./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.4.prop1-func-interl.c --full-output --architecture 64bit


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


Checking for ERROR reachability
Using default analysis
Version 61a67961
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/hardware-verification-bv/btor2c-lazyMod.telephony.4.prop1-func-interl.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 64bit --witnessprinter.graph.data.programhash af4406295bba4931a09fe5e1b298f76c629de8bcf0ce50103cf375e6c315bcbc
--- Real Ultimate output ---
This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m
[2024-10-14 07:03:48,310 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-10-14 07:03:48,379 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-10-14 07:03:48,386 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-10-14 07:03:48,387 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-10-14 07:03:48,436 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-10-14 07:03:48,436 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-10-14 07:03:48,437 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-10-14 07:03:48,448 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-10-14 07:03:48,448 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-10-14 07:03:48,449 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-10-14 07:03:48,450 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-10-14 07:03:48,451 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-10-14 07:03:48,452 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-10-14 07:03:48,452 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-10-14 07:03:48,452 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-10-14 07:03:48,453 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-10-14 07:03:48,453 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-10-14 07:03:48,453 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-10-14 07:03:48,453 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-10-14 07:03:48,454 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-10-14 07:03:48,454 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-10-14 07:03:48,455 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-10-14 07:03:48,455 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-10-14 07:03:48,455 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-10-14 07:03:48,456 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-10-14 07:03:48,456 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-10-14 07:03:48,456 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-10-14 07:03:48,456 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-10-14 07:03:48,457 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-14 07:03:48,457 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-10-14 07:03:48,457 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-10-14 07:03:48,458 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-10-14 07:03:48,458 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-10-14 07:03:48,458 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-10-14 07:03:48,458 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-10-14 07:03:48,459 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-10-14 07:03:48,459 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-10-14 07:03:48,459 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-10-14 07:03:48,460 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 -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> af4406295bba4931a09fe5e1b298f76c629de8bcf0ce50103cf375e6c315bcbc
[2024-10-14 07:03:48,695 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-10-14 07:03:48,724 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-10-14 07:03:48,728 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-10-14 07:03:48,729 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-10-14 07:03:48,729 INFO  L274        PluginConnector]: CDTParser initialized
[2024-10-14 07:03:48,731 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.4.prop1-func-interl.c
[2024-10-14 07:03:50,165 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-10-14 07:03:50,573 INFO  L384              CDTParser]: Found 1 translation units.
[2024-10-14 07:03:50,573 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.4.prop1-func-interl.c
[2024-10-14 07:03:50,606 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/876aaf8bc/a3346b765342450d901e702ccc9b26f4/FLAGefde01c17
[2024-10-14 07:03:50,619 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/876aaf8bc/a3346b765342450d901e702ccc9b26f4
[2024-10-14 07:03:50,621 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-10-14 07:03:50,622 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-10-14 07:03:50,633 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-10-14 07:03:50,633 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-10-14 07:03:50,639 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-10-14 07:03:50,639 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:03:50" (1/1) ...
[2024-10-14 07:03:50,640 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15ba6248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:50, skipping insertion in model container
[2024-10-14 07:03:50,640 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:03:50" (1/1) ...
[2024-10-14 07:03:50,779 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-10-14 07:03:51,050 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.4.prop1-func-interl.c[1176,1189]
[2024-10-14 07:03:51,773 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-14 07:03:51,783 INFO  L200         MainTranslator]: Completed pre-run
[2024-10-14 07:03:51,800 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.telephony.4.prop1-func-interl.c[1176,1189]
[2024-10-14 07:03:52,286 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-14 07:03:52,303 INFO  L204         MainTranslator]: Completed translation
[2024-10-14 07:03:52,304 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:52 WrapperNode
[2024-10-14 07:03:52,304 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-10-14 07:03:52,305 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-10-14 07:03:52,305 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-10-14 07:03:52,306 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-10-14 07:03:52,311 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:52" (1/1) ...
[2024-10-14 07:03:52,476 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:52" (1/1) ...
[2024-10-14 07:03:54,941 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22208
[2024-10-14 07:03:54,942 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-10-14 07:03:54,943 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-10-14 07:03:54,943 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-10-14 07:03:54,943 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-10-14 07:03:54,954 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:52" (1/1) ...
[2024-10-14 07:03:54,954 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:52" (1/1) ...
[2024-10-14 07:03:55,738 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:52" (1/1) ...
[2024-10-14 07:03:56,123 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].
[2024-10-14 07:03:56,124 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:52" (1/1) ...
[2024-10-14 07:03:56,124 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:52" (1/1) ...
[2024-10-14 07:03:57,163 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:52" (1/1) ...
[2024-10-14 07:03:57,261 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:52" (1/1) ...
[2024-10-14 07:03:57,388 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:52" (1/1) ...
[2024-10-14 07:03:57,476 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:52" (1/1) ...
[2024-10-14 07:03:57,852 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-10-14 07:03:57,853 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-10-14 07:03:57,854 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-10-14 07:03:57,854 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-10-14 07:03:57,854 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:52" (1/1) ...
[2024-10-14 07:03:57,871 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-14 07:03:57,880 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-10-14 07:03:57,894 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)
[2024-10-14 07:03:57,896 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
[2024-10-14 07:03:57,933 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-10-14 07:03:57,933 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-10-14 07:03:57,933 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-10-14 07:03:57,933 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-10-14 07:03:59,075 INFO  L238             CfgBuilder]: Building ICFG
[2024-10-14 07:03:59,077 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-10-14 07:04:49,422 INFO  L?                        ?]: Removed 12511 outVars from TransFormulas that were not future-live.
[2024-10-14 07:04:49,422 INFO  L287             CfgBuilder]: Performing block encoding
[2024-10-14 07:04:49,737 INFO  L309             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-10-14 07:04:49,738 INFO  L314             CfgBuilder]: Removed 1 assume(true) statements.
[2024-10-14 07:04:49,738 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:04:49 BoogieIcfgContainer
[2024-10-14 07:04:49,740 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-10-14 07:04:49,743 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-10-14 07:04:49,743 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-10-14 07:04:49,747 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-10-14 07:04:49,747 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:03:50" (1/3) ...
[2024-10-14 07:04:49,749 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d657742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:04:49, skipping insertion in model container
[2024-10-14 07:04:49,749 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:52" (2/3) ...
[2024-10-14 07:04:49,750 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d657742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:04:49, skipping insertion in model container
[2024-10-14 07:04:49,750 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:04:49" (3/3) ...
[2024-10-14 07:04:49,751 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.telephony.4.prop1-func-interl.c
[2024-10-14 07:04:49,766 INFO  L209   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-10-14 07:04:49,767 INFO  L149   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-10-14 07:04:49,955 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-10-14 07:04:49,962 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;@4373ae51, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-14 07:04:49,963 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-14 07:04:49,989 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 7851 states, 7849 states have (on average 1.5041406548604919) internal successors, (11806), 7850 states have internal predecessors, (11806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-14 07:04:50,026 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 309
[2024-10-14 07:04:50,027 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-14 07:04:50,028 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]
[2024-10-14 07:04:50,028 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-14 07:04:50,032 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-14 07:04:50,033 INFO  L85        PathProgramCache]: Analyzing trace with hash -1849883339, now seen corresponding path program 1 times
[2024-10-14 07:04:50,040 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-14 07:04:50,040 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327117117]
[2024-10-14 07:04:50,040 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-14 07:04:50,041 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-14 07:04:50,489 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-14 07:04:51,638 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-14 07:04:51,639 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-14 07:04:51,639 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327117117]
[2024-10-14 07:04:51,640 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327117117] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-14 07:04:51,640 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-14 07:04:51,640 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-14 07:04:51,642 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342876938]
[2024-10-14 07:04:51,643 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-14 07:04:51,649 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-14 07:04:51,650 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-14 07:04:51,670 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-14 07:04:51,671 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-14 07:04:51,689 INFO  L87              Difference]: Start difference. First operand  has 7851 states, 7849 states have (on average 1.5041406548604919) internal successors, (11806), 7850 states have internal predecessors, (11806), 0 states have call successors, (0), 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 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-14 07:04:52,050 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-14 07:04:52,051 INFO  L93              Difference]: Finished difference Result 15410 states and 23176 transitions.
[2024-10-14 07:04:52,052 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-14 07:04:52,054 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 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 308
[2024-10-14 07:04:52,057 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-14 07:04:52,109 INFO  L225             Difference]: With dead ends: 15410
[2024-10-14 07:04:52,109 INFO  L226             Difference]: Without dead ends: 7852
[2024-10-14 07:04:52,129 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
[2024-10-14 07:04:52,133 INFO  L432           NwaCegarLoop]: 11801 mSDtfsCounter, 0 mSDsluCounter, 23597 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35398 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-14 07:04:52,134 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35398 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-14 07:04:52,167 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7852 states.
