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-11-18 15:23:50,139 INFO  L432           NwaCegarLoop]: 9172 mSDtfsCounter, 10 mSDsluCounter, 27493 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 36665 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 15:23:50,141 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 36665 Invalid, 40 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 15:23:50,152 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5549 states.
[2024-11-18 15:23:50,463 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5549 to 5549.
[2024-11-18 15:23:50,471 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5549 states, 4987 states have (on average 1.6184078604371366) internal successors, (8071), 4987 states have internal predecessors, (8071), 560 states have call successors, (560), 1 states have call predecessors, (560), 1 states have return successors, (560), 560 states have call predecessors, (560), 560 states have call successors, (560)
[2024-11-18 15:23:50,643 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5549 states to 5549 states and 9191 transitions.
[2024-11-18 15:23:50,646 INFO  L78                 Accepts]: Start accepts. Automaton has 5549 states and 9191 transitions. Word has length 4694
[2024-11-18 15:23:50,651 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 15:23:50,651 INFO  L471      AbstractCegarLoop]: Abstraction has 5549 states and 9191 transitions.
[2024-11-18 15:23:50,652 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 379.4) internal successors, (1897), 5 states have internal predecessors, (1897), 2 states have call successors, (560), 1 states have call predecessors, (560), 1 states have return successors, (560), 2 states have call predecessors, (560), 2 states have call successors, (560)
[2024-11-18 15:23:50,653 INFO  L276                IsEmpty]: Start isEmpty. Operand 5549 states and 9191 transitions.
[2024-11-18 15:23:50,767 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4695
[2024-11-18 15:23:50,768 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 15:23:50,770 INFO  L215           NwaCegarLoop]: trace histogram [560, 560, 560, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2024-11-18 15:23:50,770 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-11-18 15:23:50,771 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 15:23:50,772 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 15:23:50,773 INFO  L85        PathProgramCache]: Analyzing trace with hash 1473612285, now seen corresponding path program 1 times
[2024-11-18 15:23:50,774 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 15:23:50,775 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882573003]
[2024-11-18 15:23:50,776 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 15:23:50,777 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 15:23:51,162 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 15:23:54,759 INFO  L134       CoverageAnalysis]: Checked inductivity of 626080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 626080 trivial. 0 not checked.
[2024-11-18 15:23:54,760 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 15:23:54,761 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882573003]
[2024-11-18 15:23:54,763 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882573003] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 15:23:54,763 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 15:23:54,764 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-11-18 15:23:54,764 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348701822]
[2024-11-18 15:23:54,765 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 15:23:54,770 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-18 15:23:54,771 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 15:23:54,777 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-18 15:23:54,777 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 15:23:54,778 INFO  L87              Difference]: Start difference. First operand 5549 states and 9191 transitions. Second operand  has 3 states, 3 states have (on average 632.3333333333334) internal successors, (1897), 3 states have internal predecessors, (1897), 2 states have call successors, (560), 1 states have call predecessors, (560), 1 states have return successors, (560), 2 states have call predecessors, (560), 2 states have call successors, (560)
[2024-11-18 15:23:54,917 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 15:23:54,918 INFO  L93              Difference]: Finished difference Result 10432 states and 17275 transitions.
[2024-11-18 15:23:54,918 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-18 15:23:54,920 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 632.3333333333334) internal successors, (1897), 3 states have internal predecessors, (1897), 2 states have call successors, (560), 1 states have call predecessors, (560), 1 states have return successors, (560), 2 states have call predecessors, (560), 2 states have call successors, (560) Word has length 4694
[2024-11-18 15:23:54,924 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 15:23:54,952 INFO  L225             Difference]: With dead ends: 10432
[2024-11-18 15:23:54,953 INFO  L226             Difference]: Without dead ends: 5550
[2024-11-18 15:23:54,962 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-18 15:23:54,964 INFO  L432           NwaCegarLoop]: 9175 mSDtfsCounter, 0 mSDsluCounter, 9166 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18341 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 15:23:54,965 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18341 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 15:23:54,978 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5550 states.
[2024-11-18 15:23:55,305 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5550 to 5550.
[2024-11-18 15:23:55,313 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5550 states, 4988 states have (on average 1.618083400160385) internal successors, (8071), 4988 states have internal predecessors, (8071), 560 states have call successors, (560), 1 states have call predecessors, (560), 1 states have return successors, (560), 560 states have call predecessors, (560), 560 states have call successors, (560)
[2024-11-18 15:23:55,332 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5550 states to 5550 states and 9191 transitions.
[2024-11-18 15:23:55,335 INFO  L78                 Accepts]: Start accepts. Automaton has 5550 states and 9191 transitions. Word has length 4694
[2024-11-18 15:23:55,339 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 15:23:55,339 INFO  L471      AbstractCegarLoop]: Abstraction has 5550 states and 9191 transitions.
[2024-11-18 15:23:55,341 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 632.3333333333334) internal successors, (1897), 3 states have internal predecessors, (1897), 2 states have call successors, (560), 1 states have call predecessors, (560), 1 states have return successors, (560), 2 states have call predecessors, (560), 2 states have call successors, (560)
[2024-11-18 15:23:55,341 INFO  L276                IsEmpty]: Start isEmpty. Operand 5550 states and 9191 transitions.
