/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-99.i


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 02:00:47,974 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 02:00:48,032 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-03 02:00:48,036 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 02:00:48,036 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 02:00:48,058 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 02:00:48,059 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 02:00:48,059 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 02:00:48,061 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 02:00:48,063 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 02:00:48,063 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 02:00:48,063 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 02:00:48,064 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 02:00:48,064 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 02:00:48,064 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 02:00:48,064 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 02:00:48,065 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 02:00:48,065 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 02:00:48,065 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 02:00:48,065 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 02:00:48,065 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 02:00:48,066 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 02:00:48,066 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 02:00:48,066 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 02:00:48,066 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 02:00:48,066 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 02:00:48,066 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 02:00:48,067 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 02:00:48,067 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 02:00:48,067 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 02:00:48,067 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 02:00:48,067 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 02:00:48,067 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 02:00:48,067 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 02:00:48,068 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 02:00:48,068 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 02:00:48,068 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 02:00:48,068 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 02:00:48,068 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 02:00:48,068 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 02:00:48,068 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 02:00:48,069 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 02:00:48,069 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 02:00:48,069 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 02:00:48,069 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt
[2024-11-03 02:00:48,256 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 02:00:48,272 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 02:00:48,275 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 02:00:48,276 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 02:00:48,276 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 02:00:48,277 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-99.i
[2024-11-03 02:00:49,510 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 02:00:49,669 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 02:00:49,669 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-99.i
[2024-11-03 02:00:49,676 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5da36f86/f7e3576fe55f4ac985517a26ea613f6e/FLAGb68fbff0c
[2024-11-03 02:00:50,066 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5da36f86/f7e3576fe55f4ac985517a26ea613f6e
[2024-11-03 02:00:50,069 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 02:00:50,070 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 02:00:50,075 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 02:00:50,075 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 02:00:50,078 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 02:00:50,079 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:00:50" (1/1) ...
[2024-11-03 02:00:50,079 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@724d1a4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50, skipping insertion in model container
[2024-11-03 02:00:50,080 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:00:50" (1/1) ...
[2024-11-03 02:00:50,106 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 02:00:50,225 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-99.i[915,928]
[2024-11-03 02:00:50,263 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 02:00:50,274 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 02:00:50,283 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_operatoramount_amount50_file-99.i[915,928]
[2024-11-03 02:00:50,306 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 02:00:50,321 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 02:00:50,321 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50 WrapperNode
[2024-11-03 02:00:50,321 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 02:00:50,322 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 02:00:50,322 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 02:00:50,322 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 02:00:50,327 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ...
[2024-11-03 02:00:50,334 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ...
[2024-11-03 02:00:50,353 INFO  L138                Inliner]: procedures = 27, calls = 42, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 160
[2024-11-03 02:00:50,353 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 02:00:50,354 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 02:00:50,354 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 02:00:50,354 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 02:00:50,373 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ...
[2024-11-03 02:00:50,373 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ...
[2024-11-03 02:00:50,378 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ...
[2024-11-03 02:00:50,389 INFO  L175           MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0].
[2024-11-03 02:00:50,390 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ...
[2024-11-03 02:00:50,390 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ...
[2024-11-03 02:00:50,396 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ...
[2024-11-03 02:00:50,398 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ...
[2024-11-03 02:00:50,399 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ...
[2024-11-03 02:00:50,401 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ...
[2024-11-03 02:00:50,403 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 02:00:50,404 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 02:00:50,404 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 02:00:50,404 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 02:00:50,405 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (1/1) ...
[2024-11-03 02:00:50,413 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 02:00:50,423 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 02:00:50,438 INFO  L229       MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null)
[2024-11-03 02:00:50,440 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process
[2024-11-03 02:00:50,459 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 02:00:50,460 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 02:00:50,460 INFO  L130     BoogieDeclarations]: Found specification of procedure assume_abort_if_not
[2024-11-03 02:00:50,460 INFO  L138     BoogieDeclarations]: Found implementation of procedure assume_abort_if_not
[2024-11-03 02:00:50,460 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 02:00:50,462 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 02:00:50,531 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 02:00:50,535 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 02:00:52,331 INFO  L?                        ?]: Removed 12 outVars from TransFormulas that were not future-live.
[2024-11-03 02:00:52,331 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 02:00:52,345 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 02:00:52,345 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 02:00:52,345 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:00:52 BoogieIcfgContainer
[2024-11-03 02:00:52,346 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 02:00:52,347 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 02:00:52,347 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 02:00:52,349 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 02:00:52,349 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:00:50" (1/3) ...
