/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 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/floats-esbmc-regression/digits_while.c


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-02 22:58:38,110 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-02 22:58:38,148 INFO  L114        SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2024-11-02 22:58:38,152 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-02 22:58:38,152 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-02 22:58:38,166 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-02 22:58:38,166 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-02 22:58:38,166 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-02 22:58:38,167 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-02 22:58:38,167 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-02 22:58:38,167 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-02 22:58:38,168 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-02 22:58:38,168 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-02 22:58:38,168 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-02 22:58:38,168 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-02 22:58:38,169 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-02 22:58:38,169 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-02 22:58:38,169 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-02 22:58:38,169 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-02 22:58:38,169 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-02 22:58:38,170 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-02 22:58:38,170 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-02 22:58:38,170 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-02 22:58:38,170 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-02 22:58:38,171 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-02 22:58:38,171 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-02 22:58:38,171 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-02 22:58:38,171 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-02 22:58:38,171 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-02 22:58:38,172 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-02 22:58:38,172 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-02 22:58:38,172 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-02 22:58:38,172 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-02 22:58:38,173 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-02 22:58:38,173 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 22:58:38,173 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-02 22:58:38,173 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-02 22:58:38,173 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-02 22:58:38,174 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-02 22:58:38,174 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-02 22:58:38,174 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-02 22:58:38,174 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-02 22:58:38,174 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-02 22:58:38,175 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-02 22:58:38,175 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:58:38,340 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-02 22:58:38,357 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-02 22:58:38,360 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-02 22:58:38,361 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-02 22:58:38,361 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-02 22:58:38,362 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-esbmc-regression/digits_while.c
[2024-11-02 22:58:39,557 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-02 22:58:39,743 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-02 22:58:39,743 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/digits_while.c
[2024-11-02 22:58:39,749 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dc39de9e/bba24af6cba149fb90459f843821646a/FLAG49bc91274
[2024-11-02 22:58:40,176 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dc39de9e/bba24af6cba149fb90459f843821646a
[2024-11-02 22:58:40,178 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-02 22:58:40,180 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-02 22:58:40,181 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-02 22:58:40,181 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-02 22:58:40,190 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-02 22:58:40,191 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:58:40" (1/1) ...
[2024-11-02 22:58:40,191 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46bf2809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:40, skipping insertion in model container
[2024-11-02 22:58:40,191 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 10:58:40" (1/1) ...
[2024-11-02 22:58:40,208 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-02 22:58:40,340 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/digits_while.c[317,330]
[2024-11-02 22:58:40,355 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 22:58:40,370 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-02 22:58:40,379 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/floats-esbmc-regression/digits_while.c[317,330]
[2024-11-02 22:58:40,381 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-02 22:58:40,393 INFO  L204         MainTranslator]: Completed translation
[2024-11-02 22:58:40,393 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:40 WrapperNode
[2024-11-02 22:58:40,394 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-02 22:58:40,394 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-02 22:58:40,394 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-02 22:58:40,395 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-02 22:58:40,399 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:40" (1/1) ...
[2024-11-02 22:58:40,406 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:40" (1/1) ...
[2024-11-02 22:58:40,418 INFO  L138                Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 31
[2024-11-02 22:58:40,418 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-02 22:58:40,419 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-02 22:58:40,419 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-02 22:58:40,419 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-02 22:58:40,426 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:40" (1/1) ...
[2024-11-02 22:58:40,426 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:40" (1/1) ...
[2024-11-02 22:58:40,430 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:40" (1/1) ...
[2024-11-02 22:58:40,442 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].
[2024-11-02 22:58:40,442 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:40" (1/1) ...
[2024-11-02 22:58:40,443 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:40" (1/1) ...
[2024-11-02 22:58:40,447 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:40" (1/1) ...
[2024-11-02 22:58:40,449 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:40" (1/1) ...
[2024-11-02 22:58:40,450 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:40" (1/1) ...
[2024-11-02 22:58:40,451 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:40" (1/1) ...
[2024-11-02 22:58:40,453 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-02 22:58:40,453 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-02 22:58:40,454 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-02 22:58:40,454 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-02 22:58:40,455 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:40" (1/1) ...
[2024-11-02 22:58:40,460 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-02 22:58:40,469 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:58:40,486 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)
[2024-11-02 22:58:40,490 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
[2024-11-02 22:58:40,513 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-02 22:58:40,514 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-02 22:58:40,514 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-02 22:58:40,514 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-02 22:58:40,570 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-02 22:58:40,572 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-02 22:58:44,780 INFO  L?                        ?]: Removed 7 outVars from TransFormulas that were not future-live.
[2024-11-02 22:58:44,781 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-02 22:58:44,793 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-02 22:58:44,793 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-02 22:58:44,793 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:58:44 BoogieIcfgContainer
[2024-11-02 22:58:44,793 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-02 22:58:44,797 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-02 22:58:44,797 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-02 22:58:44,804 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-02 22:58:44,804 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 10:58:40" (1/3) ...
[2024-11-02 22:58:44,805 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526eff0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:58:44, skipping insertion in model container
[2024-11-02 22:58:44,805 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 10:58:40" (2/3) ...
[2024-11-02 22:58:44,805 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526eff0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 10:58:44, skipping insertion in model container
[2024-11-02 22:58:44,805 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 10:58:44" (3/3) ...
[2024-11-02 22:58:44,806 INFO  L112   eAbstractionObserver]: Analyzing ICFG digits_while.c
[2024-11-02 22:58:44,832 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-02 22:58:44,832 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-02 22:58:44,876 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-02 22:58:44,881 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;@3812a2e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-02 22:58:44,881 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-02 22:58:44,884 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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)
[2024-11-02 22:58:44,888 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 7
[2024-11-02 22:58:44,889 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:58:44,889 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1]
[2024-11-02 22:58:44,890 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:58:44,893 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:58:44,893 INFO  L85        PathProgramCache]: Analyzing trace with hash 889633835, now seen corresponding path program 1 times
[2024-11-02 22:58:44,899 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:58:44,900 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [521532554]
[2024-11-02 22:58:44,900 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:58:44,901 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:58:44,902 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:58:44,904 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 22:58:44,905 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2024-11-02 22:58:44,959 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:58:44,961 INFO  L255         TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-02 22:58:44,964 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:58:45,069 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-02 22:58:45,069 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:58:45,142 INFO  L134       CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-02 22:58:45,143 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:58:45,144 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [521532554]
[2024-11-02 22:58:45,144 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [521532554] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-02 22:58:45,144 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-02 22:58:45,144 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2024-11-02 22:58:45,146 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792326272]
[2024-11-02 22:58:45,146 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-02 22:58:45,149 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2024-11-02 22:58:45,149 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:58:45,168 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2024-11-02 22:58:45,168 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-02 22:58:45,170 INFO  L87              Difference]: Start difference. First operand  has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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)
[2024-11-02 22:58:49,345 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 22:58:50,887 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 22:58:54,897 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 22:58:59,078 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 22:58:59,140 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:58:59,140 INFO  L93              Difference]: Finished difference Result 20 states and 24 transitions.
[2024-11-02 22:58:59,141 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-02 22:58:59,142 INFO  L78                 Accepts]: Start accepts. Automaton has  has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 6
[2024-11-02 22:58:59,143 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:58:59,147 INFO  L225             Difference]: With dead ends: 20
[2024-11-02 22:58:59,147 INFO  L226             Difference]: Without dead ends: 8
[2024-11-02 22:58:59,148 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2024-11-02 22:58:59,151 INFO  L432           NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time
[2024-11-02 22:58:59,153 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 3 Unknown, 0 Unchecked, 14.0s Time]
[2024-11-02 22:58:59,168 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 8 states.
[2024-11-02 22:58:59,178 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8.
[2024-11-02 22:58:59,182 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 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)
[2024-11-02 22:58:59,182 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions.
[2024-11-02 22:58:59,183 INFO  L78                 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6
[2024-11-02 22:58:59,183 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:58:59,184 INFO  L471      AbstractCegarLoop]: Abstraction has 8 states and 8 transitions.
[2024-11-02 22:58:59,184 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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)
[2024-11-02 22:58:59,184 INFO  L276                IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions.
[2024-11-02 22:58:59,184 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 8
[2024-11-02 22:58:59,184 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:58:59,185 INFO  L215           NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1]
[2024-11-02 22:58:59,201 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0
[2024-11-02 22:58:59,388 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:58:59,389 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:58:59,389 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:58:59,389 INFO  L85        PathProgramCache]: Analyzing trace with hash 1810510480, now seen corresponding path program 1 times
[2024-11-02 22:58:59,389 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:58:59,390 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1421532677]
[2024-11-02 22:58:59,390 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:58:59,390 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:58:59,390 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:58:59,395 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 22:58:59,397 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2024-11-02 22:59:00,387 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 22:59:00,427 INFO  L255         TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 4 conjuncts are in the unsatisfiable core
[2024-11-02 22:59:00,428 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-02 22:59:01,811 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2024-11-02 22:59:01,811 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-02 22:59:09,203 WARN  L286               SmtUtils]: Spent 7.32s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)
[2024-11-02 22:59:13,241 WARN  L851   $PredicateComparison]: unable to prove that (not (fp.eq (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| ((_ to_fp 15 113) c_currentRoundingMode (_ bv10 32))) ((_ to_fp 15 113) c_currentRoundingMode (bvmul (_ bv10 32) ((_ fp.to_sbv 32) roundTowardZero |c_ULTIMATE.start_main_~x~0#1|)))) ((_ to_fp 15 113) c_currentRoundingMode (_ bv0 32)))) is different from false
[2024-11-02 22:59:17,278 WARN  L873   $PredicateComparison]: unable to prove that (not (fp.eq (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| ((_ to_fp 15 113) c_currentRoundingMode (_ bv10 32))) ((_ to_fp 15 113) c_currentRoundingMode (bvmul (_ bv10 32) ((_ fp.to_sbv 32) roundTowardZero |c_ULTIMATE.start_main_~x~0#1|)))) ((_ to_fp 15 113) c_currentRoundingMode (_ bv0 32)))) is different from true
[2024-11-02 22:59:17,420 INFO  L134       CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked.
[2024-11-02 22:59:17,421 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-02 22:59:17,421 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1421532677]
[2024-11-02 22:59:17,421 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1421532677] provided 0 perfect and 2 imperfect interpolant sequences
[2024-11-02 22:59:17,421 INFO  L185   FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences.
[2024-11-02 22:59:17,421 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7
[2024-11-02 22:59:17,421 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395438611]
[2024-11-02 22:59:17,421 INFO  L85    oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton
[2024-11-02 22:59:17,423 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2024-11-02 22:59:17,423 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-02 22:59:17,423 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2024-11-02 22:59:17,424 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=17, Unknown=2, NotChecked=8, Total=42
[2024-11-02 22:59:17,424 INFO  L87              Difference]: Start difference. First operand 8 states and 8 transitions. Second operand  has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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)
[2024-11-02 22:59:22,547 WARN  L873   $PredicateComparison]: unable to prove that (and (not (fp.eq (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~x~0#1| ((_ to_fp 15 113) c_currentRoundingMode (_ bv10 32))) ((_ to_fp 15 113) c_currentRoundingMode (bvmul (_ bv10 32) ((_ fp.to_sbv 32) roundTowardZero |c_ULTIMATE.start_main_~x~0#1|)))) ((_ to_fp 15 113) c_currentRoundingMode (_ bv0 32)))) (= ((_ to_fp 15 113) c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) ((_ to_fp 11 53) c_currentRoundingMode 7.0))) |c_ULTIMATE.start_main_~x~0#1|) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true
[2024-11-02 22:59:25,010 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.46s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 22:59:29,135 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result VALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 22:59:34,270 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 22:59:38,472 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-02 22:59:38,473 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-02 22:59:38,473 INFO  L93              Difference]: Finished difference Result 14 states and 15 transitions.
[2024-11-02 22:59:38,525 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. 
[2024-11-02 22:59:38,525 INFO  L78                 Accepts]: Start accepts. Automaton has  has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 7
[2024-11-02 22:59:38,526 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-02 22:59:38,527 INFO  L225             Difference]: With dead ends: 14
[2024-11-02 22:59:38,527 INFO  L226             Difference]: Without dead ends: 10
[2024-11-02 22:59:38,528 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=23, Invalid=24, Unknown=3, NotChecked=22, Total=72
[2024-11-02 22:59:38,528 INFO  L432           NwaCegarLoop]: 4 mSDtfsCounter, 7 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time
[2024-11-02 22:59:38,529 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 10 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 2 Unknown, 12 Unchecked, 16.8s Time]
[2024-11-02 22:59:38,529 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 10 states.
[2024-11-02 22:59:38,533 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10.
[2024-11-02 22:59:38,534 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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)
[2024-11-02 22:59:38,535 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions.
[2024-11-02 22:59:38,535 INFO  L78                 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7
[2024-11-02 22:59:38,535 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-02 22:59:38,535 INFO  L471      AbstractCegarLoop]: Abstraction has 10 states and 10 transitions.
[2024-11-02 22:59:38,535 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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)
[2024-11-02 22:59:38,535 INFO  L276                IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions.
[2024-11-02 22:59:38,535 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 10
[2024-11-02 22:59:38,536 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-02 22:59:38,536 INFO  L215           NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1]
[2024-11-02 22:59:38,572 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2024-11-02 22:59:38,739 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:59:38,740 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-02 22:59:38,740 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-02 22:59:38,740 INFO  L85        PathProgramCache]: Analyzing trace with hash 492108272, now seen corresponding path program 2 times
[2024-11-02 22:59:38,740 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-02 22:59:38,741 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1892498259]
[2024-11-02 22:59:38,741 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-02 22:59:38,741 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2024-11-02 22:59:38,741 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-02 22:59:38,745 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2024-11-02 22:59:38,747 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2024-11-02 23:00:23,354 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-02 23:00:23,514 INFO  L255         TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 9 conjuncts are in the unsatisfiable core
[2024-11-02 23:00:23,516 INFO  L278         TraceCheckSpWp]: Computing forward predicates...