[2024-11-18 15:23:55,663 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4696
[2024-11-18 15:23:55,663 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 15:23:55,665 INFO  L215           NwaCegarLoop]: trace histogram [560, 560, 560, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2024-11-18 15:23:55,665 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-11-18 15:23:55,665 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 15:23:55,666 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 15:23:55,667 INFO  L85        PathProgramCache]: Analyzing trace with hash -123888179, now seen corresponding path program 1 times
[2024-11-18 15:23:55,667 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 15:23:55,667 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664682666]
[2024-11-18 15:23:55,668 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 15:23:55,668 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 15:23:55,921 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 15:23:59,005 INFO  L134       CoverageAnalysis]: Checked inductivity of 626080 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 626080 trivial. 0 not checked.
[2024-11-18 15:23:59,005 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 15:23:59,005 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664682666]
[2024-11-18 15:23:59,006 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664682666] provided 1 perfect and 0 imperfect interpolant sequences
[2024-11-18 15:23:59,006 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-11-18 15:23:59,006 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-11-18 15:23:59,007 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760938913]
[2024-11-18 15:23:59,007 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-18 15:23:59,011 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-18 15:23:59,011 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-11-18 15:23:59,014 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-18 15:23:59,014 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 15:23:59,015 INFO  L87              Difference]: Start difference. First operand 5550 states and 9191 transitions. Second operand  has 4 states, 4 states have (on average 474.5) internal successors, (1898), 4 states have internal predecessors, (1898), 2 states have call successors, (560), 1 states have call predecessors, (560), 1 states have return successors, (560), 2 states have call predecessors, (560), 2 states have call successors, (560)
[2024-11-18 15:23:59,147 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-18 15:23:59,148 INFO  L93              Difference]: Finished difference Result 10464 states and 17324 transitions.
[2024-11-18 15:23:59,148 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-11-18 15:23:59,150 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 474.5) internal successors, (1898), 4 states have internal predecessors, (1898), 2 states have call successors, (560), 1 states have call predecessors, (560), 1 states have return successors, (560), 2 states have call predecessors, (560), 2 states have call successors, (560) Word has length 4695
[2024-11-18 15:23:59,153 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-18 15:23:59,181 INFO  L225             Difference]: With dead ends: 10464
[2024-11-18 15:23:59,185 INFO  L226             Difference]: Without dead ends: 5560
[2024-11-18 15:23:59,194 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-11-18 15:23:59,194 INFO  L432           NwaCegarLoop]: 9172 mSDtfsCounter, 9 mSDsluCounter, 18331 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 27503 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-18 15:23:59,195 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 27503 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-18 15:23:59,202 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5560 states.
[2024-11-18 15:23:59,714 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5560 to 5560.
[2024-11-18 15:23:59,722 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5560 states, 4998 states have (on average 1.6178471388555422) internal successors, (8086), 4998 states have internal predecessors, (8086), 560 states have call successors, (560), 1 states have call predecessors, (560), 1 states have return successors, (560), 560 states have call predecessors, (560), 560 states have call successors, (560)
[2024-11-18 15:23:59,740 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5560 states to 5560 states and 9206 transitions.
[2024-11-18 15:23:59,743 INFO  L78                 Accepts]: Start accepts. Automaton has 5560 states and 9206 transitions. Word has length 4695
[2024-11-18 15:23:59,747 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-18 15:23:59,747 INFO  L471      AbstractCegarLoop]: Abstraction has 5560 states and 9206 transitions.
[2024-11-18 15:23:59,749 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 474.5) internal successors, (1898), 4 states have internal predecessors, (1898), 2 states have call successors, (560), 1 states have call predecessors, (560), 1 states have return successors, (560), 2 states have call predecessors, (560), 2 states have call successors, (560)
[2024-11-18 15:23:59,749 INFO  L276                IsEmpty]: Start isEmpty. Operand 5560 states and 9206 transitions.
[2024-11-18 15:24:00,000 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4696
[2024-11-18 15:24:00,000 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-18 15:24:00,005 INFO  L215           NwaCegarLoop]: trace histogram [560, 560, 560, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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]
[2024-11-18 15:24:00,005 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-11-18 15:24:00,006 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-18 15:24:00,006 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-18 15:24:00,008 INFO  L85        PathProgramCache]: Analyzing trace with hash -1139033767, now seen corresponding path program 1 times
[2024-11-18 15:24:00,008 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-11-18 15:24:00,008 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128657667]
[2024-11-18 15:24:00,009 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 15:24:00,009 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-11-18 15:24:00,301 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 15:24:03,919 INFO  L134       CoverageAnalysis]: Checked inductivity of 626080 backedges. 1263 proven. 414 refuted. 0 times theorem prover too weak. 624403 trivial. 0 not checked.
[2024-11-18 15:24:03,920 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-11-18 15:24:03,920 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128657667]
[2024-11-18 15:24:03,920 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1128657667] provided 0 perfect and 1 imperfect interpolant sequences
[2024-11-18 15:24:03,920 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1672348793]
[2024-11-18 15:24:03,922 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-18 15:24:03,922 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-18 15:24:03,922 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-18 15:24:03,923 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-18 15:24:03,924 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-18 15:24:05,513 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-18 15:24:05,547 INFO  L255         TraceCheckSpWp]: Trace formula consists of 10252 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-18 15:24:05,609 INFO  L278         TraceCheckSpWp]: Computing forward predicates...