[2024-11-03 02:00:52,350 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4105034c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:00:52, skipping insertion in model container
[2024-11-03 02:00:52,350 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:00:50" (2/3) ...
[2024-11-03 02:00:52,350 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4105034c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:00:52, skipping insertion in model container
[2024-11-03 02:00:52,350 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:00:52" (3/3) ...
[2024-11-03 02:00:52,351 INFO  L112   eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount50_file-99.i
[2024-11-03 02:00:52,364 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 02:00:52,364 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 02:00:52,408 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 02:00:52,414 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;@6d9ad44d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 02:00:52,414 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 02:00:52,418 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 77 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 46 states have internal predecessors, (59), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29)
[2024-11-03 02:00:52,429 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 181
[2024-11-03 02:00:52,429 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 02:00:52,430 INFO  L215           NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 02:00:52,430 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 02:00:52,434 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 02:00:52,434 INFO  L85        PathProgramCache]: Analyzing trace with hash 638589968, now seen corresponding path program 1 times
[2024-11-03 02:00:52,439 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 02:00:52,439 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [484199689]
[2024-11-03 02:00:52,440 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 02:00:52,441 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 02:00:52,441 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 02:00:52,442 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 02:00:52,443 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process
[2024-11-03 02:00:53,038 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 02:00:53,048 INFO  L255         TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 10 conjuncts are in the unsatisfiable core
[2024-11-03 02:00:53,060 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 02:00:54,075 INFO  L134       CoverageAnalysis]: Checked inductivity of 1624 backedges. 455 proven. 141 refuted. 0 times theorem prover too weak. 1028 trivial. 0 not checked.
[2024-11-03 02:00:54,076 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 02:00:54,765 INFO  L134       CoverageAnalysis]: Checked inductivity of 1624 backedges. 21 proven. 144 refuted. 0 times theorem prover too weak. 1459 trivial. 0 not checked.
[2024-11-03 02:00:54,766 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 02:00:54,766 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [484199689]
[2024-11-03 02:00:54,766 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [484199689] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 02:00:54,767 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 02:00:54,767 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13
[2024-11-03 02:00:54,769 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127157725]
[2024-11-03 02:00:54,769 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 02:00:54,774 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 13 states
[2024-11-03 02:00:54,775 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 02:00:54,795 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2024-11-03 02:00:54,796 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156
[2024-11-03 02:00:54,797 INFO  L87              Difference]: Start difference. First operand  has 77 states, 45 states have (on average 1.3111111111111111) internal successors, (59), 46 states have internal predecessors, (59), 29 states have call successors, (29), 1 states have call predecessors, (29), 1 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29) Second operand  has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 3 states have call successors, (54), 3 states have call predecessors, (54), 7 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55)
[2024-11-03 02:00:57,446 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 02:00:57,447 INFO  L93              Difference]: Finished difference Result 243 states and 427 transitions.
[2024-11-03 02:00:57,448 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. 
[2024-11-03 02:00:57,449 INFO  L78                 Accepts]: Start accepts. Automaton has  has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 3 states have call successors, (54), 3 states have call predecessors, (54), 7 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 180
[2024-11-03 02:00:57,450 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 02:00:57,456 INFO  L225             Difference]: With dead ends: 243
[2024-11-03 02:00:57,456 INFO  L226             Difference]: Without dead ends: 169
[2024-11-03 02:00:57,459 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 348 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=315, Invalid=741, Unknown=0, NotChecked=0, Total=1056
[2024-11-03 02:00:57,461 INFO  L432           NwaCegarLoop]: 119 mSDtfsCounter, 160 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time
[2024-11-03 02:00:57,462 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 420 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time]
[2024-11-03 02:00:57,475 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 169 states.
[2024-11-03 02:00:57,514 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 83.
[2024-11-03 02:00:57,516 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 83 states, 50 states have (on average 1.18) internal successors, (59), 50 states have internal predecessors, (59), 29 states have call successors, (29), 3 states have call predecessors, (29), 3 states have return successors, (29), 29 states have call predecessors, (29), 29 states have call successors, (29)
[2024-11-03 02:00:57,519 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions.
[2024-11-03 02:00:57,521 INFO  L78                 Accepts]: Start accepts. Automaton has 83 states and 117 transitions. Word has length 180
[2024-11-03 02:00:57,524 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 02:00:57,524 INFO  L471      AbstractCegarLoop]: Abstraction has 83 states and 117 transitions.
[2024-11-03 02:00:57,524 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 3 states have call successors, (54), 3 states have call predecessors, (54), 7 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55)
[2024-11-03 02:00:57,524 INFO  L276                IsEmpty]: Start isEmpty. Operand 83 states and 117 transitions.
[2024-11-03 02:00:57,528 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 181
[2024-11-03 02:00:57,529 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 02:00:57,529 INFO  L215           NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 02:00:57,538 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0
[2024-11-03 02:00:57,730 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 02:00:57,730 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 02:00:57,731 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 02:00:57,731 INFO  L85        PathProgramCache]: Analyzing trace with hash 1339654546, now seen corresponding path program 1 times
[2024-11-03 02:00:57,731 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 02:00:57,731 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [299769434]
[2024-11-03 02:00:57,732 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 02:00:57,732 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 02:00:57,732 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 02:00:57,734 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 02:00:57,735 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process
[2024-11-03 02:00:58,219 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 02:00:58,227 INFO  L255         TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 6 conjuncts are in the unsatisfiable core
[2024-11-03 02:00:58,231 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 02:01:02,236 INFO  L134       CoverageAnalysis]: Checked inductivity of 1624 backedges. 730 proven. 57 refuted. 0 times theorem prover too weak. 837 trivial. 0 not checked.
[2024-11-03 02:01:02,237 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 02:01:02,789 INFO  L134       CoverageAnalysis]: Checked inductivity of 1624 backedges. 27 proven. 57 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked.
[2024-11-03 02:01:02,789 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 02:01:02,789 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [299769434]
[2024-11-03 02:01:02,789 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [299769434] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-03 02:01:02,789 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-03 02:01:02,789 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10
[2024-11-03 02:01:02,790 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838442912]
[2024-11-03 02:01:02,790 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-03 02:01:02,791 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 10 states
[2024-11-03 02:01:02,793 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 02:01:02,794 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants.
[2024-11-03 02:01:02,794 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90
[2024-11-03 02:01:02,795 INFO  L87              Difference]: Start difference. First operand 83 states and 117 transitions. Second operand  has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 3 states have call successors, (48), 2 states have call predecessors, (48), 4 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49)
[2024-11-03 02:01:07,418 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-03 02:01:08,628 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]
[2024-11-03 02:01:09,284 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 02:01:09,284 INFO  L93              Difference]: Finished difference Result 217 states and 292 transitions.
[2024-11-03 02:01:09,285 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. 
[2024-11-03 02:01:09,285 INFO  L78                 Accepts]: Start accepts. Automaton has  has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 3 states have call successors, (48), 2 states have call predecessors, (48), 4 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49) Word has length 180
[2024-11-03 02:01:09,286 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 02:01:09,287 INFO  L225             Difference]: With dead ends: 217
[2024-11-03 02:01:09,287 INFO  L226             Difference]: Without dead ends: 137
[2024-11-03 02:01:09,288 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=93, Invalid=147, Unknown=0, NotChecked=0, Total=240
[2024-11-03 02:01:09,289 INFO  L432           NwaCegarLoop]: 88 mSDtfsCounter, 150 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time
[2024-11-03 02:01:09,291 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 223 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time]
[2024-11-03 02:01:09,293 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 137 states.
[2024-11-03 02:01:09,311 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 122.
[2024-11-03 02:01:09,311 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 122 states, 76 states have (on average 1.144736842105263) internal successors, (87), 77 states have internal predecessors, (87), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38)
[2024-11-03 02:01:09,312 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 163 transitions.
[2024-11-03 02:01:09,313 INFO  L78                 Accepts]: Start accepts. Automaton has 122 states and 163 transitions. Word has length 180
[2024-11-03 02:01:09,314 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 02:01:09,314 INFO  L471      AbstractCegarLoop]: Abstraction has 122 states and 163 transitions.
[2024-11-03 02:01:09,314 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 10 states, 10 states have (on average 6.6) internal successors, (66), 10 states have internal predecessors, (66), 3 states have call successors, (48), 2 states have call predecessors, (48), 4 states have return successors, (49), 3 states have call predecessors, (49), 3 states have call successors, (49)
[2024-11-03 02:01:09,314 INFO  L276                IsEmpty]: Start isEmpty. Operand 122 states and 163 transitions.
[2024-11-03 02:01:09,316 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 182
[2024-11-03 02:01:09,316 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 02:01:09,318 INFO  L215           NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 02:01:09,326 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0
[2024-11-03 02:01:09,518 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 02:01:09,518 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 02:01:09,519 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 02:01:09,519 INFO  L85        PathProgramCache]: Analyzing trace with hash -1574420026, now seen corresponding path program 1 times
[2024-11-03 02:01:09,519 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 02:01:09,519 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1262418533]
[2024-11-03 02:01:09,519 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 02:01:09,519 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 02:01:09,520 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 02:01:09,521 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 02:01:09,522 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process
[2024-11-03 02:01:09,996 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 02:01:10,004 INFO  L255         TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 3 conjuncts are in the unsatisfiable core
[2024-11-03 02:01:10,008 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 02:01:10,369 INFO  L134       CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked.
[2024-11-03 02:01:10,369 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 02:01:10,541 INFO  L134       CoverageAnalysis]: Checked inductivity of 1624 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1624 trivial. 0 not checked.
[2024-11-03 02:01:10,542 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 02:01:10,542 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1262418533]
[2024-11-03 02:01:10,542 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1262418533] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 02:01:10,542 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 02:01:10,542 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5
[2024-11-03 02:01:10,542 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559098112]
[2024-11-03 02:01:10,542 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 02:01:10,543 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2024-11-03 02:01:10,543 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 02:01:10,544 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2024-11-03 02:01:10,544 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2024-11-03 02:01:10,544 INFO  L87              Difference]: Start difference. First operand 122 states and 163 transitions. Second operand  has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58)
[2024-11-03 02:01:11,584 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 02:01:13,220 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 02:01:13,521 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 02:01:13,522 INFO  L93              Difference]: Finished difference Result 360 states and 483 transitions.
[2024-11-03 02:01:13,541 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. 
[2024-11-03 02:01:13,541 INFO  L78                 Accepts]: Start accepts. Automaton has  has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 181
[2024-11-03 02:01:13,542 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 02:01:13,548 INFO  L225             Difference]: With dead ends: 360
[2024-11-03 02:01:13,548 INFO  L226             Difference]: Without dead ends: 241
[2024-11-03 02:01:13,549 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 357 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2024-11-03 02:01:13,550 INFO  L432           NwaCegarLoop]: 103 mSDtfsCounter, 25 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time
[2024-11-03 02:01:13,550 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 401 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time]
[2024-11-03 02:01:13,551 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 241 states.
[2024-11-03 02:01:13,568 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 122.
[2024-11-03 02:01:13,569 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 122 states, 76 states have (on average 1.131578947368421) internal successors, (86), 77 states have internal predecessors, (86), 38 states have call successors, (38), 7 states have call predecessors, (38), 7 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38)
[2024-11-03 02:01:13,569 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 162 transitions.
[2024-11-03 02:01:13,570 INFO  L78                 Accepts]: Start accepts. Automaton has 122 states and 162 transitions. Word has length 181
[2024-11-03 02:01:13,570 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 02:01:13,570 INFO  L471      AbstractCegarLoop]: Abstraction has 122 states and 162 transitions.
[2024-11-03 02:01:13,570 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58)
[2024-11-03 02:01:13,571 INFO  L276                IsEmpty]: Start isEmpty. Operand 122 states and 162 transitions.
[2024-11-03 02:01:13,572 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 182
[2024-11-03 02:01:13,572 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 02:01:13,572 INFO  L215           NwaCegarLoop]: trace histogram [29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 02:01:13,579 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0
[2024-11-03 02:01:13,772 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt
[2024-11-03 02:01:13,774 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 02:01:13,774 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 02:01:13,774 INFO  L85        PathProgramCache]: Analyzing trace with hash 200587336, now seen corresponding path program 1 times
[2024-11-03 02:01:13,774 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 02:01:13,774 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1719223433]
[2024-11-03 02:01:13,774 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 02:01:13,775 INFO  L173          SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt
[2024-11-03 02:01:13,775 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4
[2024-11-03 02:01:13,779 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null)
[2024-11-03 02:01:13,780 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process
[2024-11-03 02:01:14,631 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 02:01:14,641 INFO  L255         TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 49 conjuncts are in the unsatisfiable core
[2024-11-03 02:01:14,647 INFO  L278         TraceCheckSpWp]: Computing forward predicates...