./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rether.2.prop1-func-interl.c --full-output --architecture 64bit


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


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/hardware-verification-bv/btor2c-lazyMod.rether.2.prop1-func-interl.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) )

 --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2246b22224e7d45f76a4712ded88256a5e87d92c66ef345f72a41167604dbb61
--- Real Ultimate output ---
This is Ultimate 0.2.5-dev-4a390ef-m
[2024-10-24 04:44:36,909 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-10-24 04:44:36,974 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf
[2024-10-24 04:44:36,979 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-10-24 04:44:36,982 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-10-24 04:44:37,010 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-10-24 04:44:37,012 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-10-24 04:44:37,013 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-10-24 04:44:37,013 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-10-24 04:44:37,014 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-10-24 04:44:37,014 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-10-24 04:44:37,015 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-10-24 04:44:37,015 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-10-24 04:44:37,016 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-10-24 04:44:37,018 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-10-24 04:44:37,019 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-10-24 04:44:37,019 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-10-24 04:44:37,019 INFO  L153        SettingsManager]:  * Overapproximate operations on floating types=true
[2024-10-24 04:44:37,020 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-10-24 04:44:37,020 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-10-24 04:44:37,020 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-10-24 04:44:37,022 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-10-24 04:44:37,025 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-10-24 04:44:37,025 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-10-24 04:44:37,026 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-10-24 04:44:37,026 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-10-24 04:44:37,026 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-10-24 04:44:37,026 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-10-24 04:44:37,027 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-10-24 04:44:37,027 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-24 04:44:37,027 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-10-24 04:44:37,027 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-10-24 04:44:37,027 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-10-24 04:44:37,028 INFO  L153        SettingsManager]:  * Trace refinement strategy=CAMEL
[2024-10-24 04:44:37,028 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2024-10-24 04:44:37,030 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-10-24 04:44:37,030 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-10-24 04:44:37,030 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-10-24 04:44:37,031 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-10-24 04:44:37,031 INFO  L153        SettingsManager]:  * Looper check in Petri net analysis=SEMANTIC
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )


Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2246b22224e7d45f76a4712ded88256a5e87d92c66ef345f72a41167604dbb61
[2024-10-24 04:44:37,306 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-10-24 04:44:37,334 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-10-24 04:44:37,338 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-10-24 04:44:37,339 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-10-24 04:44:37,340 INFO  L274        PluginConnector]: CDTParser initialized
[2024-10-24 04:44:37,341 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rether.2.prop1-func-interl.c
[2024-10-24 04:44:38,778 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-10-24 04:44:39,121 INFO  L384              CDTParser]: Found 1 translation units.
[2024-10-24 04:44:39,121 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rether.2.prop1-func-interl.c
[2024-10-24 04:44:39,150 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f51da73c2/fbf3e9590f964e4391b5de90e4c2bb3d/FLAGda28abdef
[2024-10-24 04:44:39,172 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f51da73c2/fbf3e9590f964e4391b5de90e4c2bb3d
[2024-10-24 04:44:39,175 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-10-24 04:44:39,176 INFO  L133        ToolchainWalker]: Walking toolchain with 6 elements.
[2024-10-24 04:44:39,178 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-10-24 04:44:39,178 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-10-24 04:44:39,184 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-10-24 04:44:39,184 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:44:39" (1/1) ...
[2024-10-24 04:44:39,185 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7baace64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:44:39, skipping insertion in model container
[2024-10-24 04:44:39,185 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 04:44:39" (1/1) ...
[2024-10-24 04:44:39,284 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-10-24 04:44:39,528 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rether.2.prop1-func-interl.c[1173,1186]
[2024-10-24 04:44:40,149 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-24 04:44:40,161 INFO  L200         MainTranslator]: Completed pre-run
[2024-10-24 04:44:40,173 WARN  L248   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.rether.2.prop1-func-interl.c[1173,1186]
[2024-10-24 04:44:40,537 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-10-24 04:44:40,556 INFO  L204         MainTranslator]: Completed translation
[2024-10-24 04:44:40,557 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:44:40 WrapperNode
[2024-10-24 04:44:40,557 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-10-24 04:44:40,558 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-10-24 04:44:40,558 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-10-24 04:44:40,559 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-10-24 04:44:40,565 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:44:40" (1/1) ...