[2024-10-14 07:04:52,325 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7852 to 7852.
[2024-10-14 07:04:52,339 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7852 states, 7851 states have (on average 1.503757483123169) internal successors, (11806), 7851 states have internal predecessors, (11806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-14 07:04:52,360 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7852 states to 7852 states and 11806 transitions.
[2024-10-14 07:04:52,362 INFO  L78                 Accepts]: Start accepts. Automaton has 7852 states and 11806 transitions. Word has length 308
[2024-10-14 07:04:52,363 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-14 07:04:52,363 INFO  L471      AbstractCegarLoop]: Abstraction has 7852 states and 11806 transitions.
[2024-10-14 07:04:52,364 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-14 07:04:52,364 INFO  L276                IsEmpty]: Start isEmpty. Operand 7852 states and 11806 transitions.
[2024-10-14 07:04:52,368 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 310
[2024-10-14 07:04:52,368 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-14 07:04:52,368 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-14 07:04:52,369 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-10-14 07:04:52,369 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-14 07:04:52,369 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-14 07:04:52,370 INFO  L85        PathProgramCache]: Analyzing trace with hash -1510111532, now seen corresponding path program 1 times
[2024-10-14 07:04:52,370 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-14 07:04:52,370 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849968335]
[2024-10-14 07:04:52,370 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-14 07:04:52,371 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-14 07:04:52,544 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-14 07:04:53,213 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-14 07:04:53,216 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-14 07:04:53,216 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849968335]
[2024-10-14 07:04:53,217 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849968335] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-14 07:04:53,217 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-14 07:04:53,217 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-14 07:04:53,217 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005260019]
[2024-10-14 07:04:53,217 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-14 07:04:53,218 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-14 07:04:53,219 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-14 07:04:53,219 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-14 07:04:53,219 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-14 07:04:53,220 INFO  L87              Difference]: Start difference. First operand 7852 states and 11806 transitions. Second operand  has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-14 07:04:53,446 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-14 07:04:53,446 INFO  L93              Difference]: Finished difference Result 15413 states and 23176 transitions.
[2024-10-14 07:04:53,447 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-14 07:04:53,451 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 0 states have call successors, (0), 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 309
[2024-10-14 07:04:53,452 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-14 07:04:53,483 INFO  L225             Difference]: With dead ends: 15413
[2024-10-14 07:04:53,483 INFO  L226             Difference]: Without dead ends: 7854
[2024-10-14 07:04:53,495 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-14 07:04:53,496 INFO  L432           NwaCegarLoop]: 11801 mSDtfsCounter, 0 mSDsluCounter, 23594 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35395 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-14 07:04:53,497 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35395 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-14 07:04:53,510 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7854 states.
[2024-10-14 07:04:53,629 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7854 to 7854.
[2024-10-14 07:04:53,643 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7854 states, 7853 states have (on average 1.50362918629823) internal successors, (11808), 7853 states have internal predecessors, (11808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-14 07:04:53,665 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7854 states to 7854 states and 11808 transitions.
[2024-10-14 07:04:53,665 INFO  L78                 Accepts]: Start accepts. Automaton has 7854 states and 11808 transitions. Word has length 309
[2024-10-14 07:04:53,666 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-14 07:04:53,666 INFO  L471      AbstractCegarLoop]: Abstraction has 7854 states and 11808 transitions.
[2024-10-14 07:04:53,667 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-14 07:04:53,667 INFO  L276                IsEmpty]: Start isEmpty. Operand 7854 states and 11808 transitions.
[2024-10-14 07:04:53,671 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 311
[2024-10-14 07:04:53,671 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-14 07:04:53,671 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]
[2024-10-14 07:04:53,672 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-10-14 07:04:53,672 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-14 07:04:53,672 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-14 07:04:53,673 INFO  L85        PathProgramCache]: Analyzing trace with hash -666781202, now seen corresponding path program 1 times
[2024-10-14 07:04:53,673 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-14 07:04:53,673 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702272160]
[2024-10-14 07:04:53,673 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-14 07:04:53,674 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-14 07:04:53,801 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-14 07:04:54,236 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-14 07:04:54,236 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-14 07:04:54,236 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702272160]
[2024-10-14 07:04:54,237 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702272160] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-14 07:04:54,237 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-14 07:04:54,237 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-14 07:04:54,237 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437599635]
[2024-10-14 07:04:54,239 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-14 07:04:54,240 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-14 07:04:54,240 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-14 07:04:54,241 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-14 07:04:54,242 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-14 07:04:54,242 INFO  L87              Difference]: Start difference. First operand 7854 states and 11808 transitions. Second operand  has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-14 07:04:54,463 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-14 07:04:54,464 INFO  L93              Difference]: Finished difference Result 15417 states and 23180 transitions.
[2024-10-14 07:04:54,464 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-14 07:04:54,465 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 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 310
[2024-10-14 07:04:54,465 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-14 07:04:54,493 INFO  L225             Difference]: With dead ends: 15417
[2024-10-14 07:04:54,494 INFO  L226             Difference]: Without dead ends: 7856
[2024-10-14 07:04:54,506 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-14 07:04:54,508 INFO  L432           NwaCegarLoop]: 11801 mSDtfsCounter, 0 mSDsluCounter, 23588 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35389 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-14 07:04:54,508 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35389 Invalid, 22 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-14 07:04:54,525 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 7856 states.
[2024-10-14 07:04:54,648 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 7856 to 7856.
[2024-10-14 07:04:54,661 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 7856 states, 7855 states have (on average 1.5035009548058562) internal successors, (11810), 7855 states have internal predecessors, (11810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-14 07:04:54,676 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 7856 states to 7856 states and 11810 transitions.
[2024-10-14 07:04:54,676 INFO  L78                 Accepts]: Start accepts. Automaton has 7856 states and 11810 transitions. Word has length 310
[2024-10-14 07:04:54,677 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-14 07:04:54,677 INFO  L471      AbstractCegarLoop]: Abstraction has 7856 states and 11810 transitions.
[2024-10-14 07:04:54,677 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 77.5) internal successors, (310), 4 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-14 07:04:54,678 INFO  L276                IsEmpty]: Start isEmpty. Operand 7856 states and 11810 transitions.
[2024-10-14 07:04:54,682 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 312
[2024-10-14 07:04:54,682 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-14 07:04:54,685 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]
[2024-10-14 07:04:54,685 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-10-14 07:04:54,686 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-14 07:04:54,686 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-14 07:04:54,686 INFO  L85        PathProgramCache]: Analyzing trace with hash 1713507995, now seen corresponding path program 1 times
[2024-10-14 07:04:54,686 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-14 07:04:54,687 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420866830]
[2024-10-14 07:04:54,687 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-14 07:04:54,687 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-14 07:04:54,854 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-14 07:04:55,512 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-14 07:04:55,513 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-14 07:04:55,513 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420866830]
[2024-10-14 07:04:55,514 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420866830] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-14 07:04:55,514 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-14 07:04:55,514 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-14 07:04:55,514 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650134048]
[2024-10-14 07:04:55,514 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-14 07:04:55,515 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-10-14 07:04:55,515 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-14 07:04:55,515 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-10-14 07:04:55,516 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-10-14 07:04:55,516 INFO  L87              Difference]: Start difference. First operand 7856 states and 11810 transitions. Second operand  has 5 states, 5 states have (on average 62.2) internal successors, (311), 4 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-14 07:05:02,352 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-14 07:05:02,353 INFO  L93              Difference]: Finished difference Result 22970 states and 34534 transitions.
[2024-10-14 07:05:02,353 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-10-14 07:05:02,354 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 62.2) internal successors, (311), 4 states have internal predecessors, (311), 0 states have call successors, (0), 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 311
[2024-10-14 07:05:02,356 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-14 07:05:02,418 INFO  L225             Difference]: With dead ends: 22970
[2024-10-14 07:05:02,418 INFO  L226             Difference]: Without dead ends: 15407
[2024-10-14 07:05:02,434 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-10-14 07:05:02,436 INFO  L432           NwaCegarLoop]: 9481 mSDtfsCounter, 11486 mSDsluCounter, 28250 mSDsCounter, 0 mSdLazyCounter, 9046 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11486 SdHoareTripleChecker+Valid, 37731 SdHoareTripleChecker+Invalid, 9046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time
[2024-10-14 07:05:02,437 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [11486 Valid, 37731 Invalid, 9046 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 9046 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time]
[2024-10-14 07:05:02,464 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 15407 states.
[2024-10-14 07:05:02,666 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 15407 to 8163.
[2024-10-14 07:05:02,681 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8163 states, 8162 states have (on average 1.503308012741975) internal successors, (12270), 8162 states have internal predecessors, (12270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-14 07:05:02,698 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8163 states to 8163 states and 12270 transitions.
[2024-10-14 07:05:02,698 INFO  L78                 Accepts]: Start accepts. Automaton has 8163 states and 12270 transitions. Word has length 311
[2024-10-14 07:05:02,699 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-14 07:05:02,699 INFO  L471      AbstractCegarLoop]: Abstraction has 8163 states and 12270 transitions.
[2024-10-14 07:05:02,699 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 62.2) internal successors, (311), 4 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-14 07:05:02,700 INFO  L276                IsEmpty]: Start isEmpty. Operand 8163 states and 12270 transitions.
[2024-10-14 07:05:02,703 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 313
[2024-10-14 07:05:02,703 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-14 07:05:02,704 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]
[2024-10-14 07:05:02,704 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-10-14 07:05:02,705 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-14 07:05:02,705 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-14 07:05:02,706 INFO  L85        PathProgramCache]: Analyzing trace with hash 1898488555, now seen corresponding path program 1 times
[2024-10-14 07:05:02,706 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-14 07:05:02,706 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352987860]
[2024-10-14 07:05:02,706 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-14 07:05:02,706 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-14 07:05:02,867 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-14 07:05:03,762 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-14 07:05:03,762 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-14 07:05:03,763 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352987860]
[2024-10-14 07:05:03,763 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352987860] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-14 07:05:03,763 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-14 07:05:03,763 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2024-10-14 07:05:03,763 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326776746]
[2024-10-14 07:05:03,763 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-14 07:05:03,763 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-10-14 07:05:03,764 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-14 07:05:03,767 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-10-14 07:05:03,767 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2024-10-14 07:05:03,767 INFO  L87              Difference]: Start difference. First operand 8163 states and 12270 transitions. Second operand  has 7 states, 7 states have (on average 44.57142857142857) internal successors, (312), 6 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-14 07:05:04,207 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-14 07:05:04,208 INFO  L93              Difference]: Finished difference Result 21712 states and 32648 transitions.
[2024-10-14 07:05:04,208 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-10-14 07:05:04,208 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 44.57142857142857) internal successors, (312), 6 states have internal predecessors, (312), 0 states have call successors, (0), 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 312
[2024-10-14 07:05:04,209 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-14 07:05:04,242 INFO  L225             Difference]: With dead ends: 21712
[2024-10-14 07:05:04,243 INFO  L226             Difference]: Without dead ends: 14149
[2024-10-14 07:05:04,256 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72
[2024-10-14 07:05:04,258 INFO  L432           NwaCegarLoop]: 11795 mSDtfsCounter, 9607 mSDsluCounter, 46727 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9607 SdHoareTripleChecker+Valid, 58522 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-14 07:05:04,259 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [9607 Valid, 58522 Invalid, 61 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-14 07:05:04,277 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 14149 states.
[2024-10-14 07:05:04,414 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 14149 to 8164.
[2024-10-14 07:05:04,426 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8164 states, 8163 states have (on average 1.503246355506554) internal successors, (12271), 8163 states have internal predecessors, (12271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-14 07:05:04,436 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8164 states to 8164 states and 12271 transitions.
[2024-10-14 07:05:04,437 INFO  L78                 Accepts]: Start accepts. Automaton has 8164 states and 12271 transitions. Word has length 312
[2024-10-14 07:05:04,437 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-14 07:05:04,438 INFO  L471      AbstractCegarLoop]: Abstraction has 8164 states and 12271 transitions.
[2024-10-14 07:05:04,438 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 44.57142857142857) internal successors, (312), 6 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-14 07:05:04,438 INFO  L276                IsEmpty]: Start isEmpty. Operand 8164 states and 12271 transitions.
[2024-10-14 07:05:04,787 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 4019
[2024-10-14 07:05:04,788 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-14 07:05:04,790 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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[2024-10-14 07:05:04,790 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-10-14 07:05:04,791 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-14 07:05:04,791 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-14 07:05:04,793 INFO  L85        PathProgramCache]: Analyzing trace with hash 438888072, now seen corresponding path program 1 times
[2024-10-14 07:05:04,793 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-14 07:05:04,793 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36841417]
[2024-10-14 07:05:04,794 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-14 07:05:04,794 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms