./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c --full-output --architecture 32bit


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


Checking for ERROR reachability
Using default analysis
Version 4a390ef5
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/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7334648c93226b30578843a7fb29bf568bbbf46b83ab126a034690ad505a2960
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-4a390ef-m
[2024-10-24 01:51:50,163 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-10-24 01:51:50,221 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf
[2024-10-24 01:51:50,224 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-10-24 01:51:50,224 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-10-24 01:51:50,238 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-10-24 01:51:50,238 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-10-24 01:51:50,238 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-10-24 01:51:50,239 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-10-24 01:51:50,239 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-10-24 01:51:50,239 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-10-24 01:51:50,239 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-10-24 01:51:50,240 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-10-24 01:51:50,240 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-10-24 01:51:50,240 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-10-24 01:51:50,241 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-10-24 01:51:50,241 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-10-24 01:51:50,241 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-10-24 01:51:50,241 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-10-24 01:51:50,242 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-10-24 01:51:50,242 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-10-24 01:51:50,242 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-10-24 01:51:50,243 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-10-24 01:51:50,243 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-10-24 01:51:50,243 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-10-24 01:51:50,243 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-10-24 01:51:50,244 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-10-24 01:51:50,244 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-10-24 01:51:50,244 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-10-24 01:51:50,244 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-10-24 01:51:50,245 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-10-24 01:51:50,245 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-10-24 01:51:50,245 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-24 01:51:50,245 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-10-24 01:51:50,245 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-10-24 01:51:50,246 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-10-24 01:51:50,246 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-10-24 01:51:50,246 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-10-24 01:51:50,246 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-10-24 01:51:50,246 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-10-24 01:51:50,247 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-10-24 01:51:50,247 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-10-24 01:51:50,247 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 -> 7334648c93226b30578843a7fb29bf568bbbf46b83ab126a034690ad505a2960
[2024-10-24 01:51:50,400 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-10-24 01:51:50,421 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-10-24 01:51:50,423 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-10-24 01:51:50,428 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-10-24 01:51:50,431 INFO  L274        PluginConnector]: CDTParser initialized
[2024-10-24 01:51:50,432 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c
[2024-10-24 01:51:51,755 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-10-24 01:51:52,071 INFO  L384              CDTParser]: Found 1 translation units.
[2024-10-24 01:51:52,072 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c
[2024-10-24 01:51:52,090 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73b86ea2c/f0c5a6487ca2467f98b6d11041a2e20d/FLAGe7f4f2fd8
[2024-10-24 01:51:52,123 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73b86ea2c/f0c5a6487ca2467f98b6d11041a2e20d
[2024-10-24 01:51:52,125 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-10-24 01:51:52,126 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-10-24 01:51:52,133 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-10-24 01:51:52,133 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-10-24 01:51:52,138 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-10-24 01:51:52,143 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:51:52" (1/1) ...
[2024-10-24 01:51:52,143 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68fbd4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:51:52, skipping insertion in model container
[2024-10-24 01:51:52,143 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 01:51:52" (1/1) ...
[2024-10-24 01:51:52,222 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-10-24 01:51:52,630 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/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[6730,6743]
[2024-10-24 01:51:52,666 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-24 01:51:52,693 INFO  L200         MainTranslator]: Completed pre-run
[2024-10-24 01:51:52,756 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/seq-mthreaded-reduced/pals_lcr.6.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c[6730,6743]
[2024-10-24 01:51:52,781 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-24 01:51:52,811 INFO  L204         MainTranslator]: Completed translation
[2024-10-24 01:51:52,812 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:51:52 WrapperNode
[2024-10-24 01:51:52,812 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-10-24 01:51:52,813 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-10-24 01:51:52,813 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-10-24 01:51:52,813 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-10-24 01:51:52,819 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:51:52" (1/1) ...
[2024-10-24 01:51:52,826 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:51:52" (1/1) ...
[2024-10-24 01:51:52,858 INFO  L138                Inliner]: procedures = 26, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 536
[2024-10-24 01:51:52,859 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-10-24 01:51:52,862 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-10-24 01:51:52,863 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-10-24 01:51:52,863 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-10-24 01:51:52,882 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:51:52" (1/1) ...
[2024-10-24 01:51:52,882 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:51:52" (1/1) ...
[2024-10-24 01:51:52,893 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:51:52" (1/1) ...
[2024-10-24 01:51:52,907 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].
[2024-10-24 01:51:52,908 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:51:52" (1/1) ...
[2024-10-24 01:51:52,908 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:51:52" (1/1) ...
[2024-10-24 01:51:52,919 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:51:52" (1/1) ...
[2024-10-24 01:51:52,929 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:51:52" (1/1) ...
[2024-10-24 01:51:52,932 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:51:52" (1/1) ...
[2024-10-24 01:51:52,938 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:51:52" (1/1) ...
[2024-10-24 01:51:52,944 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-10-24 01:51:52,949 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-10-24 01:51:52,949 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-10-24 01:51:52,949 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-10-24 01:51:52,950 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:51:52" (1/1) ...
[2024-10-24 01:51:52,960 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-24 01:51:52,976 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-10-24 01:51:52,999 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)
[2024-10-24 01:51:53,009 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
[2024-10-24 01:51:53,046 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-10-24 01:51:53,047 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-10-24 01:51:53,047 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-10-24 01:51:53,048 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-10-24 01:51:53,175 INFO  L238             CfgBuilder]: Building ICFG
[2024-10-24 01:51:53,177 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-10-24 01:51:53,558 INFO  L?                        ?]: Removed 47 outVars from TransFormulas that were not future-live.
[2024-10-24 01:51:53,559 INFO  L287             CfgBuilder]: Performing block encoding
[2024-10-24 01:51:53,592 INFO  L309             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-10-24 01:51:53,592 INFO  L314             CfgBuilder]: Removed 0 assume(true) statements.
[2024-10-24 01:51:53,593 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:51:53 BoogieIcfgContainer
[2024-10-24 01:51:53,593 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-10-24 01:51:53,594 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-10-24 01:51:53,595 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-10-24 01:51:53,597 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-10-24 01:51:53,597 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 01:51:52" (1/3) ...
[2024-10-24 01:51:53,597 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57eb91b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:51:53, skipping insertion in model container
[2024-10-24 01:51:53,598 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 01:51:52" (2/3) ...
[2024-10-24 01:51:53,598 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57eb91b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 01:51:53, skipping insertion in model container
[2024-10-24 01:51:53,598 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 01:51:53" (3/3) ...
[2024-10-24 01:51:53,599 INFO  L112   eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c
[2024-10-24 01:51:53,610 INFO  L209   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-10-24 01:51:53,610 INFO  L149   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-10-24 01:51:53,677 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-10-24 01:51:53,683 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;@5ca892e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-24 01:51:53,684 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-24 01:51:53,691 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 116 states, 114 states have (on average 1.7456140350877194) internal successors, (199), 115 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:53,699 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 73
[2024-10-24 01:51:53,699 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 01:51:53,700 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]
[2024-10-24 01:51:53,701 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 01:51:53,705 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 01:51:53,706 INFO  L85        PathProgramCache]: Analyzing trace with hash -1168522135, now seen corresponding path program 1 times
[2024-10-24 01:51:53,714 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 01:51:53,714 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343348055]
[2024-10-24 01:51:53,714 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 01:51:53,715 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 01:51:53,958 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 01:51:54,225 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-24 01:51:54,226 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 01:51:54,226 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343348055]
[2024-10-24 01:51:54,226 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343348055] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-24 01:51:54,226 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-24 01:51:54,227 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-24 01:51:54,230 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283362428]
[2024-10-24 01:51:54,231 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-24 01:51:54,235 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-24 01:51:54,235 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 01:51:54,253 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-24 01:51:54,253 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-24 01:51:54,255 INFO  L87              Difference]: Start difference. First operand  has 116 states, 114 states have (on average 1.7456140350877194) internal successors, (199), 115 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:54,303 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 01:51:54,304 INFO  L93              Difference]: Finished difference Result 256 states and 418 transitions.
[2024-10-24 01:51:54,306 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-24 01:51:54,307 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 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 72
[2024-10-24 01:51:54,307 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 01:51:54,316 INFO  L225             Difference]: With dead ends: 256
[2024-10-24 01:51:54,316 INFO  L226             Difference]: Without dead ends: 178
[2024-10-24 01:51:54,320 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
[2024-10-24 01:51:54,323 INFO  L432           NwaCegarLoop]: 274 mSDtfsCounter, 132 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-24 01:51:54,325 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 395 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-24 01:51:54,341 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 178 states.
[2024-10-24 01:51:54,358 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 176.
[2024-10-24 01:51:54,359 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 176 states, 175 states have (on average 1.457142857142857) internal successors, (255), 175 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:54,361 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 255 transitions.
[2024-10-24 01:51:54,362 INFO  L78                 Accepts]: Start accepts. Automaton has 176 states and 255 transitions. Word has length 72
[2024-10-24 01:51:54,362 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 01:51:54,363 INFO  L471      AbstractCegarLoop]: Abstraction has 176 states and 255 transitions.
[2024-10-24 01:51:54,363 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:54,363 INFO  L276                IsEmpty]: Start isEmpty. Operand 176 states and 255 transitions.
[2024-10-24 01:51:54,365 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 74
[2024-10-24 01:51:54,365 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 01:51:54,365 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]
[2024-10-24 01:51:54,365 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-10-24 01:51:54,365 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 01:51:54,366 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 01:51:54,366 INFO  L85        PathProgramCache]: Analyzing trace with hash 199267447, now seen corresponding path program 1 times
[2024-10-24 01:51:54,366 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 01:51:54,366 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781059893]
[2024-10-24 01:51:54,367 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 01:51:54,367 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 01:51:54,392 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 01:51:54,460 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-24 01:51:54,460 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 01:51:54,460 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781059893]
[2024-10-24 01:51:54,460 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781059893] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-24 01:51:54,461 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-24 01:51:54,461 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-24 01:51:54,461 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321871720]
[2024-10-24 01:51:54,461 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-24 01:51:54,462 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-24 01:51:54,462 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 01:51:54,463 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-24 01:51:54,463 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-24 01:51:54,463 INFO  L87              Difference]: Start difference. First operand 176 states and 255 transitions. Second operand  has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:54,504 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 01:51:54,506 INFO  L93              Difference]: Finished difference Result 428 states and 655 transitions.
[2024-10-24 01:51:54,506 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-24 01:51:54,507 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 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 73
[2024-10-24 01:51:54,507 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 01:51:54,509 INFO  L225             Difference]: With dead ends: 428
[2024-10-24 01:51:54,509 INFO  L226             Difference]: Without dead ends: 294
[2024-10-24 01:51:54,509 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
[2024-10-24 01:51:54,513 INFO  L432           NwaCegarLoop]: 225 mSDtfsCounter, 94 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-24 01:51:54,514 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 342 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-24 01:51:54,515 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 294 states.
[2024-10-24 01:51:54,528 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 292.
[2024-10-24 01:51:54,528 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 292 states, 291 states have (on average 1.5085910652920962) internal successors, (439), 291 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:54,530 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 439 transitions.
[2024-10-24 01:51:54,530 INFO  L78                 Accepts]: Start accepts. Automaton has 292 states and 439 transitions. Word has length 73
[2024-10-24 01:51:54,530 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 01:51:54,530 INFO  L471      AbstractCegarLoop]: Abstraction has 292 states and 439 transitions.
[2024-10-24 01:51:54,530 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:54,531 INFO  L276                IsEmpty]: Start isEmpty. Operand 292 states and 439 transitions.
[2024-10-24 01:51:54,532 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 75
[2024-10-24 01:51:54,532 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 01:51:54,532 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]
[2024-10-24 01:51:54,532 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-10-24 01:51:54,532 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 01:51:54,533 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 01:51:54,533 INFO  L85        PathProgramCache]: Analyzing trace with hash -619794628, now seen corresponding path program 1 times
[2024-10-24 01:51:54,533 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 01:51:54,533 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085322317]
[2024-10-24 01:51:54,533 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 01:51:54,534 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 01:51:54,556 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 01:51:54,638 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-24 01:51:54,638 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 01:51:54,638 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085322317]
[2024-10-24 01:51:54,639 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085322317] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-24 01:51:54,639 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-24 01:51:54,639 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-24 01:51:54,639 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571635457]
[2024-10-24 01:51:54,639 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-24 01:51:54,640 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-24 01:51:54,640 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 01:51:54,641 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-24 01:51:54,641 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-24 01:51:54,641 INFO  L87              Difference]: Start difference. First operand 292 states and 439 transitions. Second operand  has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:54,661 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 01:51:54,662 INFO  L93              Difference]: Finished difference Result 760 states and 1181 transitions.
[2024-10-24 01:51:54,662 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-24 01:51:54,662 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74
[2024-10-24 01:51:54,663 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 01:51:54,665 INFO  L225             Difference]: With dead ends: 760
[2024-10-24 01:51:54,666 INFO  L226             Difference]: Without dead ends: 510
[2024-10-24 01:51:54,667 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
[2024-10-24 01:51:54,668 INFO  L432           NwaCegarLoop]: 217 mSDtfsCounter, 89 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-24 01:51:54,668 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 338 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-24 01:51:54,669 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 510 states.
[2024-10-24 01:51:54,686 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 508.
[2024-10-24 01:51:54,687 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 508 states, 507 states have (on average 1.5364891518737673) internal successors, (779), 507 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:54,689 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 779 transitions.
[2024-10-24 01:51:54,689 INFO  L78                 Accepts]: Start accepts. Automaton has 508 states and 779 transitions. Word has length 74
[2024-10-24 01:51:54,689 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 01:51:54,690 INFO  L471      AbstractCegarLoop]: Abstraction has 508 states and 779 transitions.
[2024-10-24 01:51:54,690 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:54,690 INFO  L276                IsEmpty]: Start isEmpty. Operand 508 states and 779 transitions.
[2024-10-24 01:51:54,691 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 76
[2024-10-24 01:51:54,692 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 01:51:54,692 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]
[2024-10-24 01:51:54,692 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-10-24 01:51:54,692 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 01:51:54,693 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 01:51:54,693 INFO  L85        PathProgramCache]: Analyzing trace with hash -544666826, now seen corresponding path program 1 times
[2024-10-24 01:51:54,693 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 01:51:54,693 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864626264]
[2024-10-24 01:51:54,693 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 01:51:54,693 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 01:51:54,737 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 01:51:54,832 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-24 01:51:54,832 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 01:51:54,832 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864626264]
[2024-10-24 01:51:54,833 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864626264] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-24 01:51:54,833 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-24 01:51:54,833 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-24 01:51:54,833 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587007634]
[2024-10-24 01:51:54,833 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-24 01:51:54,833 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-24 01:51:54,834 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 01:51:54,834 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-24 01:51:54,834 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-24 01:51:54,834 INFO  L87              Difference]: Start difference. First operand 508 states and 779 transitions. Second operand  has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:54,857 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 01:51:54,858 INFO  L93              Difference]: Finished difference Result 1376 states and 2149 transitions.
[2024-10-24 01:51:54,859 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-24 01:51:54,859 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 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 75
[2024-10-24 01:51:54,860 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 01:51:54,864 INFO  L225             Difference]: With dead ends: 1376
[2024-10-24 01:51:54,864 INFO  L226             Difference]: Without dead ends: 910
[2024-10-24 01:51:54,866 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
[2024-10-24 01:51:54,868 INFO  L432           NwaCegarLoop]: 209 mSDtfsCounter, 84 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 334 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-24 01:51:54,869 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 334 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-24 01:51:54,872 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 910 states.
[2024-10-24 01:51:54,901 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 910 to 908.
[2024-10-24 01:51:54,907 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 908 states, 907 states have (on average 1.5468577728776185) internal successors, (1403), 907 states have internal predecessors, (1403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:54,909 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 908 states to 908 states and 1403 transitions.
[2024-10-24 01:51:54,910 INFO  L78                 Accepts]: Start accepts. Automaton has 908 states and 1403 transitions. Word has length 75
[2024-10-24 01:51:54,910 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 01:51:54,910 INFO  L471      AbstractCegarLoop]: Abstraction has 908 states and 1403 transitions.
[2024-10-24 01:51:54,910 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:54,910 INFO  L276                IsEmpty]: Start isEmpty. Operand 908 states and 1403 transitions.
[2024-10-24 01:51:54,915 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 77
[2024-10-24 01:51:54,917 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 01:51:54,917 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]
[2024-10-24 01:51:54,918 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-10-24 01:51:54,918 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 01:51:54,919 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 01:51:54,919 INFO  L85        PathProgramCache]: Analyzing trace with hash -1064989273, now seen corresponding path program 1 times
[2024-10-24 01:51:54,919 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 01:51:54,919 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606893779]
[2024-10-24 01:51:54,919 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 01:51:54,920 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 01:51:54,953 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 01:51:55,025 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-24 01:51:55,026 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 01:51:55,026 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606893779]
[2024-10-24 01:51:55,027 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606893779] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-24 01:51:55,027 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-24 01:51:55,028 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-24 01:51:55,028 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611792038]
[2024-10-24 01:51:55,029 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-24 01:51:55,029 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-24 01:51:55,029 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 01:51:55,030 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-24 01:51:55,030 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-24 01:51:55,030 INFO  L87              Difference]: Start difference. First operand 908 states and 1403 transitions. Second operand  has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:55,054 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 01:51:55,055 INFO  L93              Difference]: Finished difference Result 2512 states and 3917 transitions.
[2024-10-24 01:51:55,055 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-24 01:51:55,055 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 76
[2024-10-24 01:51:55,056 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 01:51:55,063 INFO  L225             Difference]: With dead ends: 2512
[2024-10-24 01:51:55,063 INFO  L226             Difference]: Without dead ends: 1646
[2024-10-24 01:51:55,064 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
[2024-10-24 01:51:55,066 INFO  L432           NwaCegarLoop]: 201 mSDtfsCounter, 79 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-24 01:51:55,069 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 330 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-24 01:51:55,071 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 1646 states.
[2024-10-24 01:51:55,086 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 1646 to 1644.
[2024-10-24 01:51:55,088 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 1644 states, 1643 states have (on average 1.5453438831405966) internal successors, (2539), 1643 states have internal predecessors, (2539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:55,109 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 1644 states to 1644 states and 2539 transitions.
[2024-10-24 01:51:55,110 INFO  L78                 Accepts]: Start accepts. Automaton has 1644 states and 2539 transitions. Word has length 76
[2024-10-24 01:51:55,111 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 01:51:55,111 INFO  L471      AbstractCegarLoop]: Abstraction has 1644 states and 2539 transitions.
[2024-10-24 01:51:55,111 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:55,112 INFO  L276                IsEmpty]: Start isEmpty. Operand 1644 states and 2539 transitions.
[2024-10-24 01:51:55,113 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 78
[2024-10-24 01:51:55,114 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 01:51:55,115 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]
[2024-10-24 01:51:55,115 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-10-24 01:51:55,115 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 01:51:55,115 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 01:51:55,115 INFO  L85        PathProgramCache]: Analyzing trace with hash 1230877810, now seen corresponding path program 1 times
[2024-10-24 01:51:55,116 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 01:51:55,116 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610596880]
[2024-10-24 01:51:55,116 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 01:51:55,116 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 01:51:55,144 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 01:51:55,373 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-24 01:51:55,375 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 01:51:55,375 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610596880]
[2024-10-24 01:51:55,375 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610596880] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-24 01:51:55,375 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-24 01:51:55,376 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-10-24 01:51:55,376 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50627888]
[2024-10-24 01:51:55,376 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-24 01:51:55,376 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-10-24 01:51:55,377 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 01:51:55,377 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-10-24 01:51:55,378 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56
[2024-10-24 01:51:55,378 INFO  L87              Difference]: Start difference. First operand 1644 states and 2539 transitions. Second operand  has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:55,731 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 01:51:55,731 INFO  L93              Difference]: Finished difference Result 20868 states and 32503 transitions.
[2024-10-24 01:51:55,732 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. 
[2024-10-24 01:51:55,732 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 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 77
[2024-10-24 01:51:55,732 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 01:51:55,773 INFO  L225             Difference]: With dead ends: 20868
[2024-10-24 01:51:55,773 INFO  L226             Difference]: Without dead ends: 19266
[2024-10-24 01:51:55,778 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272
[2024-10-24 01:51:55,779 INFO  L432           NwaCegarLoop]: 151 mSDtfsCounter, 1770 mSDsluCounter, 2750 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1770 SdHoareTripleChecker+Valid, 2901 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-24 01:51:55,779 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1770 Valid, 2901 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-24 01:51:55,791 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 19266 states.
[2024-10-24 01:51:55,902 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 19266 to 3244.
[2024-10-24 01:51:55,906 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 3244 states, 3243 states have (on average 1.5328399629972247) internal successors, (4971), 3243 states have internal predecessors, (4971), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:55,911 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 3244 states to 3244 states and 4971 transitions.
[2024-10-24 01:51:55,912 INFO  L78                 Accepts]: Start accepts. Automaton has 3244 states and 4971 transitions. Word has length 77
[2024-10-24 01:51:55,912 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 01:51:55,912 INFO  L471      AbstractCegarLoop]: Abstraction has 3244 states and 4971 transitions.
[2024-10-24 01:51:55,912 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 9.625) internal successors, (77), 8 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:55,912 INFO  L276                IsEmpty]: Start isEmpty. Operand 3244 states and 4971 transitions.
[2024-10-24 01:51:55,913 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2024-10-24 01:51:55,913 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 01:51:55,913 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]
[2024-10-24 01:51:55,917 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-10-24 01:51:55,917 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 01:51:55,918 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 01:51:55,918 INFO  L85        PathProgramCache]: Analyzing trace with hash 835749454, now seen corresponding path program 1 times
[2024-10-24 01:51:55,918 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 01:51:55,918 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536179089]
[2024-10-24 01:51:55,918 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 01:51:55,918 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 01:51:55,950 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 01:51:56,046 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-24 01:51:56,047 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 01:51:56,047 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536179089]
[2024-10-24 01:51:56,047 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536179089] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-24 01:51:56,047 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-24 01:51:56,047 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-24 01:51:56,048 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723463643]
[2024-10-24 01:51:56,048 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-24 01:51:56,048 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-24 01:51:56,048 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 01:51:56,049 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-24 01:51:56,049 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-24 01:51:56,049 INFO  L87              Difference]: Start difference. First operand 3244 states and 4971 transitions. Second operand  has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:56,097 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 01:51:56,097 INFO  L93              Difference]: Finished difference Result 9296 states and 14221 transitions.
[2024-10-24 01:51:56,097 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-24 01:51:56,098 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 79
[2024-10-24 01:51:56,098 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 01:51:56,124 INFO  L225             Difference]: With dead ends: 9296
[2024-10-24 01:51:56,127 INFO  L226             Difference]: Without dead ends: 6094
[2024-10-24 01:51:56,132 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
[2024-10-24 01:51:56,135 INFO  L432           NwaCegarLoop]: 153 mSDtfsCounter, 69 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-24 01:51:56,135 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 260 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-24 01:51:56,140 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6094 states.
[2024-10-24 01:51:56,217 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6094 to 6028.
[2024-10-24 01:51:56,224 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6028 states, 6027 states have (on average 1.5043968807035009) internal successors, (9067), 6027 states have internal predecessors, (9067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:56,234 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6028 states to 6028 states and 9067 transitions.
[2024-10-24 01:51:56,234 INFO  L78                 Accepts]: Start accepts. Automaton has 6028 states and 9067 transitions. Word has length 79
[2024-10-24 01:51:56,235 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 01:51:56,235 INFO  L471      AbstractCegarLoop]: Abstraction has 6028 states and 9067 transitions.
[2024-10-24 01:51:56,235 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:56,235 INFO  L276                IsEmpty]: Start isEmpty. Operand 6028 states and 9067 transitions.
[2024-10-24 01:51:56,235 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 80
[2024-10-24 01:51:56,236 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 01:51:56,236 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]
[2024-10-24 01:51:56,236 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-10-24 01:51:56,236 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 01:51:56,236 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 01:51:56,236 INFO  L85        PathProgramCache]: Analyzing trace with hash 856752109, now seen corresponding path program 1 times
[2024-10-24 01:51:56,237 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 01:51:56,237 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396189574]
[2024-10-24 01:51:56,237 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 01:51:56,237 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 01:51:56,256 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 01:51:56,498 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-24 01:51:56,498 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 01:51:56,498 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396189574]
[2024-10-24 01:51:56,498 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396189574] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-24 01:51:56,498 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-24 01:51:56,498 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-10-24 01:51:56,499 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954477869]
[2024-10-24 01:51:56,499 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-24 01:51:56,499 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-10-24 01:51:56,499 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 01:51:56,499 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-10-24 01:51:56,500 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2024-10-24 01:51:56,500 INFO  L87              Difference]: Start difference. First operand 6028 states and 9067 transitions. Second operand  has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:56,736 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 01:51:56,736 INFO  L93              Difference]: Finished difference Result 12016 states and 18093 transitions.
[2024-10-24 01:51:56,736 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-10-24 01:51:56,737 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 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 79
[2024-10-24 01:51:56,737 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 01:51:56,745 INFO  L225             Difference]: With dead ends: 12016
[2024-10-24 01:51:56,745 INFO  L226             Difference]: Without dead ends: 6030
[2024-10-24 01:51:56,752 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132
[2024-10-24 01:51:56,752 INFO  L432           NwaCegarLoop]: 192 mSDtfsCounter, 472 mSDsluCounter, 553 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 745 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-24 01:51:56,753 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 745 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-24 01:51:56,757 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 6030 states.
[2024-10-24 01:51:56,809 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 6030 to 6028.
[2024-10-24 01:51:56,816 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 6028 states, 6027 states have (on average 1.49377799900448) internal successors, (9003), 6027 states have internal predecessors, (9003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:56,826 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 6028 states to 6028 states and 9003 transitions.
[2024-10-24 01:51:56,826 INFO  L78                 Accepts]: Start accepts. Automaton has 6028 states and 9003 transitions. Word has length 79
[2024-10-24 01:51:56,826 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 01:51:56,827 INFO  L471      AbstractCegarLoop]: Abstraction has 6028 states and 9003 transitions.
[2024-10-24 01:51:56,827 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:56,827 INFO  L276                IsEmpty]: Start isEmpty. Operand 6028 states and 9003 transitions.
[2024-10-24 01:51:56,827 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 81
[2024-10-24 01:51:56,827 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 01:51:56,827 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]
[2024-10-24 01:51:56,827 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2024-10-24 01:51:56,827 INFO  L396      AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 01:51:56,828 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 01:51:56,828 INFO  L85        PathProgramCache]: Analyzing trace with hash 89483993, now seen corresponding path program 1 times
[2024-10-24 01:51:56,828 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 01:51:56,828 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344644592]
[2024-10-24 01:51:56,828 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 01:51:56,828 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 01:51:56,843 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 01:51:56,872 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-24 01:51:56,873 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 01:51:56,873 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344644592]
[2024-10-24 01:51:56,873 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344644592] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-24 01:51:56,873 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-24 01:51:56,873 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-24 01:51:56,873 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831590231]
[2024-10-24 01:51:56,873 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-24 01:51:56,874 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-24 01:51:56,874 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 01:51:56,874 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-24 01:51:56,874 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-24 01:51:56,874 INFO  L87              Difference]: Start difference. First operand 6028 states and 9003 transitions. Second operand  has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:56,906 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 01:51:56,907 INFO  L93              Difference]: Finished difference Result 11795 states and 17777 transitions.
[2024-10-24 01:51:56,907 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-24 01:51:56,907 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 80
[2024-10-24 01:51:56,908 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 01:51:56,919 INFO  L225             Difference]: With dead ends: 11795
[2024-10-24 01:51:56,919 INFO  L226             Difference]: Without dead ends: 8592
[2024-10-24 01:51:56,924 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
[2024-10-24 01:51:56,924 INFO  L432           NwaCegarLoop]: 245 mSDtfsCounter, 101 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-24 01:51:56,925 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 354 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-24 01:51:56,930 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8592 states.
[2024-10-24 01:51:57,043 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8592 to 8590.
[2024-10-24 01:51:57,055 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8590 states, 8589 states have (on average 1.491791826755152) internal successors, (12813), 8589 states have internal predecessors, (12813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:57,070 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8590 states to 8590 states and 12813 transitions.
[2024-10-24 01:51:57,071 INFO  L78                 Accepts]: Start accepts. Automaton has 8590 states and 12813 transitions. Word has length 80
[2024-10-24 01:51:57,071 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 01:51:57,071 INFO  L471      AbstractCegarLoop]: Abstraction has 8590 states and 12813 transitions.
[2024-10-24 01:51:57,071 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:57,072 INFO  L276                IsEmpty]: Start isEmpty. Operand 8590 states and 12813 transitions.
[2024-10-24 01:51:57,072 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 81
[2024-10-24 01:51:57,072 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 01:51:57,072 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]
[2024-10-24 01:51:57,072 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2024-10-24 01:51:57,073 INFO  L396      AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 01:51:57,073 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 01:51:57,073 INFO  L85        PathProgramCache]: Analyzing trace with hash 787602291, now seen corresponding path program 1 times
[2024-10-24 01:51:57,073 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 01:51:57,073 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038449137]
[2024-10-24 01:51:57,074 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 01:51:57,074 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 01:51:57,101 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 01:51:57,163 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-24 01:51:57,163 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 01:51:57,163 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038449137]
[2024-10-24 01:51:57,164 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038449137] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-24 01:51:57,164 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-24 01:51:57,164 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-24 01:51:57,164 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435296902]
[2024-10-24 01:51:57,164 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-24 01:51:57,164 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-10-24 01:51:57,164 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 01:51:57,165 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-10-24 01:51:57,165 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-10-24 01:51:57,165 INFO  L87              Difference]: Start difference. First operand 8590 states and 12813 transitions. Second operand  has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:57,263 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 01:51:57,263 INFO  L93              Difference]: Finished difference Result 17136 states and 25582 transitions.
[2024-10-24 01:51:57,264 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-10-24 01:51:57,264 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 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 80
[2024-10-24 01:51:57,265 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 01:51:57,276 INFO  L225             Difference]: With dead ends: 17136
[2024-10-24 01:51:57,276 INFO  L226             Difference]: Without dead ends: 8590
[2024-10-24 01:51:57,284 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-10-24 01:51:57,286 INFO  L432           NwaCegarLoop]: 95 mSDtfsCounter, 388 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-24 01:51:57,286 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 115 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-24 01:51:57,293 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8590 states.
[2024-10-24 01:51:57,354 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8590 to 8590.
[2024-10-24 01:51:57,363 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8590 states, 8589 states have (on average 1.480614739783444) internal successors, (12717), 8589 states have internal predecessors, (12717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:57,373 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8590 states to 8590 states and 12717 transitions.
[2024-10-24 01:51:57,374 INFO  L78                 Accepts]: Start accepts. Automaton has 8590 states and 12717 transitions. Word has length 80
[2024-10-24 01:51:57,374 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 01:51:57,374 INFO  L471      AbstractCegarLoop]: Abstraction has 8590 states and 12717 transitions.
[2024-10-24 01:51:57,374 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:57,374 INFO  L276                IsEmpty]: Start isEmpty. Operand 8590 states and 12717 transitions.
[2024-10-24 01:51:57,406 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 81
[2024-10-24 01:51:57,406 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 01:51:57,406 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]
[2024-10-24 01:51:57,406 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2024-10-24 01:51:57,407 INFO  L396      AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 01:51:57,407 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 01:51:57,407 INFO  L85        PathProgramCache]: Analyzing trace with hash 24738584, now seen corresponding path program 1 times
[2024-10-24 01:51:57,407 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 01:51:57,407 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449581174]
[2024-10-24 01:51:57,407 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 01:51:57,407 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 01:51:57,427 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 01:51:57,482 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-24 01:51:57,482 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 01:51:57,482 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449581174]
[2024-10-24 01:51:57,482 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449581174] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-24 01:51:57,482 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-24 01:51:57,483 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-24 01:51:57,483 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65537962]
[2024-10-24 01:51:57,483 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-24 01:51:57,483 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-10-24 01:51:57,483 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 01:51:57,483 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-10-24 01:51:57,484 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-10-24 01:51:57,484 INFO  L87              Difference]: Start difference. First operand 8590 states and 12717 transitions. Second operand  has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:57,573 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 01:51:57,574 INFO  L93              Difference]: Finished difference Result 17136 states and 25390 transitions.
[2024-10-24 01:51:57,574 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-10-24 01:51:57,574 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 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 80
[2024-10-24 01:51:57,574 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 01:51:57,583 INFO  L225             Difference]: With dead ends: 17136
[2024-10-24 01:51:57,584 INFO  L226             Difference]: Without dead ends: 8590
[2024-10-24 01:51:57,590 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-10-24 01:51:57,591 INFO  L432           NwaCegarLoop]: 95 mSDtfsCounter, 359 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-24 01:51:57,591 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 131 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-24 01:51:57,595 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8590 states.
[2024-10-24 01:51:57,650 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8590 to 8590.
[2024-10-24 01:51:57,657 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8590 states, 8589 states have (on average 1.4694376528117359) internal successors, (12621), 8589 states have internal predecessors, (12621), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:57,668 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8590 states to 8590 states and 12621 transitions.
[2024-10-24 01:51:57,669 INFO  L78                 Accepts]: Start accepts. Automaton has 8590 states and 12621 transitions. Word has length 80
[2024-10-24 01:51:57,669 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 01:51:57,669 INFO  L471      AbstractCegarLoop]: Abstraction has 8590 states and 12621 transitions.
[2024-10-24 01:51:57,669 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:57,669 INFO  L276                IsEmpty]: Start isEmpty. Operand 8590 states and 12621 transitions.
[2024-10-24 01:51:57,669 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 81
[2024-10-24 01:51:57,670 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 01:51:57,670 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]
[2024-10-24 01:51:57,670 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2024-10-24 01:51:57,670 INFO  L396      AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 01:51:57,670 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 01:51:57,670 INFO  L85        PathProgramCache]: Analyzing trace with hash 890270973, now seen corresponding path program 1 times
[2024-10-24 01:51:57,670 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 01:51:57,671 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986809840]
[2024-10-24 01:51:57,671 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 01:51:57,671 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 01:51:57,688 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 01:51:57,740 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-24 01:51:57,741 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 01:51:57,741 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986809840]
[2024-10-24 01:51:57,741 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986809840] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-24 01:51:57,741 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-24 01:51:57,741 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-24 01:51:57,741 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078466448]
[2024-10-24 01:51:57,741 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-24 01:51:57,742 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-10-24 01:51:57,742 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 01:51:57,742 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-10-24 01:51:57,742 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-10-24 01:51:57,742 INFO  L87              Difference]: Start difference. First operand 8590 states and 12621 transitions. Second operand  has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:57,858 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 01:51:57,858 INFO  L93              Difference]: Finished difference Result 17136 states and 25198 transitions.
[2024-10-24 01:51:57,859 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-10-24 01:51:57,859 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 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 80
[2024-10-24 01:51:57,859 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 01:51:57,869 INFO  L225             Difference]: With dead ends: 17136
[2024-10-24 01:51:57,869 INFO  L226             Difference]: Without dead ends: 8590
[2024-10-24 01:51:57,876 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-10-24 01:51:57,876 INFO  L432           NwaCegarLoop]: 95 mSDtfsCounter, 369 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-24 01:51:57,877 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 123 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-24 01:51:57,880 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8590 states.
[2024-10-24 01:51:57,940 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8590 to 8590.
[2024-10-24 01:51:57,949 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8590 states, 8589 states have (on average 1.4582605658400278) internal successors, (12525), 8589 states have internal predecessors, (12525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:57,961 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8590 states to 8590 states and 12525 transitions.
[2024-10-24 01:51:57,961 INFO  L78                 Accepts]: Start accepts. Automaton has 8590 states and 12525 transitions. Word has length 80
[2024-10-24 01:51:57,961 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 01:51:57,961 INFO  L471      AbstractCegarLoop]: Abstraction has 8590 states and 12525 transitions.
[2024-10-24 01:51:57,961 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:57,962 INFO  L276                IsEmpty]: Start isEmpty. Operand 8590 states and 12525 transitions.
[2024-10-24 01:51:57,962 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 81
[2024-10-24 01:51:57,962 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 01:51:57,962 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]
[2024-10-24 01:51:57,962 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2024-10-24 01:51:57,962 INFO  L396      AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 01:51:57,962 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 01:51:57,963 INFO  L85        PathProgramCache]: Analyzing trace with hash 1018356280, now seen corresponding path program 1 times
[2024-10-24 01:51:57,963 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 01:51:57,963 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982405169]
[2024-10-24 01:51:57,963 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 01:51:57,963 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 01:51:57,979 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 01:51:58,030 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-24 01:51:58,030 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 01:51:58,030 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982405169]
[2024-10-24 01:51:58,030 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982405169] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-24 01:51:58,030 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-24 01:51:58,030 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-24 01:51:58,030 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976542578]
[2024-10-24 01:51:58,031 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-24 01:51:58,031 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-10-24 01:51:58,031 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 01:51:58,031 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-10-24 01:51:58,031 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-10-24 01:51:58,031 INFO  L87              Difference]: Start difference. First operand 8590 states and 12525 transitions. Second operand  has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:58,122 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 01:51:58,123 INFO  L93              Difference]: Finished difference Result 17136 states and 25006 transitions.
[2024-10-24 01:51:58,123 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-10-24 01:51:58,123 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 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 80
[2024-10-24 01:51:58,124 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 01:51:58,134 INFO  L225             Difference]: With dead ends: 17136
[2024-10-24 01:51:58,134 INFO  L226             Difference]: Without dead ends: 8590
[2024-10-24 01:51:58,142 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2024-10-24 01:51:58,143 INFO  L432           NwaCegarLoop]: 95 mSDtfsCounter, 392 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-24 01:51:58,143 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 107 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-24 01:51:58,146 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8590 states.
[2024-10-24 01:51:58,245 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8590 to 8590.
[2024-10-24 01:51:58,252 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8590 states, 8589 states have (on average 1.44708347886832) internal successors, (12429), 8589 states have internal predecessors, (12429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:58,263 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8590 states to 8590 states and 12429 transitions.
[2024-10-24 01:51:58,263 INFO  L78                 Accepts]: Start accepts. Automaton has 8590 states and 12429 transitions. Word has length 80
[2024-10-24 01:51:58,263 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 01:51:58,263 INFO  L471      AbstractCegarLoop]: Abstraction has 8590 states and 12429 transitions.
[2024-10-24 01:51:58,263 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:58,264 INFO  L276                IsEmpty]: Start isEmpty. Operand 8590 states and 12429 transitions.
[2024-10-24 01:51:58,264 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 81
[2024-10-24 01:51:58,264 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 01:51:58,264 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]
[2024-10-24 01:51:58,264 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2024-10-24 01:51:58,264 INFO  L396      AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 01:51:58,265 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 01:51:58,265 INFO  L85        PathProgramCache]: Analyzing trace with hash 1386627507, now seen corresponding path program 1 times
[2024-10-24 01:51:58,265 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 01:51:58,265 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205638901]
[2024-10-24 01:51:58,265 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 01:51:58,265 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 01:51:58,284 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 01:51:58,431 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-24 01:51:58,431 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 01:51:58,431 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205638901]
[2024-10-24 01:51:58,431 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205638901] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-24 01:51:58,431 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-24 01:51:58,431 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-10-24 01:51:58,431 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674517825]
[2024-10-24 01:51:58,432 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-24 01:51:58,432 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-10-24 01:51:58,432 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 01:51:58,432 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-10-24 01:51:58,432 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-10-24 01:51:58,432 INFO  L87              Difference]: Start difference. First operand 8590 states and 12429 transitions. Second operand  has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:58,468 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 01:51:58,469 INFO  L93              Difference]: Finished difference Result 8848 states and 12814 transitions.
[2024-10-24 01:51:58,469 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-10-24 01:51:58,469 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 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 80
[2024-10-24 01:51:58,469 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 01:51:58,480 INFO  L225             Difference]: With dead ends: 8848
[2024-10-24 01:51:58,480 INFO  L226             Difference]: Without dead ends: 8846
[2024-10-24 01:51:58,483 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-10-24 01:51:58,483 INFO  L432           NwaCegarLoop]: 148 mSDtfsCounter, 0 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-24 01:51:58,483 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 584 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-24 01:51:58,486 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8846 states.
[2024-10-24 01:51:58,608 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8846 to 8846.
[2024-10-24 01:51:58,616 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8846 states, 8845 states have (on average 1.4305257207461843) internal successors, (12653), 8845 states have internal predecessors, (12653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:58,630 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8846 states to 8846 states and 12653 transitions.
[2024-10-24 01:51:58,630 INFO  L78                 Accepts]: Start accepts. Automaton has 8846 states and 12653 transitions. Word has length 80
[2024-10-24 01:51:58,630 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 01:51:58,631 INFO  L471      AbstractCegarLoop]: Abstraction has 8846 states and 12653 transitions.
[2024-10-24 01:51:58,631 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:58,631 INFO  L276                IsEmpty]: Start isEmpty. Operand 8846 states and 12653 transitions.
[2024-10-24 01:51:58,634 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 112
[2024-10-24 01:51:58,634 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 01:51:58,635 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-10-24 01:51:58,635 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2024-10-24 01:51:58,635 INFO  L396      AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 01:51:58,635 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 01:51:58,635 INFO  L85        PathProgramCache]: Analyzing trace with hash 547687804, now seen corresponding path program 1 times
[2024-10-24 01:51:58,636 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 01:51:58,636 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56792244]
[2024-10-24 01:51:58,636 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 01:51:58,636 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 01:51:58,659 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 01:51:58,813 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked.
[2024-10-24 01:51:58,814 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 01:51:58,814 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56792244]
[2024-10-24 01:51:58,814 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56792244] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-24 01:51:58,814 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-24 01:51:58,814 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-10-24 01:51:58,814 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156895118]
[2024-10-24 01:51:58,814 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-24 01:51:58,814 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-10-24 01:51:58,815 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 01:51:58,815 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-10-24 01:51:58,815 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2024-10-24 01:51:58,815 INFO  L87              Difference]: Start difference. First operand 8846 states and 12653 transitions. Second operand  has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:59,091 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 01:51:59,092 INFO  L93              Difference]: Finished difference Result 63292 states and 90580 transitions.
[2024-10-24 01:51:59,092 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-10-24 01:51:59,092 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111
[2024-10-24 01:51:59,093 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 01:51:59,170 INFO  L225             Difference]: With dead ends: 63292
[2024-10-24 01:51:59,170 INFO  L226             Difference]: Without dead ends: 54490
[2024-10-24 01:51:59,192 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156
[2024-10-24 01:51:59,192 INFO  L432           NwaCegarLoop]: 254 mSDtfsCounter, 1549 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1549 SdHoareTripleChecker+Valid, 1129 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-24 01:51:59,193 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1549 Valid, 1129 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-24 01:51:59,226 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 54490 states.
[2024-10-24 01:51:59,649 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 54490 to 17646.
[2024-10-24 01:51:59,663 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 17646 states, 17645 states have (on average 1.4261830546897138) internal successors, (25165), 17645 states have internal predecessors, (25165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:59,685 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 17646 states to 17646 states and 25165 transitions.
[2024-10-24 01:51:59,686 INFO  L78                 Accepts]: Start accepts. Automaton has 17646 states and 25165 transitions. Word has length 111
[2024-10-24 01:51:59,686 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 01:51:59,686 INFO  L471      AbstractCegarLoop]: Abstraction has 17646 states and 25165 transitions.
[2024-10-24 01:51:59,686 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 13.0) internal successors, (104), 8 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:51:59,686 INFO  L276                IsEmpty]: Start isEmpty. Operand 17646 states and 25165 transitions.
[2024-10-24 01:51:59,690 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 112
[2024-10-24 01:51:59,690 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 01:51:59,690 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-10-24 01:51:59,690 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2024-10-24 01:51:59,690 INFO  L396      AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 01:51:59,691 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 01:51:59,691 INFO  L85        PathProgramCache]: Analyzing trace with hash -1176854258, now seen corresponding path program 1 times
[2024-10-24 01:51:59,691 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 01:51:59,691 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763212472]
[2024-10-24 01:51:59,691 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 01:51:59,691 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 01:51:59,709 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 01:51:59,817 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked.
[2024-10-24 01:51:59,817 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 01:51:59,817 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763212472]
[2024-10-24 01:51:59,817 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763212472] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-24 01:51:59,817 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-24 01:51:59,817 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-10-24 01:51:59,817 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217858103]
[2024-10-24 01:51:59,817 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-24 01:51:59,817 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-10-24 01:51:59,818 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 01:51:59,818 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-10-24 01:51:59,818 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2024-10-24 01:51:59,818 INFO  L87              Difference]: Start difference. First operand 17646 states and 25165 transitions. Second operand  has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:52:00,158 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 01:52:00,158 INFO  L93              Difference]: Finished difference Result 72092 states and 103092 transitions.
[2024-10-24 01:52:00,159 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-10-24 01:52:00,159 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111
[2024-10-24 01:52:00,159 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 01:52:00,240 INFO  L225             Difference]: With dead ends: 72092
[2024-10-24 01:52:00,241 INFO  L226             Difference]: Without dead ends: 63290
[2024-10-24 01:52:00,261 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156
[2024-10-24 01:52:00,262 INFO  L432           NwaCegarLoop]: 254 mSDtfsCounter, 1438 mSDsluCounter, 940 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1438 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-24 01:52:00,262 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1438 Valid, 1194 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-24 01:52:00,292 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 63290 states.
[2024-10-24 01:52:00,705 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 63290 to 30862.
[2024-10-24 01:52:00,733 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 30862 states, 30861 states have (on average 1.420984413985289) internal successors, (43853), 30861 states have internal predecessors, (43853), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:52:00,776 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 30862 states to 30862 states and 43853 transitions.
[2024-10-24 01:52:00,776 INFO  L78                 Accepts]: Start accepts. Automaton has 30862 states and 43853 transitions. Word has length 111
[2024-10-24 01:52:00,777 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 01:52:00,777 INFO  L471      AbstractCegarLoop]: Abstraction has 30862 states and 43853 transitions.
[2024-10-24 01:52:00,777 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:52:00,777 INFO  L276                IsEmpty]: Start isEmpty. Operand 30862 states and 43853 transitions.
[2024-10-24 01:52:00,780 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 112
[2024-10-24 01:52:00,780 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 01:52:00,781 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-10-24 01:52:00,781 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2024-10-24 01:52:00,781 INFO  L396      AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 01:52:00,781 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 01:52:00,781 INFO  L85        PathProgramCache]: Analyzing trace with hash -22908152, now seen corresponding path program 1 times
[2024-10-24 01:52:00,781 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 01:52:00,781 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978779861]
[2024-10-24 01:52:00,782 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 01:52:00,782 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 01:52:00,799 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 01:52:00,905 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked.
[2024-10-24 01:52:00,906 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 01:52:00,906 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978779861]
[2024-10-24 01:52:00,906 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978779861] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-24 01:52:00,906 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-24 01:52:00,906 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-10-24 01:52:00,906 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824213194]
[2024-10-24 01:52:00,906 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-24 01:52:00,907 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-10-24 01:52:00,907 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 01:52:00,907 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-10-24 01:52:00,907 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2024-10-24 01:52:00,908 INFO  L87              Difference]: Start difference. First operand 30862 states and 43853 transitions. Second operand  has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:52:01,303 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 01:52:01,304 INFO  L93              Difference]: Finished difference Result 80892 states and 115604 transitions.
[2024-10-24 01:52:01,304 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-10-24 01:52:01,304 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111
[2024-10-24 01:52:01,305 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 01:52:01,395 INFO  L225             Difference]: With dead ends: 80892
[2024-10-24 01:52:01,396 INFO  L226             Difference]: Without dead ends: 72090
[2024-10-24 01:52:01,422 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156
[2024-10-24 01:52:01,423 INFO  L432           NwaCegarLoop]: 254 mSDtfsCounter, 1272 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1272 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-24 01:52:01,424 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1272 Valid, 1250 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-24 01:52:01,462 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 72090 states.
[2024-10-24 01:52:02,149 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 72090 to 39662.
[2024-10-24 01:52:02,181 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 39662 states, 39661 states have (on average 1.4211694107561585) internal successors, (56365), 39661 states have internal predecessors, (56365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:52:02,228 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 39662 states to 39662 states and 56365 transitions.
[2024-10-24 01:52:02,229 INFO  L78                 Accepts]: Start accepts. Automaton has 39662 states and 56365 transitions. Word has length 111
[2024-10-24 01:52:02,229 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 01:52:02,229 INFO  L471      AbstractCegarLoop]: Abstraction has 39662 states and 56365 transitions.
[2024-10-24 01:52:02,229 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 12.75) internal successors, (102), 8 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:52:02,230 INFO  L276                IsEmpty]: Start isEmpty. Operand 39662 states and 56365 transitions.
[2024-10-24 01:52:02,237 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 112
[2024-10-24 01:52:02,238 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 01:52:02,238 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-10-24 01:52:02,238 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2024-10-24 01:52:02,238 INFO  L396      AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 01:52:02,238 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 01:52:02,239 INFO  L85        PathProgramCache]: Analyzing trace with hash -880808830, now seen corresponding path program 1 times
[2024-10-24 01:52:02,239 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 01:52:02,239 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562278790]
[2024-10-24 01:52:02,239 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 01:52:02,239 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 01:52:02,258 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 01:52:02,379 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked.
[2024-10-24 01:52:02,379 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 01:52:02,379 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562278790]
[2024-10-24 01:52:02,380 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562278790] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-24 01:52:02,380 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-24 01:52:02,380 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-10-24 01:52:02,380 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653472036]
[2024-10-24 01:52:02,380 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-24 01:52:02,380 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-10-24 01:52:02,380 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 01:52:02,381 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-10-24 01:52:02,381 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2024-10-24 01:52:02,381 INFO  L87              Difference]: Start difference. First operand 39662 states and 56365 transitions. Second operand  has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:52:02,820 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 01:52:02,820 INFO  L93              Difference]: Finished difference Result 89692 states and 128116 transitions.
[2024-10-24 01:52:02,821 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-10-24 01:52:02,821 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111
[2024-10-24 01:52:02,821 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 01:52:03,085 INFO  L225             Difference]: With dead ends: 89692
[2024-10-24 01:52:03,085 INFO  L226             Difference]: Without dead ends: 80890
[2024-10-24 01:52:03,129 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156
[2024-10-24 01:52:03,130 INFO  L432           NwaCegarLoop]: 255 mSDtfsCounter, 1267 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1267 SdHoareTripleChecker+Valid, 1350 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-10-24 01:52:03,131 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1267 Valid, 1350 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-10-24 01:52:03,162 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 80890 states.
[2024-10-24 01:52:03,727 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 80890 to 48462.
[2024-10-24 01:52:03,769 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 48462 states, 48461 states have (on average 1.421287220651658) internal successors, (68877), 48461 states have internal predecessors, (68877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:52:03,834 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 48462 states to 48462 states and 68877 transitions.
[2024-10-24 01:52:03,834 INFO  L78                 Accepts]: Start accepts. Automaton has 48462 states and 68877 transitions. Word has length 111
[2024-10-24 01:52:03,834 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 01:52:03,835 INFO  L471      AbstractCegarLoop]: Abstraction has 48462 states and 68877 transitions.
[2024-10-24 01:52:03,835 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:52:03,835 INFO  L276                IsEmpty]: Start isEmpty. Operand 48462 states and 68877 transitions.
[2024-10-24 01:52:03,840 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 112
[2024-10-24 01:52:03,840 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 01:52:03,840 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-10-24 01:52:03,840 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2024-10-24 01:52:03,840 INFO  L396      AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 01:52:03,840 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 01:52:03,841 INFO  L85        PathProgramCache]: Analyzing trace with hash -1771842058, now seen corresponding path program 1 times
[2024-10-24 01:52:03,841 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 01:52:03,841 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456727493]
[2024-10-24 01:52:03,841 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 01:52:03,841 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 01:52:03,858 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 01:52:03,969 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked.
[2024-10-24 01:52:03,969 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 01:52:03,969 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456727493]
[2024-10-24 01:52:03,970 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456727493] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-24 01:52:03,970 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-24 01:52:03,970 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-10-24 01:52:03,971 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254823429]
[2024-10-24 01:52:03,971 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-24 01:52:03,972 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-10-24 01:52:03,972 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 01:52:03,973 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-10-24 01:52:03,973 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2024-10-24 01:52:03,973 INFO  L87              Difference]: Start difference. First operand 48462 states and 68877 transitions. Second operand  has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:52:04,558 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 01:52:04,558 INFO  L93              Difference]: Finished difference Result 98492 states and 140628 transitions.
[2024-10-24 01:52:04,559 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-10-24 01:52:04,559 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111
[2024-10-24 01:52:04,559 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 01:52:04,807 INFO  L225             Difference]: With dead ends: 98492
[2024-10-24 01:52:04,810 INFO  L226             Difference]: Without dead ends: 89690
[2024-10-24 01:52:05,055 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156
[2024-10-24 01:52:05,056 INFO  L432           NwaCegarLoop]: 255 mSDtfsCounter, 1371 mSDsluCounter, 1204 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1371 SdHoareTripleChecker+Valid, 1459 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time
[2024-10-24 01:52:05,056 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1371 Valid, 1459 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time]
[2024-10-24 01:52:05,105 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 89690 states.
[2024-10-24 01:52:05,765 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 89690 to 57262.
[2024-10-24 01:52:05,809 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 57262 states, 57261 states have (on average 1.421368819964723) internal successors, (81389), 57261 states have internal predecessors, (81389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:52:05,876 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 57262 states to 57262 states and 81389 transitions.
[2024-10-24 01:52:05,877 INFO  L78                 Accepts]: Start accepts. Automaton has 57262 states and 81389 transitions. Word has length 111
[2024-10-24 01:52:05,877 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 01:52:05,877 INFO  L471      AbstractCegarLoop]: Abstraction has 57262 states and 81389 transitions.
[2024-10-24 01:52:05,877 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:52:05,877 INFO  L276                IsEmpty]: Start isEmpty. Operand 57262 states and 81389 transitions.
[2024-10-24 01:52:05,882 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 113
[2024-10-24 01:52:05,883 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 01:52:05,883 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-10-24 01:52:05,883 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2024-10-24 01:52:05,883 INFO  L396      AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 01:52:05,884 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 01:52:05,884 INFO  L85        PathProgramCache]: Analyzing trace with hash -721790003, now seen corresponding path program 1 times
[2024-10-24 01:52:05,884 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 01:52:05,884 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512111485]
[2024-10-24 01:52:05,884 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 01:52:05,884 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 01:52:05,902 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 01:52:06,017 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-10-24 01:52:06,018 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 01:52:06,018 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512111485]
[2024-10-24 01:52:06,018 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512111485] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-24 01:52:06,018 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-24 01:52:06,018 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2024-10-24 01:52:06,018 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524139671]
[2024-10-24 01:52:06,019 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-24 01:52:06,019 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 8 states
[2024-10-24 01:52:06,019 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 01:52:06,019 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2024-10-24 01:52:06,019 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56
[2024-10-24 01:52:06,020 INFO  L87              Difference]: Start difference. First operand 57262 states and 81389 transitions. Second operand  has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:52:06,576 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 01:52:06,577 INFO  L93              Difference]: Finished difference Result 101724 states and 145332 transitions.
[2024-10-24 01:52:06,577 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. 
[2024-10-24 01:52:06,577 INFO  L78                 Accepts]: Start accepts. Automaton has  has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112
[2024-10-24 01:52:06,577 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 01:52:06,675 INFO  L225             Difference]: With dead ends: 101724
[2024-10-24 01:52:06,675 INFO  L226             Difference]: Without dead ends: 95706
[2024-10-24 01:52:06,707 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156
[2024-10-24 01:52:06,708 INFO  L432           NwaCegarLoop]: 251 mSDtfsCounter, 1370 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 1313 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time
[2024-10-24 01:52:06,708 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 1313 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time]
[2024-10-24 01:52:06,764 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 95706 states.
[2024-10-24 01:52:07,801 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 95706 to 63278.
[2024-10-24 01:52:07,852 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 63278 states, 63277 states have (on average 1.422776048169161) internal successors, (90029), 63277 states have internal predecessors, (90029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:52:07,956 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 63278 states to 63278 states and 90029 transitions.
[2024-10-24 01:52:07,956 INFO  L78                 Accepts]: Start accepts. Automaton has 63278 states and 90029 transitions. Word has length 112
[2024-10-24 01:52:07,957 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 01:52:07,957 INFO  L471      AbstractCegarLoop]: Abstraction has 63278 states and 90029 transitions.
[2024-10-24 01:52:07,957 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:52:07,957 INFO  L276                IsEmpty]: Start isEmpty. Operand 63278 states and 90029 transitions.
[2024-10-24 01:52:07,974 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 114
[2024-10-24 01:52:07,974 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 01:52:07,975 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-10-24 01:52:07,975 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2024-10-24 01:52:07,975 INFO  L396      AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 01:52:07,975 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 01:52:07,975 INFO  L85        PathProgramCache]: Analyzing trace with hash 1311967558, now seen corresponding path program 1 times
[2024-10-24 01:52:07,975 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 01:52:07,975 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243509069]
[2024-10-24 01:52:07,976 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 01:52:07,976 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 01:52:08,011 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 01:52:08,610 INFO  L134       CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-24 01:52:08,610 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 01:52:08,610 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243509069]
[2024-10-24 01:52:08,610 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243509069] provided 0 perfect and 1 imperfect interpolant sequences
[2024-10-24 01:52:08,610 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23164332]
[2024-10-24 01:52:08,610 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 01:52:08,611 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-10-24 01:52:08,611 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-10-24 01:52:08,618 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)
[2024-10-24 01:52:08,626 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-10-24 01:52:08,787 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 01:52:08,795 INFO  L255         TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 13 conjuncts are in the unsatisfiable core
[2024-10-24 01:52:08,809 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-10-24 01:52:09,138 INFO  L134       CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-10-24 01:52:09,138 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-10-24 01:52:09,552 INFO  L134       CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-10-24 01:52:09,552 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [23164332] provided 0 perfect and 2 imperfect interpolant sequences
[2024-10-24 01:52:09,552 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-10-24 01:52:09,552 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 4] total 18
[2024-10-24 01:52:09,552 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815804149]
[2024-10-24 01:52:09,552 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-10-24 01:52:09,553 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 18 states
[2024-10-24 01:52:09,553 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 01:52:09,553 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2024-10-24 01:52:09,554 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306
[2024-10-24 01:52:09,554 INFO  L87              Difference]: Start difference. First operand 63278 states and 90029 transitions. Second operand  has 18 states, 18 states have (on average 18.11111111111111) internal successors, (326), 18 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:52:14,981 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 01:52:14,981 INFO  L93              Difference]: Finished difference Result 603788 states and 853900 transitions.
[2024-10-24 01:52:14,982 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. 
[2024-10-24 01:52:14,982 INFO  L78                 Accepts]: Start accepts. Automaton has  has 18 states, 18 states have (on average 18.11111111111111) internal successors, (326), 18 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113
[2024-10-24 01:52:14,982 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 01:52:15,802 INFO  L225             Difference]: With dead ends: 603788
[2024-10-24 01:52:15,803 INFO  L226             Difference]: Without dead ends: 540554
[2024-10-24 01:52:15,983 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5931 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=2342, Invalid=12178, Unknown=0, NotChecked=0, Total=14520
[2024-10-24 01:52:15,986 INFO  L432           NwaCegarLoop]: 172 mSDtfsCounter, 4830 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 1914 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4830 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 2017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 1914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time
[2024-10-24 01:52:15,986 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [4830 Valid, 1594 Invalid, 2017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 1914 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time]
[2024-10-24 01:52:16,370 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 540554 states.
[2024-10-24 01:52:22,554 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 540554 to 441046.
[2024-10-24 01:52:22,890 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 441046 states, 441045 states have (on average 1.396422133795871) internal successors, (615885), 441045 states have internal predecessors, (615885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:52:24,505 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 441046 states to 441046 states and 615885 transitions.
[2024-10-24 01:52:24,508 INFO  L78                 Accepts]: Start accepts. Automaton has 441046 states and 615885 transitions. Word has length 113
[2024-10-24 01:52:24,509 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 01:52:24,509 INFO  L471      AbstractCegarLoop]: Abstraction has 441046 states and 615885 transitions.
[2024-10-24 01:52:24,509 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 18 states, 18 states have (on average 18.11111111111111) internal successors, (326), 18 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:52:24,509 INFO  L276                IsEmpty]: Start isEmpty. Operand 441046 states and 615885 transitions.
[2024-10-24 01:52:24,528 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 114
[2024-10-24 01:52:24,528 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 01:52:24,530 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-10-24 01:52:24,550 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-10-24 01:52:24,733 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,SelfDestructingSolverStorable20
[2024-10-24 01:52:24,734 INFO  L396      AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 01:52:24,735 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 01:52:24,735 INFO  L85        PathProgramCache]: Analyzing trace with hash -646359828, now seen corresponding path program 1 times
[2024-10-24 01:52:24,735 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 01:52:24,735 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763360977]
[2024-10-24 01:52:24,735 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 01:52:24,735 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 01:52:24,817 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 01:52:24,903 INFO  L134       CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-24 01:52:24,904 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 01:52:24,904 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763360977]
[2024-10-24 01:52:24,904 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763360977] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-24 01:52:24,904 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-24 01:52:24,904 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-24 01:52:24,904 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910009985]
[2024-10-24 01:52:24,904 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-24 01:52:24,904 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-10-24 01:52:24,904 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 01:52:24,905 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-10-24 01:52:24,905 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-10-24 01:52:24,905 INFO  L87              Difference]: Start difference. First operand 441046 states and 615885 transitions. Second operand  has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:52:27,303 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 01:52:27,304 INFO  L93              Difference]: Finished difference Result 778559 states and 1086507 transitions.
[2024-10-24 01:52:27,305 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-10-24 01:52:27,305 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113
[2024-10-24 01:52:27,306 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 01:52:29,085 INFO  L225             Difference]: With dead ends: 778559
[2024-10-24 01:52:29,085 INFO  L226             Difference]: Without dead ends: 337557
[2024-10-24 01:52:29,482 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
[2024-10-24 01:52:29,483 INFO  L432           NwaCegarLoop]: 199 mSDtfsCounter, 69 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-24 01:52:29,486 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 336 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-24 01:52:29,762 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 337557 states.
[2024-10-24 01:52:33,527 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 337557 to 337555.
[2024-10-24 01:52:33,764 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 337555 states, 337554 states have (on average 1.381725590572175) internal successors, (466407), 337554 states have internal predecessors, (466407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:52:34,308 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 337555 states to 337555 states and 466407 transitions.
[2024-10-24 01:52:34,308 INFO  L78                 Accepts]: Start accepts. Automaton has 337555 states and 466407 transitions. Word has length 113
[2024-10-24 01:52:34,308 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 01:52:34,309 INFO  L471      AbstractCegarLoop]: Abstraction has 337555 states and 466407 transitions.
[2024-10-24 01:52:34,309 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2024-10-24 01:52:34,309 INFO  L276                IsEmpty]: Start isEmpty. Operand 337555 states and 466407 transitions.
[2024-10-24 01:52:34,315 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 115
[2024-10-24 01:52:34,316 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 01:52:34,316 INFO  L215           NwaCegarLoop]: trace histogram [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]
[2024-10-24 01:52:34,316 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2024-10-24 01:52:34,316 INFO  L396      AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 01:52:34,318 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 01:52:34,318 INFO  L85        PathProgramCache]: Analyzing trace with hash -843820291, now seen corresponding path program 1 times
[2024-10-24 01:52:34,318 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 01:52:34,318 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907399830]
[2024-10-24 01:52:34,318 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 01:52:34,318 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 01:52:35,068 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 01:52:35,942 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-24 01:52:35,942 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 01:52:35,942 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907399830]
[2024-10-24 01:52:35,942 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907399830] provided 0 perfect and 1 imperfect interpolant sequences
[2024-10-24 01:52:35,942 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852292537]
[2024-10-24 01:52:35,942 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 01:52:35,942 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-10-24 01:52:35,942 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-10-24 01:52:35,947 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)
[2024-10-24 01:52:35,948 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-10-24 01:52:36,072 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 01:52:36,076 INFO  L255         TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 16 conjuncts are in the unsatisfiable core
[2024-10-24 01:52:36,078 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-10-24 01:52:36,677 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-24 01:52:36,677 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-10-24 01:52:37,987 INFO  L134       CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-24 01:52:37,988 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852292537] provided 0 perfect and 2 imperfect interpolant sequences
[2024-10-24 01:52:37,989 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2024-10-24 01:52:37,989 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 26
[2024-10-24 01:52:37,989 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123399122]
[2024-10-24 01:52:37,989 INFO  L85    oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2024-10-24 01:52:37,990 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 27 states
[2024-10-24 01:52:37,991 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 01:52:37,991 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants.
[2024-10-24 01:52:37,991 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=636, Unknown=0, NotChecked=0, Total=702
[2024-10-24 01:52:37,992 INFO  L87              Difference]: Start difference. First operand 337555 states and 466407 transitions. Second operand  has 27 states, 27 states have (on average 11.481481481481481) internal successors, (310), 26 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)