[2024-10-24 04:44:40,682 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:44:40" (1/1) ...
[2024-10-24 04:44:42,574 INFO  L138                Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 14672
[2024-10-24 04:44:42,575 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-10-24 04:44:42,576 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-10-24 04:44:42,576 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-10-24 04:44:42,576 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-10-24 04:44:42,592 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:44:40" (1/1) ...
[2024-10-24 04:44:42,592 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:44:40" (1/1) ...
[2024-10-24 04:44:43,333 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:44:40" (1/1) ...
[2024-10-24 04:44:43,933 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 04:44:43,934 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:44:40" (1/1) ...
[2024-10-24 04:44:43,934 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:44:40" (1/1) ...
[2024-10-24 04:44:44,485 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:44:40" (1/1) ...
[2024-10-24 04:44:44,555 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:44:40" (1/1) ...
[2024-10-24 04:44:44,639 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:44:40" (1/1) ...
[2024-10-24 04:44:44,693 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:44:40" (1/1) ...
[2024-10-24 04:44:45,028 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-10-24 04:44:45,029 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-10-24 04:44:45,029 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-10-24 04:44:45,029 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-10-24 04:44:45,030 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:44:40" (1/1) ...
[2024-10-24 04:44:45,036 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-10-24 04:44:45,046 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-10-24 04:44:45,060 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 04:44:45,061 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 04:44:45,095 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-10-24 04:44:45,095 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~int#0
[2024-10-24 04:44:45,095 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-10-24 04:44:45,096 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-10-24 04:44:45,775 INFO  L238             CfgBuilder]: Building ICFG
[2024-10-24 04:44:45,777 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-10-24 04:45:06,882 INFO  L?                        ?]: Removed 8271 outVars from TransFormulas that were not future-live.
[2024-10-24 04:45:06,882 INFO  L287             CfgBuilder]: Performing block encoding
[2024-10-24 04:45:07,106 INFO  L309             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-10-24 04:45:07,107 INFO  L314             CfgBuilder]: Removed 1 assume(true) statements.
[2024-10-24 04:45:07,107 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:45:07 BoogieIcfgContainer
[2024-10-24 04:45:07,107 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-10-24 04:45:07,109 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-10-24 04:45:07,110 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-10-24 04:45:07,113 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-10-24 04:45:07,114 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 04:44:39" (1/3) ...
[2024-10-24 04:45:07,114 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50256d20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:45:07, skipping insertion in model container
[2024-10-24 04:45:07,116 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 04:44:40" (2/3) ...
[2024-10-24 04:45:07,116 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50256d20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 04:45:07, skipping insertion in model container
[2024-10-24 04:45:07,116 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 04:45:07" (3/3) ...
[2024-10-24 04:45:07,117 INFO  L112   eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.rether.2.prop1-func-interl.c
[2024-10-24 04:45:07,134 INFO  L209   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-10-24 04:45:07,135 INFO  L149   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-10-24 04:45:07,302 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-10-24 04:45:07,310 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;@74bfb11f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-10-24 04:45:07,313 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-10-24 04:45:07,335 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 5207 states, 5205 states have (on average 1.5004803073967339) internal successors, (7810), 5206 states have internal predecessors, (7810), 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 04:45:07,361 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 217
[2024-10-24 04:45:07,361 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 04:45:07,362 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-24 04:45:07,363 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 04:45:07,367 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 04:45:07,368 INFO  L85        PathProgramCache]: Analyzing trace with hash -1554448024, now seen corresponding path program 1 times
[2024-10-24 04:45:07,377 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 04:45:07,377 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266000533]
[2024-10-24 04:45:07,377 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 04:45:07,378 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 04:45:07,763 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 04:45:08,673 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 04:45:08,674 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 04:45:08,674 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266000533]
[2024-10-24 04:45:08,675 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266000533] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-24 04:45:08,676 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-24 04:45:08,677 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-24 04:45:08,678 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306252389]
[2024-10-24 04:45:08,679 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-24 04:45:08,684 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-24 04:45:08,684 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 04:45:08,710 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-24 04:45:08,711 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-24 04:45:08,724 INFO  L87              Difference]: Start difference. First operand  has 5207 states, 5205 states have (on average 1.5004803073967339) internal successors, (7810), 5206 states have internal predecessors, (7810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand  has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 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 04:45:09,072 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 04:45:09,072 INFO  L93              Difference]: Finished difference Result 10158 states and 15238 transitions.
[2024-10-24 04:45:09,074 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-24 04:45:09,075 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 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 216
[2024-10-24 04:45:09,077 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 04:45:09,120 INFO  L225             Difference]: With dead ends: 10158
[2024-10-24 04:45:09,121 INFO  L226             Difference]: Without dead ends: 5208
[2024-10-24 04:45:09,137 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-24 04:45:09,141 INFO  L432           NwaCegarLoop]: 7805 mSDtfsCounter, 0 mSDsluCounter, 15605 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23410 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-24 04:45:09,144 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23410 Invalid, 13 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-24 04:45:09,171 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5208 states.
[2024-10-24 04:45:09,309 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5208 to 5208.
[2024-10-24 04:45:09,320 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5208 states, 5207 states have (on average 1.499903975417707) internal successors, (7810), 5207 states have internal predecessors, (7810), 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 04:45:09,335 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5208 states to 5208 states and 7810 transitions.
[2024-10-24 04:45:09,337 INFO  L78                 Accepts]: Start accepts. Automaton has 5208 states and 7810 transitions. Word has length 216
[2024-10-24 04:45:09,339 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 04:45:09,341 INFO  L471      AbstractCegarLoop]: Abstraction has 5208 states and 7810 transitions.
[2024-10-24 04:45:09,341 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 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 04:45:09,341 INFO  L276                IsEmpty]: Start isEmpty. Operand 5208 states and 7810 transitions.
[2024-10-24 04:45:09,346 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 218
[2024-10-24 04:45:09,347 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 04:45:09,347 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-24 04:45:09,348 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2024-10-24 04:45:09,348 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 04:45:09,349 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 04:45:09,349 INFO  L85        PathProgramCache]: Analyzing trace with hash -941551957, now seen corresponding path program 1 times
[2024-10-24 04:45:09,349 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 04:45:09,350 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455457789]
[2024-10-24 04:45:09,350 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 04:45:09,350 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 04:45:09,480 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 04:45:09,849 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 04:45:09,849 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 04:45:09,849 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455457789]
[2024-10-24 04:45:09,849 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455457789] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-24 04:45:09,849 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-24 04:45:09,850 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-24 04:45:09,850 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845890404]
[2024-10-24 04:45:09,850 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-24 04:45:09,855 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-24 04:45:09,855 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 04:45:09,856 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-24 04:45:09,856 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-24 04:45:09,857 INFO  L87              Difference]: Start difference. First operand 5208 states and 7810 transitions. Second operand  has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 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 04:45:10,188 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 04:45:10,188 INFO  L93              Difference]: Finished difference Result 10161 states and 15238 transitions.
[2024-10-24 04:45:10,190 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-24 04:45:10,190 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 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 217
[2024-10-24 04:45:10,191 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 04:45:10,208 INFO  L225             Difference]: With dead ends: 10161
[2024-10-24 04:45:10,208 INFO  L226             Difference]: Without dead ends: 5210
[2024-10-24 04:45:10,217 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-24 04:45:10,218 INFO  L432           NwaCegarLoop]: 7805 mSDtfsCounter, 0 mSDsluCounter, 15602 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23407 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-24 04:45:10,219 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23407 Invalid, 16 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-24 04:45:10,227 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5210 states.
[2024-10-24 04:45:10,290 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5210 to 5210.
[2024-10-24 04:45:10,300 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5210 states, 5209 states have (on average 1.499712036859282) internal successors, (7812), 5209 states have internal predecessors, (7812), 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 04:45:10,314 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5210 states to 5210 states and 7812 transitions.
[2024-10-24 04:45:10,315 INFO  L78                 Accepts]: Start accepts. Automaton has 5210 states and 7812 transitions. Word has length 217
[2024-10-24 04:45:10,316 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 04:45:10,316 INFO  L471      AbstractCegarLoop]: Abstraction has 5210 states and 7812 transitions.
[2024-10-24 04:45:10,316 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 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 04:45:10,317 INFO  L276                IsEmpty]: Start isEmpty. Operand 5210 states and 7812 transitions.
[2024-10-24 04:45:10,319 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 219
[2024-10-24 04:45:10,320 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 04:45:10,320 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-24 04:45:10,320 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2024-10-24 04:45:10,320 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 04:45:10,321 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 04:45:10,321 INFO  L85        PathProgramCache]: Analyzing trace with hash -221304159, now seen corresponding path program 1 times
[2024-10-24 04:45:10,325 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 04:45:10,325 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509653308]
[2024-10-24 04:45:10,325 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 04:45:10,325 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 04:45:10,430 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 04:45:10,850 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 04:45:10,851 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 04:45:10,851 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509653308]
[2024-10-24 04:45:10,851 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509653308] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-24 04:45:10,851 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-24 04:45:10,852 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2024-10-24 04:45:10,852 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898049717]
[2024-10-24 04:45:10,852 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-24 04:45:10,853 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-10-24 04:45:10,853 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 04:45:10,854 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-10-24 04:45:10,854 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2024-10-24 04:45:10,854 INFO  L87              Difference]: Start difference. First operand 5210 states and 7812 transitions. Second operand  has 5 states, 5 states have (on average 43.6) internal successors, (218), 4 states have internal predecessors, (218), 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 04:45:11,146 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 04:45:11,147 INFO  L93              Difference]: Finished difference Result 14122 states and 21177 transitions.
[2024-10-24 04:45:11,147 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-10-24 04:45:11,147 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 43.6) internal successors, (218), 4 states have internal predecessors, (218), 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 218
[2024-10-24 04:45:11,148 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 04:45:11,180 INFO  L225             Difference]: With dead ends: 14122
[2024-10-24 04:45:11,181 INFO  L226             Difference]: Without dead ends: 9169
[2024-10-24 04:45:11,192 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2024-10-24 04:45:11,195 INFO  L432           NwaCegarLoop]: 7801 mSDtfsCounter, 6118 mSDsluCounter, 23015 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6118 SdHoareTripleChecker+Valid, 30816 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-24 04:45:11,196 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [6118 Valid, 30816 Invalid, 31 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-24 04:45:11,210 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 9169 states.
[2024-10-24 04:45:11,331 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 9169 to 5372.
[2024-10-24 04:45:11,347 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5372 states, 5371 states have (on average 1.499534537330106) internal successors, (8054), 5371 states have internal predecessors, (8054), 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 04:45:11,362 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5372 states to 5372 states and 8054 transitions.
[2024-10-24 04:45:11,362 INFO  L78                 Accepts]: Start accepts. Automaton has 5372 states and 8054 transitions. Word has length 218
[2024-10-24 04:45:11,363 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 04:45:11,363 INFO  L471      AbstractCegarLoop]: Abstraction has 5372 states and 8054 transitions.
[2024-10-24 04:45:11,363 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 43.6) internal successors, (218), 4 states have internal predecessors, (218), 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 04:45:11,363 INFO  L276                IsEmpty]: Start isEmpty. Operand 5372 states and 8054 transitions.
[2024-10-24 04:45:11,515 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2690
[2024-10-24 04:45:11,515 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 04:45:11,519 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-24 04:45:11,520 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2024-10-24 04:45:11,520 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 04:45:11,521 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 04:45:11,522 INFO  L85        PathProgramCache]: Analyzing trace with hash 1396629512, now seen corresponding path program 1 times
[2024-10-24 04:45:11,522 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 04:45:11,523 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106220418]
[2024-10-24 04:45:11,523 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 04:45:11,523 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 04:45:15,637 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 04:45:22,023 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-24 04:45:22,024 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 04:45:22,024 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106220418]
[2024-10-24 04:45:22,024 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106220418] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-24 04:45:22,024 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-24 04:45:22,025 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-24 04:45:22,025 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509750613]
[2024-10-24 04:45:22,025 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-24 04:45:22,028 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-24 04:45:22,028 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 04:45:22,030 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-24 04:45:22,030 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-24 04:45:22,036 INFO  L87              Difference]: Start difference. First operand 5372 states and 8054 transitions. Second operand  has 4 states, 4 states have (on average 672.25) internal successors, (2689), 3 states have internal predecessors, (2689), 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 04:45:22,197 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 04:45:22,197 INFO  L93              Difference]: Finished difference Result 10325 states and 15481 transitions.
