/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 bitwuzla -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-benchs/bary_diverge.c


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


This is Ultimate 0.2.5-dev-b75d321-m
[2024-11-03 13:44:19,927 INFO  L188        SettingsManager]: Resetting all preferences to default values...
[2024-11-03 13:44:20,003 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 13:44:20,009 WARN  L101        SettingsManager]: Preference file contains the following unknown settings:
[2024-11-03 13:44:20,010 WARN  L103        SettingsManager]:   * de.uni_freiburg.informatik.ultimate.core.Log level for class
[2024-11-03 13:44:20,034 INFO  L130        SettingsManager]: Preferences different from defaults after loading the file:
[2024-11-03 13:44:20,035 INFO  L151        SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2024-11-03 13:44:20,035 INFO  L153        SettingsManager]:  * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2024-11-03 13:44:20,036 INFO  L151        SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults:
[2024-11-03 13:44:20,036 INFO  L153        SettingsManager]:  * Use memory slicer=true
[2024-11-03 13:44:20,037 INFO  L151        SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2024-11-03 13:44:20,037 INFO  L153        SettingsManager]:  * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2024-11-03 13:44:20,038 INFO  L151        SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2024-11-03 13:44:20,039 INFO  L153        SettingsManager]:  * Create parallel compositions if possible=false
[2024-11-03 13:44:20,039 INFO  L153        SettingsManager]:  * Use SBE=true
[2024-11-03 13:44:20,039 INFO  L151        SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2024-11-03 13:44:20,039 INFO  L153        SettingsManager]:  * Pointer base address is valid at dereference=IGNORE
[2024-11-03 13:44:20,040 INFO  L153        SettingsManager]:  * sizeof long=4
[2024-11-03 13:44:20,040 INFO  L153        SettingsManager]:  * sizeof POINTER=4
[2024-11-03 13:44:20,040 INFO  L153        SettingsManager]:  * Check division by zero=IGNORE
[2024-11-03 13:44:20,040 INFO  L153        SettingsManager]:  * Pointer to allocated memory at dereference=IGNORE
[2024-11-03 13:44:20,044 INFO  L153        SettingsManager]:  * If two pointers are subtracted or compared they have the same base address=IGNORE
[2024-11-03 13:44:20,044 INFO  L153        SettingsManager]:  * Check array bounds for arrays that are off heap=IGNORE
[2024-11-03 13:44:20,044 INFO  L153        SettingsManager]:  * Adapt memory model on pointer casts if necessary=true
[2024-11-03 13:44:20,044 INFO  L153        SettingsManager]:  * Use bitvectors instead of ints=true
[2024-11-03 13:44:20,045 INFO  L153        SettingsManager]:  * Allow undefined functions=false
[2024-11-03 13:44:20,045 INFO  L153        SettingsManager]:  * Memory model=HoenickeLindenmann_4ByteResolution
[2024-11-03 13:44:20,045 INFO  L153        SettingsManager]:  * sizeof long double=12
[2024-11-03 13:44:20,045 INFO  L153        SettingsManager]:  * Check if freed pointer was valid=false
[2024-11-03 13:44:20,045 INFO  L153        SettingsManager]:  * Use constant arrays=true
[2024-11-03 13:44:20,046 INFO  L151        SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2024-11-03 13:44:20,046 INFO  L153        SettingsManager]:  * Size of a code block=SequenceOfStatements
[2024-11-03 13:44:20,046 INFO  L153        SettingsManager]:  * Only consider context switches at boundaries of atomic blocks=true
[2024-11-03 13:44:20,046 INFO  L153        SettingsManager]:  * SMT solver=External_DefaultMode
[2024-11-03 13:44:20,046 INFO  L153        SettingsManager]:  * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 13:44:20,047 INFO  L151        SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2024-11-03 13:44:20,047 INFO  L153        SettingsManager]:  * Compute Interpolants along a Counterexample=FPandBP
[2024-11-03 13:44:20,047 INFO  L153        SettingsManager]:  * Positions where we compute the Hoare Annotation=LoopHeads
[2024-11-03 13:44:20,047 INFO  L153        SettingsManager]:  * Trace refinement strategy=WOLF
[2024-11-03 13:44:20,047 INFO  L153        SettingsManager]:  * Command for external solver=cvc4 --incremental --print-success --lang smt
[2024-11-03 13:44:20,047 INFO  L153        SettingsManager]:  * Apply one-shot large block encoding in concurrent analysis=false
[2024-11-03 13:44:20,049 INFO  L153        SettingsManager]:  * Automaton type used in concurrency analysis=PETRI_NET
[2024-11-03 13:44:20,049 INFO  L153        SettingsManager]:  * Order on configurations for Petri net unfoldings=DBO
[2024-11-03 13:44:20,049 INFO  L153        SettingsManager]:  * SMT solver=External_ModelsAndUnsatCoreMode
[2024-11-03 13:44:20,049 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla
[2024-11-03 13:44:20,300 INFO  L75    nceAwareModelManager]: Repository-Root is: /tmp
[2024-11-03 13:44:20,326 INFO  L261   ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2024-11-03 13:44:20,329 INFO  L217   ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2024-11-03 13:44:20,330 INFO  L270        PluginConnector]: Initializing CDTParser...
[2024-11-03 13:44:20,331 INFO  L274        PluginConnector]: CDTParser initialized
[2024-11-03 13:44:20,332 INFO  L431   ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/bary_diverge.c
[2024-11-03 13:44:21,680 INFO  L533              CDTParser]: Created temporary CDT project at NULL
[2024-11-03 13:44:21,862 INFO  L384              CDTParser]: Found 1 translation units.
[2024-11-03 13:44:21,862 INFO  L180              CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/bary_diverge.c
[2024-11-03 13:44:21,869 INFO  L427              CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eae230d0c/f25f1ad6f5cb4ba4b81d232959cfc42a/FLAG12894df2f
[2024-11-03 13:44:21,883 INFO  L435              CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eae230d0c/f25f1ad6f5cb4ba4b81d232959cfc42a
[2024-11-03 13:44:21,885 INFO  L299   ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2024-11-03 13:44:21,887 INFO  L133        ToolchainWalker]: Walking toolchain with 5 elements.
[2024-11-03 13:44:21,889 INFO  L112        PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2024-11-03 13:44:21,889 INFO  L270        PluginConnector]: Initializing CACSL2BoogieTranslator...
[2024-11-03 13:44:21,894 INFO  L274        PluginConnector]: CACSL2BoogieTranslator initialized
[2024-11-03 13:44:21,895 INFO  L184        PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:44:21" (1/1) ...
[2024-11-03 13:44:21,896 INFO  L204        PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26c4f8d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:21, skipping insertion in model container
[2024-11-03 13:44:21,896 INFO  L184        PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:44:21" (1/1) ...
[2024-11-03 13:44:21,916 INFO  L175         MainTranslator]: Built tables and reachable declarations
[2024-11-03 13:44:22,081 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/bary_diverge.c[632,645]
[2024-11-03 13:44:22,108 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 13:44:22,123 INFO  L200         MainTranslator]: Completed pre-run
[2024-11-03 13:44:22,134 WARN  L250   ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/bary_diverge.c[632,645]
[2024-11-03 13:44:22,140 INFO  L210          PostProcessor]: Analyzing one entry point: main
[2024-11-03 13:44:22,159 INFO  L204         MainTranslator]: Completed translation
[2024-11-03 13:44:22,160 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:22 WrapperNode
[2024-11-03 13:44:22,160 INFO  L131        PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2024-11-03 13:44:22,161 INFO  L112        PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2024-11-03 13:44:22,161 INFO  L270        PluginConnector]: Initializing Boogie Procedure Inliner...
[2024-11-03 13:44:22,161 INFO  L274        PluginConnector]: Boogie Procedure Inliner initialized
[2024-11-03 13:44:22,168 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:22" (1/1) ...
[2024-11-03 13:44:22,178 INFO  L184        PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:22" (1/1) ...
[2024-11-03 13:44:22,196 INFO  L138                Inliner]: procedures = 18, calls = 16, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 70
[2024-11-03 13:44:22,196 INFO  L131        PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2024-11-03 13:44:22,197 INFO  L112        PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2024-11-03 13:44:22,197 INFO  L270        PluginConnector]: Initializing Boogie Preprocessor...
[2024-11-03 13:44:22,197 INFO  L274        PluginConnector]: Boogie Preprocessor initialized
[2024-11-03 13:44:22,205 INFO  L184        PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:22" (1/1) ...
[2024-11-03 13:44:22,206 INFO  L184        PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:22" (1/1) ...
[2024-11-03 13:44:22,209 INFO  L184        PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:22" (1/1) ...
[2024-11-03 13:44:22,218 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 13:44:22,218 INFO  L184        PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:22" (1/1) ...
[2024-11-03 13:44:22,218 INFO  L184        PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:22" (1/1) ...
[2024-11-03 13:44:22,225 INFO  L184        PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:22" (1/1) ...
[2024-11-03 13:44:22,228 INFO  L184        PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:22" (1/1) ...
[2024-11-03 13:44:22,229 INFO  L184        PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:22" (1/1) ...
[2024-11-03 13:44:22,230 INFO  L184        PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:22" (1/1) ...
[2024-11-03 13:44:22,232 INFO  L131        PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2024-11-03 13:44:22,233 INFO  L112        PluginConnector]: ------------------------RCFGBuilder----------------------------
[2024-11-03 13:44:22,233 INFO  L270        PluginConnector]: Initializing RCFGBuilder...
[2024-11-03 13:44:22,233 INFO  L274        PluginConnector]: RCFGBuilder initialized
[2024-11-03 13:44:22,235 INFO  L184        PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:22" (1/1) ...
[2024-11-03 13:44:22,239 INFO  L173          SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000
[2024-11-03 13:44:22,251 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2024-11-03 13:44:22,264 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 13:44:22,266 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 13:44:22,286 INFO  L130     BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit
[2024-11-03 13:44:22,286 INFO  L130     BoogieDeclarations]: Found specification of procedure RANDOM_INPUT
[2024-11-03 13:44:22,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure RANDOM_INPUT
[2024-11-03 13:44:22,286 INFO  L130     BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0
[2024-11-03 13:44:22,286 INFO  L130     BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2024-11-03 13:44:22,286 INFO  L138     BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2024-11-03 13:44:22,362 INFO  L238             CfgBuilder]: Building ICFG
[2024-11-03 13:44:22,364 INFO  L264             CfgBuilder]: Building CFG for each procedure with an implementation
[2024-11-03 13:44:26,622 INFO  L?                        ?]: Removed 9 outVars from TransFormulas that were not future-live.
[2024-11-03 13:44:26,622 INFO  L287             CfgBuilder]: Performing block encoding
[2024-11-03 13:44:26,633 INFO  L311             CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2024-11-03 13:44:26,634 INFO  L316             CfgBuilder]: Removed 1 assume(true) statements.
[2024-11-03 13:44:26,634 INFO  L201        PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:44:26 BoogieIcfgContainer
[2024-11-03 13:44:26,634 INFO  L131        PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2024-11-03 13:44:26,636 INFO  L112        PluginConnector]: ------------------------TraceAbstraction----------------------------
[2024-11-03 13:44:26,637 INFO  L270        PluginConnector]: Initializing TraceAbstraction...
[2024-11-03 13:44:26,640 INFO  L274        PluginConnector]: TraceAbstraction initialized
[2024-11-03 13:44:26,640 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:44:21" (1/3) ...
[2024-11-03 13:44:26,641 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17943290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:44:26, skipping insertion in model container
[2024-11-03 13:44:26,641 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:44:22" (2/3) ...
[2024-11-03 13:44:26,642 INFO  L204        PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17943290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:44:26, skipping insertion in model container
[2024-11-03 13:44:26,642 INFO  L184        PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:44:26" (3/3) ...
[2024-11-03 13:44:26,643 INFO  L112   eAbstractionObserver]: Analyzing ICFG bary_diverge.c
[2024-11-03 13:44:26,660 INFO  L214   ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2024-11-03 13:44:26,660 INFO  L154   ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2024-11-03 13:44:26,729 INFO  L332      AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2024-11-03 13:44:26,739 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;@1d811289, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms]
[2024-11-03 13:44:26,740 INFO  L334      AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2024-11-03 13:44:26,745 INFO  L276                IsEmpty]: Start isEmpty. Operand  has 32 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2024-11-03 13:44:26,753 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2024-11-03 13:44:26,753 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:44:26,754 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 13:44:26,754 INFO  L396      AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:44:26,761 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:44:26,762 INFO  L85        PathProgramCache]: Analyzing trace with hash 372835822, now seen corresponding path program 1 times
[2024-11-03 13:44:26,769 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:44:26,770 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [160919510]
[2024-11-03 13:44:26,770 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:44:26,772 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:44:26,773 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:44:26,776 INFO  L229       MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 13:44:26,777 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process
[2024-11-03 13:44:26,864 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:44:26,868 INFO  L255         TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjuncts are in the unsatisfiable core
[2024-11-03 13:44:26,873 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:44:26,898 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-03 13:44:26,898 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:44:26,933 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2024-11-03 13:44:26,934 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:44:26,935 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [160919510]
[2024-11-03 13:44:26,937 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [160919510] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 13:44:26,937 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 13:44:26,938 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2024-11-03 13:44:26,939 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837667708]
[2024-11-03 13:44:26,940 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 13:44:26,943 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2024-11-03 13:44:26,943 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:44:26,960 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2024-11-03 13:44:26,961 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 13:44:26,963 INFO  L87              Difference]: Start difference. First operand  has 32 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 25 states have internal predecessors, (31), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand  has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-03 13:44:26,980 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:44:26,980 INFO  L93              Difference]: Finished difference Result 61 states and 83 transitions.
[2024-11-03 13:44:26,982 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. 
[2024-11-03 13:44:26,983 INFO  L78                 Accepts]: Start accepts. Automaton has  has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22
[2024-11-03 13:44:26,984 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:44:26,991 INFO  L225             Difference]: With dead ends: 61
[2024-11-03 13:44:26,991 INFO  L226             Difference]: Without dead ends: 28
[2024-11-03 13:44:26,995 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2024-11-03 13:44:26,998 INFO  L432           NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time
[2024-11-03 13:44:26,999 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time]
[2024-11-03 13:44:27,013 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 28 states.
[2024-11-03 13:44:27,031 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28.
[2024-11-03 13:44:27,032 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 28 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5)
[2024-11-03 13:44:27,034 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions.
[2024-11-03 13:44:27,036 INFO  L78                 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 22
[2024-11-03 13:44:27,036 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:44:27,036 INFO  L471      AbstractCegarLoop]: Abstraction has 28 states and 34 transitions.
[2024-11-03 13:44:27,036 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2024-11-03 13:44:27,037 INFO  L276                IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions.
[2024-11-03 13:44:27,038 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2024-11-03 13:44:27,038 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:44:27,038 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 13:44:27,040 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Ended with exit code 0
[2024-11-03 13:44:27,239 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:44:27,240 INFO  L396      AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:44:27,241 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:44:27,241 INFO  L85        PathProgramCache]: Analyzing trace with hash -920244306, now seen corresponding path program 1 times
[2024-11-03 13:44:27,241 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:44:27,241 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [619648812]
[2024-11-03 13:44:27,241 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:44:27,242 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:44:27,242 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:44:27,244 INFO  L229       MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 13:44:27,245 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process
[2024-11-03 13:44:27,290 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:44:27,294 INFO  L255         TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-03 13:44:27,300 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:44:28,253 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-03 13:44:28,254 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:44:29,023 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2024-11-03 13:44:29,024 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:44:29,024 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [619648812]
[2024-11-03 13:44:29,024 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [619648812] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 13:44:29,024 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 13:44:29,025 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 17
[2024-11-03 13:44:29,025 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367426877]
[2024-11-03 13:44:29,025 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 13:44:29,026 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 17 states
[2024-11-03 13:44:29,026 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:44:29,027 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants.
[2024-11-03 13:44:29,028 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272
[2024-11-03 13:44:29,028 INFO  L87              Difference]: Start difference. First operand 28 states and 34 transitions. Second operand  has 17 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 15 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4)
[2024-11-03 13:44:33,877 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.90s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 13:44:37,998 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.91s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 13:44:42,190 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 13:44:46,194 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 13:44:46,233 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:44:46,235 INFO  L93              Difference]: Finished difference Result 70 states and 84 transitions.
[2024-11-03 13:44:46,236 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. 
[2024-11-03 13:44:46,236 INFO  L78                 Accepts]: Start accepts. Automaton has  has 17 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 15 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 22
[2024-11-03 13:44:46,237 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:44:46,238 INFO  L225             Difference]: With dead ends: 70
[2024-11-03 13:44:46,238 INFO  L226             Difference]: Without dead ends: 68
[2024-11-03 13:44:46,239 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=129, Invalid=521, Unknown=0, NotChecked=0, Total=650
[2024-11-03 13:44:46,240 INFO  L432           NwaCegarLoop]: 35 mSDtfsCounter, 117 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 40 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time
[2024-11-03 13:44:46,241 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 260 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 231 Invalid, 2 Unknown, 0 Unchecked, 16.2s Time]
[2024-11-03 13:44:46,242 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 68 states.
[2024-11-03 13:44:46,253 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 45.
[2024-11-03 13:44:46,254 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 45 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 35 states have internal predecessors, (39), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8)
[2024-11-03 13:44:46,255 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions.
[2024-11-03 13:44:46,255 INFO  L78                 Accepts]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 22
[2024-11-03 13:44:46,256 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:44:46,256 INFO  L471      AbstractCegarLoop]: Abstraction has 45 states and 55 transitions.
[2024-11-03 13:44:46,258 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 17 states, 17 states have (on average 2.0588235294117645) internal successors, (35), 15 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4)
[2024-11-03 13:44:46,258 INFO  L276                IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions.
[2024-11-03 13:44:46,258 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 23
[2024-11-03 13:44:46,258 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:44:46,259 INFO  L215           NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 13:44:46,261 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Ended with exit code 0
[2024-11-03 13:44:46,459 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:44:46,460 INFO  L396      AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:44:46,460 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:44:46,460 INFO  L85        PathProgramCache]: Analyzing trace with hash -920184724, now seen corresponding path program 1 times
[2024-11-03 13:44:46,460 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:44:46,461 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1931455311]
[2024-11-03 13:44:46,461 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:44:46,461 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:44:46,461 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:44:46,463 INFO  L229       MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 13:44:46,464 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Waiting until timeout for monitored process
[2024-11-03 13:44:46,491 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:44:46,492 INFO  L255         TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjuncts are in the unsatisfiable core
[2024-11-03 13:44:46,494 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:44:46,639 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-03 13:44:46,639 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:44:46,697 INFO  L134       CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked.
[2024-11-03 13:44:46,697 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:44:46,697 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1931455311]
[2024-11-03 13:44:46,698 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1931455311] provided 2 perfect and 0 imperfect interpolant sequences
[2024-11-03 13:44:46,698 INFO  L185   FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2024-11-03 13:44:46,698 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3
[2024-11-03 13:44:46,698 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184345156]
[2024-11-03 13:44:46,698 INFO  L85    oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2024-11-03 13:44:46,698 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2024-11-03 13:44:46,698 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:44:46,699 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2024-11-03 13:44:46,699 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 13:44:46,699 INFO  L87              Difference]: Start difference. First operand 45 states and 55 transitions. Second operand  has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2024-11-03 13:44:50,822 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 13:44:50,826 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:44:50,826 INFO  L93              Difference]: Finished difference Result 85 states and 98 transitions.
[2024-11-03 13:44:50,852 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. 
[2024-11-03 13:44:50,852 INFO  L78                 Accepts]: Start accepts. Automaton has  has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 22
[2024-11-03 13:44:50,852 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:44:50,854 INFO  L225             Difference]: With dead ends: 85
[2024-11-03 13:44:50,854 INFO  L226             Difference]: Without dead ends: 63
[2024-11-03 13:44:50,855 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2024-11-03 13:44:50,856 INFO  L432           NwaCegarLoop]: 33 mSDtfsCounter, 10 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time
[2024-11-03 13:44:50,856 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 56 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time]
[2024-11-03 13:44:50,857 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 63 states.
[2024-11-03 13:44:50,866 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 60.
[2024-11-03 13:44:50,866 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 60 states, 46 states have (on average 1.108695652173913) internal successors, (51), 48 states have internal predecessors, (51), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9)
[2024-11-03 13:44:50,867 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 69 transitions.
[2024-11-03 13:44:50,867 INFO  L78                 Accepts]: Start accepts. Automaton has 60 states and 69 transitions. Word has length 22
[2024-11-03 13:44:50,867 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:44:50,868 INFO  L471      AbstractCegarLoop]: Abstraction has 60 states and 69 transitions.
[2024-11-03 13:44:50,868 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2024-11-03 13:44:50,868 INFO  L276                IsEmpty]: Start isEmpty. Operand 60 states and 69 transitions.
[2024-11-03 13:44:50,869 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2024-11-03 13:44:50,869 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:44:50,869 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 13:44:50,871 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (4)] Ended with exit code 0
[2024-11-03 13:44:51,070 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:44:51,071 INFO  L396      AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:44:51,071 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:44:51,072 INFO  L85        PathProgramCache]: Analyzing trace with hash -961441789, now seen corresponding path program 1 times
[2024-11-03 13:44:51,072 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:44:51,072 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874108287]
[2024-11-03 13:44:51,072 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:44:51,072 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:44:51,072 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:44:51,074 INFO  L229       MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 13:44:51,075 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Waiting until timeout for monitored process
[2024-11-03 13:44:51,127 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:44:51,128 INFO  L255         TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 12 conjuncts are in the unsatisfiable core
[2024-11-03 13:44:51,132 INFO  L278         TraceCheckSpWp]: Computing forward predicates...
[2024-11-03 13:44:52,370 INFO  L134       CoverageAnalysis]: Checked inductivity of 55 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked.
[2024-11-03 13:44:52,371 INFO  L311         TraceCheckSpWp]: Computing backward predicates...
[2024-11-03 13:44:53,355 INFO  L134       CoverageAnalysis]: Checked inductivity of 55 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked.
[2024-11-03 13:44:53,355 INFO  L136   FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace
[2024-11-03 13:44:53,356 INFO  L334   FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1874108287]
[2024-11-03 13:44:53,356 INFO  L158   FreeRefinementEngine]: IpTcStrategyModulePreferences [1874108287] provided 1 perfect and 1 imperfect interpolant sequences
[2024-11-03 13:44:53,356 INFO  L185   FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2024-11-03 13:44:53,356 INFO  L198   FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 17
[2024-11-03 13:44:53,356 INFO  L121   tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467095796]
[2024-11-03 13:44:53,356 INFO  L85    oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2024-11-03 13:44:53,357 INFO  L548      AbstractCegarLoop]: INTERPOLANT automaton has 9 states
[2024-11-03 13:44:53,357 INFO  L100   FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES
[2024-11-03 13:44:53,357 INFO  L143   InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2024-11-03 13:44:53,357 INFO  L145   InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272
[2024-11-03 13:44:53,358 INFO  L87              Difference]: Start difference. First operand 60 states and 69 transitions. Second operand  has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5)
[2024-11-03 13:44:58,167 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 13:45:02,171 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 13:45:05,657 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.48s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 13:45:10,517 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 13:45:14,465 WARN  L539   Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.95s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []
[2024-11-03 13:45:14,745 INFO  L144             Difference]: Subtrahend was deterministic. Have not used determinization.
[2024-11-03 13:45:14,745 INFO  L93              Difference]: Finished difference Result 83 states and 93 transitions.
[2024-11-03 13:45:14,746 INFO  L141   InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. 
[2024-11-03 13:45:14,746 INFO  L78                 Accepts]: Start accepts. Automaton has  has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5) Word has length 52
[2024-11-03 13:45:14,746 INFO  L84                 Accepts]: Finished accepts. some prefix is accepted.
[2024-11-03 13:45:14,747 INFO  L225             Difference]: With dead ends: 83
[2024-11-03 13:45:14,747 INFO  L226             Difference]: Without dead ends: 81
[2024-11-03 13:45:14,748 INFO  L431           NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=105, Invalid=597, Unknown=0, NotChecked=0, Total=702
[2024-11-03 13:45:14,749 INFO  L432           NwaCegarLoop]: 45 mSDtfsCounter, 49 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 22 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.6s IncrementalHoareTripleChecker+Time
[2024-11-03 13:45:14,749 INFO  L433           NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 235 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 168 Invalid, 3 Unknown, 0 Unchecked, 20.6s Time]
[2024-11-03 13:45:14,750 INFO  L82        GeneralOperation]: Start minimizeSevpa. Operand 81 states.
[2024-11-03 13:45:14,757 INFO  L88        GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 55.
[2024-11-03 13:45:14,757 INFO  L82        GeneralOperation]: Start removeUnreachable. Operand  has 55 states, 42 states have (on average 1.0952380952380953) internal successors, (46), 43 states have internal predecessors, (46), 8 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8)
[2024-11-03 13:45:14,758 INFO  L88        GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 62 transitions.
[2024-11-03 13:45:14,758 INFO  L78                 Accepts]: Start accepts. Automaton has 55 states and 62 transitions. Word has length 52
[2024-11-03 13:45:14,759 INFO  L84                 Accepts]: Finished accepts. word is rejected.
[2024-11-03 13:45:14,759 INFO  L471      AbstractCegarLoop]: Abstraction has 55 states and 62 transitions.
[2024-11-03 13:45:14,759 INFO  L472      AbstractCegarLoop]: INTERPOLANT automaton has  has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 8 states have internal predecessors, (30), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 1 states have call successors, (5)
[2024-11-03 13:45:14,759 INFO  L276                IsEmpty]: Start isEmpty. Operand 55 states and 62 transitions.
[2024-11-03 13:45:14,760 INFO  L282                IsEmpty]: Finished isEmpty. Found accepting run of length 53
[2024-11-03 13:45:14,760 INFO  L207           NwaCegarLoop]: Found error trace
[2024-11-03 13:45:14,760 INFO  L215           NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2024-11-03 13:45:14,765 INFO  L552       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (5)] Ended with exit code 0
[2024-11-03 13:45:14,964 WARN  L453      AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:45:14,964 INFO  L396      AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2024-11-03 13:45:14,965 INFO  L157       PredicateUnifier]: Initialized classic predicate unifier
[2024-11-03 13:45:14,965 INFO  L85        PathProgramCache]: Analyzing trace with hash -961382207, now seen corresponding path program 1 times
[2024-11-03 13:45:14,965 INFO  L118   FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES
[2024-11-03 13:45:14,965 INFO  L334   FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1146594749]
[2024-11-03 13:45:14,965 INFO  L95    rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2024-11-03 13:45:14,965 INFO  L173          SolverBuilder]: Constructing external solver with command: bitwuzla
[2024-11-03 13:45:14,965 INFO  L189       MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla
[2024-11-03 13:45:14,966 INFO  L229       MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null)
[2024-11-03 13:45:14,967 INFO  L327       MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (6)] Waiting until timeout for monitored process
[2024-11-03 13:45:15,067 INFO  L136    AnnotateAndAsserter]: Conjunction of SSA is unsat
[2024-11-03 13:45:15,068 INFO  L255         TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 19 conjuncts are in the unsatisfiable core
[2024-11-03 13:45:15,071 INFO  L278         TraceCheckSpWp]: Computing forward predicates...