[2024-10-24 04:45:22,198 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-24 04:45:22,200 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 672.25) internal successors, (2689), 3 states have internal predecessors, (2689), 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 2689
[2024-10-24 04:45:22,201 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 04:45:22,230 INFO  L225             Difference]: With dead ends: 10325
[2024-10-24 04:45:22,230 INFO  L226             Difference]: Without dead ends: 5372
[2024-10-24 04:45:22,240 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-10-24 04:45:22,241 INFO  L432           NwaCegarLoop]: 7798 mSDtfsCounter, 7437 mSDsluCounter, 7796 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7437 SdHoareTripleChecker+Valid, 15594 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-10-24 04:45:22,243 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [7437 Valid, 15594 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-10-24 04:45:22,251 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5372 states.
[2024-10-24 04:45:22,323 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5372 to 5372.
[2024-10-24 04:45:22,331 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5372 states, 5371 states have (on average 1.4993483522621485) internal successors, (8053), 5371 states have internal predecessors, (8053), 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 04:45:22,342 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5372 states to 5372 states and 8053 transitions.
[2024-10-24 04:45:22,343 INFO  L78                 Accepts]: Start accepts. Automaton has 5372 states and 8053 transitions. Word has length 2689
[2024-10-24 04:45:22,344 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 04:45:22,344 INFO  L471      AbstractCegarLoop]: Abstraction has 5372 states and 8053 transitions.
[2024-10-24 04:45:22,345 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 672.25) internal successors, (2689), 3 states have internal predecessors, (2689), 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 04:45:22,345 INFO  L276                IsEmpty]: Start isEmpty. Operand 5372 states and 8053 transitions.
[2024-10-24 04:45:22,600 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2691
[2024-10-24 04:45:22,600 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 04:45:22,602 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-24 04:45:22,602 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2024-10-24 04:45:22,603 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 04:45:22,603 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 04:45:22,604 INFO  L85        PathProgramCache]: Analyzing trace with hash -1415697649, now seen corresponding path program 1 times
[2024-10-24 04:45:22,605 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 04:45:22,605 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586786414]
[2024-10-24 04:45:22,606 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 04:45:22,606 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 04:45:24,986 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 04:45:28,123 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-24 04:45:28,124 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 04:45:28,124 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586786414]
[2024-10-24 04:45:28,125 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [586786414] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-24 04:45:28,125 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-24 04:45:28,125 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2024-10-24 04:45:28,126 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613939041]
[2024-10-24 04:45:28,126 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-24 04:45:28,128 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-10-24 04:45:28,129 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 04:45:28,132 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-10-24 04:45:28,133 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2024-10-24 04:45:28,133 INFO  L87              Difference]: Start difference. First operand 5372 states and 8053 transitions. Second operand  has 4 states, 4 states have (on average 672.5) internal successors, (2690), 3 states have internal predecessors, (2690), 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 04:45:28,294 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 04:45:28,294 INFO  L93              Difference]: Finished difference Result 10325 states and 15479 transitions.
[2024-10-24 04:45:28,295 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-24 04:45:28,296 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 672.5) internal successors, (2690), 3 states have internal predecessors, (2690), 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 2690
[2024-10-24 04:45:28,296 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 04:45:28,314 INFO  L225             Difference]: With dead ends: 10325
[2024-10-24 04:45:28,318 INFO  L226             Difference]: Without dead ends: 5372
[2024-10-24 04:45:28,324 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2024-10-24 04:45:28,326 INFO  L432           NwaCegarLoop]: 7797 mSDtfsCounter, 7427 mSDsluCounter, 7795 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7427 SdHoareTripleChecker+Valid, 15592 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-24 04:45:28,328 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [7427 Valid, 15592 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-24 04:45:28,337 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5372 states.
[2024-10-24 04:45:28,415 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5372 to 5372.
[2024-10-24 04:45:28,423 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5372 states, 5371 states have (on average 1.499162167194191) internal successors, (8052), 5371 states have internal predecessors, (8052), 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 04:45:28,433 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5372 states to 5372 states and 8052 transitions.
[2024-10-24 04:45:28,433 INFO  L78                 Accepts]: Start accepts. Automaton has 5372 states and 8052 transitions. Word has length 2690
[2024-10-24 04:45:28,434 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 04:45:28,435 INFO  L471      AbstractCegarLoop]: Abstraction has 5372 states and 8052 transitions.
[2024-10-24 04:45:28,436 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 672.5) internal successors, (2690), 3 states have internal predecessors, (2690), 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 04:45:28,436 INFO  L276                IsEmpty]: Start isEmpty. Operand 5372 states and 8052 transitions.
[2024-10-24 04:45:28,480 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2692
[2024-10-24 04:45:28,481 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 04:45:28,483 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-24 04:45:28,483 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2024-10-24 04:45:28,484 INFO  L396      AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 04:45:28,484 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 04:45:28,485 INFO  L85        PathProgramCache]: Analyzing trace with hash 1484595145, now seen corresponding path program 1 times
[2024-10-24 04:45:28,485 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 04:45:28,485 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540085796]
[2024-10-24 04:45:28,486 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 04:45:28,486 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 04:45:30,136 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 04:45:34,162 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked.
[2024-10-24 04:45:34,163 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 04:45:34,163 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540085796]
[2024-10-24 04:45:34,163 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540085796] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-24 04:45:34,164 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-24 04:45:34,164 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-10-24 04:45:34,164 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920906949]
[2024-10-24 04:45:34,164 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-24 04:45:34,167 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-10-24 04:45:34,167 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 04:45:34,169 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-10-24 04:45:34,170 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-10-24 04:45:34,170 INFO  L87              Difference]: Start difference. First operand 5372 states and 8052 transitions. Second operand  has 5 states, 5 states have (on average 522.4) internal successors, (2612), 5 states have internal predecessors, (2612), 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 04:45:34,364 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 04:45:34,364 INFO  L93              Difference]: Finished difference Result 10329 states and 15482 transitions.
[2024-10-24 04:45:34,365 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. 
[2024-10-24 04:45:34,366 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 522.4) internal successors, (2612), 5 states have internal predecessors, (2612), 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 2691
[2024-10-24 04:45:34,374 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 04:45:34,388 INFO  L225             Difference]: With dead ends: 10329
[2024-10-24 04:45:34,389 INFO  L226             Difference]: Without dead ends: 5376
[2024-10-24 04:45:34,399 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-10-24 04:45:34,400 INFO  L432           NwaCegarLoop]: 7803 mSDtfsCounter, 0 mSDsluCounter, 23384 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31187 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time
[2024-10-24 04:45:34,400 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31187 Invalid, 37 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time]
[2024-10-24 04:45:34,411 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5376 states.
[2024-10-24 04:45:34,489 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5376 to 5372.
[2024-10-24 04:45:34,497 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5372 states, 5371 states have (on average 1.499162167194191) internal successors, (8052), 5371 states have internal predecessors, (8052), 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 04:45:34,560 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5372 states to 5372 states and 8052 transitions.
[2024-10-24 04:45:34,561 INFO  L78                 Accepts]: Start accepts. Automaton has 5372 states and 8052 transitions. Word has length 2691
[2024-10-24 04:45:34,565 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 04:45:34,566 INFO  L471      AbstractCegarLoop]: Abstraction has 5372 states and 8052 transitions.
[2024-10-24 04:45:34,569 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 522.4) internal successors, (2612), 5 states have internal predecessors, (2612), 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 04:45:34,569 INFO  L276                IsEmpty]: Start isEmpty. Operand 5372 states and 8052 transitions.
[2024-10-24 04:45:34,614 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2693
[2024-10-24 04:45:34,615 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 04:45:34,616 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-10-24 04:45:34,617 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2024-10-24 04:45:34,617 INFO  L396      AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 04:45:34,617 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 04:45:34,618 INFO  L85        PathProgramCache]: Analyzing trace with hash -313302582, now seen corresponding path program 1 times
[2024-10-24 04:45:34,619 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 04:45:34,619 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176700114]
[2024-10-24 04:45:34,619 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 04:45:34,620 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 04:45:36,288 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-10-24 04:45:41,201 INFO  L134       CoverageAnalysis]: Checked inductivity of 86 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-10-24 04:45:41,202 INFO  L136   FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2024-10-24 04:45:41,202 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176700114]
[2024-10-24 04:45:41,202 INFO  L158   FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176700114] provided 1 perfect and 0 imperfect interpolant sequences
[2024-10-24 04:45:41,202 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2024-10-24 04:45:41,202 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2024-10-24 04:45:41,202 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270939971]
[2024-10-24 04:45:41,202 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-10-24 04:45:41,205 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2024-10-24 04:45:41,205 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2024-10-24 04:45:41,207 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2024-10-24 04:45:41,207 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-10-24 04:45:41,208 INFO  L87              Difference]: Start difference. First operand 5372 states and 8052 transitions. Second operand  has 6 states, 6 states have (on average 448.6666666666667) internal successors, (2692), 5 states have internal predecessors, (2692), 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 04:45:41,810 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-10-24 04:45:41,811 INFO  L93              Difference]: Finished difference Result 10331 states and 15485 transitions.
[2024-10-24 04:45:41,811 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-10-24 04:45:41,812 INFO  L78                 Accepts]: Start accepts. Automaton has  has 6 states, 6 states have (on average 448.6666666666667) internal successors, (2692), 5 states have internal predecessors, (2692), 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 2692
[2024-10-24 04:45:41,813 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-10-24 04:45:41,822 INFO  L225             Difference]: With dead ends: 10331
[2024-10-24 04:45:41,822 INFO  L226             Difference]: Without dead ends: 5376
[2024-10-24 04:45:41,828 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30
[2024-10-24 04:45:41,828 INFO  L432           NwaCegarLoop]: 7640 mSDtfsCounter, 7438 mSDsluCounter, 22912 mSDsCounter, 0 mSdLazyCounter, 668 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7438 SdHoareTripleChecker+Valid, 30552 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time
[2024-10-24 04:45:41,829 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [7438 Valid, 30552 Invalid, 668 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 668 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time]
[2024-10-24 04:45:41,835 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 5376 states.
[2024-10-24 04:45:41,890 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 5376 to 5374.
[2024-10-24 04:45:41,897 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 5374 states, 5373 states have (on average 1.4989763632979713) internal successors, (8054), 5373 states have internal predecessors, (8054), 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 04:45:41,906 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 5374 states to 5374 states and 8054 transitions.
[2024-10-24 04:45:41,906 INFO  L78                 Accepts]: Start accepts. Automaton has 5374 states and 8054 transitions. Word has length 2692
[2024-10-24 04:45:41,907 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-10-24 04:45:41,908 INFO  L471      AbstractCegarLoop]: Abstraction has 5374 states and 8054 transitions.
[2024-10-24 04:45:41,909 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 6 states, 6 states have (on average 448.6666666666667) internal successors, (2692), 5 states have internal predecessors, (2692), 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 04:45:41,909 INFO  L276                IsEmpty]: Start isEmpty. Operand 5374 states and 8054 transitions.
[2024-10-24 04:45:41,952 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 2694
[2024-10-24 04:45:41,952 INFO  L207           NwaCegarLoop]: Found error trace
[2024-10-24 04:45:41,953 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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[2024-10-24 04:45:41,954 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2024-10-24 04:45:41,954 INFO  L396      AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-10-24 04:45:41,954 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-10-24 04:45:41,955 INFO  L85        PathProgramCache]: Analyzing trace with hash 573590479, now seen corresponding path program 1 times
[2024-10-24 04:45:41,956 INFO  L118   FreeRefinementEngine]: Executing refinement strategy CAMEL
[2024-10-24 04:45:41,956 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038711834]
[2024-10-24 04:45:41,956 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-10-24 04:45:41,956 INFO  L127          SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2024-10-24 04:45:44,221 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat